mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2026-03-24 16:47:29 +01:00
Jan Eitzinger
ba0222d85f
Entire-Session: 3a41c7a4-abf8-484b-96ae-ee5618eea5ba Entire-Strategy: manual-commit Entire-Agent: Claude Code Ephemeral-branch: entire/0aad8f0-e3b0c4
102 lines
539 KiB
JSON
102 lines
539 KiB
JSON
{"type":"file-history-snapshot","messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":false}
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{"parentUuid":null,"isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"SessionStart","hookName":"SessionStart:clear","command":"entire hooks claude-code session-start"},"parentToolUseID":"b00ef795-93ec-48c5-8adf-d49a96a2ed32","toolUseID":"b00ef795-93ec-48c5-8adf-d49a96a2ed32","timestamp":"2026-03-16T10:12:34.962Z","uuid":"62323b49-5343-4dbc-9e12-4595d1cbe76a","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"62323b49-5343-4dbc-9e12-4595d1cbe76a","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":"Implement the following plan:\n\n# Fix: SQLite Write Contention Causing OOM Crash\n\n## Context\n\nThe server crashes daily around 15:00-16:00 with OOM. Logs show \"database is locked\" errors and LDAP sync failures (`UNIQUE constraint failed: hpc_user.username`) shortly before the crash.\n\n**Root cause:** A burst of concurrent DB writers (NATS job start/stop, node state updates, LDAP sync, scheduled tasks) overwhelm SQLite's 5-second busy_timeout. Failed operations and blocked goroutines accumulate, consuming memory until OOM.\n\nThe cascade: burst of job events → DB contention → `SQLITE_BUSY` after 5s → error paths spawn retries/new goroutines → goroutine accumulation → OOM.\n\n---\n\n## Fix 1: Increase busy_timeout (contention relief)\n\n**File:** `internal/repository/dbConnection.go:73`\n\nChange `_busy_timeout` from `5000` to `60000` (60 seconds). Also make it configurable:\n\n**File:** `internal/repository/config.go` — add `BusyTimeoutMs int` field, default 60000.\n\n**File:** `internal/repository/dbConnection.go:73` — use `repoConfig.BusyTimeoutMs` instead of hardcoded value.\n\n**File:** `pkg/archive/sqliteBackend.go:105` — also change hardcoded `busy_timeout=5000` to `busy_timeout=60000`.\n\nWith 60s timeout, SQLite retries internally using its backoff mechanism rather than failing fast. This prevents the \"database is locked\" error cascade.\n\n---\n\n## Fix 2: Batch Node State Updates in a Transaction\n\nCurrently each node state update is a separate SELECT + INSERT (2 DB round-trips per node). A message with 1000 nodes = 2000+ individual DB operations, each acquiring/releasing the write lock.\n\n**File:** `internal/repository/node.go` — add `BatchUpdateNodeStates` method:\n- Accept a slice of `(hostname, cluster, nodeState)` tuples\n- Begin transaction\n- For each node: lookup ID (or insert node), then insert state — all within the same transaction\n- Commit once\n\n**File:** `internal/api/nats.go:348-364` (`processNodestateEvent`) — build slice of updates, call `BatchUpdateNodeStates` instead of per-node `UpdateNodeState`.\n\n**File:** `internal/api/node.go:119-142` (`updateNodeStates`) — same change for the REST path. Note: the REST handler also does health checks per node before DB inserts, so batch only the DB part (the loop at lines 119-142).\n\nKeep the existing `UpdateNodeState` method for single-node use cases.\n\n---\n\n## Fix 3: Fix LDAP Sync Race Condition\n\nThe LDAP sync fails when a user is concurrently created by a login. The error is benign but causes `Sync()` to return early (line 215: `return err`), abandoning remaining users.\n\n**File:** `internal/repository/user.go` — add `AddUserIfNotExists` method using `INSERT OR IGNORE`:\n```go\nfunc (r *UserRepository) AddUserIfNotExists(user *schema.User) error {\n rolesJson, _ := json.Marshal(user.Roles)\n projectsJson, _ := json.Marshal(user.Projects)\n cols := \"username, name, roles, projects, ldap\"\n _, err := r.DB.Exec(\n `INSERT OR IGNORE INTO hpc_user (` + cols + `) VALUES (?, ?, ?, ?, ?)`,\n user.Username, user.Name, string(rolesJson), string(projectsJson), int(user.AuthSource))\n return err\n}\n```\n\n**File:** `internal/auth/ldap.go:213` — change `ur.AddUser(user)` to `ur.AddUserIfNotExists(user)`.\n\nNote: `AddUserIfNotExists` intentionally skips the deprecated default metrics config insertion that `AddUser` does — LDAP-synced users don't need it, and it adds unnecessary DB writes.\n\n---\n\n## Fix 4: Add Semaphore for NATS Handlers\n\nWithout rate limiting, blocked NATS handlers cause unbounded goroutine accumulation.\n\n**File:** `internal/api/nats.go` — add semaphores to `NatsAPI` struct:\n```go\ntype NatsAPI struct {\n JobRepository *repository.JobRepository\n RepositoryMutex sync.Mutex\n jobSem chan struct{}\n nodeSem chan struct{}\n}\n```\n\nInitialize in `NewNatsAPI`: `jobSem: make(chan struct{}, 8)`, `nodeSem: make(chan struct{}, 2)`.\n\nAdd acquire/release in `handleJobEvent` and `handleNodeState`:\n```go\napi.jobSem <- struct{}{}\ndefer func() { <-api.jobSem }()\n```\n\nThis caps concurrent NATS processing at 8 job events + 2 node state updates, preventing goroutine pile-up.\n\n---\n\n## Fix 5: Wrap SyncJobs in a Transaction\n\n**File:** `internal/repository/jobCreate.go:72-126` (`SyncJobs`)\n\nCurrently does SELECT + INSERT...SELECT + DELETE as 3 separate operations. Wrap in a DB transaction:\n- `tx, err := r.DB.Beginx()`\n- Run all three operations on `tx`\n- `tx.Commit()`\n- Do the read-only ID resolution outside the transaction\n\nThis reduces lock acquisitions from 3 to 1 and ensures atomicity.\n\n---\n\n## Implementation Order\n\n1. **Fix 1** (busy_timeout) — quick config change, biggest immediate impact\n2. **Fix 3** (LDAP sync) — eliminates error spam, trivial change\n3. **Fix 2** (batch node states) — biggest contention reduction\n4. **Fix 5** (SyncJobs transaction) — safety + minor contention reduction\n5. **Fix 4** (NATS semaphore) — defense in depth against goroutine accumulation\n\n---\n\n## Verification\n\n1. After Fix 1: Check logs for \"database is locked\" — should be gone or very rare.\n2. After Fix 2: check `Timer updateNodeStates, SQLite Inserts` log line — should be much faster.\n3. After Fix 3: check logs for \"UNIQUE constraint failed\" — should be gone.\n4. Run `go test ./internal/repository/... ./internal/api/... ./internal/auth/...` after all changes.\n5. Load test: simulate burst of 100+ concurrent job start/stop events + node state update with 500 nodes + LDAP sync running simultaneously. Monitor goroutine count and memory.\n\n\nIf you need specific details from before exiting plan mode (like exact code snippets, error messages, or content you generated), read the full transcript at: /Users/jan/.claude/projects/-Users-jan-prg-ClusterCockpit-cc-backend/d36fdafb-27dd-4101-b89a-e2bec3f83825.jsonl"},"uuid":"0cc8876b-10ce-4edf-943f-0617397039d7","timestamp":"2026-03-16T10:12:34.796Z","planContent":"# Fix: SQLite Write Contention Causing OOM Crash\n\n## Context\n\nThe server crashes daily around 15:00-16:00 with OOM. Logs show \"database is locked\" errors and LDAP sync failures (`UNIQUE constraint failed: hpc_user.username`) shortly before the crash.\n\n**Root cause:** A burst of concurrent DB writers (NATS job start/stop, node state updates, LDAP sync, scheduled tasks) overwhelm SQLite's 5-second busy_timeout. Failed operations and blocked goroutines accumulate, consuming memory until OOM.\n\nThe cascade: burst of job events → DB contention → `SQLITE_BUSY` after 5s → error paths spawn retries/new goroutines → goroutine accumulation → OOM.\n\n---\n\n## Fix 1: Increase busy_timeout (contention relief)\n\n**File:** `internal/repository/dbConnection.go:73`\n\nChange `_busy_timeout` from `5000` to `60000` (60 seconds). Also make it configurable:\n\n**File:** `internal/repository/config.go` — add `BusyTimeoutMs int` field, default 60000.\n\n**File:** `internal/repository/dbConnection.go:73` — use `repoConfig.BusyTimeoutMs` instead of hardcoded value.\n\n**File:** `pkg/archive/sqliteBackend.go:105` — also change hardcoded `busy_timeout=5000` to `busy_timeout=60000`.\n\nWith 60s timeout, SQLite retries internally using its backoff mechanism rather than failing fast. This prevents the \"database is locked\" error cascade.\n\n---\n\n## Fix 2: Batch Node State Updates in a Transaction\n\nCurrently each node state update is a separate SELECT + INSERT (2 DB round-trips per node). A message with 1000 nodes = 2000+ individual DB operations, each acquiring/releasing the write lock.\n\n**File:** `internal/repository/node.go` — add `BatchUpdateNodeStates` method:\n- Accept a slice of `(hostname, cluster, nodeState)` tuples\n- Begin transaction\n- For each node: lookup ID (or insert node), then insert state — all within the same transaction\n- Commit once\n\n**File:** `internal/api/nats.go:348-364` (`processNodestateEvent`) — build slice of updates, call `BatchUpdateNodeStates` instead of per-node `UpdateNodeState`.\n\n**File:** `internal/api/node.go:119-142` (`updateNodeStates`) — same change for the REST path. Note: the REST handler also does health checks per node before DB inserts, so batch only the DB part (the loop at lines 119-142).\n\nKeep the existing `UpdateNodeState` method for single-node use cases.\n\n---\n\n## Fix 3: Fix LDAP Sync Race Condition\n\nThe LDAP sync fails when a user is concurrently created by a login. The error is benign but causes `Sync()` to return early (line 215: `return err`), abandoning remaining users.\n\n**File:** `internal/repository/user.go` — add `AddUserIfNotExists` method using `INSERT OR IGNORE`:\n```go\nfunc (r *UserRepository) AddUserIfNotExists(user *schema.User) error {\n rolesJson, _ := json.Marshal(user.Roles)\n projectsJson, _ := json.Marshal(user.Projects)\n cols := \"username, name, roles, projects, ldap\"\n _, err := r.DB.Exec(\n `INSERT OR IGNORE INTO hpc_user (` + cols + `) VALUES (?, ?, ?, ?, ?)`,\n user.Username, user.Name, string(rolesJson), string(projectsJson), int(user.AuthSource))\n return err\n}\n```\n\n**File:** `internal/auth/ldap.go:213` — change `ur.AddUser(user)` to `ur.AddUserIfNotExists(user)`.\n\nNote: `AddUserIfNotExists` intentionally skips the deprecated default metrics config insertion that `AddUser` does — LDAP-synced users don't need it, and it adds unnecessary DB writes.\n\n---\n\n## Fix 4: Add Semaphore for NATS Handlers\n\nWithout rate limiting, blocked NATS handlers cause unbounded goroutine accumulation.\n\n**File:** `internal/api/nats.go` — add semaphores to `NatsAPI` struct:\n```go\ntype NatsAPI struct {\n JobRepository *repository.JobRepository\n RepositoryMutex sync.Mutex\n jobSem chan struct{}\n nodeSem chan struct{}\n}\n```\n\nInitialize in `NewNatsAPI`: `jobSem: make(chan struct{}, 8)`, `nodeSem: make(chan struct{}, 2)`.\n\nAdd acquire/release in `handleJobEvent` and `handleNodeState`:\n```go\napi.jobSem <- struct{}{}\ndefer func() { <-api.jobSem }()\n```\n\nThis caps concurrent NATS processing at 8 job events + 2 node state updates, preventing goroutine pile-up.\n\n---\n\n## Fix 5: Wrap SyncJobs in a Transaction\n\n**File:** `internal/repository/jobCreate.go:72-126` (`SyncJobs`)\n\nCurrently does SELECT + INSERT...SELECT + DELETE as 3 separate operations. Wrap in a DB transaction:\n- `tx, err := r.DB.Beginx()`\n- Run all three operations on `tx`\n- `tx.Commit()`\n- Do the read-only ID resolution outside the transaction\n\nThis reduces lock acquisitions from 3 to 1 and ensures atomicity.\n\n---\n\n## Implementation Order\n\n1. **Fix 1** (busy_timeout) — quick config change, biggest immediate impact\n2. **Fix 3** (LDAP sync) — eliminates error spam, trivial change\n3. **Fix 2** (batch node states) — biggest contention reduction\n4. **Fix 5** (SyncJobs transaction) — safety + minor contention reduction\n5. **Fix 4** (NATS semaphore) — defense in depth against goroutine accumulation\n\n---\n\n## Verification\n\n1. After Fix 1: Check logs for \"database is locked\" — should be gone or very rare.\n2. After Fix 2: check `Timer updateNodeStates, SQLite Inserts` log line — should be much faster.\n3. After Fix 3: check logs for \"UNIQUE constraint failed\" — should be gone.\n4. Run `go test ./internal/repository/... ./internal/api/... ./internal/auth/...` after all changes.\n5. Load test: simulate burst of 100+ concurrent job start/stop events + node state update with 500 nodes + LDAP sync running simultaneously. Monitor goroutine count and memory.\n","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"0cc8876b-10ce-4edf-943f-0617397039d7","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"EogCCkYICxgCKkBW59RCY6tGSB56nAGA//z3lRvJEDn5iJLOClMZGjxNRiWuAGiCmaIgNTdta1Sy/TNzx1kW0Sge7rGR/PxRSRnzEgxrFv+VHTFTR4clEKEaDKuKPoUxVzMZVaZOcCIwSK/bX+m7pbn9zNbcObjeGbtEDnVl0XG+IWu13/bGiaxsvKlev7b3kMGDZZMYJ4PDKnA+xKfCbHmkjIUA2GiAZssRADapW2wdfwvf2TjdNKGhvAUmpIn22yVZAzKMoknki+EsxETxurlV826f8SUVQWHw2gyAIAGvUmo50dlWOQyFl8FHykjapLmt1VYXaRxmaxdvoRGB6c2paNwsN0gPxnuWGAE="}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"05234723-9c30-4f6a-906f-0a704bf53634","timestamp":"2026-03-16T10:12:38.222Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"05234723-9c30-4f6a-906f-0a704bf53634","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"text","text":"I'll start by reading all the files that need to be modified."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"be91377f-2d87-4886-832a-0c3f66162a68","timestamp":"2026-03-16T10:12:38.666Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"be91377f-2d87-4886-832a-0c3f66162a68","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01TzRH5T8DTsP1Dn1zhjYuLh","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/dbConnection.go"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"0e3b4b9e-99f8-48be-903e-a49279316f25","timestamp":"2026-03-16T10:12:39.531Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"0e3b4b9e-99f8-48be-903e-a49279316f25","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01TzRH5T8DTsP1Dn1zhjYuLh","toolUseID":"toolu_01TzRH5T8DTsP1Dn1zhjYuLh","timestamp":"2026-03-16T10:12:39.545Z","uuid":"9a0f39be-6570-40f2-ac77-182757e68941","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"0e3b4b9e-99f8-48be-903e-a49279316f25","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01TzRH5T8DTsP1Dn1zhjYuLh","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package repository\n 7→\n 8→import (\n 9→\t\"database/sql\"\n 10→\t\"fmt\"\n 11→\t\"net/url\"\n 12→\t\"sync\"\n 13→\t\"time\"\n 14→\n 15→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 16→\t\"github.com/jmoiron/sqlx\"\n 17→\t\"github.com/mattn/go-sqlite3\"\n 18→\t\"github.com/qustavo/sqlhooks/v2\"\n 19→)\n 20→\n 21→var (\n 22→\tdbConnOnce sync.Once\n 23→\tdbConnInstance *DBConnection\n 24→)\n 25→\n 26→type DBConnection struct {\n 27→\tDB *sqlx.DB\n 28→\tDriver string\n 29→}\n 30→\n 31→type DatabaseOptions struct {\n 32→\tURL string\n 33→\tMaxOpenConnections int\n 34→\tMaxIdleConnections int\n 35→\tConnectionMaxLifetime time.Duration\n 36→\tConnectionMaxIdleTime time.Duration\n 37→}\n 38→\n 39→func setupSqlite(db *sql.DB, cfg *RepositoryConfig) error {\n 40→\tpragmas := []string{\n 41→\t\t\"temp_store = memory\",\n 42→\t\tfmt.Sprintf(\"soft_heap_limit = %d\", int64(cfg.DbSoftHeapLimitMB)*1024*1024),\n 43→\t}\n 44→\n 45→\tfor _, pragma := range pragmas {\n 46→\t\t_, err := db.Exec(\"PRAGMA \" + pragma)\n 47→\t\tif err != nil {\n 48→\t\t\treturn err\n 49→\t\t}\n 50→\t}\n 51→\n 52→\treturn nil\n 53→}\n 54→\n 55→func Connect(db string) {\n 56→\tvar err error\n 57→\tvar dbHandle *sqlx.DB\n 58→\n 59→\tdbConnOnce.Do(func() {\n 60→\t\topts := DatabaseOptions{\n 61→\t\t\tURL: db,\n 62→\t\t\tMaxOpenConnections: repoConfig.MaxOpenConnections,\n 63→\t\t\tMaxIdleConnections: repoConfig.MaxIdleConnections,\n 64→\t\t\tConnectionMaxLifetime: repoConfig.ConnectionMaxLifetime,\n 65→\t\t\tConnectionMaxIdleTime: repoConfig.ConnectionMaxIdleTime,\n 66→\t\t}\n 67→\n 68→\t\t// TODO: Have separate DB handles for Writes and Reads\n 69→\t\t// Optimize SQLite connection: https://kerkour.com/sqlite-for-servers\n 70→\t\tconnectionURLParams := make(url.Values)\n 71→\t\tconnectionURLParams.Add(\"_txlock\", \"immediate\")\n 72→\t\tconnectionURLParams.Add(\"_journal_mode\", \"WAL\")\n 73→\t\tconnectionURLParams.Add(\"_busy_timeout\", \"5000\")\n 74→\t\tconnectionURLParams.Add(\"_synchronous\", \"NORMAL\")\n 75→\t\tcacheSizeKiB := repoConfig.DbCacheSizeMB * 1024 // Convert MB to KiB\n 76→\t\tconnectionURLParams.Add(\"_cache_size\", fmt.Sprintf(\"-%d\", cacheSizeKiB))\n 77→\t\tconnectionURLParams.Add(\"_foreign_keys\", \"true\")\n 78→\t\topts.URL = fmt.Sprintf(\"file:%s?%s\", opts.URL, connectionURLParams.Encode())\n 79→\n 80→\t\tif cclog.Loglevel() == \"debug\" {\n 81→\t\t\tsql.Register(\"sqlite3WithHooks\", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))\n 82→\t\t\tdbHandle, err = sqlx.Open(\"sqlite3WithHooks\", opts.URL)\n 83→\t\t} else {\n 84→\t\t\tdbHandle, err = sqlx.Open(\"sqlite3\", opts.URL)\n 85→\t\t}\n 86→\n 87→\t\tif err != nil {\n 88→\t\t\tcclog.Abortf(\"DB Connection: Could not connect to SQLite database with sqlx.Open().\\nError: %s\\n\", err.Error())\n 89→\t\t}\n 90→\n 91→\t\terr = setupSqlite(dbHandle.DB, repoConfig)\n 92→\t\tif err != nil {\n 93→\t\t\tcclog.Abortf(\"Failed sqlite db setup.\\nError: %s\\n\", err.Error())\n 94→\t\t}\n 95→\n 96→\t\tcclog.Infof(\"SQLite config: cache_size=%dMB/conn, soft_heap_limit=%dMB, max_conns=%d\",\n 97→\t\t\trepoConfig.DbCacheSizeMB, repoConfig.DbSoftHeapLimitMB, repoConfig.MaxOpenConnections)\n 98→\n 99→\t\tdbHandle.SetMaxOpenConns(opts.MaxOpenConnections)\n 100→\t\tdbHandle.SetMaxIdleConns(opts.MaxIdleConnections)\n 101→\t\tdbHandle.SetConnMaxLifetime(opts.ConnectionMaxLifetime)\n 102→\t\tdbHandle.SetConnMaxIdleTime(opts.ConnectionMaxIdleTime)\n 103→\n 104→\t\tdbConnInstance = &DBConnection{DB: dbHandle}\n 105→\t\terr = checkDBVersion(dbHandle.DB)\n 106→\t\tif err != nil {\n 107→\t\t\tcclog.Abortf(\"DB Connection: Failed DB version check.\\nError: %s\\n\", err.Error())\n 108→\t\t}\n 109→\t})\n 110→}\n 111→\n 112→func GetConnection() *DBConnection {\n 113→\tif dbConnInstance == nil {\n 114→\t\tcclog.Fatalf(\"Database connection not initialized!\")\n 115→\t}\n 116→\n 117→\treturn dbConnInstance\n 118→}\n 119→\n 120→// ResetConnection closes the current database connection and resets the connection state.\n 121→// This function is intended for testing purposes only to allow test isolation.\n 122→func ResetConnection() error {\n 123→\tif dbConnInstance != nil && dbConnInstance.DB != nil {\n 124→\t\tif err := dbConnInstance.DB.Close(); err != nil {\n 125→\t\t\treturn fmt.Errorf(\"failed to close database connection: %w\", err)\n 126→\t\t}\n 127→\t}\n 128→\n 129→\tdbConnInstance = nil\n 130→\tdbConnOnce = sync.Once{}\n 131→\tjobRepoInstance = nil\n 132→\tjobRepoOnce = sync.Once{}\n 133→\tnodeRepoInstance = nil\n 134→\tnodeRepoOnce = sync.Once{}\n 135→\tuserRepoInstance = nil\n 136→\tuserRepoOnce = sync.Once{}\n 137→\tuserCfgRepoInstance = nil\n 138→\tuserCfgRepoOnce = sync.Once{}\n 139→\n 140→\treturn nil\n 141→}\n 142→"}]},"uuid":"053ca6d0-ed8d-4c44-8b34-5684b920c55c","timestamp":"2026-03-16T10:12:39.544Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/dbConnection.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"database/sql\"\n\t\"fmt\"\n\t\"net/url\"\n\t\"sync\"\n\t\"time\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/jmoiron/sqlx\"\n\t\"github.com/mattn/go-sqlite3\"\n\t\"github.com/qustavo/sqlhooks/v2\"\n)\n\nvar (\n\tdbConnOnce sync.Once\n\tdbConnInstance *DBConnection\n)\n\ntype DBConnection struct {\n\tDB *sqlx.DB\n\tDriver string\n}\n\ntype DatabaseOptions struct {\n\tURL string\n\tMaxOpenConnections int\n\tMaxIdleConnections int\n\tConnectionMaxLifetime time.Duration\n\tConnectionMaxIdleTime time.Duration\n}\n\nfunc setupSqlite(db *sql.DB, cfg *RepositoryConfig) error {\n\tpragmas := []string{\n\t\t\"temp_store = memory\",\n\t\tfmt.Sprintf(\"soft_heap_limit = %d\", int64(cfg.DbSoftHeapLimitMB)*1024*1024),\n\t}\n\n\tfor _, pragma := range pragmas {\n\t\t_, err := db.Exec(\"PRAGMA \" + pragma)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc Connect(db string) {\n\tvar err error\n\tvar dbHandle *sqlx.DB\n\n\tdbConnOnce.Do(func() {\n\t\topts := DatabaseOptions{\n\t\t\tURL: db,\n\t\t\tMaxOpenConnections: repoConfig.MaxOpenConnections,\n\t\t\tMaxIdleConnections: repoConfig.MaxIdleConnections,\n\t\t\tConnectionMaxLifetime: repoConfig.ConnectionMaxLifetime,\n\t\t\tConnectionMaxIdleTime: repoConfig.ConnectionMaxIdleTime,\n\t\t}\n\n\t\t// TODO: Have separate DB handles for Writes and Reads\n\t\t// Optimize SQLite connection: https://kerkour.com/sqlite-for-servers\n\t\tconnectionURLParams := make(url.Values)\n\t\tconnectionURLParams.Add(\"_txlock\", \"immediate\")\n\t\tconnectionURLParams.Add(\"_journal_mode\", \"WAL\")\n\t\tconnectionURLParams.Add(\"_busy_timeout\", \"5000\")\n\t\tconnectionURLParams.Add(\"_synchronous\", \"NORMAL\")\n\t\tcacheSizeKiB := repoConfig.DbCacheSizeMB * 1024 // Convert MB to KiB\n\t\tconnectionURLParams.Add(\"_cache_size\", fmt.Sprintf(\"-%d\", cacheSizeKiB))\n\t\tconnectionURLParams.Add(\"_foreign_keys\", \"true\")\n\t\topts.URL = fmt.Sprintf(\"file:%s?%s\", opts.URL, connectionURLParams.Encode())\n\n\t\tif cclog.Loglevel() == \"debug\" {\n\t\t\tsql.Register(\"sqlite3WithHooks\", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))\n\t\t\tdbHandle, err = sqlx.Open(\"sqlite3WithHooks\", opts.URL)\n\t\t} else {\n\t\t\tdbHandle, err = sqlx.Open(\"sqlite3\", opts.URL)\n\t\t}\n\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"DB Connection: Could not connect to SQLite database with sqlx.Open().\\nError: %s\\n\", err.Error())\n\t\t}\n\n\t\terr = setupSqlite(dbHandle.DB, repoConfig)\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"Failed sqlite db setup.\\nError: %s\\n\", err.Error())\n\t\t}\n\n\t\tcclog.Infof(\"SQLite config: cache_size=%dMB/conn, soft_heap_limit=%dMB, max_conns=%d\",\n\t\t\trepoConfig.DbCacheSizeMB, repoConfig.DbSoftHeapLimitMB, repoConfig.MaxOpenConnections)\n\n\t\tdbHandle.SetMaxOpenConns(opts.MaxOpenConnections)\n\t\tdbHandle.SetMaxIdleConns(opts.MaxIdleConnections)\n\t\tdbHandle.SetConnMaxLifetime(opts.ConnectionMaxLifetime)\n\t\tdbHandle.SetConnMaxIdleTime(opts.ConnectionMaxIdleTime)\n\n\t\tdbConnInstance = &DBConnection{DB: dbHandle}\n\t\terr = checkDBVersion(dbHandle.DB)\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"DB Connection: Failed DB version check.\\nError: %s\\n\", err.Error())\n\t\t}\n\t})\n}\n\nfunc GetConnection() *DBConnection {\n\tif dbConnInstance == nil {\n\t\tcclog.Fatalf(\"Database connection not initialized!\")\n\t}\n\n\treturn dbConnInstance\n}\n\n// ResetConnection closes the current database connection and resets the connection state.\n// This function is intended for testing purposes only to allow test isolation.\nfunc ResetConnection() error {\n\tif dbConnInstance != nil && dbConnInstance.DB != nil {\n\t\tif err := dbConnInstance.DB.Close(); err != nil {\n\t\t\treturn fmt.Errorf(\"failed to close database connection: %w\", err)\n\t\t}\n\t}\n\n\tdbConnInstance = nil\n\tdbConnOnce = sync.Once{}\n\tjobRepoInstance = nil\n\tjobRepoOnce = sync.Once{}\n\tnodeRepoInstance = nil\n\tnodeRepoOnce = sync.Once{}\n\tuserRepoInstance = nil\n\tuserRepoOnce = sync.Once{}\n\tuserCfgRepoInstance = nil\n\tuserCfgRepoOnce = sync.Once{}\n\n\treturn nil\n}\n","numLines":142,"startLine":1,"totalLines":142}},"sourceToolAssistantUUID":"0e3b4b9e-99f8-48be-903e-a49279316f25","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"352d7440-d01b-4d22-bd9c-3f56616211e2","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_012orF9pg72YJWFiTr5U3zzS","toolUseID":"toolu_012orF9pg72YJWFiTr5U3zzS","timestamp":"2026-03-16T10:12:40.045Z","uuid":"6db8547c-bb54-48b0-9773-cad21dff17bf","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"352d7440-d01b-4d22-bd9c-3f56616211e2","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_012orF9pg72YJWFiTr5U3zzS","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package repository\n 7→\n 8→import \"time\"\n 9→\n 10→// RepositoryConfig holds configuration for repository operations.\n 11→// All fields have sensible defaults, so this configuration is optional.\n 12→type RepositoryConfig struct {\n 13→\t// CacheSize is the LRU cache size in bytes for job metadata and energy footprints.\n 14→\t// Default: 1MB (1024 * 1024 bytes)\n 15→\tCacheSize int\n 16→\n 17→\t// MaxOpenConnections is the maximum number of open database connections.\n 18→\t// Default: 4\n 19→\tMaxOpenConnections int\n 20→\n 21→\t// MaxIdleConnections is the maximum number of idle database connections.\n 22→\t// Default: 4\n 23→\tMaxIdleConnections int\n 24→\n 25→\t// ConnectionMaxLifetime is the maximum amount of time a connection may be reused.\n 26→\t// Default: 1 hour\n 27→\tConnectionMaxLifetime time.Duration\n 28→\n 29→\t// ConnectionMaxIdleTime is the maximum amount of time a connection may be idle.\n 30→\t// Default: 10 minutes\n 31→\tConnectionMaxIdleTime time.Duration\n 32→\n 33→\t// MinRunningJobDuration is the minimum duration in seconds for a job to be\n 34→\t// considered in \"running jobs\" queries. This filters out very short jobs.\n 35→\t// Default: 600 seconds (10 minutes)\n 36→\tMinRunningJobDuration int\n 37→\n 38→\t// DbCacheSizeMB is the SQLite page cache size per connection in MB.\n 39→\t// Uses negative PRAGMA cache_size notation (KiB). With MaxOpenConnections=4\n 40→\t// and DbCacheSizeMB=2048, total page cache is up to 8GB.\n 41→\t// Default: 2048 (2GB)\n 42→\tDbCacheSizeMB int\n 43→\n 44→\t// DbSoftHeapLimitMB is the process-wide SQLite soft heap limit in MB.\n 45→\t// SQLite will try to release cache pages to stay under this limit.\n 46→\t// It's a soft limit — queries won't fail, but cache eviction becomes more aggressive.\n 47→\t// Default: 16384 (16GB)\n 48→\tDbSoftHeapLimitMB int\n 49→}\n 50→\n 51→// DefaultConfig returns the default repository configuration.\n 52→// These values are optimized for typical deployments.\n 53→func DefaultConfig() *RepositoryConfig {\n 54→\treturn &RepositoryConfig{\n 55→\t\tCacheSize: 1 * 1024 * 1024, // 1MB\n 56→\t\tMaxOpenConnections: 4,\n 57→\t\tMaxIdleConnections: 4,\n 58→\t\tConnectionMaxLifetime: time.Hour,\n 59→\t\tConnectionMaxIdleTime: 10 * time.Minute,\n 60→\t\tMinRunningJobDuration: 600, // 10 minutes\n 61→\t\tDbCacheSizeMB: 2048, // 2GB per connection\n 62→\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n 63→\t}\n 64→}\n 65→\n 66→// repoConfig is the package-level configuration instance.\n 67→// It is initialized with defaults and can be overridden via SetConfig.\n 68→var repoConfig *RepositoryConfig = DefaultConfig()\n 69→\n 70→// SetConfig sets the repository configuration.\n 71→// This must be called before any repository initialization (Connect, GetJobRepository, etc.).\n 72→// If not called, default values from DefaultConfig() are used.\n 73→func SetConfig(cfg *RepositoryConfig) {\n 74→\tif cfg != nil {\n 75→\t\trepoConfig = cfg\n 76→\t}\n 77→}\n 78→\n 79→// GetConfig returns the current repository configuration.\n 80→func GetConfig() *RepositoryConfig {\n 81→\treturn repoConfig\n 82→}\n 83→"}]},"uuid":"85257af6-41af-4431-9199-d7d5cd1f1c06","timestamp":"2026-03-16T10:12:40.045Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/config.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport \"time\"\n\n// RepositoryConfig holds configuration for repository operations.\n// All fields have sensible defaults, so this configuration is optional.\ntype RepositoryConfig struct {\n\t// CacheSize is the LRU cache size in bytes for job metadata and energy footprints.\n\t// Default: 1MB (1024 * 1024 bytes)\n\tCacheSize int\n\n\t// MaxOpenConnections is the maximum number of open database connections.\n\t// Default: 4\n\tMaxOpenConnections int\n\n\t// MaxIdleConnections is the maximum number of idle database connections.\n\t// Default: 4\n\tMaxIdleConnections int\n\n\t// ConnectionMaxLifetime is the maximum amount of time a connection may be reused.\n\t// Default: 1 hour\n\tConnectionMaxLifetime time.Duration\n\n\t// ConnectionMaxIdleTime is the maximum amount of time a connection may be idle.\n\t// Default: 10 minutes\n\tConnectionMaxIdleTime time.Duration\n\n\t// MinRunningJobDuration is the minimum duration in seconds for a job to be\n\t// considered in \"running jobs\" queries. This filters out very short jobs.\n\t// Default: 600 seconds (10 minutes)\n\tMinRunningJobDuration int\n\n\t// DbCacheSizeMB is the SQLite page cache size per connection in MB.\n\t// Uses negative PRAGMA cache_size notation (KiB). With MaxOpenConnections=4\n\t// and DbCacheSizeMB=2048, total page cache is up to 8GB.\n\t// Default: 2048 (2GB)\n\tDbCacheSizeMB int\n\n\t// DbSoftHeapLimitMB is the process-wide SQLite soft heap limit in MB.\n\t// SQLite will try to release cache pages to stay under this limit.\n\t// It's a soft limit — queries won't fail, but cache eviction becomes more aggressive.\n\t// Default: 16384 (16GB)\n\tDbSoftHeapLimitMB int\n}\n\n// DefaultConfig returns the default repository configuration.\n// These values are optimized for typical deployments.\nfunc DefaultConfig() *RepositoryConfig {\n\treturn &RepositoryConfig{\n\t\tCacheSize: 1 * 1024 * 1024, // 1MB\n\t\tMaxOpenConnections: 4,\n\t\tMaxIdleConnections: 4,\n\t\tConnectionMaxLifetime: time.Hour,\n\t\tConnectionMaxIdleTime: 10 * time.Minute,\n\t\tMinRunningJobDuration: 600, // 10 minutes\n\t\tDbCacheSizeMB: 2048, // 2GB per connection\n\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n\t}\n}\n\n// repoConfig is the package-level configuration instance.\n// It is initialized with defaults and can be overridden via SetConfig.\nvar repoConfig *RepositoryConfig = DefaultConfig()\n\n// SetConfig sets the repository configuration.\n// This must be called before any repository initialization (Connect, GetJobRepository, etc.).\n// If not called, default values from DefaultConfig() are used.\nfunc SetConfig(cfg *RepositoryConfig) {\n\tif cfg != nil {\n\t\trepoConfig = cfg\n\t}\n}\n\n// GetConfig returns the current repository configuration.\nfunc GetConfig() *RepositoryConfig {\n\treturn repoConfig\n}\n","numLines":83,"startLine":1,"totalLines":83}},"sourceToolAssistantUUID":"352d7440-d01b-4d22-bd9c-3f56616211e2","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"85257af6-41af-4431-9199-d7d5cd1f1c06","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01ApteHWPiKLmA7YP4uFfRyv","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/pkg/archive/sqliteBackend.go"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"641c9a76-91d8-4156-a19d-7ccb6d93cf69","timestamp":"2026-03-16T10:12:40.450Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"641c9a76-91d8-4156-a19d-7ccb6d93cf69","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01ApteHWPiKLmA7YP4uFfRyv","toolUseID":"toolu_01ApteHWPiKLmA7YP4uFfRyv","timestamp":"2026-03-16T10:12:40.472Z","uuid":"e613e3e6-6827-412b-aa59-db18bca3b3b3","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"641c9a76-91d8-4156-a19d-7ccb6d93cf69","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01ApteHWPiKLmA7YP4uFfRyv","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package archive\n 7→\n 8→import (\n 9→\t\"bytes\"\n 10→\t\"compress/gzip\"\n 11→\t\"database/sql\"\n 12→\t\"encoding/json\"\n 13→\t\"fmt\"\n 14→\t\"io\"\n 15→\t\"math\"\n 16→\t\"os\"\n 17→\t\"slices\"\n 18→\t\"strconv\"\n 19→\t\"sync\"\n 20→\t\"text/tabwriter\"\n 21→\t\"time\"\n 22→\n 23→\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n 24→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 25→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 26→\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n 27→\t_ \"github.com/mattn/go-sqlite3\"\n 28→)\n 29→\n 30→// SqliteArchiveConfig holds the configuration for the SQLite archive backend.\n 31→type SqliteArchiveConfig struct {\n 32→\tDBPath string `json:\"db-path\"` // Path to SQLite database file\n 33→}\n 34→\n 35→// SqliteArchive implements ArchiveBackend using a SQLite database with BLOB storage.\n 36→// Job metadata and data are stored as JSON BLOBs with indexes for fast queries.\n 37→//\n 38→// Uses WAL (Write-Ahead Logging) mode for better concurrency and a 64MB cache.\n 39→type SqliteArchive struct {\n 40→\tdb *sql.DB // SQLite database connection\n 41→\tclusters []string // List of discovered cluster names\n 42→}\n 43→\n 44→// sqliteSchema defines the database schema for SQLite archive backend.\n 45→// Jobs table: stores job metadata and data as BLOBs with compression flag\n 46→// Clusters table: stores cluster configurations\n 47→// Metadata table: stores version and other key-value pairs\n 48→const sqliteSchema = `\n 49→CREATE TABLE IF NOT EXISTS jobs (\n 50→ id INTEGER PRIMARY KEY AUTOINCREMENT,\n 51→ job_id INTEGER NOT NULL,\n 52→ cluster TEXT NOT NULL,\n 53→ start_time INTEGER NOT NULL,\n 54→ meta_json BLOB NOT NULL,\n 55→ data_json BLOB,\n 56→ data_compressed BOOLEAN DEFAULT 0,\n 57→ created_at INTEGER NOT NULL,\n 58→ updated_at INTEGER NOT NULL,\n 59→ UNIQUE(job_id, cluster, start_time)\n 60→);\n 61→\n 62→CREATE INDEX IF NOT EXISTS idx_jobs_cluster ON jobs(cluster);\n 63→CREATE INDEX IF NOT EXISTS idx_jobs_start_time ON jobs(start_time);\n 64→CREATE INDEX IF NOT EXISTS idx_jobs_order ON jobs(cluster, start_time);\n 65→CREATE INDEX IF NOT EXISTS idx_jobs_lookup ON jobs(cluster, job_id, start_time);\n 66→\n 67→CREATE TABLE IF NOT EXISTS clusters (\n 68→ name TEXT PRIMARY KEY,\n 69→ config_json BLOB NOT NULL,\n 70→ updated_at INTEGER NOT NULL\n 71→);\n 72→\n 73→CREATE TABLE IF NOT EXISTS metadata (\n 74→ key TEXT PRIMARY KEY,\n 75→ value TEXT NOT NULL\n 76→);\n 77→`\n 78→\n 79→func (sa *SqliteArchive) Init(rawConfig json.RawMessage) (uint64, error) {\n 80→\tvar cfg SqliteArchiveConfig\n 81→\tif err := json.Unmarshal(rawConfig, &cfg); err != nil {\n 82→\t\tcclog.Warnf(\"SqliteArchive Init() > Unmarshal error: %#v\", err)\n 83→\t\treturn 0, err\n 84→\t}\n 85→\n 86→\tif cfg.DBPath == \"\" {\n 87→\t\terr := fmt.Errorf(\"SqliteArchive Init(): empty database path\")\n 88→\t\tcclog.Errorf(\"SqliteArchive Init() > config error: %v\", err)\n 89→\t\treturn 0, err\n 90→\t}\n 91→\n 92→\t// Open SQLite database\n 93→\tdb, err := sql.Open(\"sqlite3\", cfg.DBPath)\n 94→\tif err != nil {\n 95→\t\tcclog.Errorf(\"SqliteArchive Init() > failed to open database: %v\", err)\n 96→\t\treturn 0, err\n 97→\t}\n 98→\tsa.db = db\n 99→\n 100→\t// Set pragmas for better performance\n 101→\tpragmas := []string{\n 102→\t\t\"PRAGMA journal_mode=WAL\",\n 103→\t\t\"PRAGMA synchronous=NORMAL\",\n 104→\t\t\"PRAGMA cache_size=-64000\", // 64MB cache\n 105→\t\t\"PRAGMA busy_timeout=5000\",\n 106→\t}\n 107→\tfor _, pragma := range pragmas {\n 108→\t\tif _, err := sa.db.Exec(pragma); err != nil {\n 109→\t\t\tcclog.Warnf(\"SqliteArchive Init() > pragma failed: %v\", err)\n 110→\t\t}\n 111→\t}\n 112→\n 113→\t// Create schema\n 114→\tif _, err := sa.db.Exec(sqliteSchema); err != nil {\n 115→\t\tcclog.Errorf(\"SqliteArchive Init() > schema creation failed: %v\", err)\n 116→\t\treturn 0, err\n 117→\t}\n 118→\n 119→\t// Check/set version\n 120→\tvar versionStr string\n 121→\terr = sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'version'\").Scan(&versionStr)\n 122→\tif err == sql.ErrNoRows {\n 123→\t\t// First time initialization, set version\n 124→\t\t_, err = sa.db.Exec(\"INSERT INTO metadata (key, value) VALUES ('version', ?)\", fmt.Sprintf(\"%d\", Version))\n 125→\t\tif err != nil {\n 126→\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to set version: %v\", err)\n 127→\t\t\treturn 0, err\n 128→\t\t}\n 129→\t\tversionStr = fmt.Sprintf(\"%d\", Version)\n 130→\t} else if err != nil {\n 131→\t\tcclog.Errorf(\"SqliteArchive Init() > failed to read version: %v\", err)\n 132→\t\treturn 0, err\n 133→\t}\n 134→\n 135→\tversion, err := strconv.ParseUint(versionStr, 10, 64)\n 136→\tif err != nil {\n 137→\t\tcclog.Errorf(\"SqliteArchive Init() > version parse error: %v\", err)\n 138→\t\treturn 0, err\n 139→\t}\n 140→\n 141→\tif version != Version {\n 142→\t\treturn version, fmt.Errorf(\"unsupported version %d, need %d\", version, Version)\n 143→\t}\n 144→\n 145→\t// Discover clusters\n 146→\tsa.clusters = []string{}\n 147→\trows, err := sa.db.Query(\"SELECT DISTINCT cluster FROM jobs ORDER BY cluster\")\n 148→\tif err != nil {\n 149→\t\tcclog.Errorf(\"SqliteArchive Init() > failed to query clusters: %v\", err)\n 150→\t\treturn 0, err\n 151→\t}\n 152→\tdefer rows.Close()\n 153→\n 154→\tfor rows.Next() {\n 155→\t\tvar cluster string\n 156→\t\tif err := rows.Scan(&cluster); err != nil {\n 157→\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to scan cluster: %v\", err)\n 158→\t\t\tcontinue\n 159→\t\t}\n 160→\t\tsa.clusters = append(sa.clusters, cluster)\n 161→\t}\n 162→\n 163→\tcclog.Infof(\"SqliteArchive initialized with database '%s', found %d clusters\", cfg.DBPath, len(sa.clusters))\n 164→\treturn version, nil\n 165→}\n 166→\n 167→func (sa *SqliteArchive) Info() {\n 168→\tfmt.Printf(\"SQLite Job archive database\\n\")\n 169→\n 170→\tci := make(map[string]*clusterInfo)\n 171→\n 172→\trows, err := sa.db.Query(`\n 173→\t\tSELECT cluster, COUNT(*), MIN(start_time), MAX(start_time),\n 174→\t\t SUM(LENGTH(meta_json) + COALESCE(LENGTH(data_json), 0))\n 175→\t\tFROM jobs\n 176→\t\tGROUP BY cluster\n 177→\t`)\n 178→\tif err != nil {\n 179→\t\tcclog.Fatalf(\"SqliteArchive Info() > query failed: %s\", err.Error())\n 180→\t}\n 181→\tdefer rows.Close()\n 182→\n 183→\tfor rows.Next() {\n 184→\t\tvar cluster string\n 185→\t\tvar numJobs int\n 186→\t\tvar dateFirst, dateLast int64\n 187→\t\tvar diskSize int64\n 188→\n 189→\t\tif err := rows.Scan(&cluster, &numJobs, &dateFirst, &dateLast, &diskSize); err != nil {\n 190→\t\t\tcclog.Errorf(\"SqliteArchive Info() > scan failed: %v\", err)\n 191→\t\t\tcontinue\n 192→\t\t}\n 193→\n 194→\t\tci[cluster] = &clusterInfo{\n 195→\t\t\tnumJobs: numJobs,\n 196→\t\t\tdateFirst: dateFirst,\n 197→\t\t\tdateLast: dateLast,\n 198→\t\t\tdiskSize: float64(diskSize) / (1024 * 1024), // Convert to MB\n 199→\t\t}\n 200→\t}\n 201→\n 202→\tcit := clusterInfo{dateFirst: time.Now().Unix()}\n 203→\tw := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', tabwriter.Debug)\n 204→\tfmt.Fprintln(w, \"cluster\\t#jobs\\tfrom\\tto\\tsize (MB)\")\n 205→\tfor cluster, clusterInfo := range ci {\n 206→\t\tfmt.Fprintf(w, \"%s\\t%d\\t%s\\t%s\\t%.2f\\n\", cluster,\n 207→\t\t\tclusterInfo.numJobs,\n 208→\t\t\ttime.Unix(clusterInfo.dateFirst, 0),\n 209→\t\t\ttime.Unix(clusterInfo.dateLast, 0),\n 210→\t\t\tclusterInfo.diskSize)\n 211→\n 212→\t\tcit.numJobs += clusterInfo.numJobs\n 213→\t\tcit.dateFirst = util.Min(cit.dateFirst, clusterInfo.dateFirst)\n 214→\t\tcit.dateLast = util.Max(cit.dateLast, clusterInfo.dateLast)\n 215→\t\tcit.diskSize += clusterInfo.diskSize\n 216→\t}\n 217→\n 218→\tfmt.Fprintf(w, \"TOTAL\\t%d\\t%s\\t%s\\t%.2f\\n\",\n 219→\t\tcit.numJobs, time.Unix(cit.dateFirst, 0), time.Unix(cit.dateLast, 0), cit.diskSize)\n 220→\tw.Flush()\n 221→}\n 222→\n 223→func (sa *SqliteArchive) Exists(job *schema.Job) bool {\n 224→\tvar count int\n 225→\terr := sa.db.QueryRow(\"SELECT COUNT(*) FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n 226→\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&count)\n 227→\treturn err == nil && count > 0\n 228→}\n 229→\n 230→func (sa *SqliteArchive) LoadJobMeta(job *schema.Job) (*schema.Job, error) {\n 231→\tvar metaBlob []byte\n 232→\terr := sa.db.QueryRow(\"SELECT meta_json FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n 233→\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&metaBlob)\n 234→\tif err != nil {\n 235→\t\tcclog.Errorf(\"SqliteArchive LoadJobMeta() > query error: %v\", err)\n 236→\t\treturn nil, err\n 237→\t}\n 238→\n 239→\tif config.Keys.Validate {\n 240→\t\tif err := schema.Validate(schema.Meta, bytes.NewReader(metaBlob)); err != nil {\n 241→\t\t\treturn nil, fmt.Errorf(\"validate job meta: %v\", err)\n 242→\t\t}\n 243→\t}\n 244→\n 245→\treturn DecodeJobMeta(bytes.NewReader(metaBlob))\n 246→}\n 247→\n 248→func (sa *SqliteArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {\n 249→\tvar dataBlob []byte\n 250→\tvar compressed bool\n 251→\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n 252→\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n 253→\tif err != nil {\n 254→\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > query error: %v\", err)\n 255→\t\treturn nil, err\n 256→\t}\n 257→\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n 258→\n 259→\tvar reader io.Reader = bytes.NewReader(dataBlob)\n 260→\tif compressed {\n 261→\t\tgzipReader, err := gzip.NewReader(reader)\n 262→\t\tif err != nil {\n 263→\t\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > gzip error: %v\", err)\n 264→\t\t\treturn nil, err\n 265→\t\t}\n 266→\t\tdefer gzipReader.Close()\n 267→\t\treader = gzipReader\n 268→\t}\n 269→\n 270→\tif config.Keys.Validate {\n 271→\t\tdata, _ := io.ReadAll(reader)\n 272→\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n 273→\t\t\treturn schema.JobData{}, fmt.Errorf(\"validate job data: %v\", err)\n 274→\t\t}\n 275→\t\treturn DecodeJobData(bytes.NewReader(data), key)\n 276→\t}\n 277→\n 278→\treturn DecodeJobData(reader, key)\n 279→}\n 280→\n 281→func (sa *SqliteArchive) LoadJobStats(job *schema.Job) (schema.ScopedJobStats, error) {\n 282→\tvar dataBlob []byte\n 283→\tvar compressed bool\n 284→\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n 285→\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n 286→\tif err != nil {\n 287→\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > query error: %v\", err)\n 288→\t\treturn nil, err\n 289→\t}\n 290→\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n 291→\n 292→\tvar reader io.Reader = bytes.NewReader(dataBlob)\n 293→\tif compressed {\n 294→\t\tgzipReader, err := gzip.NewReader(reader)\n 295→\t\tif err != nil {\n 296→\t\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > gzip error: %v\", err)\n 297→\t\t\treturn nil, err\n 298→\t\t}\n 299→\t\tdefer gzipReader.Close()\n 300→\t\treader = gzipReader\n 301→\t}\n 302→\n 303→\tif config.Keys.Validate {\n 304→\t\tdata, _ := io.ReadAll(reader)\n 305→\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n 306→\t\t\treturn nil, fmt.Errorf(\"validate job data: %v\", err)\n 307→\t\t}\n 308→\t\treturn DecodeJobStats(bytes.NewReader(data), key)\n 309→\t}\n 310→\n 311→\treturn DecodeJobStats(reader, key)\n 312→}\n 313→\n 314→func (sa *SqliteArchive) LoadClusterCfg(name string) (*schema.Cluster, error) {\n 315→\tvar configBlob []byte\n 316→\terr := sa.db.QueryRow(\"SELECT config_json FROM clusters WHERE name = ?\", name).Scan(&configBlob)\n 317→\tif err != nil {\n 318→\t\tcclog.Errorf(\"SqliteArchive LoadClusterCfg() > query error: %v\", err)\n 319→\t\treturn nil, err\n 320→\t}\n 321→\n 322→\tif config.Keys.Validate {\n 323→\t\tif err := schema.Validate(schema.ClusterCfg, bytes.NewReader(configBlob)); err != nil {\n 324→\t\t\tcclog.Warnf(\"Validate cluster config: %v\\n\", err)\n 325→\t\t\treturn &schema.Cluster{}, fmt.Errorf(\"validate cluster config: %v\", err)\n 326→\t\t}\n 327→\t}\n 328→\n 329→\treturn DecodeCluster(bytes.NewReader(configBlob))\n 330→}\n 331→\n 332→func (sa *SqliteArchive) StoreJobMeta(job *schema.Job) error {\n 333→\tvar metaBuf bytes.Buffer\n 334→\tif err := EncodeJobMeta(&metaBuf, job); err != nil {\n 335→\t\tcclog.Error(\"SqliteArchive StoreJobMeta() > encoding error\")\n 336→\t\treturn err\n 337→\t}\n 338→\n 339→\tnow := time.Now().Unix()\n 340→\t_, err := sa.db.Exec(`\n 341→\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, created_at, updated_at)\n 342→\t\tVALUES (?, ?, ?, ?, ?, ?)\n 343→\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n 344→\t\t\tmeta_json = excluded.meta_json,\n 345→\t\t\tupdated_at = excluded.updated_at\n 346→\t`, job.JobID, job.Cluster, job.StartTime, metaBuf.Bytes(), now, now)\n 347→\tif err != nil {\n 348→\t\tcclog.Errorf(\"SqliteArchive StoreJobMeta() > insert error: %v\", err)\n 349→\t\treturn err\n 350→\t}\n 351→\n 352→\treturn nil\n 353→}\n 354→\n 355→func (sa *SqliteArchive) ImportJob(jobMeta *schema.Job, jobData *schema.JobData) error {\n 356→\tvar metaBuf, dataBuf bytes.Buffer\n 357→\tif err := EncodeJobMeta(&metaBuf, jobMeta); err != nil {\n 358→\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding meta error\")\n 359→\t\treturn err\n 360→\t}\n 361→\tif err := EncodeJobData(&dataBuf, jobData); err != nil {\n 362→\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding data error\")\n 363→\t\treturn err\n 364→\t}\n 365→\n 366→\tvar dataBytes []byte\n 367→\tvar compressed bool\n 368→\n 369→\tif dataBuf.Len() > 2000 {\n 370→\t\tvar compressedBuf bytes.Buffer\n 371→\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n 372→\t\tif _, err := gzipWriter.Write(dataBuf.Bytes()); err != nil {\n 373→\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip write error: %v\", err)\n 374→\t\t\treturn err\n 375→\t\t}\n 376→\t\tif err := gzipWriter.Close(); err != nil {\n 377→\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip close error: %v\", err)\n 378→\t\t\treturn err\n 379→\t\t}\n 380→\t\tdataBytes = compressedBuf.Bytes()\n 381→\t\tcompressed = true\n 382→\t} else {\n 383→\t\tdataBytes = dataBuf.Bytes()\n 384→\t\tcompressed = false\n 385→\t}\n 386→\n 387→\tnow := time.Now().Unix()\n 388→\t_, err := sa.db.Exec(`\n 389→\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, data_json, data_compressed, created_at, updated_at)\n 390→\t\tVALUES (?, ?, ?, ?, ?, ?, ?, ?)\n 391→\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n 392→\t\t\tmeta_json = excluded.meta_json,\n 393→\t\t\tdata_json = excluded.data_json,\n 394→\t\t\tdata_compressed = excluded.data_compressed,\n 395→\t\t\tupdated_at = excluded.updated_at\n 396→\t`, jobMeta.JobID, jobMeta.Cluster, jobMeta.StartTime, metaBuf.Bytes(), dataBytes, compressed, now, now)\n 397→\tif err != nil {\n 398→\t\tcclog.Errorf(\"SqliteArchive ImportJob() > insert error: %v\", err)\n 399→\t\treturn err\n 400→\t}\n 401→\n 402→\treturn nil\n 403→}\n 404→\n 405→func (sa *SqliteArchive) GetClusters() []string {\n 406→\treturn sa.clusters\n 407→}\n 408→\n 409→func (sa *SqliteArchive) CleanUp(jobs []*schema.Job) {\n 410→\tstart := time.Now()\n 411→\tcount := 0\n 412→\n 413→\ttx, err := sa.db.Begin()\n 414→\tif err != nil {\n 415→\t\tcclog.Errorf(\"SqliteArchive CleanUp() > transaction error: %v\", err)\n 416→\t\treturn\n 417→\t}\n 418→\tdefer tx.Rollback()\n 419→\n 420→\tstmt, err := tx.Prepare(\"DELETE FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n 421→\tif err != nil {\n 422→\t\tcclog.Errorf(\"SqliteArchive CleanUp() > prepare error: %v\", err)\n 423→\t\treturn\n 424→\t}\n 425→\tdefer stmt.Close()\n 426→\n 427→\tfor _, job := range jobs {\n 428→\t\tif job == nil {\n 429→\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() error: job is nil\")\n 430→\t\t\tcontinue\n 431→\t\t}\n 432→\n 433→\t\tif _, err := stmt.Exec(job.JobID, job.Cluster, job.StartTime); err != nil {\n 434→\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() > delete error: %v\", err)\n 435→\t\t} else {\n 436→\t\t\tcount++\n 437→\t\t}\n 438→\t}\n 439→\n 440→\tif err := tx.Commit(); err != nil {\n 441→\t\tcclog.Errorf(\"SqliteArchive CleanUp() > commit error: %v\", err)\n 442→\t\treturn\n 443→\t}\n 444→\n 445→\tcclog.Infof(\"Retention Service - Remove %d jobs from SQLite in %s\", count, time.Since(start))\n 446→}\n 447→\n 448→func (sa *SqliteArchive) Move(jobs []*schema.Job, targetPath string) {\n 449→\t// For SQLite, \"move\" means updating the cluster field or similar\n 450→\t// This is interpretation-dependent; for now we'll just log\n 451→\tcclog.Warnf(\"SqliteArchive Move() is not fully implemented - moves within database not applicable\")\n 452→}\n 453→\n 454→func (sa *SqliteArchive) Clean(before int64, after int64) {\n 455→\tif after == 0 {\n 456→\t\tafter = math.MaxInt64\n 457→\t}\n 458→\n 459→\tresult, err := sa.db.Exec(\"DELETE FROM jobs WHERE start_time < ? OR start_time > ?\", before, after)\n 460→\tif err != nil {\n 461→\t\tcclog.Fatalf(\"SqliteArchive Clean() > delete error: %s\", err.Error())\n 462→\t}\n 463→\n 464→\trowsAffected, _ := result.RowsAffected()\n 465→\tcclog.Infof(\"SqliteArchive Clean() removed %d jobs\", rowsAffected)\n 466→}\n 467→\n 468→func (sa *SqliteArchive) Compress(jobs []*schema.Job) {\n 469→\tvar cnt int\n 470→\tstart := time.Now()\n 471→\n 472→\ttx, err := sa.db.Begin()\n 473→\tif err != nil {\n 474→\t\tcclog.Errorf(\"SqliteArchive Compress() > transaction error: %v\", err)\n 475→\t\treturn\n 476→\t}\n 477→\tdefer tx.Rollback()\n 478→\n 479→\tstmt, err := tx.Prepare(\"UPDATE jobs SET data_json = ?, data_compressed = 1 WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n 480→\tif err != nil {\n 481→\t\tcclog.Errorf(\"SqliteArchive Compress() > prepare error: %v\", err)\n 482→\t\treturn\n 483→\t}\n 484→\tdefer stmt.Close()\n 485→\n 486→\tfor _, job := range jobs {\n 487→\t\tvar dataBlob []byte\n 488→\t\tvar compressed bool\n 489→\t\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n 490→\t\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n 491→\t\tif err != nil || compressed || len(dataBlob) < 2000 {\n 492→\t\t\tcontinue // Skip if error, already compressed, or too small\n 493→\t\t}\n 494→\n 495→\t\t// Compress the data\n 496→\t\tvar compressedBuf bytes.Buffer\n 497→\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n 498→\t\tif _, err := gzipWriter.Write(dataBlob); err != nil {\n 499→\t\t\tcclog.Errorf(\"SqliteArchive Compress() > gzip error: %v\", err)\n 500→\t\t\tgzipWriter.Close()\n 501→\t\t\tcontinue\n 502→\t\t}\n 503→\t\tgzipWriter.Close()\n 504→\n 505→\t\tif _, err := stmt.Exec(compressedBuf.Bytes(), job.JobID, job.Cluster, job.StartTime); err != nil {\n 506→\t\t\tcclog.Errorf(\"SqliteArchive Compress() > update error: %v\", err)\n 507→\t\t} else {\n 508→\t\t\tcnt++\n 509→\t\t}\n 510→\t}\n 511→\n 512→\tif err := tx.Commit(); err != nil {\n 513→\t\tcclog.Errorf(\"SqliteArchive Compress() > commit error: %v\", err)\n 514→\t\treturn\n 515→\t}\n 516→\n 517→\tcclog.Infof(\"Compression Service - %d jobs in SQLite took %s\", cnt, time.Since(start))\n 518→}\n 519→\n 520→func (sa *SqliteArchive) CompressLast(starttime int64) int64 {\n 521→\tvar lastStr string\n 522→\terr := sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'compress_last'\").Scan(&lastStr)\n 523→\n 524→\tvar last int64\n 525→\tif err == sql.ErrNoRows {\n 526→\t\tlast = starttime\n 527→\t} else if err != nil {\n 528→\t\tcclog.Errorf(\"SqliteArchive CompressLast() > query error: %v\", err)\n 529→\t\tlast = starttime\n 530→\t} else {\n 531→\t\tlast, err = strconv.ParseInt(lastStr, 10, 64)\n 532→\t\tif err != nil {\n 533→\t\t\tcclog.Errorf(\"SqliteArchive CompressLast() > parse error: %v\", err)\n 534→\t\t\tlast = starttime\n 535→\t\t}\n 536→\t}\n 537→\n 538→\tcclog.Infof(\"SqliteArchive CompressLast() - start %d last %d\", starttime, last)\n 539→\n 540→\t// Update timestamp\n 541→\t_, err = sa.db.Exec(`\n 542→\t\tINSERT INTO metadata (key, value) VALUES ('compress_last', ?)\n 543→\t\tON CONFLICT(key) DO UPDATE SET value = excluded.value\n 544→\t`, fmt.Sprintf(\"%d\", starttime))\n 545→\tif err != nil {\n 546→\t\tcclog.Errorf(\"SqliteArchive CompressLast() > update error: %v\", err)\n 547→\t}\n 548→\n 549→\treturn last\n 550→}\n 551→\n 552→type sqliteJobRow struct {\n 553→\tmetaBlob []byte\n 554→\tdataBlob []byte\n 555→\tcompressed bool\n 556→}\n 557→\n 558→func (sa *SqliteArchive) Iter(loadMetricData bool) <-chan JobContainer {\n 559→\tch := make(chan JobContainer)\n 560→\n 561→\tgo func() {\n 562→\t\tdefer close(ch)\n 563→\n 564→\t\tconst chunkSize = 1000\n 565→\t\toffset := 0\n 566→\n 567→\t\tvar query string\n 568→\t\tif loadMetricData {\n 569→\t\t\tquery = \"SELECT meta_json, data_json, data_compressed FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n 570→\t\t} else {\n 571→\t\t\tquery = \"SELECT meta_json FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n 572→\t\t}\n 573→\n 574→\t\tnumWorkers := 4\n 575→\t\tjobRows := make(chan sqliteJobRow, numWorkers*2)\n 576→\t\tvar wg sync.WaitGroup\n 577→\n 578→\t\tfor range numWorkers {\n 579→\t\t\twg.Go(func() {\n 580→\t\t\t\tfor row := range jobRows {\n 581→\t\t\t\t\tjob, err := DecodeJobMeta(bytes.NewReader(row.metaBlob))\n 582→\t\t\t\t\tif err != nil {\n 583→\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode meta error: %v\", err)\n 584→\t\t\t\t\t\tcontinue\n 585→\t\t\t\t\t}\n 586→\n 587→\t\t\t\t\tif loadMetricData && row.dataBlob != nil {\n 588→\t\t\t\t\t\tvar reader io.Reader = bytes.NewReader(row.dataBlob)\n 589→\t\t\t\t\t\tif row.compressed {\n 590→\t\t\t\t\t\t\tgzipReader, err := gzip.NewReader(reader)\n 591→\t\t\t\t\t\t\tif err != nil {\n 592→\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > gzip error: %v\", err)\n 593→\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n 594→\t\t\t\t\t\t\t\tcontinue\n 595→\t\t\t\t\t\t\t}\n 596→\t\t\t\t\t\t\tdecompressed, err := io.ReadAll(gzipReader)\n 597→\t\t\t\t\t\t\tgzipReader.Close()\n 598→\t\t\t\t\t\t\tif err != nil {\n 599→\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decompress error: %v\", err)\n 600→\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n 601→\t\t\t\t\t\t\t\tcontinue\n 602→\t\t\t\t\t\t\t}\n 603→\t\t\t\t\t\t\treader = bytes.NewReader(decompressed)\n 604→\t\t\t\t\t\t}\n 605→\n 606→\t\t\t\t\t\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n 607→\t\t\t\t\t\tjobData, err := DecodeJobData(reader, key)\n 608→\t\t\t\t\t\tif err != nil {\n 609→\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode data error: %v\", err)\n 610→\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n 611→\t\t\t\t\t\t} else {\n 612→\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: &jobData}\n 613→\t\t\t\t\t\t}\n 614→\t\t\t\t\t} else {\n 615→\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n 616→\t\t\t\t\t}\n 617→\t\t\t\t}\n 618→\t\t\t})\n 619→\t\t}\n 620→\n 621→\t\tfor {\n 622→\t\t\trows, err := sa.db.Query(query, chunkSize, offset)\n 623→\t\t\tif err != nil {\n 624→\t\t\t\tcclog.Fatalf(\"SqliteArchive Iter() > query error: %s\", err.Error())\n 625→\t\t\t}\n 626→\n 627→\t\t\trowCount := 0\n 628→\t\t\tfor rows.Next() {\n 629→\t\t\t\tvar row sqliteJobRow\n 630→\n 631→\t\t\t\tif loadMetricData {\n 632→\t\t\t\t\tif err := rows.Scan(&row.metaBlob, &row.dataBlob, &row.compressed); err != nil {\n 633→\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n 634→\t\t\t\t\t\tcontinue\n 635→\t\t\t\t\t}\n 636→\t\t\t\t} else {\n 637→\t\t\t\t\tif err := rows.Scan(&row.metaBlob); err != nil {\n 638→\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n 639→\t\t\t\t\t\tcontinue\n 640→\t\t\t\t\t}\n 641→\t\t\t\t\trow.dataBlob = nil\n 642→\t\t\t\t\trow.compressed = false\n 643→\t\t\t\t}\n 644→\n 645→\t\t\t\tjobRows <- row\n 646→\t\t\t\trowCount++\n 647→\t\t\t}\n 648→\t\t\trows.Close()\n 649→\n 650→\t\t\tif rowCount < chunkSize {\n 651→\t\t\t\tbreak\n 652→\t\t\t}\n 653→\n 654→\t\t\toffset += chunkSize\n 655→\t\t}\n 656→\n 657→\t\tclose(jobRows)\n 658→\t\twg.Wait()\n 659→\t}()\n 660→\n 661→\treturn ch\n 662→}\n 663→\n 664→func (sa *SqliteArchive) StoreClusterCfg(name string, config *schema.Cluster) error {\n 665→\tvar configBuf bytes.Buffer\n 666→\tif err := EncodeCluster(&configBuf, config); err != nil {\n 667→\t\tcclog.Error(\"SqliteArchive StoreClusterCfg() > encoding error\")\n 668→\t\treturn err\n 669→\t}\n 670→\n 671→\tnow := time.Now().Unix()\n 672→\t_, err := sa.db.Exec(`\n 673→\t\tINSERT INTO clusters (name, config_json, updated_at)\n 674→\t\tVALUES (?, ?, ?)\n 675→\t\tON CONFLICT(name) DO UPDATE SET\n 676→\t\t\tconfig_json = excluded.config_json,\n 677→\t\t\tupdated_at = excluded.updated_at\n 678→\t`, name, configBuf.Bytes(), now)\n 679→\tif err != nil {\n 680→\t\tcclog.Errorf(\"SqliteArchive StoreClusterCfg() > insert error: %v\", err)\n 681→\t\treturn err\n 682→\t}\n 683→\n 684→\t// Update clusters list if new\n 685→\tfound := slices.Contains(sa.clusters, name)\n 686→\tif !found {\n 687→\t\tsa.clusters = append(sa.clusters, name)\n 688→\t}\n 689→\n 690→\treturn nil\n 691→}\n 692→"}]},"uuid":"d78c0aa3-68bb-42dc-8267-533056b05e92","timestamp":"2026-03-16T10:12:40.468Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/pkg/archive/sqliteBackend.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage archive\n\nimport (\n\t\"bytes\"\n\t\"compress/gzip\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"io\"\n\t\"math\"\n\t\"os\"\n\t\"slices\"\n\t\"strconv\"\n\t\"sync\"\n\t\"text/tabwriter\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n\t_ \"github.com/mattn/go-sqlite3\"\n)\n\n// SqliteArchiveConfig holds the configuration for the SQLite archive backend.\ntype SqliteArchiveConfig struct {\n\tDBPath string `json:\"db-path\"` // Path to SQLite database file\n}\n\n// SqliteArchive implements ArchiveBackend using a SQLite database with BLOB storage.\n// Job metadata and data are stored as JSON BLOBs with indexes for fast queries.\n//\n// Uses WAL (Write-Ahead Logging) mode for better concurrency and a 64MB cache.\ntype SqliteArchive struct {\n\tdb *sql.DB // SQLite database connection\n\tclusters []string // List of discovered cluster names\n}\n\n// sqliteSchema defines the database schema for SQLite archive backend.\n// Jobs table: stores job metadata and data as BLOBs with compression flag\n// Clusters table: stores cluster configurations\n// Metadata table: stores version and other key-value pairs\nconst sqliteSchema = `\nCREATE TABLE IF NOT EXISTS jobs (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n job_id INTEGER NOT NULL,\n cluster TEXT NOT NULL,\n start_time INTEGER NOT NULL,\n meta_json BLOB NOT NULL,\n data_json BLOB,\n data_compressed BOOLEAN DEFAULT 0,\n created_at INTEGER NOT NULL,\n updated_at INTEGER NOT NULL,\n UNIQUE(job_id, cluster, start_time)\n);\n\nCREATE INDEX IF NOT EXISTS idx_jobs_cluster ON jobs(cluster);\nCREATE INDEX IF NOT EXISTS idx_jobs_start_time ON jobs(start_time);\nCREATE INDEX IF NOT EXISTS idx_jobs_order ON jobs(cluster, start_time);\nCREATE INDEX IF NOT EXISTS idx_jobs_lookup ON jobs(cluster, job_id, start_time);\n\nCREATE TABLE IF NOT EXISTS clusters (\n name TEXT PRIMARY KEY,\n config_json BLOB NOT NULL,\n updated_at INTEGER NOT NULL\n);\n\nCREATE TABLE IF NOT EXISTS metadata (\n key TEXT PRIMARY KEY,\n value TEXT NOT NULL\n);\n`\n\nfunc (sa *SqliteArchive) Init(rawConfig json.RawMessage) (uint64, error) {\n\tvar cfg SqliteArchiveConfig\n\tif err := json.Unmarshal(rawConfig, &cfg); err != nil {\n\t\tcclog.Warnf(\"SqliteArchive Init() > Unmarshal error: %#v\", err)\n\t\treturn 0, err\n\t}\n\n\tif cfg.DBPath == \"\" {\n\t\terr := fmt.Errorf(\"SqliteArchive Init(): empty database path\")\n\t\tcclog.Errorf(\"SqliteArchive Init() > config error: %v\", err)\n\t\treturn 0, err\n\t}\n\n\t// Open SQLite database\n\tdb, err := sql.Open(\"sqlite3\", cfg.DBPath)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to open database: %v\", err)\n\t\treturn 0, err\n\t}\n\tsa.db = db\n\n\t// Set pragmas for better performance\n\tpragmas := []string{\n\t\t\"PRAGMA journal_mode=WAL\",\n\t\t\"PRAGMA synchronous=NORMAL\",\n\t\t\"PRAGMA cache_size=-64000\", // 64MB cache\n\t\t\"PRAGMA busy_timeout=5000\",\n\t}\n\tfor _, pragma := range pragmas {\n\t\tif _, err := sa.db.Exec(pragma); err != nil {\n\t\t\tcclog.Warnf(\"SqliteArchive Init() > pragma failed: %v\", err)\n\t\t}\n\t}\n\n\t// Create schema\n\tif _, err := sa.db.Exec(sqliteSchema); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > schema creation failed: %v\", err)\n\t\treturn 0, err\n\t}\n\n\t// Check/set version\n\tvar versionStr string\n\terr = sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'version'\").Scan(&versionStr)\n\tif err == sql.ErrNoRows {\n\t\t// First time initialization, set version\n\t\t_, err = sa.db.Exec(\"INSERT INTO metadata (key, value) VALUES ('version', ?)\", fmt.Sprintf(\"%d\", Version))\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to set version: %v\", err)\n\t\t\treturn 0, err\n\t\t}\n\t\tversionStr = fmt.Sprintf(\"%d\", Version)\n\t} else if err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to read version: %v\", err)\n\t\treturn 0, err\n\t}\n\n\tversion, err := strconv.ParseUint(versionStr, 10, 64)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > version parse error: %v\", err)\n\t\treturn 0, err\n\t}\n\n\tif version != Version {\n\t\treturn version, fmt.Errorf(\"unsupported version %d, need %d\", version, Version)\n\t}\n\n\t// Discover clusters\n\tsa.clusters = []string{}\n\trows, err := sa.db.Query(\"SELECT DISTINCT cluster FROM jobs ORDER BY cluster\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to query clusters: %v\", err)\n\t\treturn 0, err\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar cluster string\n\t\tif err := rows.Scan(&cluster); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to scan cluster: %v\", err)\n\t\t\tcontinue\n\t\t}\n\t\tsa.clusters = append(sa.clusters, cluster)\n\t}\n\n\tcclog.Infof(\"SqliteArchive initialized with database '%s', found %d clusters\", cfg.DBPath, len(sa.clusters))\n\treturn version, nil\n}\n\nfunc (sa *SqliteArchive) Info() {\n\tfmt.Printf(\"SQLite Job archive database\\n\")\n\n\tci := make(map[string]*clusterInfo)\n\n\trows, err := sa.db.Query(`\n\t\tSELECT cluster, COUNT(*), MIN(start_time), MAX(start_time),\n\t\t SUM(LENGTH(meta_json) + COALESCE(LENGTH(data_json), 0))\n\t\tFROM jobs\n\t\tGROUP BY cluster\n\t`)\n\tif err != nil {\n\t\tcclog.Fatalf(\"SqliteArchive Info() > query failed: %s\", err.Error())\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar cluster string\n\t\tvar numJobs int\n\t\tvar dateFirst, dateLast int64\n\t\tvar diskSize int64\n\n\t\tif err := rows.Scan(&cluster, &numJobs, &dateFirst, &dateLast, &diskSize); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Info() > scan failed: %v\", err)\n\t\t\tcontinue\n\t\t}\n\n\t\tci[cluster] = &clusterInfo{\n\t\t\tnumJobs: numJobs,\n\t\t\tdateFirst: dateFirst,\n\t\t\tdateLast: dateLast,\n\t\t\tdiskSize: float64(diskSize) / (1024 * 1024), // Convert to MB\n\t\t}\n\t}\n\n\tcit := clusterInfo{dateFirst: time.Now().Unix()}\n\tw := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', tabwriter.Debug)\n\tfmt.Fprintln(w, \"cluster\\t#jobs\\tfrom\\tto\\tsize (MB)\")\n\tfor cluster, clusterInfo := range ci {\n\t\tfmt.Fprintf(w, \"%s\\t%d\\t%s\\t%s\\t%.2f\\n\", cluster,\n\t\t\tclusterInfo.numJobs,\n\t\t\ttime.Unix(clusterInfo.dateFirst, 0),\n\t\t\ttime.Unix(clusterInfo.dateLast, 0),\n\t\t\tclusterInfo.diskSize)\n\n\t\tcit.numJobs += clusterInfo.numJobs\n\t\tcit.dateFirst = util.Min(cit.dateFirst, clusterInfo.dateFirst)\n\t\tcit.dateLast = util.Max(cit.dateLast, clusterInfo.dateLast)\n\t\tcit.diskSize += clusterInfo.diskSize\n\t}\n\n\tfmt.Fprintf(w, \"TOTAL\\t%d\\t%s\\t%s\\t%.2f\\n\",\n\t\tcit.numJobs, time.Unix(cit.dateFirst, 0), time.Unix(cit.dateLast, 0), cit.diskSize)\n\tw.Flush()\n}\n\nfunc (sa *SqliteArchive) Exists(job *schema.Job) bool {\n\tvar count int\n\terr := sa.db.QueryRow(\"SELECT COUNT(*) FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&count)\n\treturn err == nil && count > 0\n}\n\nfunc (sa *SqliteArchive) LoadJobMeta(job *schema.Job) (*schema.Job, error) {\n\tvar metaBlob []byte\n\terr := sa.db.QueryRow(\"SELECT meta_json FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&metaBlob)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobMeta() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif config.Keys.Validate {\n\t\tif err := schema.Validate(schema.Meta, bytes.NewReader(metaBlob)); err != nil {\n\t\t\treturn nil, fmt.Errorf(\"validate job meta: %v\", err)\n\t\t}\n\t}\n\n\treturn DecodeJobMeta(bytes.NewReader(metaBlob))\n}\n\nfunc (sa *SqliteArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {\n\tvar dataBlob []byte\n\tvar compressed bool\n\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\n\tvar reader io.Reader = bytes.NewReader(dataBlob)\n\tif compressed {\n\t\tgzipReader, err := gzip.NewReader(reader)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > gzip error: %v\", err)\n\t\t\treturn nil, err\n\t\t}\n\t\tdefer gzipReader.Close()\n\t\treader = gzipReader\n\t}\n\n\tif config.Keys.Validate {\n\t\tdata, _ := io.ReadAll(reader)\n\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n\t\t\treturn schema.JobData{}, fmt.Errorf(\"validate job data: %v\", err)\n\t\t}\n\t\treturn DecodeJobData(bytes.NewReader(data), key)\n\t}\n\n\treturn DecodeJobData(reader, key)\n}\n\nfunc (sa *SqliteArchive) LoadJobStats(job *schema.Job) (schema.ScopedJobStats, error) {\n\tvar dataBlob []byte\n\tvar compressed bool\n\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\n\tvar reader io.Reader = bytes.NewReader(dataBlob)\n\tif compressed {\n\t\tgzipReader, err := gzip.NewReader(reader)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > gzip error: %v\", err)\n\t\t\treturn nil, err\n\t\t}\n\t\tdefer gzipReader.Close()\n\t\treader = gzipReader\n\t}\n\n\tif config.Keys.Validate {\n\t\tdata, _ := io.ReadAll(reader)\n\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n\t\t\treturn nil, fmt.Errorf(\"validate job data: %v\", err)\n\t\t}\n\t\treturn DecodeJobStats(bytes.NewReader(data), key)\n\t}\n\n\treturn DecodeJobStats(reader, key)\n}\n\nfunc (sa *SqliteArchive) LoadClusterCfg(name string) (*schema.Cluster, error) {\n\tvar configBlob []byte\n\terr := sa.db.QueryRow(\"SELECT config_json FROM clusters WHERE name = ?\", name).Scan(&configBlob)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadClusterCfg() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif config.Keys.Validate {\n\t\tif err := schema.Validate(schema.ClusterCfg, bytes.NewReader(configBlob)); err != nil {\n\t\t\tcclog.Warnf(\"Validate cluster config: %v\\n\", err)\n\t\t\treturn &schema.Cluster{}, fmt.Errorf(\"validate cluster config: %v\", err)\n\t\t}\n\t}\n\n\treturn DecodeCluster(bytes.NewReader(configBlob))\n}\n\nfunc (sa *SqliteArchive) StoreJobMeta(job *schema.Job) error {\n\tvar metaBuf bytes.Buffer\n\tif err := EncodeJobMeta(&metaBuf, job); err != nil {\n\t\tcclog.Error(\"SqliteArchive StoreJobMeta() > encoding error\")\n\t\treturn err\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, created_at, updated_at)\n\t\tVALUES (?, ?, ?, ?, ?, ?)\n\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n\t\t\tmeta_json = excluded.meta_json,\n\t\t\tupdated_at = excluded.updated_at\n\t`, job.JobID, job.Cluster, job.StartTime, metaBuf.Bytes(), now, now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive StoreJobMeta() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (sa *SqliteArchive) ImportJob(jobMeta *schema.Job, jobData *schema.JobData) error {\n\tvar metaBuf, dataBuf bytes.Buffer\n\tif err := EncodeJobMeta(&metaBuf, jobMeta); err != nil {\n\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding meta error\")\n\t\treturn err\n\t}\n\tif err := EncodeJobData(&dataBuf, jobData); err != nil {\n\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding data error\")\n\t\treturn err\n\t}\n\n\tvar dataBytes []byte\n\tvar compressed bool\n\n\tif dataBuf.Len() > 2000 {\n\t\tvar compressedBuf bytes.Buffer\n\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n\t\tif _, err := gzipWriter.Write(dataBuf.Bytes()); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip write error: %v\", err)\n\t\t\treturn err\n\t\t}\n\t\tif err := gzipWriter.Close(); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip close error: %v\", err)\n\t\t\treturn err\n\t\t}\n\t\tdataBytes = compressedBuf.Bytes()\n\t\tcompressed = true\n\t} else {\n\t\tdataBytes = dataBuf.Bytes()\n\t\tcompressed = false\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, data_json, data_compressed, created_at, updated_at)\n\t\tVALUES (?, ?, ?, ?, ?, ?, ?, ?)\n\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n\t\t\tmeta_json = excluded.meta_json,\n\t\t\tdata_json = excluded.data_json,\n\t\t\tdata_compressed = excluded.data_compressed,\n\t\t\tupdated_at = excluded.updated_at\n\t`, jobMeta.JobID, jobMeta.Cluster, jobMeta.StartTime, metaBuf.Bytes(), dataBytes, compressed, now, now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive ImportJob() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (sa *SqliteArchive) GetClusters() []string {\n\treturn sa.clusters\n}\n\nfunc (sa *SqliteArchive) CleanUp(jobs []*schema.Job) {\n\tstart := time.Now()\n\tcount := 0\n\n\ttx, err := sa.db.Begin()\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > transaction error: %v\", err)\n\t\treturn\n\t}\n\tdefer tx.Rollback()\n\n\tstmt, err := tx.Prepare(\"DELETE FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > prepare error: %v\", err)\n\t\treturn\n\t}\n\tdefer stmt.Close()\n\n\tfor _, job := range jobs {\n\t\tif job == nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() error: job is nil\")\n\t\t\tcontinue\n\t\t}\n\n\t\tif _, err := stmt.Exec(job.JobID, job.Cluster, job.StartTime); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() > delete error: %v\", err)\n\t\t} else {\n\t\t\tcount++\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > commit error: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"Retention Service - Remove %d jobs from SQLite in %s\", count, time.Since(start))\n}\n\nfunc (sa *SqliteArchive) Move(jobs []*schema.Job, targetPath string) {\n\t// For SQLite, \"move\" means updating the cluster field or similar\n\t// This is interpretation-dependent; for now we'll just log\n\tcclog.Warnf(\"SqliteArchive Move() is not fully implemented - moves within database not applicable\")\n}\n\nfunc (sa *SqliteArchive) Clean(before int64, after int64) {\n\tif after == 0 {\n\t\tafter = math.MaxInt64\n\t}\n\n\tresult, err := sa.db.Exec(\"DELETE FROM jobs WHERE start_time < ? OR start_time > ?\", before, after)\n\tif err != nil {\n\t\tcclog.Fatalf(\"SqliteArchive Clean() > delete error: %s\", err.Error())\n\t}\n\n\trowsAffected, _ := result.RowsAffected()\n\tcclog.Infof(\"SqliteArchive Clean() removed %d jobs\", rowsAffected)\n}\n\nfunc (sa *SqliteArchive) Compress(jobs []*schema.Job) {\n\tvar cnt int\n\tstart := time.Now()\n\n\ttx, err := sa.db.Begin()\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > transaction error: %v\", err)\n\t\treturn\n\t}\n\tdefer tx.Rollback()\n\n\tstmt, err := tx.Prepare(\"UPDATE jobs SET data_json = ?, data_compressed = 1 WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > prepare error: %v\", err)\n\t\treturn\n\t}\n\tdefer stmt.Close()\n\n\tfor _, job := range jobs {\n\t\tvar dataBlob []byte\n\t\tvar compressed bool\n\t\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\t\tif err != nil || compressed || len(dataBlob) < 2000 {\n\t\t\tcontinue // Skip if error, already compressed, or too small\n\t\t}\n\n\t\t// Compress the data\n\t\tvar compressedBuf bytes.Buffer\n\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n\t\tif _, err := gzipWriter.Write(dataBlob); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Compress() > gzip error: %v\", err)\n\t\t\tgzipWriter.Close()\n\t\t\tcontinue\n\t\t}\n\t\tgzipWriter.Close()\n\n\t\tif _, err := stmt.Exec(compressedBuf.Bytes(), job.JobID, job.Cluster, job.StartTime); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Compress() > update error: %v\", err)\n\t\t} else {\n\t\t\tcnt++\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > commit error: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"Compression Service - %d jobs in SQLite took %s\", cnt, time.Since(start))\n}\n\nfunc (sa *SqliteArchive) CompressLast(starttime int64) int64 {\n\tvar lastStr string\n\terr := sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'compress_last'\").Scan(&lastStr)\n\n\tvar last int64\n\tif err == sql.ErrNoRows {\n\t\tlast = starttime\n\t} else if err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CompressLast() > query error: %v\", err)\n\t\tlast = starttime\n\t} else {\n\t\tlast, err = strconv.ParseInt(lastStr, 10, 64)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CompressLast() > parse error: %v\", err)\n\t\t\tlast = starttime\n\t\t}\n\t}\n\n\tcclog.Infof(\"SqliteArchive CompressLast() - start %d last %d\", starttime, last)\n\n\t// Update timestamp\n\t_, err = sa.db.Exec(`\n\t\tINSERT INTO metadata (key, value) VALUES ('compress_last', ?)\n\t\tON CONFLICT(key) DO UPDATE SET value = excluded.value\n\t`, fmt.Sprintf(\"%d\", starttime))\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CompressLast() > update error: %v\", err)\n\t}\n\n\treturn last\n}\n\ntype sqliteJobRow struct {\n\tmetaBlob []byte\n\tdataBlob []byte\n\tcompressed bool\n}\n\nfunc (sa *SqliteArchive) Iter(loadMetricData bool) <-chan JobContainer {\n\tch := make(chan JobContainer)\n\n\tgo func() {\n\t\tdefer close(ch)\n\n\t\tconst chunkSize = 1000\n\t\toffset := 0\n\n\t\tvar query string\n\t\tif loadMetricData {\n\t\t\tquery = \"SELECT meta_json, data_json, data_compressed FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n\t\t} else {\n\t\t\tquery = \"SELECT meta_json FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n\t\t}\n\n\t\tnumWorkers := 4\n\t\tjobRows := make(chan sqliteJobRow, numWorkers*2)\n\t\tvar wg sync.WaitGroup\n\n\t\tfor range numWorkers {\n\t\t\twg.Go(func() {\n\t\t\t\tfor row := range jobRows {\n\t\t\t\t\tjob, err := DecodeJobMeta(bytes.NewReader(row.metaBlob))\n\t\t\t\t\tif err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode meta error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\n\t\t\t\t\tif loadMetricData && row.dataBlob != nil {\n\t\t\t\t\t\tvar reader io.Reader = bytes.NewReader(row.dataBlob)\n\t\t\t\t\t\tif row.compressed {\n\t\t\t\t\t\t\tgzipReader, err := gzip.NewReader(reader)\n\t\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > gzip error: %v\", err)\n\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t\t\tcontinue\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tdecompressed, err := io.ReadAll(gzipReader)\n\t\t\t\t\t\t\tgzipReader.Close()\n\t\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decompress error: %v\", err)\n\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t\t\tcontinue\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\treader = bytes.NewReader(decompressed)\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\t\t\t\t\t\tjobData, err := DecodeJobData(reader, key)\n\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode data error: %v\", err)\n\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: &jobData}\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t})\n\t\t}\n\n\t\tfor {\n\t\t\trows, err := sa.db.Query(query, chunkSize, offset)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Fatalf(\"SqliteArchive Iter() > query error: %s\", err.Error())\n\t\t\t}\n\n\t\t\trowCount := 0\n\t\t\tfor rows.Next() {\n\t\t\t\tvar row sqliteJobRow\n\n\t\t\t\tif loadMetricData {\n\t\t\t\t\tif err := rows.Scan(&row.metaBlob, &row.dataBlob, &row.compressed); err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tif err := rows.Scan(&row.metaBlob); err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\t\t\t\t\trow.dataBlob = nil\n\t\t\t\t\trow.compressed = false\n\t\t\t\t}\n\n\t\t\t\tjobRows <- row\n\t\t\t\trowCount++\n\t\t\t}\n\t\t\trows.Close()\n\n\t\t\tif rowCount < chunkSize {\n\t\t\t\tbreak\n\t\t\t}\n\n\t\t\toffset += chunkSize\n\t\t}\n\n\t\tclose(jobRows)\n\t\twg.Wait()\n\t}()\n\n\treturn ch\n}\n\nfunc (sa *SqliteArchive) StoreClusterCfg(name string, config *schema.Cluster) error {\n\tvar configBuf bytes.Buffer\n\tif err := EncodeCluster(&configBuf, config); err != nil {\n\t\tcclog.Error(\"SqliteArchive StoreClusterCfg() > encoding error\")\n\t\treturn err\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO clusters (name, config_json, updated_at)\n\t\tVALUES (?, ?, ?)\n\t\tON CONFLICT(name) DO UPDATE SET\n\t\t\tconfig_json = excluded.config_json,\n\t\t\tupdated_at = excluded.updated_at\n\t`, name, configBuf.Bytes(), now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive StoreClusterCfg() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\t// Update clusters list if new\n\tfound := slices.Contains(sa.clusters, name)\n\tif !found {\n\t\tsa.clusters = append(sa.clusters, name)\n\t}\n\n\treturn nil\n}\n","numLines":692,"startLine":1,"totalLines":692}},"sourceToolAssistantUUID":"641c9a76-91d8-4156-a19d-7ccb6d93cf69","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d78c0aa3-68bb-42dc-8267-533056b05e92","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RUChJr4277fRqYrmyucysh","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/node.go"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"d8f1148f-83ce-49d1-8a7f-4e6531306bf4","timestamp":"2026-03-16T10:12:40.900Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d8f1148f-83ce-49d1-8a7f-4e6531306bf4","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01RUChJr4277fRqYrmyucysh","toolUseID":"toolu_01RUChJr4277fRqYrmyucysh","timestamp":"2026-03-16T10:12:41.123Z","uuid":"bd8768f9-8c15-4589-8610-5850b4638227","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d8f1148f-83ce-49d1-8a7f-4e6531306bf4","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RUChJr4277fRqYrmyucysh","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package repository\n 7→\n 8→import (\n 9→\t\"context\"\n 10→\t\"database/sql\"\n 11→\t\"encoding/json\"\n 12→\t\"fmt\"\n 13→\t\"slices\"\n 14→\t\"sort\"\n 15→\t\"strings\"\n 16→\t\"sync\"\n 17→\t\"time\"\n 18→\n 19→\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n 20→\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n 21→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 22→\t\"github.com/ClusterCockpit/cc-lib/v2/lrucache\"\n 23→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 24→\tsq \"github.com/Masterminds/squirrel\"\n 25→\t\"github.com/jmoiron/sqlx\"\n 26→)\n 27→\n 28→var (\n 29→\tnodeRepoOnce sync.Once\n 30→\tnodeRepoInstance *NodeRepository\n 31→)\n 32→\n 33→type NodeRepository struct {\n 34→\tDB *sqlx.DB\n 35→\tstmtCache *sq.StmtCache\n 36→\tcache *lrucache.Cache\n 37→\tdriver string\n 38→}\n 39→\n 40→func GetNodeRepository() *NodeRepository {\n 41→\tnodeRepoOnce.Do(func() {\n 42→\t\tdb := GetConnection()\n 43→\n 44→\t\tnodeRepoInstance = &NodeRepository{\n 45→\t\t\tDB: db.DB,\n 46→\t\t\tdriver: db.Driver,\n 47→\n 48→\t\t\tstmtCache: sq.NewStmtCache(db.DB),\n 49→\t\t\tcache: lrucache.New(repoConfig.CacheSize),\n 50→\t\t}\n 51→\t})\n 52→\treturn nodeRepoInstance\n 53→}\n 54→\n 55→// latestStateCondition returns a squirrel expression that restricts node_state\n 56→// rows to the latest per node_id using a correlated subquery.\n 57→// Requires the query to join node and node_state tables.\n 58→func latestStateCondition() sq.Sqlizer {\n 59→\treturn sq.Expr(\n 60→\t\t\"node_state.id = (SELECT ns2.id FROM node_state ns2 WHERE ns2.node_id = node.id ORDER BY ns2.time_stamp DESC LIMIT 1)\",\n 61→\t)\n 62→}\n 63→\n 64→// applyNodeFilters applies common NodeFilter conditions to a query that joins\n 65→// the node and node_state tables with latestStateCondition.\n 66→func applyNodeFilters(query sq.SelectBuilder, filters []*model.NodeFilter) sq.SelectBuilder {\n 67→\tfor _, f := range filters {\n 68→\t\tif f.Cluster != nil {\n 69→\t\t\tquery = buildStringCondition(\"node.cluster\", f.Cluster, query)\n 70→\t\t}\n 71→\t\tif f.SubCluster != nil {\n 72→\t\t\tquery = buildStringCondition(\"node.subcluster\", f.SubCluster, query)\n 73→\t\t}\n 74→\t\tif f.Hostname != nil {\n 75→\t\t\tquery = buildStringCondition(\"node.hostname\", f.Hostname, query)\n 76→\t\t}\n 77→\t\tif f.SchedulerState != nil {\n 78→\t\t\tquery = query.Where(\"node_state.node_state = ?\", f.SchedulerState)\n 79→\t\t}\n 80→\t\tif f.HealthState != nil {\n 81→\t\t\tquery = query.Where(\"node_state.health_state = ?\", f.HealthState)\n 82→\t\t}\n 83→\t}\n 84→\treturn query\n 85→}\n 86→\n 87→func (r *NodeRepository) FetchMetadata(hostname string, cluster string) (map[string]string, error) {\n 88→\tstart := time.Now()\n 89→\n 90→\tRawMetaData := make([]byte, 0)\n 91→\n 92→\tif err := sq.Select(\"node.meta_data\").From(\"node\").\n 93→\t\tWhere(\"node.hostname = ?\", hostname).\n 94→\t\tWhere(\"node.cluster = ?\", cluster).\n 95→\t\tRunWith(r.stmtCache).QueryRow().Scan(&RawMetaData); err != nil {\n 96→\t\tcclog.Warn(\"Error while scanning for node metadata\")\n 97→\t\treturn nil, err\n 98→\t}\n 99→\n 100→\tif len(RawMetaData) == 0 {\n 101→\t\treturn nil, nil\n 102→\t}\n 103→\n 104→\tMetaData := make(map[string]string)\n 105→\n 106→\tif err := json.Unmarshal(RawMetaData, &MetaData); err != nil {\n 107→\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n 108→\t\treturn nil, err\n 109→\t}\n 110→\n 111→\tcclog.Debugf(\"Timer FetchMetadata %s\", time.Since(start))\n 112→\treturn MetaData, nil\n 113→}\n 114→\n 115→func (r *NodeRepository) GetNode(hostname string, cluster string, withMeta bool) (*schema.Node, error) {\n 116→\tnode := &schema.Node{}\n 117→\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 118→\t\t\"node_state.node_state\", \"node_state.health_state\").\n 119→\t\tFrom(\"node\").\n 120→\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 121→\t\tWhere(latestStateCondition()).\n 122→\t\tWhere(\"node.hostname = ?\", hostname).\n 123→\t\tWhere(\"node.cluster = ?\", cluster).\n 124→\t\tRunWith(r.DB).\n 125→\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n 126→\t\tcclog.Warnf(\"Error while querying node '%s' from database: %v\", hostname, err)\n 127→\t\treturn nil, err\n 128→\t}\n 129→\n 130→\tif withMeta {\n 131→\t\tvar err error\n 132→\t\tvar meta map[string]string\n 133→\t\tif meta, err = r.FetchMetadata(hostname, cluster); err != nil {\n 134→\t\t\tcclog.Warnf(\"Error while fetching metadata for node '%s'\", hostname)\n 135→\t\t\treturn nil, err\n 136→\t\t}\n 137→\t\tnode.MetaData = meta\n 138→\t}\n 139→\n 140→\treturn node, nil\n 141→}\n 142→\n 143→func (r *NodeRepository) GetNodeByID(id int64, withMeta bool) (*schema.Node, error) {\n 144→\tnode := &schema.Node{}\n 145→\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 146→\t\t\"node_state.node_state\", \"node_state.health_state\").\n 147→\t\tFrom(\"node\").\n 148→\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 149→\t\tWhere(latestStateCondition()).\n 150→\t\tWhere(\"node.id = ?\", id).\n 151→\t\tRunWith(r.DB).\n 152→\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n 153→\t\tcclog.Warnf(\"Error while querying node ID '%d' from database: %v\", id, err)\n 154→\t\treturn nil, err\n 155→\t}\n 156→\n 157→\tif withMeta {\n 158→\t\tmeta, metaErr := r.FetchMetadata(node.Hostname, node.Cluster)\n 159→\t\tif metaErr != nil {\n 160→\t\t\tcclog.Warnf(\"Error while fetching metadata for node ID '%d': %v\", id, metaErr)\n 161→\t\t\treturn nil, metaErr\n 162→\t\t}\n 163→\t\tnode.MetaData = meta\n 164→\t}\n 165→\n 166→\treturn node, nil\n 167→}\n 168→\n 169→// const NamedNodeInsert string = `\n 170→// INSERT INTO node (time_stamp, hostname, cluster, subcluster, node_state, health_state,\n 171→//\n 172→//\tcpus_allocated, cpus_total, memory_allocated, memory_total, gpus_allocated, gpus_total)\n 173→//\tVALUES (:time_stamp, :hostname, :cluster, :subcluster, :node_state, :health_state,\n 174→//\t:cpus_allocated, :cpus_total, :memory_allocated, :memory_total, :gpus_allocated, :gpus_total);`\n 175→\n 176→const NamedNodeInsert string = `\n 177→INSERT INTO node (hostname, cluster, subcluster)\n 178→\tVALUES (:hostname, :cluster, :subcluster);`\n 179→\n 180→// AddNode adds a Node to the node table. This can be triggered by a node collector registration or\n 181→// from a nodestate update from the job scheduler.\n 182→func (r *NodeRepository) AddNode(node *schema.NodeDB) (int64, error) {\n 183→\tvar err error\n 184→\n 185→\tres, err := r.DB.NamedExec(NamedNodeInsert, node)\n 186→\tif err != nil {\n 187→\t\tcclog.Errorf(\"Error while adding node '%v' to database\", node.Hostname)\n 188→\t\treturn 0, err\n 189→\t}\n 190→\tnode.ID, err = res.LastInsertId()\n 191→\tif err != nil {\n 192→\t\tcclog.Errorf(\"Error while getting last insert id for node '%v' from database\", node.Hostname)\n 193→\t\treturn 0, err\n 194→\t}\n 195→\n 196→\treturn node.ID, nil\n 197→}\n 198→\n 199→const NamedNodeStateInsert string = `\n 200→INSERT INTO node_state (time_stamp, node_state, health_state, health_metrics,\n 201→\tcpus_allocated, memory_allocated, gpus_allocated, jobs_running, node_id)\n 202→\tVALUES (:time_stamp, :node_state, :health_state, :health_metrics,\n 203→\t:cpus_allocated, :memory_allocated, :gpus_allocated, :jobs_running, :node_id);`\n 204→\n 205→// TODO: Add real Monitoring Health State\n 206→\n 207→// UpdateNodeState is called from the Node REST API to add a row in the node state table\n 208→func (r *NodeRepository) UpdateNodeState(hostname string, cluster string, nodeState *schema.NodeStateDB) error {\n 209→\tvar id int64\n 210→\n 211→\tif err := sq.Select(\"id\").From(\"node\").\n 212→\t\tWhere(\"node.hostname = ?\", hostname).Where(\"node.cluster = ?\", cluster).RunWith(r.DB).\n 213→\t\tQueryRow().Scan(&id); err != nil {\n 214→\t\tif err == sql.ErrNoRows {\n 215→\t\t\tsubcluster, err := archive.GetSubClusterByNode(cluster, hostname)\n 216→\t\t\tif err != nil {\n 217→\t\t\t\tcclog.Errorf(\"Error while getting subcluster for node '%s' in cluster '%s': %v\", hostname, cluster, err)\n 218→\t\t\t\treturn err\n 219→\t\t\t}\n 220→\t\t\tnode := schema.NodeDB{\n 221→\t\t\t\tHostname: hostname, Cluster: cluster, SubCluster: subcluster,\n 222→\t\t\t}\n 223→\t\t\tid, err = r.AddNode(&node)\n 224→\t\t\tif err != nil {\n 225→\t\t\t\tcclog.Errorf(\"Error while adding node '%s' to database: %v\", hostname, err)\n 226→\t\t\t\treturn err\n 227→\t\t\t}\n 228→\n 229→\t\t\tcclog.Debugf(\"Added node '%s' to database\", hostname)\n 230→\t\t} else {\n 231→\t\t\tcclog.Warnf(\"Error while querying node '%v' from database\", id)\n 232→\t\t\treturn err\n 233→\t\t}\n 234→\t}\n 235→\n 236→\tnodeState.NodeID = id\n 237→\n 238→\t_, err := r.DB.NamedExec(NamedNodeStateInsert, nodeState)\n 239→\tif err != nil {\n 240→\t\tcclog.Errorf(\"Error while adding node state for '%v' to database\", hostname)\n 241→\t\treturn err\n 242→\t}\n 243→\tcclog.Debugf(\"Updated node state for '%s' in database\", hostname)\n 244→\treturn nil\n 245→}\n 246→\n 247→// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {\n 248→// \tif _, err := sq.Update(\"node\").Set(\"health_state\", healthState).Where(\"node.id = ?\", id).RunWith(r.DB).Exec(); err != nil {\n 249→// \t\tcclog.Errorf(\"error while updating node '%d'\", id)\n 250→// \t\treturn err\n 251→// \t}\n 252→//\n 253→// \treturn nil\n 254→// }\n 255→\n 256→// NodeStateWithNode combines a node state row with denormalized node info.\n 257→type NodeStateWithNode struct {\n 258→\tID int64 `db:\"id\"`\n 259→\tTimeStamp int64 `db:\"time_stamp\"`\n 260→\tNodeState string `db:\"node_state\"`\n 261→\tHealthState string `db:\"health_state\"`\n 262→\tHealthMetrics string `db:\"health_metrics\"`\n 263→\tCpusAllocated int `db:\"cpus_allocated\"`\n 264→\tMemoryAllocated int64 `db:\"memory_allocated\"`\n 265→\tGpusAllocated int `db:\"gpus_allocated\"`\n 266→\tJobsRunning int `db:\"jobs_running\"`\n 267→\tHostname string `db:\"hostname\"`\n 268→\tCluster string `db:\"cluster\"`\n 269→\tSubCluster string `db:\"subcluster\"`\n 270→}\n 271→\n 272→// FindNodeStatesBefore returns all node_state rows with time_stamp < cutoff,\n 273→// joined with node info for denormalized archiving.\n 274→func (r *NodeRepository) FindNodeStatesBefore(cutoff int64) ([]NodeStateWithNode, error) {\n 275→\trows, err := sq.Select(\n 276→\t\t\"node_state.id\", \"node_state.time_stamp\", \"node_state.node_state\",\n 277→\t\t\"node_state.health_state\", \"node_state.health_metrics\",\n 278→\t\t\"node_state.cpus_allocated\", \"node_state.memory_allocated\",\n 279→\t\t\"node_state.gpus_allocated\", \"node_state.jobs_running\",\n 280→\t\t\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 281→\t).\n 282→\t\tFrom(\"node_state\").\n 283→\t\tJoin(\"node ON node_state.node_id = node.id\").\n 284→\t\tWhere(sq.Lt{\"node_state.time_stamp\": cutoff}).\n 285→\t\tWhere(\"node_state.id NOT IN (SELECT ns2.id FROM node_state ns2 WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id))\").\n 286→\t\tOrderBy(\"node.cluster ASC\", \"node.subcluster ASC\", \"node.hostname ASC\", \"node_state.time_stamp ASC\").\n 287→\t\tRunWith(r.DB).Query()\n 288→\tif err != nil {\n 289→\t\treturn nil, err\n 290→\t}\n 291→\tdefer rows.Close()\n 292→\n 293→\tvar result []NodeStateWithNode\n 294→\tfor rows.Next() {\n 295→\t\tvar ns NodeStateWithNode\n 296→\t\tvar healthMetrics sql.NullString\n 297→\t\tif err := rows.Scan(&ns.ID, &ns.TimeStamp, &ns.NodeState,\n 298→\t\t\t&ns.HealthState, &healthMetrics,\n 299→\t\t\t&ns.CpusAllocated, &ns.MemoryAllocated,\n 300→\t\t\t&ns.GpusAllocated, &ns.JobsRunning,\n 301→\t\t\t&ns.Hostname, &ns.Cluster, &ns.SubCluster); err != nil {\n 302→\t\t\treturn nil, err\n 303→\t\t}\n 304→\t\tns.HealthMetrics = healthMetrics.String\n 305→\t\tresult = append(result, ns)\n 306→\t}\n 307→\treturn result, nil\n 308→}\n 309→\n 310→// DeleteNodeStatesBefore removes node_state rows with time_stamp < cutoff,\n 311→// but always preserves the row with the latest timestamp per node_id.\n 312→func (r *NodeRepository) DeleteNodeStatesBefore(cutoff int64) (int64, error) {\n 313→\tres, err := r.DB.Exec(\n 314→\t\t`DELETE FROM node_state WHERE time_stamp < ?\n 315→\t\t AND id NOT IN (\n 316→\t\t SELECT id FROM node_state ns2\n 317→\t\t WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id)\n 318→\t\t )`,\n 319→\t\tcutoff,\n 320→\t)\n 321→\tif err != nil {\n 322→\t\treturn 0, err\n 323→\t}\n 324→\treturn res.RowsAffected()\n 325→}\n 326→\n 327→func (r *NodeRepository) DeleteNode(id int64) error {\n 328→\t_, err := r.DB.Exec(`DELETE FROM node WHERE node.id = ?`, id)\n 329→\tif err != nil {\n 330→\t\tcclog.Errorf(\"Error while deleting node '%d' from DB\", id)\n 331→\t\treturn err\n 332→\t}\n 333→\tcclog.Infof(\"deleted node '%d' from DB\", id)\n 334→\treturn nil\n 335→}\n 336→\n 337→// QueryNodes returns a list of nodes based on a node filter. It always operates\n 338→// on the last state (largest timestamp).\n 339→func (r *NodeRepository) QueryNodes(\n 340→\tctx context.Context,\n 341→\tfilters []*model.NodeFilter,\n 342→\tpage *model.PageRequest,\n 343→\torder *model.OrderByInput, // Currently unused!\n 344→) ([]*schema.Node, error) {\n 345→\tquery, qerr := AccessCheck(ctx,\n 346→\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 347→\t\t\t\"node_state.node_state\", \"node_state.health_state\").\n 348→\t\t\tFrom(\"node\").\n 349→\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 350→\t\t\tWhere(latestStateCondition()))\n 351→\tif qerr != nil {\n 352→\t\treturn nil, qerr\n 353→\t}\n 354→\n 355→\tquery = applyNodeFilters(query, filters)\n 356→\tquery = query.OrderBy(\"node.hostname ASC\")\n 357→\n 358→\tif page != nil && page.ItemsPerPage != -1 {\n 359→\t\tlimit := uint64(page.ItemsPerPage)\n 360→\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n 361→\t}\n 362→\n 363→\trows, err := query.RunWith(r.stmtCache).Query()\n 364→\tif err != nil {\n 365→\t\tqueryString, queryVars, _ := query.ToSql()\n 366→\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n 367→\t\treturn nil, err\n 368→\t}\n 369→\tdefer rows.Close()\n 370→\n 371→\tnodes := make([]*schema.Node, 0)\n 372→\tfor rows.Next() {\n 373→\t\tnode := schema.Node{}\n 374→\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n 375→\t\t\t&node.NodeState, &node.HealthState); err != nil {\n 376→\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n 377→\t\t\treturn nil, err\n 378→\t\t}\n 379→\t\tnodes = append(nodes, &node)\n 380→\t}\n 381→\n 382→\tif err := rows.Err(); err != nil {\n 383→\t\treturn nil, err\n 384→\t}\n 385→\n 386→\treturn nodes, nil\n 387→}\n 388→\n 389→// QueryNodesWithMeta returns a list of nodes based on a node filter. It always operates\n 390→// on the last state (largest timestamp). It includes both (!) optional JSON column data\n 391→func (r *NodeRepository) QueryNodesWithMeta(\n 392→\tctx context.Context,\n 393→\tfilters []*model.NodeFilter,\n 394→\tpage *model.PageRequest,\n 395→\torder *model.OrderByInput, // Currently unused!\n 396→) ([]*schema.Node, error) {\n 397→\tquery, qerr := AccessCheck(ctx,\n 398→\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 399→\t\t\t\"node_state.node_state\", \"node_state.health_state\",\n 400→\t\t\t\"node.meta_data\", \"node_state.health_metrics\").\n 401→\t\t\tFrom(\"node\").\n 402→\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 403→\t\t\tWhere(latestStateCondition()))\n 404→\tif qerr != nil {\n 405→\t\treturn nil, qerr\n 406→\t}\n 407→\n 408→\tquery = applyNodeFilters(query, filters)\n 409→\tquery = query.OrderBy(\"node.hostname ASC\")\n 410→\n 411→\tif page != nil && page.ItemsPerPage != -1 {\n 412→\t\tlimit := uint64(page.ItemsPerPage)\n 413→\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n 414→\t}\n 415→\n 416→\trows, err := query.RunWith(r.stmtCache).Query()\n 417→\tif err != nil {\n 418→\t\tqueryString, queryVars, _ := query.ToSql()\n 419→\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n 420→\t\treturn nil, err\n 421→\t}\n 422→\tdefer rows.Close()\n 423→\n 424→\tnodes := make([]*schema.Node, 0)\n 425→\tfor rows.Next() {\n 426→\t\tnode := schema.Node{}\n 427→\t\tRawMetaData := make([]byte, 0)\n 428→\t\tRawMetricHealth := make([]byte, 0)\n 429→\n 430→\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n 431→\t\t\t&node.NodeState, &node.HealthState, &RawMetaData, &RawMetricHealth); err != nil {\n 432→\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n 433→\t\t\treturn nil, err\n 434→\t\t}\n 435→\n 436→\t\tif len(RawMetaData) == 0 {\n 437→\t\t\tnode.MetaData = nil\n 438→\t\t} else {\n 439→\t\t\tmetaData := make(map[string]string)\n 440→\t\t\tif err := json.Unmarshal(RawMetaData, &metaData); err != nil {\n 441→\t\t\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n 442→\t\t\t\treturn nil, err\n 443→\t\t\t}\n 444→\t\t\tnode.MetaData = metaData\n 445→\t\t}\n 446→\n 447→\t\tif len(RawMetricHealth) == 0 {\n 448→\t\t\tnode.HealthData = nil\n 449→\t\t} else {\n 450→\t\t\thealthData := make(map[string][]string)\n 451→\t\t\tif err := json.Unmarshal(RawMetricHealth, &healthData); err != nil {\n 452→\t\t\t\tcclog.Warn(\"Error while unmarshaling raw healthdata json\")\n 453→\t\t\t\treturn nil, err\n 454→\t\t\t}\n 455→\t\t\tnode.HealthData = healthData\n 456→\t\t}\n 457→\n 458→\t\tnodes = append(nodes, &node)\n 459→\t}\n 460→\n 461→\tif err := rows.Err(); err != nil {\n 462→\t\treturn nil, err\n 463→\t}\n 464→\n 465→\treturn nodes, nil\n 466→}\n 467→\n 468→// CountNodes returns the total matched nodes based on a node filter. It always operates\n 469→// on the last state (largest timestamp) per node.\n 470→func (r *NodeRepository) CountNodes(\n 471→\tctx context.Context,\n 472→\tfilters []*model.NodeFilter,\n 473→) (int, error) {\n 474→\tquery, qerr := AccessCheck(ctx,\n 475→\t\tsq.Select(\"COUNT(*)\").\n 476→\t\t\tFrom(\"node\").\n 477→\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 478→\t\t\tWhere(latestStateCondition()))\n 479→\tif qerr != nil {\n 480→\t\treturn 0, qerr\n 481→\t}\n 482→\n 483→\tquery = applyNodeFilters(query, filters)\n 484→\n 485→\tvar count int\n 486→\tif err := query.RunWith(r.stmtCache).QueryRow().Scan(&count); err != nil {\n 487→\t\tqueryString, queryVars, _ := query.ToSql()\n 488→\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n 489→\t\treturn 0, err\n 490→\t}\n 491→\n 492→\treturn count, nil\n 493→}\n 494→\n 495→func (r *NodeRepository) ListNodes(cluster string) ([]*schema.Node, error) {\n 496→\tq := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n 497→\t\t\"node_state.node_state\", \"node_state.health_state\").\n 498→\t\tFrom(\"node\").\n 499→\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 500→\t\tWhere(latestStateCondition()).\n 501→\t\tWhere(\"node.cluster = ?\", cluster).\n 502→\t\tOrderBy(\"node.hostname ASC\")\n 503→\n 504→\trows, err := q.RunWith(r.DB).Query()\n 505→\tif err != nil {\n 506→\t\tcclog.Warn(\"Error while querying node list\")\n 507→\t\treturn nil, err\n 508→\t}\n 509→\tnodeList := make([]*schema.Node, 0, 100)\n 510→\tdefer rows.Close()\n 511→\tfor rows.Next() {\n 512→\t\tnode := &schema.Node{}\n 513→\t\tif err := rows.Scan(&node.Hostname, &node.Cluster,\n 514→\t\t\t&node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n 515→\t\t\tcclog.Warn(\"Error while scanning node list (ListNodes)\")\n 516→\t\t\treturn nil, err\n 517→\t\t}\n 518→\n 519→\t\tnodeList = append(nodeList, node)\n 520→\t}\n 521→\n 522→\treturn nodeList, nil\n 523→}\n 524→\n 525→func (r *NodeRepository) MapNodes(cluster string) (map[string]string, error) {\n 526→\tq := sq.Select(\"node.hostname\", \"node_state.node_state\").\n 527→\t\tFrom(\"node\").\n 528→\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 529→\t\tWhere(latestStateCondition()).\n 530→\t\tWhere(\"node.cluster = ?\", cluster).\n 531→\t\tOrderBy(\"node.hostname ASC\")\n 532→\n 533→\trows, err := q.RunWith(r.DB).Query()\n 534→\tif err != nil {\n 535→\t\tcclog.Warn(\"Error while querying node list\")\n 536→\t\treturn nil, err\n 537→\t}\n 538→\n 539→\tstateMap := make(map[string]string)\n 540→\tdefer rows.Close()\n 541→\tfor rows.Next() {\n 542→\t\tvar hostname, nodestate string\n 543→\t\tif err := rows.Scan(&hostname, &nodestate); err != nil {\n 544→\t\t\tcclog.Warn(\"Error while scanning node list (MapNodes)\")\n 545→\t\t\treturn nil, err\n 546→\t\t}\n 547→\n 548→\t\tstateMap[hostname] = nodestate\n 549→\t}\n 550→\n 551→\treturn stateMap, nil\n 552→}\n 553→\n 554→func (r *NodeRepository) CountStates(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStates, error) {\n 555→\tquery, qerr := AccessCheck(ctx,\n 556→\t\tsq.Select(column, \"COUNT(*) as count\").\n 557→\t\t\tFrom(\"node\").\n 558→\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n 559→\t\t\tWhere(latestStateCondition()).\n 560→\t\t\tGroupBy(column))\n 561→\tif qerr != nil {\n 562→\t\treturn nil, qerr\n 563→\t}\n 564→\n 565→\tquery = applyNodeFilters(query, filters)\n 566→\n 567→\trows, err := query.RunWith(r.stmtCache).Query()\n 568→\tif err != nil {\n 569→\t\tqueryString, queryVars, _ := query.ToSql()\n 570→\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n 571→\t\treturn nil, err\n 572→\t}\n 573→\tdefer rows.Close()\n 574→\n 575→\tnodes := make([]*model.NodeStates, 0)\n 576→\tfor rows.Next() {\n 577→\t\tvar state string\n 578→\t\tvar count int\n 579→\t\tif err := rows.Scan(&state, &count); err != nil {\n 580→\t\t\tcclog.Warn(\"Error while scanning rows (CountStates)\")\n 581→\t\t\treturn nil, err\n 582→\t\t}\n 583→\t\tnodes = append(nodes, &model.NodeStates{State: state, Count: count})\n 584→\t}\n 585→\n 586→\tif err := rows.Err(); err != nil {\n 587→\t\treturn nil, err\n 588→\t}\n 589→\n 590→\treturn nodes, nil\n 591→}\n 592→\n 593→func (r *NodeRepository) CountStatesTimed(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStatesTimed, error) {\n 594→\tquery, qerr := AccessCheck(ctx, sq.Select(column, \"time_stamp\", \"count(*) as count\").From(\"node\")) // \"cluster\"?\n 595→\tif qerr != nil {\n 596→\t\treturn nil, qerr\n 597→\t}\n 598→\n 599→\tquery = query.Join(\"node_state ON node_state.node_id = node.id\")\n 600→\n 601→\tfor _, f := range filters {\n 602→\t\t// Required\n 603→\t\tif f.TimeStart != nil {\n 604→\t\t\tquery = query.Where(\"time_stamp > ?\", f.TimeStart)\n 605→\t\t}\n 606→\t\t// Optional\n 607→\t\tif f.Hostname != nil {\n 608→\t\t\tquery = buildStringCondition(\"hostname\", f.Hostname, query)\n 609→\t\t}\n 610→\t\tif f.Cluster != nil {\n 611→\t\t\tquery = buildStringCondition(\"cluster\", f.Cluster, query)\n 612→\t\t}\n 613→\t\tif f.SubCluster != nil {\n 614→\t\t\tquery = buildStringCondition(\"subcluster\", f.SubCluster, query)\n 615→\t\t}\n 616→\t\tif f.SchedulerState != nil {\n 617→\t\t\tquery = query.Where(\"node_state = ?\", f.SchedulerState)\n 618→\t\t}\n 619→\t\tif f.HealthState != nil {\n 620→\t\t\tquery = query.Where(\"health_state = ?\", f.HealthState)\n 621→\t\t}\n 622→\t}\n 623→\n 624→\t// Add Group and Order\n 625→\tquery = query.GroupBy(column + \", time_stamp\").OrderBy(\"time_stamp ASC\")\n 626→\n 627→\trows, err := query.RunWith(r.stmtCache).Query()\n 628→\tif err != nil {\n 629→\t\tqueryString, queryVars, _ := query.ToSql()\n 630→\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n 631→\t\treturn nil, err\n 632→\t}\n 633→\tdefer rows.Close()\n 634→\n 635→\trawData := make(map[string][][]int)\n 636→\tfor rows.Next() {\n 637→\t\tvar state string\n 638→\t\tvar timestamp, count int\n 639→\n 640→\t\tif err := rows.Scan(&state, ×tamp, &count); err != nil {\n 641→\t\t\tcclog.Warnf(\"Error while scanning rows (CountStatesTimed) at time '%d'\", timestamp)\n 642→\t\t\treturn nil, err\n 643→\t\t}\n 644→\n 645→\t\tif rawData[state] == nil {\n 646→\t\t\trawData[state] = [][]int{make([]int, 0), make([]int, 0)}\n 647→\t\t}\n 648→\n 649→\t\trawData[state][0] = append(rawData[state][0], timestamp)\n 650→\t\trawData[state][1] = append(rawData[state][1], count)\n 651→\t}\n 652→\n 653→\tif err := rows.Err(); err != nil {\n 654→\t\treturn nil, err\n 655→\t}\n 656→\n 657→\ttimedStates := make([]*model.NodeStatesTimed, 0)\n 658→\tfor state, data := range rawData {\n 659→\t\tentry := model.NodeStatesTimed{State: state, Times: data[0], Counts: data[1]}\n 660→\t\ttimedStates = append(timedStates, &entry)\n 661→\t}\n 662→\n 663→\treturn timedStates, nil\n 664→}\n 665→\n 666→func (r *NodeRepository) GetNodesForList(\n 667→\tctx context.Context,\n 668→\tcluster string,\n 669→\tsubCluster string,\n 670→\tstateFilter string,\n 671→\tnodeFilter string,\n 672→\tpage *model.PageRequest,\n 673→) ([]string, map[string]string, int, bool, error) {\n 674→\t// Init Return Vars\n 675→\tnodes := make([]string, 0)\n 676→\tstateMap := make(map[string]string)\n 677→\tcountNodes := 0\n 678→\thasNextPage := false\n 679→\n 680→\t// Build Filters\n 681→\tqueryFilters := make([]*model.NodeFilter, 0)\n 682→\tif cluster != \"\" {\n 683→\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Cluster: &model.StringInput{Eq: &cluster}})\n 684→\t}\n 685→\tif subCluster != \"\" {\n 686→\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SubCluster: &model.StringInput{Eq: &subCluster}})\n 687→\t}\n 688→\tif nodeFilter != \"\" && stateFilter != \"notindb\" {\n 689→\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Hostname: &model.StringInput{Contains: &nodeFilter}})\n 690→\t}\n 691→\tif stateFilter != \"all\" && stateFilter != \"notindb\" {\n 692→\t\tqueryState := schema.SchedulerState(stateFilter)\n 693→\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SchedulerState: &queryState})\n 694→\t}\n 695→\t// if healthFilter != \"all\" {\n 696→\t// \tfilters = append(filters, &model.NodeFilter{HealthState: &healthFilter})\n 697→\t// }\n 698→\n 699→\t// Special Case: Disable Paging for missing nodes filter, save IPP for later\n 700→\tvar backupItems int\n 701→\tif stateFilter == \"notindb\" {\n 702→\t\tbackupItems = page.ItemsPerPage\n 703→\t\tpage.ItemsPerPage = -1\n 704→\t}\n 705→\n 706→\t// Query Nodes From DB\n 707→\trawNodes, serr := r.QueryNodes(ctx, queryFilters, page, nil) // Order not Used\n 708→\tif serr != nil {\n 709→\t\tcclog.Warn(\"error while loading node database data (Resolver.NodeMetricsList)\")\n 710→\t\treturn nil, nil, 0, false, serr\n 711→\t}\n 712→\n 713→\t// Intermediate Node Result Info\n 714→\tfor _, node := range rawNodes {\n 715→\t\tif node == nil {\n 716→\t\t\tcontinue\n 717→\t\t}\n 718→\t\tnodes = append(nodes, node.Hostname)\n 719→\t\tstateMap[node.Hostname] = string(node.NodeState)\n 720→\t}\n 721→\n 722→\t// Special Case: Find Nodes not in DB node table but in metricStore only\n 723→\tif stateFilter == \"notindb\" {\n 724→\t\t// Reapply Original Paging\n 725→\t\tpage.ItemsPerPage = backupItems\n 726→\t\t// Get Nodes From Topology\n 727→\t\tvar topoNodes []string\n 728→\t\tif subCluster != \"\" {\n 729→\t\t\tscNodes := archive.NodeLists[cluster][subCluster]\n 730→\t\t\ttopoNodes = scNodes.PrintList()\n 731→\t\t} else {\n 732→\t\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n 733→\t\t\tfor _, nodeList := range subClusterNodeLists {\n 734→\t\t\t\ttopoNodes = append(topoNodes, nodeList.PrintList()...)\n 735→\t\t\t}\n 736→\t\t}\n 737→\t\t// Compare to all nodes from cluster/subcluster in DB\n 738→\t\tvar missingNodes []string\n 739→\t\tfor _, scanNode := range topoNodes {\n 740→\t\t\tif !slices.Contains(nodes, scanNode) {\n 741→\t\t\t\tmissingNodes = append(missingNodes, scanNode)\n 742→\t\t\t}\n 743→\t\t}\n 744→\t\t// Filter nodes by name\n 745→\t\tif nodeFilter != \"\" {\n 746→\t\t\tfilteredNodesByName := []string{}\n 747→\t\t\tfor _, missingNode := range missingNodes {\n 748→\t\t\t\tif strings.Contains(missingNode, nodeFilter) {\n 749→\t\t\t\t\tfilteredNodesByName = append(filteredNodesByName, missingNode)\n 750→\t\t\t\t}\n 751→\t\t\t}\n 752→\t\t\tmissingNodes = filteredNodesByName\n 753→\t\t}\n 754→\t\t// Sort Missing Nodes Alphanumerically\n 755→\t\tslices.Sort(missingNodes)\n 756→\t\t// Total Missing\n 757→\t\tcountNodes = len(missingNodes)\n 758→\t\t// Apply paging\n 759→\t\tif countNodes > page.ItemsPerPage {\n 760→\t\t\tstart := (page.Page - 1) * page.ItemsPerPage\n 761→\t\t\tend := start + page.ItemsPerPage\n 762→\t\t\tif end > countNodes {\n 763→\t\t\t\tend = countNodes\n 764→\t\t\t\thasNextPage = false\n 765→\t\t\t} else {\n 766→\t\t\t\thasNextPage = true\n 767→\t\t\t}\n 768→\t\t\tnodes = missingNodes[start:end]\n 769→\t\t} else {\n 770→\t\t\tnodes = missingNodes\n 771→\t\t}\n 772→\n 773→\t} else {\n 774→\t\t// DB Nodes: Count and derive hasNextPage from count\n 775→\t\tvar cerr error\n 776→\t\tcountNodes, cerr = r.CountNodes(ctx, queryFilters)\n 777→\t\tif cerr != nil {\n 778→\t\t\tcclog.Warn(\"error while counting node database data (Resolver.NodeMetricsList)\")\n 779→\t\t\treturn nil, nil, 0, false, cerr\n 780→\t\t}\n 781→\t\thasNextPage = page.Page*page.ItemsPerPage < countNodes\n 782→\t}\n 783→\n 784→\t// Fallback for non-init'd node table in DB; Ignores stateFilter\n 785→\tif stateFilter == \"all\" && countNodes == 0 {\n 786→\t\tnodes, countNodes, hasNextPage = getNodesFromTopol(cluster, subCluster, nodeFilter, page)\n 787→\t}\n 788→\n 789→\treturn nodes, stateMap, countNodes, hasNextPage, nil\n 790→}\n 791→\n 792→func AccessCheck(ctx context.Context, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n 793→\tuser := GetUserFromContext(ctx)\n 794→\treturn AccessCheckWithUser(user, query)\n 795→}\n 796→\n 797→func AccessCheckWithUser(user *schema.User, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n 798→\tif user == nil {\n 799→\t\tvar qnil sq.SelectBuilder\n 800→\t\treturn qnil, fmt.Errorf(\"user context is nil\")\n 801→\t}\n 802→\n 803→\tswitch {\n 804→\t// case len(user.Roles) == 1 && user.HasRole(schema.RoleApi): // API-User : Access NodeInfos\n 805→\t// \treturn query, nil\n 806→\tcase user.HasAnyRole([]schema.Role{schema.RoleAdmin, schema.RoleSupport}): // Admin & Support : Access NodeInfos\n 807→\t\treturn query, nil\n 808→\tdefault: // No known Role: No Access, return error\n 809→\t\tvar qnil sq.SelectBuilder\n 810→\t\treturn qnil, fmt.Errorf(\"user has no or unknown roles\")\n 811→\t}\n 812→}\n 813→\n 814→func getNodesFromTopol(cluster string, subCluster string, nodeFilter string, page *model.PageRequest) ([]string, int, bool) {\n 815→\t// 0) Init additional vars\n 816→\thasNextPage := false\n 817→\ttotalNodes := 0\n 818→\n 819→\t// 1) Get list of all nodes\n 820→\tvar topolNodes []string\n 821→\tif subCluster != \"\" {\n 822→\t\tscNodes := archive.NodeLists[cluster][subCluster]\n 823→\t\ttopolNodes = scNodes.PrintList()\n 824→\t} else {\n 825→\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n 826→\t\tfor _, nodeList := range subClusterNodeLists {\n 827→\t\t\ttopolNodes = append(topolNodes, nodeList.PrintList()...)\n 828→\t\t}\n 829→\t}\n 830→\n 831→\t// 2) Filter nodes\n 832→\tif nodeFilter != \"\" {\n 833→\t\tfilteredNodes := []string{}\n 834→\t\tfor _, node := range topolNodes {\n 835→\t\t\tif strings.Contains(node, nodeFilter) {\n 836→\t\t\t\tfilteredNodes = append(filteredNodes, node)\n 837→\t\t\t}\n 838→\t\t}\n 839→\t\ttopolNodes = filteredNodes\n 840→\t}\n 841→\n 842→\t// 2.1) Count total nodes && Sort nodes -> Sorting invalidated after ccms return ...\n 843→\ttotalNodes = len(topolNodes)\n 844→\tsort.Strings(topolNodes)\n 845→\n 846→\t// 3) Apply paging\n 847→\tif len(topolNodes) > page.ItemsPerPage {\n 848→\t\tstart := (page.Page - 1) * page.ItemsPerPage\n 849→\t\tend := start + page.ItemsPerPage\n 850→\t\tif end >= len(topolNodes) {\n 851→\t\t\tend = len(topolNodes)\n 852→\t\t\thasNextPage = false\n 853→\t\t} else {\n 854→\t\t\thasNextPage = true\n 855→\t\t}\n 856→\t\ttopolNodes = topolNodes[start:end]\n 857→\t}\n 858→\n 859→\treturn topolNodes, totalNodes, hasNextPage\n 860→}\n 861→"}]},"uuid":"2188f7a5-cd29-489c-9a95-04382c575155","timestamp":"2026-03-16T10:12:41.122Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/node.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"context\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"slices\"\n\t\"sort\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/lrucache\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n\t\"github.com/jmoiron/sqlx\"\n)\n\nvar (\n\tnodeRepoOnce sync.Once\n\tnodeRepoInstance *NodeRepository\n)\n\ntype NodeRepository struct {\n\tDB *sqlx.DB\n\tstmtCache *sq.StmtCache\n\tcache *lrucache.Cache\n\tdriver string\n}\n\nfunc GetNodeRepository() *NodeRepository {\n\tnodeRepoOnce.Do(func() {\n\t\tdb := GetConnection()\n\n\t\tnodeRepoInstance = &NodeRepository{\n\t\t\tDB: db.DB,\n\t\t\tdriver: db.Driver,\n\n\t\t\tstmtCache: sq.NewStmtCache(db.DB),\n\t\t\tcache: lrucache.New(repoConfig.CacheSize),\n\t\t}\n\t})\n\treturn nodeRepoInstance\n}\n\n// latestStateCondition returns a squirrel expression that restricts node_state\n// rows to the latest per node_id using a correlated subquery.\n// Requires the query to join node and node_state tables.\nfunc latestStateCondition() sq.Sqlizer {\n\treturn sq.Expr(\n\t\t\"node_state.id = (SELECT ns2.id FROM node_state ns2 WHERE ns2.node_id = node.id ORDER BY ns2.time_stamp DESC LIMIT 1)\",\n\t)\n}\n\n// applyNodeFilters applies common NodeFilter conditions to a query that joins\n// the node and node_state tables with latestStateCondition.\nfunc applyNodeFilters(query sq.SelectBuilder, filters []*model.NodeFilter) sq.SelectBuilder {\n\tfor _, f := range filters {\n\t\tif f.Cluster != nil {\n\t\t\tquery = buildStringCondition(\"node.cluster\", f.Cluster, query)\n\t\t}\n\t\tif f.SubCluster != nil {\n\t\t\tquery = buildStringCondition(\"node.subcluster\", f.SubCluster, query)\n\t\t}\n\t\tif f.Hostname != nil {\n\t\t\tquery = buildStringCondition(\"node.hostname\", f.Hostname, query)\n\t\t}\n\t\tif f.SchedulerState != nil {\n\t\t\tquery = query.Where(\"node_state.node_state = ?\", f.SchedulerState)\n\t\t}\n\t\tif f.HealthState != nil {\n\t\t\tquery = query.Where(\"node_state.health_state = ?\", f.HealthState)\n\t\t}\n\t}\n\treturn query\n}\n\nfunc (r *NodeRepository) FetchMetadata(hostname string, cluster string) (map[string]string, error) {\n\tstart := time.Now()\n\n\tRawMetaData := make([]byte, 0)\n\n\tif err := sq.Select(\"node.meta_data\").From(\"node\").\n\t\tWhere(\"node.hostname = ?\", hostname).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tRunWith(r.stmtCache).QueryRow().Scan(&RawMetaData); err != nil {\n\t\tcclog.Warn(\"Error while scanning for node metadata\")\n\t\treturn nil, err\n\t}\n\n\tif len(RawMetaData) == 0 {\n\t\treturn nil, nil\n\t}\n\n\tMetaData := make(map[string]string)\n\n\tif err := json.Unmarshal(RawMetaData, &MetaData); err != nil {\n\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n\t\treturn nil, err\n\t}\n\n\tcclog.Debugf(\"Timer FetchMetadata %s\", time.Since(start))\n\treturn MetaData, nil\n}\n\nfunc (r *NodeRepository) GetNode(hostname string, cluster string, withMeta bool) (*schema.Node, error) {\n\tnode := &schema.Node{}\n\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.hostname = ?\", hostname).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tRunWith(r.DB).\n\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\tcclog.Warnf(\"Error while querying node '%s' from database: %v\", hostname, err)\n\t\treturn nil, err\n\t}\n\n\tif withMeta {\n\t\tvar err error\n\t\tvar meta map[string]string\n\t\tif meta, err = r.FetchMetadata(hostname, cluster); err != nil {\n\t\t\tcclog.Warnf(\"Error while fetching metadata for node '%s'\", hostname)\n\t\t\treturn nil, err\n\t\t}\n\t\tnode.MetaData = meta\n\t}\n\n\treturn node, nil\n}\n\nfunc (r *NodeRepository) GetNodeByID(id int64, withMeta bool) (*schema.Node, error) {\n\tnode := &schema.Node{}\n\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.id = ?\", id).\n\t\tRunWith(r.DB).\n\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\tcclog.Warnf(\"Error while querying node ID '%d' from database: %v\", id, err)\n\t\treturn nil, err\n\t}\n\n\tif withMeta {\n\t\tmeta, metaErr := r.FetchMetadata(node.Hostname, node.Cluster)\n\t\tif metaErr != nil {\n\t\t\tcclog.Warnf(\"Error while fetching metadata for node ID '%d': %v\", id, metaErr)\n\t\t\treturn nil, metaErr\n\t\t}\n\t\tnode.MetaData = meta\n\t}\n\n\treturn node, nil\n}\n\n// const NamedNodeInsert string = `\n// INSERT INTO node (time_stamp, hostname, cluster, subcluster, node_state, health_state,\n//\n//\tcpus_allocated, cpus_total, memory_allocated, memory_total, gpus_allocated, gpus_total)\n//\tVALUES (:time_stamp, :hostname, :cluster, :subcluster, :node_state, :health_state,\n//\t:cpus_allocated, :cpus_total, :memory_allocated, :memory_total, :gpus_allocated, :gpus_total);`\n\nconst NamedNodeInsert string = `\nINSERT INTO node (hostname, cluster, subcluster)\n\tVALUES (:hostname, :cluster, :subcluster);`\n\n// AddNode adds a Node to the node table. This can be triggered by a node collector registration or\n// from a nodestate update from the job scheduler.\nfunc (r *NodeRepository) AddNode(node *schema.NodeDB) (int64, error) {\n\tvar err error\n\n\tres, err := r.DB.NamedExec(NamedNodeInsert, node)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while adding node '%v' to database\", node.Hostname)\n\t\treturn 0, err\n\t}\n\tnode.ID, err = res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while getting last insert id for node '%v' from database\", node.Hostname)\n\t\treturn 0, err\n\t}\n\n\treturn node.ID, nil\n}\n\nconst NamedNodeStateInsert string = `\nINSERT INTO node_state (time_stamp, node_state, health_state, health_metrics,\n\tcpus_allocated, memory_allocated, gpus_allocated, jobs_running, node_id)\n\tVALUES (:time_stamp, :node_state, :health_state, :health_metrics,\n\t:cpus_allocated, :memory_allocated, :gpus_allocated, :jobs_running, :node_id);`\n\n// TODO: Add real Monitoring Health State\n\n// UpdateNodeState is called from the Node REST API to add a row in the node state table\nfunc (r *NodeRepository) UpdateNodeState(hostname string, cluster string, nodeState *schema.NodeStateDB) error {\n\tvar id int64\n\n\tif err := sq.Select(\"id\").From(\"node\").\n\t\tWhere(\"node.hostname = ?\", hostname).Where(\"node.cluster = ?\", cluster).RunWith(r.DB).\n\t\tQueryRow().Scan(&id); err != nil {\n\t\tif err == sql.ErrNoRows {\n\t\t\tsubcluster, err := archive.GetSubClusterByNode(cluster, hostname)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error while getting subcluster for node '%s' in cluster '%s': %v\", hostname, cluster, err)\n\t\t\t\treturn err\n\t\t\t}\n\t\t\tnode := schema.NodeDB{\n\t\t\t\tHostname: hostname, Cluster: cluster, SubCluster: subcluster,\n\t\t\t}\n\t\t\tid, err = r.AddNode(&node)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error while adding node '%s' to database: %v\", hostname, err)\n\t\t\t\treturn err\n\t\t\t}\n\n\t\t\tcclog.Debugf(\"Added node '%s' to database\", hostname)\n\t\t} else {\n\t\t\tcclog.Warnf(\"Error while querying node '%v' from database\", id)\n\t\t\treturn err\n\t\t}\n\t}\n\n\tnodeState.NodeID = id\n\n\t_, err := r.DB.NamedExec(NamedNodeStateInsert, nodeState)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while adding node state for '%v' to database\", hostname)\n\t\treturn err\n\t}\n\tcclog.Debugf(\"Updated node state for '%s' in database\", hostname)\n\treturn nil\n}\n\n// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {\n// \tif _, err := sq.Update(\"node\").Set(\"health_state\", healthState).Where(\"node.id = ?\", id).RunWith(r.DB).Exec(); err != nil {\n// \t\tcclog.Errorf(\"error while updating node '%d'\", id)\n// \t\treturn err\n// \t}\n//\n// \treturn nil\n// }\n\n// NodeStateWithNode combines a node state row with denormalized node info.\ntype NodeStateWithNode struct {\n\tID int64 `db:\"id\"`\n\tTimeStamp int64 `db:\"time_stamp\"`\n\tNodeState string `db:\"node_state\"`\n\tHealthState string `db:\"health_state\"`\n\tHealthMetrics string `db:\"health_metrics\"`\n\tCpusAllocated int `db:\"cpus_allocated\"`\n\tMemoryAllocated int64 `db:\"memory_allocated\"`\n\tGpusAllocated int `db:\"gpus_allocated\"`\n\tJobsRunning int `db:\"jobs_running\"`\n\tHostname string `db:\"hostname\"`\n\tCluster string `db:\"cluster\"`\n\tSubCluster string `db:\"subcluster\"`\n}\n\n// FindNodeStatesBefore returns all node_state rows with time_stamp < cutoff,\n// joined with node info for denormalized archiving.\nfunc (r *NodeRepository) FindNodeStatesBefore(cutoff int64) ([]NodeStateWithNode, error) {\n\trows, err := sq.Select(\n\t\t\"node_state.id\", \"node_state.time_stamp\", \"node_state.node_state\",\n\t\t\"node_state.health_state\", \"node_state.health_metrics\",\n\t\t\"node_state.cpus_allocated\", \"node_state.memory_allocated\",\n\t\t\"node_state.gpus_allocated\", \"node_state.jobs_running\",\n\t\t\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t).\n\t\tFrom(\"node_state\").\n\t\tJoin(\"node ON node_state.node_id = node.id\").\n\t\tWhere(sq.Lt{\"node_state.time_stamp\": cutoff}).\n\t\tWhere(\"node_state.id NOT IN (SELECT ns2.id FROM node_state ns2 WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id))\").\n\t\tOrderBy(\"node.cluster ASC\", \"node.subcluster ASC\", \"node.hostname ASC\", \"node_state.time_stamp ASC\").\n\t\tRunWith(r.DB).Query()\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tvar result []NodeStateWithNode\n\tfor rows.Next() {\n\t\tvar ns NodeStateWithNode\n\t\tvar healthMetrics sql.NullString\n\t\tif err := rows.Scan(&ns.ID, &ns.TimeStamp, &ns.NodeState,\n\t\t\t&ns.HealthState, &healthMetrics,\n\t\t\t&ns.CpusAllocated, &ns.MemoryAllocated,\n\t\t\t&ns.GpusAllocated, &ns.JobsRunning,\n\t\t\t&ns.Hostname, &ns.Cluster, &ns.SubCluster); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\t\tns.HealthMetrics = healthMetrics.String\n\t\tresult = append(result, ns)\n\t}\n\treturn result, nil\n}\n\n// DeleteNodeStatesBefore removes node_state rows with time_stamp < cutoff,\n// but always preserves the row with the latest timestamp per node_id.\nfunc (r *NodeRepository) DeleteNodeStatesBefore(cutoff int64) (int64, error) {\n\tres, err := r.DB.Exec(\n\t\t`DELETE FROM node_state WHERE time_stamp < ?\n\t\t AND id NOT IN (\n\t\t SELECT id FROM node_state ns2\n\t\t WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id)\n\t\t )`,\n\t\tcutoff,\n\t)\n\tif err != nil {\n\t\treturn 0, err\n\t}\n\treturn res.RowsAffected()\n}\n\nfunc (r *NodeRepository) DeleteNode(id int64) error {\n\t_, err := r.DB.Exec(`DELETE FROM node WHERE node.id = ?`, id)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while deleting node '%d' from DB\", id)\n\t\treturn err\n\t}\n\tcclog.Infof(\"deleted node '%d' from DB\", id)\n\treturn nil\n}\n\n// QueryNodes returns a list of nodes based on a node filter. It always operates\n// on the last state (largest timestamp).\nfunc (r *NodeRepository) QueryNodes(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n\tpage *model.PageRequest,\n\torder *model.OrderByInput, // Currently unused!\n) ([]*schema.Node, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\tquery = query.OrderBy(\"node.hostname ASC\")\n\n\tif page != nil && page.ItemsPerPage != -1 {\n\t\tlimit := uint64(page.ItemsPerPage)\n\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n\t}\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*schema.Node, 0)\n\tfor rows.Next() {\n\t\tnode := schema.Node{}\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n\t\t\t&node.NodeState, &node.HealthState); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\t\tnodes = append(nodes, &node)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\n// QueryNodesWithMeta returns a list of nodes based on a node filter. It always operates\n// on the last state (largest timestamp). It includes both (!) optional JSON column data\nfunc (r *NodeRepository) QueryNodesWithMeta(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n\tpage *model.PageRequest,\n\torder *model.OrderByInput, // Currently unused!\n) ([]*schema.Node, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\t\"node_state.node_state\", \"node_state.health_state\",\n\t\t\t\"node.meta_data\", \"node_state.health_metrics\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\tquery = query.OrderBy(\"node.hostname ASC\")\n\n\tif page != nil && page.ItemsPerPage != -1 {\n\t\tlimit := uint64(page.ItemsPerPage)\n\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n\t}\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*schema.Node, 0)\n\tfor rows.Next() {\n\t\tnode := schema.Node{}\n\t\tRawMetaData := make([]byte, 0)\n\t\tRawMetricHealth := make([]byte, 0)\n\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n\t\t\t&node.NodeState, &node.HealthState, &RawMetaData, &RawMetricHealth); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif len(RawMetaData) == 0 {\n\t\t\tnode.MetaData = nil\n\t\t} else {\n\t\t\tmetaData := make(map[string]string)\n\t\t\tif err := json.Unmarshal(RawMetaData, &metaData); err != nil {\n\t\t\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t\tnode.MetaData = metaData\n\t\t}\n\n\t\tif len(RawMetricHealth) == 0 {\n\t\t\tnode.HealthData = nil\n\t\t} else {\n\t\t\thealthData := make(map[string][]string)\n\t\t\tif err := json.Unmarshal(RawMetricHealth, &healthData); err != nil {\n\t\t\t\tcclog.Warn(\"Error while unmarshaling raw healthdata json\")\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t\tnode.HealthData = healthData\n\t\t}\n\n\t\tnodes = append(nodes, &node)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\n// CountNodes returns the total matched nodes based on a node filter. It always operates\n// on the last state (largest timestamp) per node.\nfunc (r *NodeRepository) CountNodes(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n) (int, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"COUNT(*)\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn 0, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\n\tvar count int\n\tif err := query.RunWith(r.stmtCache).QueryRow().Scan(&count); err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn 0, err\n\t}\n\n\treturn count, nil\n}\n\nfunc (r *NodeRepository) ListNodes(cluster string) ([]*schema.Node, error) {\n\tq := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tOrderBy(\"node.hostname ASC\")\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying node list\")\n\t\treturn nil, err\n\t}\n\tnodeList := make([]*schema.Node, 0, 100)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\tnode := &schema.Node{}\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster,\n\t\t\t&node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning node list (ListNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tnodeList = append(nodeList, node)\n\t}\n\n\treturn nodeList, nil\n}\n\nfunc (r *NodeRepository) MapNodes(cluster string) (map[string]string, error) {\n\tq := sq.Select(\"node.hostname\", \"node_state.node_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tOrderBy(\"node.hostname ASC\")\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying node list\")\n\t\treturn nil, err\n\t}\n\n\tstateMap := make(map[string]string)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\tvar hostname, nodestate string\n\t\tif err := rows.Scan(&hostname, &nodestate); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning node list (MapNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tstateMap[hostname] = nodestate\n\t}\n\n\treturn stateMap, nil\n}\n\nfunc (r *NodeRepository) CountStates(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStates, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(column, \"COUNT(*) as count\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()).\n\t\t\tGroupBy(column))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*model.NodeStates, 0)\n\tfor rows.Next() {\n\t\tvar state string\n\t\tvar count int\n\t\tif err := rows.Scan(&state, &count); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (CountStates)\")\n\t\t\treturn nil, err\n\t\t}\n\t\tnodes = append(nodes, &model.NodeStates{State: state, Count: count})\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\nfunc (r *NodeRepository) CountStatesTimed(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStatesTimed, error) {\n\tquery, qerr := AccessCheck(ctx, sq.Select(column, \"time_stamp\", \"count(*) as count\").From(\"node\")) // \"cluster\"?\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = query.Join(\"node_state ON node_state.node_id = node.id\")\n\n\tfor _, f := range filters {\n\t\t// Required\n\t\tif f.TimeStart != nil {\n\t\t\tquery = query.Where(\"time_stamp > ?\", f.TimeStart)\n\t\t}\n\t\t// Optional\n\t\tif f.Hostname != nil {\n\t\t\tquery = buildStringCondition(\"hostname\", f.Hostname, query)\n\t\t}\n\t\tif f.Cluster != nil {\n\t\t\tquery = buildStringCondition(\"cluster\", f.Cluster, query)\n\t\t}\n\t\tif f.SubCluster != nil {\n\t\t\tquery = buildStringCondition(\"subcluster\", f.SubCluster, query)\n\t\t}\n\t\tif f.SchedulerState != nil {\n\t\t\tquery = query.Where(\"node_state = ?\", f.SchedulerState)\n\t\t}\n\t\tif f.HealthState != nil {\n\t\t\tquery = query.Where(\"health_state = ?\", f.HealthState)\n\t\t}\n\t}\n\n\t// Add Group and Order\n\tquery = query.GroupBy(column + \", time_stamp\").OrderBy(\"time_stamp ASC\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\trawData := make(map[string][][]int)\n\tfor rows.Next() {\n\t\tvar state string\n\t\tvar timestamp, count int\n\n\t\tif err := rows.Scan(&state, ×tamp, &count); err != nil {\n\t\t\tcclog.Warnf(\"Error while scanning rows (CountStatesTimed) at time '%d'\", timestamp)\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif rawData[state] == nil {\n\t\t\trawData[state] = [][]int{make([]int, 0), make([]int, 0)}\n\t\t}\n\n\t\trawData[state][0] = append(rawData[state][0], timestamp)\n\t\trawData[state][1] = append(rawData[state][1], count)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\ttimedStates := make([]*model.NodeStatesTimed, 0)\n\tfor state, data := range rawData {\n\t\tentry := model.NodeStatesTimed{State: state, Times: data[0], Counts: data[1]}\n\t\ttimedStates = append(timedStates, &entry)\n\t}\n\n\treturn timedStates, nil\n}\n\nfunc (r *NodeRepository) GetNodesForList(\n\tctx context.Context,\n\tcluster string,\n\tsubCluster string,\n\tstateFilter string,\n\tnodeFilter string,\n\tpage *model.PageRequest,\n) ([]string, map[string]string, int, bool, error) {\n\t// Init Return Vars\n\tnodes := make([]string, 0)\n\tstateMap := make(map[string]string)\n\tcountNodes := 0\n\thasNextPage := false\n\n\t// Build Filters\n\tqueryFilters := make([]*model.NodeFilter, 0)\n\tif cluster != \"\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Cluster: &model.StringInput{Eq: &cluster}})\n\t}\n\tif subCluster != \"\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SubCluster: &model.StringInput{Eq: &subCluster}})\n\t}\n\tif nodeFilter != \"\" && stateFilter != \"notindb\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Hostname: &model.StringInput{Contains: &nodeFilter}})\n\t}\n\tif stateFilter != \"all\" && stateFilter != \"notindb\" {\n\t\tqueryState := schema.SchedulerState(stateFilter)\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SchedulerState: &queryState})\n\t}\n\t// if healthFilter != \"all\" {\n\t// \tfilters = append(filters, &model.NodeFilter{HealthState: &healthFilter})\n\t// }\n\n\t// Special Case: Disable Paging for missing nodes filter, save IPP for later\n\tvar backupItems int\n\tif stateFilter == \"notindb\" {\n\t\tbackupItems = page.ItemsPerPage\n\t\tpage.ItemsPerPage = -1\n\t}\n\n\t// Query Nodes From DB\n\trawNodes, serr := r.QueryNodes(ctx, queryFilters, page, nil) // Order not Used\n\tif serr != nil {\n\t\tcclog.Warn(\"error while loading node database data (Resolver.NodeMetricsList)\")\n\t\treturn nil, nil, 0, false, serr\n\t}\n\n\t// Intermediate Node Result Info\n\tfor _, node := range rawNodes {\n\t\tif node == nil {\n\t\t\tcontinue\n\t\t}\n\t\tnodes = append(nodes, node.Hostname)\n\t\tstateMap[node.Hostname] = string(node.NodeState)\n\t}\n\n\t// Special Case: Find Nodes not in DB node table but in metricStore only\n\tif stateFilter == \"notindb\" {\n\t\t// Reapply Original Paging\n\t\tpage.ItemsPerPage = backupItems\n\t\t// Get Nodes From Topology\n\t\tvar topoNodes []string\n\t\tif subCluster != \"\" {\n\t\t\tscNodes := archive.NodeLists[cluster][subCluster]\n\t\t\ttopoNodes = scNodes.PrintList()\n\t\t} else {\n\t\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n\t\t\tfor _, nodeList := range subClusterNodeLists {\n\t\t\t\ttopoNodes = append(topoNodes, nodeList.PrintList()...)\n\t\t\t}\n\t\t}\n\t\t// Compare to all nodes from cluster/subcluster in DB\n\t\tvar missingNodes []string\n\t\tfor _, scanNode := range topoNodes {\n\t\t\tif !slices.Contains(nodes, scanNode) {\n\t\t\t\tmissingNodes = append(missingNodes, scanNode)\n\t\t\t}\n\t\t}\n\t\t// Filter nodes by name\n\t\tif nodeFilter != \"\" {\n\t\t\tfilteredNodesByName := []string{}\n\t\t\tfor _, missingNode := range missingNodes {\n\t\t\t\tif strings.Contains(missingNode, nodeFilter) {\n\t\t\t\t\tfilteredNodesByName = append(filteredNodesByName, missingNode)\n\t\t\t\t}\n\t\t\t}\n\t\t\tmissingNodes = filteredNodesByName\n\t\t}\n\t\t// Sort Missing Nodes Alphanumerically\n\t\tslices.Sort(missingNodes)\n\t\t// Total Missing\n\t\tcountNodes = len(missingNodes)\n\t\t// Apply paging\n\t\tif countNodes > page.ItemsPerPage {\n\t\t\tstart := (page.Page - 1) * page.ItemsPerPage\n\t\t\tend := start + page.ItemsPerPage\n\t\t\tif end > countNodes {\n\t\t\t\tend = countNodes\n\t\t\t\thasNextPage = false\n\t\t\t} else {\n\t\t\t\thasNextPage = true\n\t\t\t}\n\t\t\tnodes = missingNodes[start:end]\n\t\t} else {\n\t\t\tnodes = missingNodes\n\t\t}\n\n\t} else {\n\t\t// DB Nodes: Count and derive hasNextPage from count\n\t\tvar cerr error\n\t\tcountNodes, cerr = r.CountNodes(ctx, queryFilters)\n\t\tif cerr != nil {\n\t\t\tcclog.Warn(\"error while counting node database data (Resolver.NodeMetricsList)\")\n\t\t\treturn nil, nil, 0, false, cerr\n\t\t}\n\t\thasNextPage = page.Page*page.ItemsPerPage < countNodes\n\t}\n\n\t// Fallback for non-init'd node table in DB; Ignores stateFilter\n\tif stateFilter == \"all\" && countNodes == 0 {\n\t\tnodes, countNodes, hasNextPage = getNodesFromTopol(cluster, subCluster, nodeFilter, page)\n\t}\n\n\treturn nodes, stateMap, countNodes, hasNextPage, nil\n}\n\nfunc AccessCheck(ctx context.Context, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n\tuser := GetUserFromContext(ctx)\n\treturn AccessCheckWithUser(user, query)\n}\n\nfunc AccessCheckWithUser(user *schema.User, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n\tif user == nil {\n\t\tvar qnil sq.SelectBuilder\n\t\treturn qnil, fmt.Errorf(\"user context is nil\")\n\t}\n\n\tswitch {\n\t// case len(user.Roles) == 1 && user.HasRole(schema.RoleApi): // API-User : Access NodeInfos\n\t// \treturn query, nil\n\tcase user.HasAnyRole([]schema.Role{schema.RoleAdmin, schema.RoleSupport}): // Admin & Support : Access NodeInfos\n\t\treturn query, nil\n\tdefault: // No known Role: No Access, return error\n\t\tvar qnil sq.SelectBuilder\n\t\treturn qnil, fmt.Errorf(\"user has no or unknown roles\")\n\t}\n}\n\nfunc getNodesFromTopol(cluster string, subCluster string, nodeFilter string, page *model.PageRequest) ([]string, int, bool) {\n\t// 0) Init additional vars\n\thasNextPage := false\n\ttotalNodes := 0\n\n\t// 1) Get list of all nodes\n\tvar topolNodes []string\n\tif subCluster != \"\" {\n\t\tscNodes := archive.NodeLists[cluster][subCluster]\n\t\ttopolNodes = scNodes.PrintList()\n\t} else {\n\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n\t\tfor _, nodeList := range subClusterNodeLists {\n\t\t\ttopolNodes = append(topolNodes, nodeList.PrintList()...)\n\t\t}\n\t}\n\n\t// 2) Filter nodes\n\tif nodeFilter != \"\" {\n\t\tfilteredNodes := []string{}\n\t\tfor _, node := range topolNodes {\n\t\t\tif strings.Contains(node, nodeFilter) {\n\t\t\t\tfilteredNodes = append(filteredNodes, node)\n\t\t\t}\n\t\t}\n\t\ttopolNodes = filteredNodes\n\t}\n\n\t// 2.1) Count total nodes && Sort nodes -> Sorting invalidated after ccms return ...\n\ttotalNodes = len(topolNodes)\n\tsort.Strings(topolNodes)\n\n\t// 3) Apply paging\n\tif len(topolNodes) > page.ItemsPerPage {\n\t\tstart := (page.Page - 1) * page.ItemsPerPage\n\t\tend := start + page.ItemsPerPage\n\t\tif end >= len(topolNodes) {\n\t\t\tend = len(topolNodes)\n\t\t\thasNextPage = false\n\t\t} else {\n\t\t\thasNextPage = true\n\t\t}\n\t\ttopolNodes = topolNodes[start:end]\n\t}\n\n\treturn topolNodes, totalNodes, hasNextPage\n}\n","numLines":861,"startLine":1,"totalLines":861}},"sourceToolAssistantUUID":"d8f1148f-83ce-49d1-8a7f-4e6531306bf4","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"c8d3f293-f0a4-4c69-a19e-1f7a97d640ab","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01SbAkMWCk98L7vU7dNCyC7L","toolUseID":"toolu_01SbAkMWCk98L7vU7dNCyC7L","timestamp":"2026-03-16T10:12:41.400Z","uuid":"cafcb518-9cb5-4b1d-9394-e9340ec77c79","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"c8d3f293-f0a4-4c69-a19e-1f7a97d640ab","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SbAkMWCk98L7vU7dNCyC7L","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package api\n 7→\n 8→import (\n 9→\t\"database/sql\"\n 10→\t\"encoding/json\"\n 11→\t\"strings\"\n 12→\t\"sync\"\n 13→\t\"time\"\n 14→\n 15→\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n 16→\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n 17→\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n 18→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n 19→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 20→\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n 21→\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n 22→\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n 23→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 24→\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n 25→)\n 26→\n 27→// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n 28→// It mirrors the functionality of the REST API but uses NATS messaging with\n 29→// InfluxDB line protocol as the message format.\n 30→//\n 31→// # Message Format\n 32→//\n 33→// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n 34→// with the following structure:\n 35→//\n 36→//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n 37→//\n 38→// # Job Events\n 39→//\n 40→// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n 41→//\n 42→//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n 43→//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n 44→//\n 45→// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n 46→//\n 47→// Example job start message:\n 48→//\n 49→//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n 50→//\n 51→// # Node State Events\n 52→//\n 53→// Node state updates use the \"nodestate\" measurement with cluster information:\n 54→//\n 55→//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n 56→//\n 57→// The JSON payload follows the UpdateNodeStatesRequest structure.\n 58→//\n 59→// Example node state message:\n 60→//\n 61→//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\n 62→type NatsAPI struct {\n 63→\tJobRepository *repository.JobRepository\n 64→\t// RepositoryMutex protects job creation operations from race conditions\n 65→\t// when checking for duplicate jobs during startJob calls.\n 66→\tRepositoryMutex sync.Mutex\n 67→}\n 68→\n 69→// NewNatsAPI creates a new NatsAPI instance with default dependencies.\n 70→func NewNatsAPI() *NatsAPI {\n 71→\treturn &NatsAPI{\n 72→\t\tJobRepository: repository.GetJobRepository(),\n 73→\t}\n 74→}\n 75→\n 76→// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n 77→// Returns an error if the NATS client is not available or subscription fails.\n 78→func (api *NatsAPI) StartSubscriptions() error {\n 79→\tclient := nats.GetClient()\n 80→\tif client == nil {\n 81→\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n 82→\t\treturn nil\n 83→\t}\n 84→\n 85→\tif config.Keys.APISubjects != nil {\n 86→\n 87→\t\ts := config.Keys.APISubjects\n 88→\n 89→\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n 90→\t\t\treturn err\n 91→\t\t}\n 92→\n 93→\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n 94→\t\t\treturn err\n 95→\t\t}\n 96→\n 97→\t\tcclog.Info(\"NATS API subscriptions started\")\n 98→\t}\n 99→\treturn nil\n 100→}\n 101→\n 102→// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n 103→// Validates that required tags and fields are present before processing.\n 104→func (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n 105→\tfunction, ok := msg.GetTag(\"function\")\n 106→\tif !ok {\n 107→\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n 108→\t\treturn\n 109→\t}\n 110→\n 111→\tswitch function {\n 112→\tcase \"start_job\":\n 113→\t\tv, ok := msg.GetEventValue()\n 114→\t\tif !ok {\n 115→\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n 116→\t\t\treturn\n 117→\t\t}\n 118→\t\tapi.handleStartJob(v)\n 119→\n 120→\tcase \"stop_job\":\n 121→\t\tv, ok := msg.GetEventValue()\n 122→\t\tif !ok {\n 123→\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n 124→\t\t\treturn\n 125→\t\t}\n 126→\t\tapi.handleStopJob(v)\n 127→\n 128→\tdefault:\n 129→\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n 130→\t}\n 131→}\n 132→\n 133→// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n 134→// The message must be in line protocol format with measurement=\"job\" and include:\n 135→// - tag \"function\" with value \"start_job\" or \"stop_job\"\n 136→// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n 137→//\n 138→// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\n 139→func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n 140→\tif len(data) == 0 {\n 141→\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n 142→\t\treturn\n 143→\t}\n 144→\n 145→\td := influx.NewDecoderWithBytes(data)\n 146→\n 147→\tfor d.Next() {\n 148→\t\tm, err := receivers.DecodeInfluxMessage(d)\n 149→\t\tif err != nil {\n 150→\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n 151→\t\t\treturn\n 152→\t\t}\n 153→\n 154→\t\tif !m.IsEvent() {\n 155→\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n 156→\t\t\tcontinue\n 157→\t\t}\n 158→\n 159→\t\tif m.Name() == \"job\" {\n 160→\t\t\tapi.processJobEvent(m)\n 161→\t\t} else {\n 162→\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n 163→\t\t}\n 164→\t}\n 165→}\n 166→\n 167→// handleStartJob processes job start messages received via NATS.\n 168→// The payload parameter contains JSON following the schema.Job structure.\n 169→// Jobs are validated, checked for duplicates, and inserted into the database.\n 170→func (api *NatsAPI) handleStartJob(payload string) {\n 171→\tif payload == \"\" {\n 172→\t\tcclog.Error(\"NATS start job: payload is empty\")\n 173→\t\treturn\n 174→\t}\n 175→\treq := schema.Job{\n 176→\t\tShared: \"none\",\n 177→\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n 178→\t}\n 179→\n 180→\tdec := json.NewDecoder(strings.NewReader(payload))\n 181→\tdec.DisallowUnknownFields()\n 182→\tif err := dec.Decode(&req); err != nil {\n 183→\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n 184→\t\treturn\n 185→\t}\n 186→\n 187→\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n 188→\treq.State = schema.JobStateRunning\n 189→\n 190→\tif err := importer.SanityChecks(&req); err != nil {\n 191→\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n 192→\t\treturn\n 193→\t}\n 194→\n 195→\tvar unlockOnce sync.Once\n 196→\tapi.RepositoryMutex.Lock()\n 197→\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n 198→\n 199→\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n 200→\tif err != nil && err != sql.ErrNoRows {\n 201→\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n 202→\t\treturn\n 203→\t}\n 204→\tif err == nil {\n 205→\t\tfor _, job := range jobs {\n 206→\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n 207→\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n 208→\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n 209→\t\t\t\treturn\n 210→\t\t\t}\n 211→\t\t}\n 212→\t}\n 213→\n 214→\t// When tags are present, insert directly into the job table so that the\n 215→\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n 216→\tvar id int64\n 217→\tif len(req.Tags) > 0 {\n 218→\t\tid, err = api.JobRepository.StartDirect(&req)\n 219→\t} else {\n 220→\t\tid, err = api.JobRepository.Start(&req)\n 221→\t}\n 222→\tif err != nil {\n 223→\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n 224→\t\treturn\n 225→\t}\n 226→\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n 227→\n 228→\tfor _, tag := range req.Tags {\n 229→\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n 230→\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n 231→\t\t\treturn\n 232→\t\t}\n 233→\t}\n 234→\n 235→\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n 236→\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n 237→}\n 238→\n 239→// handleStopJob processes job stop messages received via NATS.\n 240→// The payload parameter contains JSON following the StopJobAPIRequest structure.\n 241→// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\n 242→func (api *NatsAPI) handleStopJob(payload string) {\n 243→\tif payload == \"\" {\n 244→\t\tcclog.Error(\"NATS stop job: payload is empty\")\n 245→\t\treturn\n 246→\t}\n 247→\tvar req StopJobAPIRequest\n 248→\n 249→\tdec := json.NewDecoder(strings.NewReader(payload))\n 250→\tdec.DisallowUnknownFields()\n 251→\tif err := dec.Decode(&req); err != nil {\n 252→\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n 253→\t\treturn\n 254→\t}\n 255→\n 256→\tif req.JobID == nil {\n 257→\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n 258→\t\treturn\n 259→\t}\n 260→\n 261→\tisCached := false\n 262→\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n 263→\tif err != nil {\n 264→\t\t// Not in cache, try main job table\n 265→\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n 266→\t\tif err != nil {\n 267→\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n 268→\t\t\treturn\n 269→\t\t}\n 270→\t} else {\n 271→\t\tisCached = true\n 272→\t}\n 273→\n 274→\tif job.State != schema.JobStateRunning {\n 275→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n 276→\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n 277→\t\treturn\n 278→\t}\n 279→\n 280→\tif job.StartTime > req.StopTime {\n 281→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n 282→\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n 283→\t\treturn\n 284→\t}\n 285→\n 286→\tif req.State != \"\" && !req.State.Valid() {\n 287→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n 288→\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n 289→\t\treturn\n 290→\t} else if req.State == \"\" {\n 291→\t\treq.State = schema.JobStateCompleted\n 292→\t}\n 293→\n 294→\tjob.Duration = int32(req.StopTime - job.StartTime)\n 295→\tjob.State = req.State\n 296→\tapi.JobRepository.Mutex.Lock()\n 297→\tdefer api.JobRepository.Mutex.Unlock()\n 298→\n 299→\t// If the job is still in job_cache, transfer it to the job table first\n 300→\tif isCached {\n 301→\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n 302→\t\tif err != nil {\n 303→\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n 304→\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n 305→\t\t\treturn\n 306→\t\t}\n 307→\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n 308→\t\tjob.ID = &newID\n 309→\t}\n 310→\n 311→\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n 312→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n 313→\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n 314→\t\treturn\n 315→\t}\n 316→\n 317→\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n 318→\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n 319→\n 320→\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n 321→\t\treturn\n 322→\t}\n 323→\n 324→\tarchiver.TriggerArchiving(job)\n 325→}\n 326→\n 327→// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n 328→// Updates node states in the repository for all nodes in the payload.\n 329→func (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n 330→\tv, ok := msg.GetEventValue()\n 331→\tif !ok {\n 332→\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n 333→\t\treturn\n 334→\t}\n 335→\n 336→\tvar req UpdateNodeStatesRequest\n 337→\n 338→\tdec := json.NewDecoder(strings.NewReader(v))\n 339→\tdec.DisallowUnknownFields()\n 340→\tif err := dec.Decode(&req); err != nil {\n 341→\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n 342→\t\treturn\n 343→\t}\n 344→\n 345→\trepo := repository.GetNodeRepository()\n 346→\trequestReceived := time.Now().Unix()\n 347→\n 348→\tfor _, node := range req.Nodes {\n 349→\t\tstate := determineState(node.States)\n 350→\t\tnodeState := schema.NodeStateDB{\n 351→\t\t\tTimeStamp: requestReceived,\n 352→\t\t\tNodeState: state,\n 353→\t\t\tCpusAllocated: node.CpusAllocated,\n 354→\t\t\tMemoryAllocated: node.MemoryAllocated,\n 355→\t\t\tGpusAllocated: node.GpusAllocated,\n 356→\t\t\tHealthState: schema.MonitoringStateFull,\n 357→\t\t\tJobsRunning: node.JobsRunning,\n 358→\t\t}\n 359→\n 360→\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n 361→\t\t\tcclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",\n 362→\t\t\t\tnode.Hostname, req.Cluster, err)\n 363→\t\t}\n 364→\t}\n 365→\n 366→\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n 367→}\n 368→\n 369→// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n 370→// The message must be in line protocol format with measurement=\"nodestate\" and include:\n 371→// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n 372→//\n 373→// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\n 374→func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n 375→\tif len(data) == 0 {\n 376→\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n 377→\t\treturn\n 378→\t}\n 379→\n 380→\td := influx.NewDecoderWithBytes(data)\n 381→\n 382→\tfor d.Next() {\n 383→\t\tm, err := receivers.DecodeInfluxMessage(d)\n 384→\t\tif err != nil {\n 385→\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n 386→\t\t\treturn\n 387→\t\t}\n 388→\n 389→\t\tif !m.IsEvent() {\n 390→\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n 391→\t\t\tcontinue\n 392→\t\t}\n 393→\n 394→\t\tif m.Name() == \"nodestate\" {\n 395→\t\t\tapi.processNodestateEvent(m)\n 396→\t\t} else {\n 397→\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n 398→\t\t}\n 399→\t}\n 400→}\n 401→"}]},"uuid":"186dcc55-1ec7-4336-abee-c9a5e56c2a8f","timestamp":"2026-03-16T10:12:41.400Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n// It mirrors the functionality of the REST API but uses NATS messaging with\n// InfluxDB line protocol as the message format.\n//\n// # Message Format\n//\n// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n// with the following structure:\n//\n//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n//\n// # Job Events\n//\n// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n//\n//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n//\n// Example job start message:\n//\n//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n//\n// # Node State Events\n//\n// Node state updates use the \"nodestate\" measurement with cluster information:\n//\n//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload follows the UpdateNodeStatesRequest structure.\n//\n// Example node state message:\n//\n//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\ntype NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t}\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Returns an error if the NATS client is not available or subscription fails.\nfunc (api *NatsAPI) StartSubscriptions() error {\n\tclient := nats.GetClient()\n\tif client == nil {\n\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n\t\treturn nil\n\t}\n\n\tif config.Keys.APISubjects != nil {\n\n\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}\n\treturn nil\n}\n\n// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n// Validates that required tags and fields are present before processing.\nfunc (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n\tfunction, ok := msg.GetTag(\"function\")\n\tif !ok {\n\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n\t\treturn\n\t}\n\n\tswitch function {\n\tcase \"start_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStartJob(v)\n\n\tcase \"stop_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStopJob(v)\n\n\tdefault:\n\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n\t}\n}\n\n// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"job\" and include:\n// - tag \"function\" with value \"start_job\" or \"stop_job\"\n// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n//\n// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\nfunc (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"job\" {\n\t\t\tapi.processJobEvent(m)\n\t\t} else {\n\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n\t\t}\n\t}\n}\n\n// handleStartJob processes job start messages received via NATS.\n// The payload parameter contains JSON following the schema.Job structure.\n// Jobs are validated, checked for duplicates, and inserted into the database.\nfunc (api *NatsAPI) handleStartJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS start job: payload is empty\")\n\t\treturn\n\t}\n\treq := schema.Job{\n\t\tShared: \"none\",\n\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n\t}\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n\treq.State = schema.JobStateRunning\n\n\tif err := importer.SanityChecks(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n\t\treturn\n\t}\n\n\tvar unlockOnce sync.Once\n\tapi.RepositoryMutex.Lock()\n\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n\t\treturn\n\t}\n\tif err == nil {\n\t\tfor _, job := range jobs {\n\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\t}\n\n\t// When tags are present, insert directly into the job table so that the\n\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n\tvar id int64\n\tif len(req.Tags) > 0 {\n\t\tid, err = api.JobRepository.StartDirect(&req)\n\t} else {\n\t\tid, err = api.JobRepository.Start(&req)\n\t}\n\tif err != nil {\n\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n\t\treturn\n\t}\n\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tfor _, tag := range req.Tags {\n\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n\t\t\treturn\n\t\t}\n\t}\n\n\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n}\n\n// handleStopJob processes job stop messages received via NATS.\n// The payload parameter contains JSON following the StopJobAPIRequest structure.\n// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\nfunc (api *NatsAPI) handleStopJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS stop job: payload is empty\")\n\t\treturn\n\t}\n\tvar req StopJobAPIRequest\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tif req.JobID == nil {\n\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n\t\treturn\n\t}\n\n\tisCached := false\n\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n\tif err != nil {\n\t\t// Not in cache, try main job table\n\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n\t\t\treturn\n\t\t}\n\t} else {\n\t\tisCached = true\n\t}\n\n\tif job.State != schema.JobStateRunning {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n\t\treturn\n\t}\n\n\tif job.StartTime > req.StopTime {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n\t\treturn\n\t}\n\n\tif req.State != \"\" && !req.State.Valid() {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n\t\treturn\n\t} else if req.State == \"\" {\n\t\treq.State = schema.JobStateCompleted\n\t}\n\n\tjob.Duration = int32(req.StopTime - job.StartTime)\n\tjob.State = req.State\n\tapi.JobRepository.Mutex.Lock()\n\tdefer api.JobRepository.Mutex.Unlock()\n\n\t// If the job is still in job_cache, transfer it to the job table first\n\tif isCached {\n\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n\t\t\treturn\n\t\t}\n\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n\t\tjob.ID = &newID\n\t}\n\n\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n\n\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n\t\treturn\n\t}\n\n\tarchiver.TriggerArchiving(job)\n}\n\n// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n// Updates node states in the repository for all nodes in the payload.\nfunc (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n\tv, ok := msg.GetEventValue()\n\tif !ok {\n\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n\t\treturn\n\t}\n\n\tvar req UpdateNodeStatesRequest\n\n\tdec := json.NewDecoder(strings.NewReader(v))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n}\n\n// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"nodestate\" and include:\n// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n//\n// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\nfunc (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"nodestate\" {\n\t\t\tapi.processNodestateEvent(m)\n\t\t} else {\n\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n\t\t}\n\t}\n}\n","numLines":401,"startLine":1,"totalLines":401}},"sourceToolAssistantUUID":"c8d3f293-f0a4-4c69-a19e-1f7a97d640ab","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"186dcc55-1ec7-4336-abee-c9a5e56c2a8f","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_014TL3pbSWBVr2pivAjUxp1C","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/node.go"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"2778e110-6ad8-4f0f-901e-a221ad5b2824","timestamp":"2026-03-16T10:12:41.836Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"2778e110-6ad8-4f0f-901e-a221ad5b2824","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_014TL3pbSWBVr2pivAjUxp1C","toolUseID":"toolu_014TL3pbSWBVr2pivAjUxp1C","timestamp":"2026-03-16T10:12:41.843Z","uuid":"9129b1db-0ee2-467a-9ec9-212b396d1bb4","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"2778e110-6ad8-4f0f-901e-a221ad5b2824","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_014TL3pbSWBVr2pivAjUxp1C","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package api\n 7→\n 8→import (\n 9→\t\"fmt\"\n 10→\t\"maps\"\n 11→\t\"net/http\"\n 12→\t\"strings\"\n 13→\t\"time\"\n 14→\n 15→\t\"github.com/ClusterCockpit/cc-backend/internal/metricdispatch\"\n 16→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n 17→\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n 18→\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n 19→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 20→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 21→)\n 22→\n 23→type UpdateNodeStatesRequest struct {\n 24→\tNodes []schema.NodePayload `json:\"nodes\"`\n 25→\tCluster string `json:\"cluster\" example:\"fritz\"`\n 26→}\n 27→\n 28→// metricListToNames converts a map of metric configurations to a list of metric names\n 29→func metricListToNames(metricList map[string]*schema.Metric) []string {\n 30→\tnames := make([]string, 0, len(metricList))\n 31→\tfor name := range metricList {\n 32→\t\tnames = append(names, name)\n 33→\t}\n 34→\treturn names\n 35→}\n 36→\n 37→// this routine assumes that only one of them exists per node\n 38→func determineState(states []string) schema.SchedulerState {\n 39→\tfor _, state := range states {\n 40→\t\tswitch strings.ToLower(state) {\n 41→\t\tcase \"allocated\":\n 42→\t\t\treturn schema.NodeStateAllocated\n 43→\t\tcase \"reserved\":\n 44→\t\t\treturn schema.NodeStateReserved\n 45→\t\tcase \"idle\":\n 46→\t\t\treturn schema.NodeStateIdle\n 47→\t\tcase \"down\":\n 48→\t\t\treturn schema.NodeStateDown\n 49→\t\tcase \"mixed\":\n 50→\t\t\treturn schema.NodeStateMixed\n 51→\t\t}\n 52→\t}\n 53→\n 54→\treturn schema.NodeStateUnknown\n 55→}\n 56→\n 57→// updateNodeStates godoc\n 58→// @summary Deliver updated Slurm node states\n 59→// @tags Nodestates\n 60→// @description Returns a JSON-encoded list of users.\n 61→// @description Required query-parameter defines if all users or only users with additional special roles are returned.\n 62→// @produce json\n 63→// @param request body UpdateNodeStatesRequest true \"Request body containing nodes and their states\"\n 64→// @success 200 {object} api.DefaultAPIResponse \"Success message\"\n 65→// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n 66→// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n 67→// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n 68→// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n 69→// @security ApiKeyAuth\n 70→// @router /api/nodestats/ [post]\n 71→func (api *RestAPI) updateNodeStates(rw http.ResponseWriter, r *http.Request) {\n 72→\t// Parse request body\n 73→\treq := UpdateNodeStatesRequest{}\n 74→\tif err := decode(r.Body, &req); err != nil {\n 75→\t\thandleError(fmt.Errorf(\"parsing request body failed: %w\", err),\n 76→\t\t\thttp.StatusBadRequest, rw)\n 77→\t\treturn\n 78→\t}\n 79→\trequestReceived := time.Now().Unix()\n 80→\trepo := repository.GetNodeRepository()\n 81→\n 82→\tm := make(map[string][]string)\n 83→\tmetricNames := make(map[string][]string)\n 84→\thealthResults := make(map[string]metricstore.HealthCheckResult)\n 85→\n 86→\tstartMs := time.Now()\n 87→\n 88→\t// Step 1: Build nodeList and metricList per subcluster\n 89→\tfor _, node := range req.Nodes {\n 90→\t\tif sc, err := archive.GetSubClusterByNode(req.Cluster, node.Hostname); err == nil {\n 91→\t\t\tm[sc] = append(m[sc], node.Hostname)\n 92→\t\t}\n 93→\t}\n 94→\n 95→\tfor sc := range m {\n 96→\t\tif sc != \"\" {\n 97→\t\t\tmetricList := archive.GetMetricConfigSubCluster(req.Cluster, sc)\n 98→\t\t\tmetricNames[sc] = metricListToNames(metricList)\n 99→\t\t}\n 100→\t}\n 101→\n 102→\t// Step 2: Determine which metric store to query and perform health check\n 103→\thealthRepo, err := metricdispatch.GetHealthCheckRepo(req.Cluster)\n 104→\tif err != nil {\n 105→\t\tcclog.Warnf(\"updateNodeStates: no metric store for cluster %s, skipping health check: %v\", req.Cluster, err)\n 106→\t} else {\n 107→\t\tfor sc, nl := range m {\n 108→\t\t\tif sc != \"\" {\n 109→\t\t\t\tif results, err := healthRepo.HealthCheck(req.Cluster, nl, metricNames[sc]); err == nil {\n 110→\t\t\t\t\tmaps.Copy(healthResults, results)\n 111→\t\t\t\t}\n 112→\t\t\t}\n 113→\t\t}\n 114→\t}\n 115→\n 116→\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n 117→\tstartDB := time.Now()\n 118→\n 119→\tfor _, node := range req.Nodes {\n 120→\t\tstate := determineState(node.States)\n 121→\t\thealthState := schema.MonitoringStateFailed\n 122→\t\tvar healthMetrics string\n 123→\t\tif result, ok := healthResults[node.Hostname]; ok {\n 124→\t\t\thealthState = result.State\n 125→\t\t\thealthMetrics = result.HealthMetrics\n 126→\t\t}\n 127→\t\tnodeState := schema.NodeStateDB{\n 128→\t\t\tTimeStamp: requestReceived,\n 129→\t\t\tNodeState: state,\n 130→\t\t\tCpusAllocated: node.CpusAllocated,\n 131→\t\t\tMemoryAllocated: node.MemoryAllocated,\n 132→\t\t\tGpusAllocated: node.GpusAllocated,\n 133→\t\t\tHealthState: healthState,\n 134→\t\t\tHealthMetrics: healthMetrics,\n 135→\t\t\tJobsRunning: node.JobsRunning,\n 136→\t\t}\n 137→\n 138→\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n 139→\t\t\tcclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",\n 140→\t\t\t\tnode.Hostname, req.Cluster, err)\n 141→\t\t}\n 142→\t}\n 143→\n 144→\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))\n 145→}\n 146→"}]},"uuid":"78f555f7-8f16-44fa-b61b-ca0e4f57eefa","timestamp":"2026-03-16T10:12:41.842Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/node.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"fmt\"\n\t\"maps\"\n\t\"net/http\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/metricdispatch\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n)\n\ntype UpdateNodeStatesRequest struct {\n\tNodes []schema.NodePayload `json:\"nodes\"`\n\tCluster string `json:\"cluster\" example:\"fritz\"`\n}\n\n// metricListToNames converts a map of metric configurations to a list of metric names\nfunc metricListToNames(metricList map[string]*schema.Metric) []string {\n\tnames := make([]string, 0, len(metricList))\n\tfor name := range metricList {\n\t\tnames = append(names, name)\n\t}\n\treturn names\n}\n\n// this routine assumes that only one of them exists per node\nfunc determineState(states []string) schema.SchedulerState {\n\tfor _, state := range states {\n\t\tswitch strings.ToLower(state) {\n\t\tcase \"allocated\":\n\t\t\treturn schema.NodeStateAllocated\n\t\tcase \"reserved\":\n\t\t\treturn schema.NodeStateReserved\n\t\tcase \"idle\":\n\t\t\treturn schema.NodeStateIdle\n\t\tcase \"down\":\n\t\t\treturn schema.NodeStateDown\n\t\tcase \"mixed\":\n\t\t\treturn schema.NodeStateMixed\n\t\t}\n\t}\n\n\treturn schema.NodeStateUnknown\n}\n\n// updateNodeStates godoc\n// @summary Deliver updated Slurm node states\n// @tags Nodestates\n// @description Returns a JSON-encoded list of users.\n// @description Required query-parameter defines if all users or only users with additional special roles are returned.\n// @produce json\n// @param request body UpdateNodeStatesRequest true \"Request body containing nodes and their states\"\n// @success 200 {object} api.DefaultAPIResponse \"Success message\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /api/nodestats/ [post]\nfunc (api *RestAPI) updateNodeStates(rw http.ResponseWriter, r *http.Request) {\n\t// Parse request body\n\treq := UpdateNodeStatesRequest{}\n\tif err := decode(r.Body, &req); err != nil {\n\t\thandleError(fmt.Errorf(\"parsing request body failed: %w\", err),\n\t\t\thttp.StatusBadRequest, rw)\n\t\treturn\n\t}\n\trequestReceived := time.Now().Unix()\n\trepo := repository.GetNodeRepository()\n\n\tm := make(map[string][]string)\n\tmetricNames := make(map[string][]string)\n\thealthResults := make(map[string]metricstore.HealthCheckResult)\n\n\tstartMs := time.Now()\n\n\t// Step 1: Build nodeList and metricList per subcluster\n\tfor _, node := range req.Nodes {\n\t\tif sc, err := archive.GetSubClusterByNode(req.Cluster, node.Hostname); err == nil {\n\t\t\tm[sc] = append(m[sc], node.Hostname)\n\t\t}\n\t}\n\n\tfor sc := range m {\n\t\tif sc != \"\" {\n\t\t\tmetricList := archive.GetMetricConfigSubCluster(req.Cluster, sc)\n\t\t\tmetricNames[sc] = metricListToNames(metricList)\n\t\t}\n\t}\n\n\t// Step 2: Determine which metric store to query and perform health check\n\thealthRepo, err := metricdispatch.GetHealthCheckRepo(req.Cluster)\n\tif err != nil {\n\t\tcclog.Warnf(\"updateNodeStates: no metric store for cluster %s, skipping health check: %v\", req.Cluster, err)\n\t} else {\n\t\tfor sc, nl := range m {\n\t\t\tif sc != \"\" {\n\t\t\t\tif results, err := healthRepo.HealthCheck(req.Cluster, nl, metricNames[sc]); err == nil {\n\t\t\t\t\tmaps.Copy(healthResults, results)\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))\n}\n","numLines":146,"startLine":1,"totalLines":146}},"sourceToolAssistantUUID":"2778e110-6ad8-4f0f-901e-a221ad5b2824","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"78f555f7-8f16-44fa-b61b-ca0e4f57eefa","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Q8R3VBJ6od6rSRpjL3B86T","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01QZn1z7o6wW6qHVFPQ63xir","name":"Read","input":{"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/user.go"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":3,"cache_creation_input_tokens":5523,"cache_read_input_tokens":14298,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":5523},"output_tokens":9,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adHXaxDthZgwNXUB4V","type":"assistant","uuid":"ab33adee-9926-4c38-af68-7a0b5d885ff8","timestamp":"2026-03-16T10:12:42.245Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"ab33adee-9926-4c38-af68-7a0b5d885ff8","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01QZn1z7o6wW6qHVFPQ63xir","toolUseID":"toolu_01QZn1z7o6wW6qHVFPQ63xir","timestamp":"2026-03-16T10:12:42.250Z","uuid":"8ec2b218-0906-411c-a125-b9d46a9cbf93","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"ab33adee-9926-4c38-af68-7a0b5d885ff8","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01QZn1z7o6wW6qHVFPQ63xir","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→package repository\n 6→\n 7→import (\n 8→\t\"context\"\n 9→\t\"database/sql\"\n 10→\t\"encoding/json\"\n 11→\t\"errors\"\n 12→\t\"fmt\"\n 13→\t\"reflect\"\n 14→\t\"strings\"\n 15→\t\"sync\"\n 16→\n 17→\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n 18→\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n 19→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 20→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 21→\tsq \"github.com/Masterminds/squirrel\"\n 22→\t\"github.com/jmoiron/sqlx\"\n 23→\t\"golang.org/x/crypto/bcrypt\"\n 24→)\n 25→\n 26→// Authentication and Role System:\n 27→//\n 28→// ClusterCockpit supports multiple authentication sources:\n 29→// - Local: Username/password stored in database (password hashed with bcrypt)\n 30→// - LDAP: External LDAP/Active Directory authentication\n 31→// - JWT: Token-based authentication for API access\n 32→//\n 33→// Role Hierarchy (from highest to lowest privilege):\n 34→// 1. \"admin\" - Full system access, can manage all users and jobs\n 35→// 2. \"support\" - Can view all jobs but limited management capabilities\n 36→// 3. \"manager\" - Can manage specific projects and their users\n 37→// 4. \"api\" - Programmatic access for job submission/management\n 38→// 5. \"user\" - Default role, can only view own jobs\n 39→//\n 40→// Project Association:\n 41→// - Managers have a list of projects they oversee\n 42→// - Regular users' project membership is determined by job data\n 43→// - Managers can view/manage all jobs within their projects\n 44→\n 45→var (\n 46→\tuserRepoOnce sync.Once\n 47→\tuserRepoInstance *UserRepository\n 48→)\n 49→\n 50→type UserRepository struct {\n 51→\tDB *sqlx.DB\n 52→\tdriver string\n 53→}\n 54→\n 55→func GetUserRepository() *UserRepository {\n 56→\tuserRepoOnce.Do(func() {\n 57→\t\tdb := GetConnection()\n 58→\n 59→\t\tuserRepoInstance = &UserRepository{\n 60→\t\t\tDB: db.DB,\n 61→\t\t\tdriver: db.Driver,\n 62→\t\t}\n 63→\t})\n 64→\treturn userRepoInstance\n 65→}\n 66→\n 67→// GetUser retrieves a user by username from the database.\n 68→// Returns the complete user record including hashed password, roles, and projects.\n 69→// Password field contains bcrypt hash for local auth users, empty for LDAP users.\n 70→func (r *UserRepository) GetUser(username string) (*schema.User, error) {\n 71→\tuser := &schema.User{Username: username}\n 72→\tvar hashedPassword, name, rawRoles, email, rawProjects sql.NullString\n 73→\tif err := sq.Select(\"password\", \"ldap\", \"name\", \"roles\", \"email\", \"projects\").From(\"hpc_user\").\n 74→\t\tWhere(\"hpc_user.username = ?\", username).RunWith(r.DB).\n 75→\t\tQueryRow().Scan(&hashedPassword, &user.AuthSource, &name, &rawRoles, &email, &rawProjects); err != nil {\n 76→\t\tcclog.Warnf(\"Error while querying user '%v' from database\", username)\n 77→\t\treturn nil, err\n 78→\t}\n 79→\n 80→\tuser.Password = hashedPassword.String\n 81→\tuser.Name = name.String\n 82→\tuser.Email = email.String\n 83→\tif rawRoles.Valid {\n 84→\t\tif err := json.Unmarshal([]byte(rawRoles.String), &user.Roles); err != nil {\n 85→\t\t\tcclog.Warn(\"Error while unmarshaling raw roles from DB\")\n 86→\t\t\treturn nil, err\n 87→\t\t}\n 88→\t}\n 89→\tif rawProjects.Valid {\n 90→\t\tif err := json.Unmarshal([]byte(rawProjects.String), &user.Projects); err != nil {\n 91→\t\t\treturn nil, err\n 92→\t\t}\n 93→\t}\n 94→\n 95→\treturn user, nil\n 96→}\n 97→\n 98→func (r *UserRepository) GetLdapUsernames() ([]string, error) {\n 99→\tvar users []string\n 100→\trows, err := r.DB.Query(`SELECT username FROM hpc_user WHERE hpc_user.ldap = 1`)\n 101→\tif err != nil {\n 102→\t\tcclog.Warn(\"Error while querying usernames\")\n 103→\t\treturn nil, err\n 104→\t}\n 105→\tdefer rows.Close()\n 106→\n 107→\tfor rows.Next() {\n 108→\t\tvar username string\n 109→\t\tif err := rows.Scan(&username); err != nil {\n 110→\t\t\tcclog.Warnf(\"Error while scanning for user '%s'\", username)\n 111→\t\t\treturn nil, err\n 112→\t\t}\n 113→\n 114→\t\tusers = append(users, username)\n 115→\t}\n 116→\n 117→\treturn users, nil\n 118→}\n 119→\n 120→// AddUser creates a new user in the database.\n 121→// Passwords are automatically hashed with bcrypt before storage.\n 122→// Auth source determines authentication method (local, LDAP, etc.).\n 123→//\n 124→// Required fields: Username, Roles\n 125→// Optional fields: Name, Email, Password, Projects, AuthSource\n 126→func (r *UserRepository) AddUser(user *schema.User) error {\n 127→\trolesJson, _ := json.Marshal(user.Roles)\n 128→\tprojectsJson, _ := json.Marshal(user.Projects)\n 129→\n 130→\tcols := []string{\"username\", \"roles\", \"projects\"}\n 131→\tvals := []any{user.Username, string(rolesJson), string(projectsJson)}\n 132→\n 133→\tif user.Name != \"\" {\n 134→\t\tcols = append(cols, \"name\")\n 135→\t\tvals = append(vals, user.Name)\n 136→\t}\n 137→\tif user.Email != \"\" {\n 138→\t\tcols = append(cols, \"email\")\n 139→\t\tvals = append(vals, user.Email)\n 140→\t}\n 141→\tif user.Password != \"\" {\n 142→\t\tpassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)\n 143→\t\tif err != nil {\n 144→\t\t\tcclog.Error(\"Error while encrypting new user password\")\n 145→\t\t\treturn err\n 146→\t\t}\n 147→\t\tcols = append(cols, \"password\")\n 148→\t\tvals = append(vals, string(password))\n 149→\t}\n 150→\tif user.AuthSource != -1 {\n 151→\t\tcols = append(cols, \"ldap\")\n 152→\t\tvals = append(vals, int(user.AuthSource))\n 153→\t}\n 154→\n 155→\tif _, err := sq.Insert(\"hpc_user\").Columns(cols...).Values(vals...).RunWith(r.DB).Exec(); err != nil {\n 156→\t\tcclog.Errorf(\"Error while inserting new user '%v' into DB\", user.Username)\n 157→\t\treturn err\n 158→\t}\n 159→\n 160→\tcclog.Infof(\"new user %#v created (roles: %s, auth-source: %d, projects: %s)\", user.Username, rolesJson, user.AuthSource, projectsJson)\n 161→\n 162→\t// DEPRECATED: SUPERSEDED BY NEW USER CONFIG - userConfig.go / web.go\n 163→\tdefaultMetricsCfg, err := config.LoadDefaultMetricsConfig()\n 164→\tif err != nil {\n 165→\t\tcclog.Errorf(\"Error loading default metrics config: %v\", err)\n 166→\t} else if defaultMetricsCfg != nil {\n 167→\t\tfor _, cluster := range defaultMetricsCfg.Clusters {\n 168→\t\t\tmetricsArray := config.ParseMetricsString(cluster.DefaultMetrics)\n 169→\t\t\tmetricsJSON, err := json.Marshal(metricsArray)\n 170→\t\t\tif err != nil {\n 171→\t\t\t\tcclog.Errorf(\"Error marshaling default metrics for cluster %s: %v\", cluster.Name, err)\n 172→\t\t\t\tcontinue\n 173→\t\t\t}\n 174→\t\t\t// Note: StatisticsTable now has different key (metricConfig_jobViewTableMetrics): Not updated here.\n 175→\t\t\tconfKey := \"metricConfig_jobViewPlotMetrics:\" + cluster.Name\n 176→\t\t\tif _, err := sq.Insert(\"configuration\").\n 177→\t\t\t\tColumns(\"username\", \"confkey\", \"value\").\n 178→\t\t\t\tValues(user.Username, confKey, string(metricsJSON)).\n 179→\t\t\t\tRunWith(r.DB).Exec(); err != nil {\n 180→\t\t\t\tcclog.Errorf(\"Error inserting default job view metrics for user %s and cluster %s: %v\", user.Username, cluster.Name, err)\n 181→\t\t\t} else {\n 182→\t\t\t\tcclog.Infof(\"Default job view metrics for user %s and cluster %s set to %s\", user.Username, cluster.Name, string(metricsJSON))\n 183→\t\t\t}\n 184→\t\t}\n 185→\t}\n 186→\t// END DEPRECATION\n 187→\n 188→\treturn nil\n 189→}\n 190→\n 191→func (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {\n 192→\t// user contains updated info -> Apply to dbUser\n 193→\t// --- Simple Name Update ---\n 194→\tif dbUser.Name != user.Name {\n 195→\t\tif _, err := sq.Update(\"hpc_user\").Set(\"name\", user.Name).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec(); err != nil {\n 196→\t\t\tcclog.Errorf(\"error while updating name of user '%s'\", user.Username)\n 197→\t\t\treturn err\n 198→\t\t}\n 199→\t}\n 200→\n 201→\t// --- Def Helpers ---\n 202→\t// Helper to update roles\n 203→\tupdateRoles := func(roles []string) error {\n 204→\t\trolesJSON, _ := json.Marshal(roles)\n 205→\t\t_, err := sq.Update(\"hpc_user\").Set(\"roles\", rolesJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n 206→\t\treturn err\n 207→\t}\n 208→\n 209→\t// Helper to update projects\n 210→\tupdateProjects := func(projects []string) error {\n 211→\t\tprojectsJSON, _ := json.Marshal(projects)\n 212→\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", projectsJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n 213→\t\treturn err\n 214→\t}\n 215→\n 216→\t// Helper to clear projects\n 217→\tclearProjects := func() error {\n 218→\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", \"[]\").Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n 219→\t\treturn err\n 220→\t}\n 221→\n 222→\t// --- Manager Role Handling ---\n 223→\tif dbUser.HasRole(schema.RoleManager) && user.HasRole(schema.RoleManager) && !reflect.DeepEqual(dbUser.Projects, user.Projects) {\n 224→\t\t// Existing Manager: update projects\n 225→\t\tif err := updateProjects(user.Projects); err != nil {\n 226→\t\t\treturn err\n 227→\t\t}\n 228→\t} else if dbUser.HasRole(schema.RoleUser) && user.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n 229→\t\t// New Manager: update roles and projects\n 230→\t\tif err := updateRoles(user.Roles); err != nil {\n 231→\t\t\treturn err\n 232→\t\t}\n 233→\t\tif err := updateProjects(user.Projects); err != nil {\n 234→\t\t\treturn err\n 235→\t\t}\n 236→\t} else if dbUser.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleManager}) {\n 237→\t\t// Remove Manager: update roles and clear projects\n 238→\t\tif err := updateRoles(user.Roles); err != nil {\n 239→\t\t\treturn err\n 240→\t\t}\n 241→\t\tif err := clearProjects(); err != nil {\n 242→\t\t\treturn err\n 243→\t\t}\n 244→\t}\n 245→\n 246→\t// --- Support Role Handling ---\n 247→\tif dbUser.HasRole(schema.RoleUser) && dbUser.HasNotRoles([]schema.Role{schema.RoleSupport}) &&\n 248→\t\tuser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n 249→\t\t// New Support: update roles\n 250→\t\tif err := updateRoles(user.Roles); err != nil {\n 251→\t\t\treturn err\n 252→\t\t}\n 253→\t} else if dbUser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport}) {\n 254→\t\t// Remove Support: update roles\n 255→\t\tif err := updateRoles(user.Roles); err != nil {\n 256→\t\t\treturn err\n 257→\t\t}\n 258→\t}\n 259→\n 260→\treturn nil\n 261→}\n 262→\n 263→func (r *UserRepository) DelUser(username string) error {\n 264→\t_, err := r.DB.Exec(`DELETE FROM hpc_user WHERE hpc_user.username = ?`, username)\n 265→\tif err != nil {\n 266→\t\tcclog.Errorf(\"Error while deleting user '%s' from DB\", username)\n 267→\t\treturn err\n 268→\t}\n 269→\tcclog.Infof(\"deleted user '%s' from DB\", username)\n 270→\treturn nil\n 271→}\n 272→\n 273→func (r *UserRepository) ListUsers(specialsOnly bool) ([]*schema.User, error) {\n 274→\tq := sq.Select(\"username\", \"name\", \"email\", \"roles\", \"projects\").From(\"hpc_user\")\n 275→\tif specialsOnly {\n 276→\t\tq = q.Where(\"(roles != '[\\\"user\\\"]' AND roles != '[]')\")\n 277→\t}\n 278→\n 279→\trows, err := q.RunWith(r.DB).Query()\n 280→\tif err != nil {\n 281→\t\tcclog.Warn(\"Error while querying user list\")\n 282→\t\treturn nil, err\n 283→\t}\n 284→\n 285→\tusers := make([]*schema.User, 0)\n 286→\tdefer rows.Close()\n 287→\tfor rows.Next() {\n 288→\t\trawroles := \"\"\n 289→\t\trawprojects := \"\"\n 290→\t\tuser := &schema.User{}\n 291→\t\tvar name, email sql.NullString\n 292→\t\tif err := rows.Scan(&user.Username, &name, &email, &rawroles, &rawprojects); err != nil {\n 293→\t\t\tcclog.Warn(\"Error while scanning user list\")\n 294→\t\t\treturn nil, err\n 295→\t\t}\n 296→\n 297→\t\tif err := json.Unmarshal([]byte(rawroles), &user.Roles); err != nil {\n 298→\t\t\tcclog.Warn(\"Error while unmarshaling raw role list\")\n 299→\t\t\treturn nil, err\n 300→\t\t}\n 301→\n 302→\t\tif err := json.Unmarshal([]byte(rawprojects), &user.Projects); err != nil {\n 303→\t\t\treturn nil, err\n 304→\t\t}\n 305→\n 306→\t\tuser.Name = name.String\n 307→\t\tuser.Email = email.String\n 308→\t\tusers = append(users, user)\n 309→\t}\n 310→\treturn users, nil\n 311→}\n 312→\n 313→// AddRole adds a role to a user's role list.\n 314→// Role string is automatically lowercased.\n 315→// Valid roles: admin, support, manager, api, user\n 316→//\n 317→// Returns error if:\n 318→// - User doesn't exist\n 319→// - Role is invalid\n 320→// - User already has the role\n 321→func (r *UserRepository) AddRole(\n 322→\tctx context.Context,\n 323→\tusername string,\n 324→\tqueryrole string,\n 325→) error {\n 326→\tnewRole := strings.ToLower(queryrole)\n 327→\tuser, err := r.GetUser(username)\n 328→\tif err != nil {\n 329→\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n 330→\t\treturn err\n 331→\t}\n 332→\n 333→\texists, valid := user.HasValidRole(newRole)\n 334→\n 335→\tif !valid {\n 336→\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", newRole)\n 337→\t}\n 338→\tif exists {\n 339→\t\treturn fmt.Errorf(\"user %v already has role %v\", username, newRole)\n 340→\t}\n 341→\n 342→\troles, _ := json.Marshal(append(user.Roles, newRole))\n 343→\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", roles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n 344→\t\tcclog.Errorf(\"error while adding new role for user '%s'\", user.Username)\n 345→\t\treturn err\n 346→\t}\n 347→\treturn nil\n 348→}\n 349→\n 350→// RemoveRole removes a role from a user's role list.\n 351→//\n 352→// Special rules:\n 353→// - Cannot remove \"manager\" role while user has assigned projects\n 354→// - Must remove all projects first before removing manager role\n 355→func (r *UserRepository) RemoveRole(ctx context.Context, username string, queryrole string) error {\n 356→\toldRole := strings.ToLower(queryrole)\n 357→\tuser, err := r.GetUser(username)\n 358→\tif err != nil {\n 359→\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n 360→\t\treturn err\n 361→\t}\n 362→\n 363→\texists, valid := user.HasValidRole(oldRole)\n 364→\n 365→\tif !valid {\n 366→\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", oldRole)\n 367→\t}\n 368→\tif !exists {\n 369→\t\treturn fmt.Errorf(\"role already deleted for user '%v': %v\", username, oldRole)\n 370→\t}\n 371→\n 372→\tif oldRole == schema.GetRoleString(schema.RoleManager) && len(user.Projects) != 0 {\n 373→\t\treturn fmt.Errorf(\"cannot remove role 'manager' while user %s still has assigned project(s) : %v\", username, user.Projects)\n 374→\t}\n 375→\n 376→\tvar newroles []string\n 377→\tfor _, r := range user.Roles {\n 378→\t\tif r != oldRole {\n 379→\t\t\tnewroles = append(newroles, r) // Append all roles not matching requested to be deleted role\n 380→\t\t}\n 381→\t}\n 382→\n 383→\tmroles, _ := json.Marshal(newroles)\n 384→\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", mroles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n 385→\t\tcclog.Errorf(\"Error while removing role for user '%s'\", user.Username)\n 386→\t\treturn err\n 387→\t}\n 388→\treturn nil\n 389→}\n 390→\n 391→// AddProject assigns a project to a manager user.\n 392→// Only users with the \"manager\" role can have assigned projects.\n 393→//\n 394→// Returns error if:\n 395→// - User doesn't have manager role\n 396→// - User already manages the project\n 397→func (r *UserRepository) AddProject(\n 398→\tctx context.Context,\n 399→\tusername string,\n 400→\tproject string,\n 401→) error {\n 402→\tuser, err := r.GetUser(username)\n 403→\tif err != nil {\n 404→\t\treturn err\n 405→\t}\n 406→\n 407→\tif !user.HasRole(schema.RoleManager) {\n 408→\t\treturn fmt.Errorf(\"user '%s' is not a manager\", username)\n 409→\t}\n 410→\n 411→\tif user.HasProject(project) {\n 412→\t\treturn fmt.Errorf(\"user '%s' already manages project '%s'\", username, project)\n 413→\t}\n 414→\n 415→\tprojects, _ := json.Marshal(append(user.Projects, project))\n 416→\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", projects).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n 417→\t\treturn err\n 418→\t}\n 419→\n 420→\treturn nil\n 421→}\n 422→\n 423→func (r *UserRepository) RemoveProject(ctx context.Context, username string, project string) error {\n 424→\tuser, err := r.GetUser(username)\n 425→\tif err != nil {\n 426→\t\treturn err\n 427→\t}\n 428→\n 429→\tif !user.HasRole(schema.RoleManager) {\n 430→\t\treturn fmt.Errorf(\"user '%#v' is not a manager\", username)\n 431→\t}\n 432→\n 433→\tif !user.HasProject(project) {\n 434→\t\treturn fmt.Errorf(\"user '%#v': Cannot remove project '%#v' - Does not match\", username, project)\n 435→\t}\n 436→\n 437→\tvar exists bool\n 438→\tvar newprojects []string\n 439→\tfor _, p := range user.Projects {\n 440→\t\tif p != project {\n 441→\t\t\tnewprojects = append(newprojects, p) // Append all projects not matching requested to be deleted project\n 442→\t\t} else {\n 443→\t\t\texists = true\n 444→\t\t}\n 445→\t}\n 446→\n 447→\tif exists {\n 448→\t\tvar result any\n 449→\t\tif len(newprojects) == 0 {\n 450→\t\t\tresult = \"[]\"\n 451→\t\t} else {\n 452→\t\t\tresult, _ = json.Marshal(newprojects)\n 453→\t\t}\n 454→\t\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", result).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n 455→\t\t\treturn err\n 456→\t\t}\n 457→\t\treturn nil\n 458→\t} else {\n 459→\t\treturn fmt.Errorf(\"user %s already does not manage project %s\", username, project)\n 460→\t}\n 461→}\n 462→\n 463→type ContextKey string\n 464→\n 465→const ContextUserKey ContextKey = \"user\"\n 466→\n 467→func GetUserFromContext(ctx context.Context) *schema.User {\n 468→\tx := ctx.Value(ContextUserKey)\n 469→\tif x == nil {\n 470→\t\tcclog.Warnf(\"no user retrieved from context\")\n 471→\t\treturn nil\n 472→\t}\n 473→\t// cclog.Infof(\"user retrieved from context: %v\", x.(*schema.User))\n 474→\treturn x.(*schema.User)\n 475→}\n 476→\n 477→func (r *UserRepository) FetchUserInCtx(ctx context.Context, username string) (*model.User, error) {\n 478→\tme := GetUserFromContext(ctx)\n 479→\tif me != nil && me.Username != username &&\n 480→\t\tme.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport, schema.RoleManager}) {\n 481→\t\treturn nil, errors.New(\"forbidden\")\n 482→\t}\n 483→\n 484→\tuser := &model.User{Username: username}\n 485→\tvar name, email sql.NullString\n 486→\tif err := sq.Select(\"name\", \"email\").From(\"hpc_user\").Where(\"hpc_user.username = ?\", username).\n 487→\t\tRunWith(r.DB).QueryRow().Scan(&name, &email); err != nil {\n 488→\t\tif err == sql.ErrNoRows {\n 489→\t\t\t/* This warning will be logged *often* for non-local users, i.e. users mentioned only in job-table or archive, */\n 490→\t\t\t/* since FetchUser will be called to retrieve full name and mail for every job in query/list\t\t\t\t\t\t\t\t\t */\n 491→\t\t\t// cclog.Warnf(\"User '%s' Not found in DB\", username)\n 492→\t\t\treturn nil, nil\n 493→\t\t}\n 494→\n 495→\t\tcclog.Warnf(\"Error while fetching user '%s'\", username)\n 496→\t\treturn nil, err\n 497→\t}\n 498→\n 499→\tuser.Name = name.String\n 500→\tuser.Email = email.String\n 501→\treturn user, nil\n 502→}\n 503→"}]},"uuid":"26e7307a-8d39-4350-a911-4c4d39002d8f","timestamp":"2026-03-16T10:12:42.250Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/user.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\npackage repository\n\nimport (\n\t\"context\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"errors\"\n\t\"fmt\"\n\t\"reflect\"\n\t\"strings\"\n\t\"sync\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n\t\"github.com/jmoiron/sqlx\"\n\t\"golang.org/x/crypto/bcrypt\"\n)\n\n// Authentication and Role System:\n//\n// ClusterCockpit supports multiple authentication sources:\n// - Local: Username/password stored in database (password hashed with bcrypt)\n// - LDAP: External LDAP/Active Directory authentication\n// - JWT: Token-based authentication for API access\n//\n// Role Hierarchy (from highest to lowest privilege):\n// 1. \"admin\" - Full system access, can manage all users and jobs\n// 2. \"support\" - Can view all jobs but limited management capabilities\n// 3. \"manager\" - Can manage specific projects and their users\n// 4. \"api\" - Programmatic access for job submission/management\n// 5. \"user\" - Default role, can only view own jobs\n//\n// Project Association:\n// - Managers have a list of projects they oversee\n// - Regular users' project membership is determined by job data\n// - Managers can view/manage all jobs within their projects\n\nvar (\n\tuserRepoOnce sync.Once\n\tuserRepoInstance *UserRepository\n)\n\ntype UserRepository struct {\n\tDB *sqlx.DB\n\tdriver string\n}\n\nfunc GetUserRepository() *UserRepository {\n\tuserRepoOnce.Do(func() {\n\t\tdb := GetConnection()\n\n\t\tuserRepoInstance = &UserRepository{\n\t\t\tDB: db.DB,\n\t\t\tdriver: db.Driver,\n\t\t}\n\t})\n\treturn userRepoInstance\n}\n\n// GetUser retrieves a user by username from the database.\n// Returns the complete user record including hashed password, roles, and projects.\n// Password field contains bcrypt hash for local auth users, empty for LDAP users.\nfunc (r *UserRepository) GetUser(username string) (*schema.User, error) {\n\tuser := &schema.User{Username: username}\n\tvar hashedPassword, name, rawRoles, email, rawProjects sql.NullString\n\tif err := sq.Select(\"password\", \"ldap\", \"name\", \"roles\", \"email\", \"projects\").From(\"hpc_user\").\n\t\tWhere(\"hpc_user.username = ?\", username).RunWith(r.DB).\n\t\tQueryRow().Scan(&hashedPassword, &user.AuthSource, &name, &rawRoles, &email, &rawProjects); err != nil {\n\t\tcclog.Warnf(\"Error while querying user '%v' from database\", username)\n\t\treturn nil, err\n\t}\n\n\tuser.Password = hashedPassword.String\n\tuser.Name = name.String\n\tuser.Email = email.String\n\tif rawRoles.Valid {\n\t\tif err := json.Unmarshal([]byte(rawRoles.String), &user.Roles); err != nil {\n\t\t\tcclog.Warn(\"Error while unmarshaling raw roles from DB\")\n\t\t\treturn nil, err\n\t\t}\n\t}\n\tif rawProjects.Valid {\n\t\tif err := json.Unmarshal([]byte(rawProjects.String), &user.Projects); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\t}\n\n\treturn user, nil\n}\n\nfunc (r *UserRepository) GetLdapUsernames() ([]string, error) {\n\tvar users []string\n\trows, err := r.DB.Query(`SELECT username FROM hpc_user WHERE hpc_user.ldap = 1`)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying usernames\")\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar username string\n\t\tif err := rows.Scan(&username); err != nil {\n\t\t\tcclog.Warnf(\"Error while scanning for user '%s'\", username)\n\t\t\treturn nil, err\n\t\t}\n\n\t\tusers = append(users, username)\n\t}\n\n\treturn users, nil\n}\n\n// AddUser creates a new user in the database.\n// Passwords are automatically hashed with bcrypt before storage.\n// Auth source determines authentication method (local, LDAP, etc.).\n//\n// Required fields: Username, Roles\n// Optional fields: Name, Email, Password, Projects, AuthSource\nfunc (r *UserRepository) AddUser(user *schema.User) error {\n\trolesJson, _ := json.Marshal(user.Roles)\n\tprojectsJson, _ := json.Marshal(user.Projects)\n\n\tcols := []string{\"username\", \"roles\", \"projects\"}\n\tvals := []any{user.Username, string(rolesJson), string(projectsJson)}\n\n\tif user.Name != \"\" {\n\t\tcols = append(cols, \"name\")\n\t\tvals = append(vals, user.Name)\n\t}\n\tif user.Email != \"\" {\n\t\tcols = append(cols, \"email\")\n\t\tvals = append(vals, user.Email)\n\t}\n\tif user.Password != \"\" {\n\t\tpassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)\n\t\tif err != nil {\n\t\t\tcclog.Error(\"Error while encrypting new user password\")\n\t\t\treturn err\n\t\t}\n\t\tcols = append(cols, \"password\")\n\t\tvals = append(vals, string(password))\n\t}\n\tif user.AuthSource != -1 {\n\t\tcols = append(cols, \"ldap\")\n\t\tvals = append(vals, int(user.AuthSource))\n\t}\n\n\tif _, err := sq.Insert(\"hpc_user\").Columns(cols...).Values(vals...).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"Error while inserting new user '%v' into DB\", user.Username)\n\t\treturn err\n\t}\n\n\tcclog.Infof(\"new user %#v created (roles: %s, auth-source: %d, projects: %s)\", user.Username, rolesJson, user.AuthSource, projectsJson)\n\n\t// DEPRECATED: SUPERSEDED BY NEW USER CONFIG - userConfig.go / web.go\n\tdefaultMetricsCfg, err := config.LoadDefaultMetricsConfig()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error loading default metrics config: %v\", err)\n\t} else if defaultMetricsCfg != nil {\n\t\tfor _, cluster := range defaultMetricsCfg.Clusters {\n\t\t\tmetricsArray := config.ParseMetricsString(cluster.DefaultMetrics)\n\t\t\tmetricsJSON, err := json.Marshal(metricsArray)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error marshaling default metrics for cluster %s: %v\", cluster.Name, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\t// Note: StatisticsTable now has different key (metricConfig_jobViewTableMetrics): Not updated here.\n\t\t\tconfKey := \"metricConfig_jobViewPlotMetrics:\" + cluster.Name\n\t\t\tif _, err := sq.Insert(\"configuration\").\n\t\t\t\tColumns(\"username\", \"confkey\", \"value\").\n\t\t\t\tValues(user.Username, confKey, string(metricsJSON)).\n\t\t\t\tRunWith(r.DB).Exec(); err != nil {\n\t\t\t\tcclog.Errorf(\"Error inserting default job view metrics for user %s and cluster %s: %v\", user.Username, cluster.Name, err)\n\t\t\t} else {\n\t\t\t\tcclog.Infof(\"Default job view metrics for user %s and cluster %s set to %s\", user.Username, cluster.Name, string(metricsJSON))\n\t\t\t}\n\t\t}\n\t}\n\t// END DEPRECATION\n\n\treturn nil\n}\n\nfunc (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {\n\t// user contains updated info -> Apply to dbUser\n\t// --- Simple Name Update ---\n\tif dbUser.Name != user.Name {\n\t\tif _, err := sq.Update(\"hpc_user\").Set(\"name\", user.Name).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec(); err != nil {\n\t\t\tcclog.Errorf(\"error while updating name of user '%s'\", user.Username)\n\t\t\treturn err\n\t\t}\n\t}\n\n\t// --- Def Helpers ---\n\t// Helper to update roles\n\tupdateRoles := func(roles []string) error {\n\t\trolesJSON, _ := json.Marshal(roles)\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"roles\", rolesJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// Helper to update projects\n\tupdateProjects := func(projects []string) error {\n\t\tprojectsJSON, _ := json.Marshal(projects)\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", projectsJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// Helper to clear projects\n\tclearProjects := func() error {\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", \"[]\").Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// --- Manager Role Handling ---\n\tif dbUser.HasRole(schema.RoleManager) && user.HasRole(schema.RoleManager) && !reflect.DeepEqual(dbUser.Projects, user.Projects) {\n\t\t// Existing Manager: update projects\n\t\tif err := updateProjects(user.Projects); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleUser) && user.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n\t\t// New Manager: update roles and projects\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif err := updateProjects(user.Projects); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleManager}) {\n\t\t// Remove Manager: update roles and clear projects\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif err := clearProjects(); err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\t// --- Support Role Handling ---\n\tif dbUser.HasRole(schema.RoleUser) && dbUser.HasNotRoles([]schema.Role{schema.RoleSupport}) &&\n\t\tuser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n\t\t// New Support: update roles\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport}) {\n\t\t// Remove Support: update roles\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (r *UserRepository) DelUser(username string) error {\n\t_, err := r.DB.Exec(`DELETE FROM hpc_user WHERE hpc_user.username = ?`, username)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while deleting user '%s' from DB\", username)\n\t\treturn err\n\t}\n\tcclog.Infof(\"deleted user '%s' from DB\", username)\n\treturn nil\n}\n\nfunc (r *UserRepository) ListUsers(specialsOnly bool) ([]*schema.User, error) {\n\tq := sq.Select(\"username\", \"name\", \"email\", \"roles\", \"projects\").From(\"hpc_user\")\n\tif specialsOnly {\n\t\tq = q.Where(\"(roles != '[\\\"user\\\"]' AND roles != '[]')\")\n\t}\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying user list\")\n\t\treturn nil, err\n\t}\n\n\tusers := make([]*schema.User, 0)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\trawroles := \"\"\n\t\trawprojects := \"\"\n\t\tuser := &schema.User{}\n\t\tvar name, email sql.NullString\n\t\tif err := rows.Scan(&user.Username, &name, &email, &rawroles, &rawprojects); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning user list\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif err := json.Unmarshal([]byte(rawroles), &user.Roles); err != nil {\n\t\t\tcclog.Warn(\"Error while unmarshaling raw role list\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif err := json.Unmarshal([]byte(rawprojects), &user.Projects); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\n\t\tuser.Name = name.String\n\t\tuser.Email = email.String\n\t\tusers = append(users, user)\n\t}\n\treturn users, nil\n}\n\n// AddRole adds a role to a user's role list.\n// Role string is automatically lowercased.\n// Valid roles: admin, support, manager, api, user\n//\n// Returns error if:\n// - User doesn't exist\n// - Role is invalid\n// - User already has the role\nfunc (r *UserRepository) AddRole(\n\tctx context.Context,\n\tusername string,\n\tqueryrole string,\n) error {\n\tnewRole := strings.ToLower(queryrole)\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n\t\treturn err\n\t}\n\n\texists, valid := user.HasValidRole(newRole)\n\n\tif !valid {\n\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", newRole)\n\t}\n\tif exists {\n\t\treturn fmt.Errorf(\"user %v already has role %v\", username, newRole)\n\t}\n\n\troles, _ := json.Marshal(append(user.Roles, newRole))\n\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", roles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"error while adding new role for user '%s'\", user.Username)\n\t\treturn err\n\t}\n\treturn nil\n}\n\n// RemoveRole removes a role from a user's role list.\n//\n// Special rules:\n// - Cannot remove \"manager\" role while user has assigned projects\n// - Must remove all projects first before removing manager role\nfunc (r *UserRepository) RemoveRole(ctx context.Context, username string, queryrole string) error {\n\toldRole := strings.ToLower(queryrole)\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n\t\treturn err\n\t}\n\n\texists, valid := user.HasValidRole(oldRole)\n\n\tif !valid {\n\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", oldRole)\n\t}\n\tif !exists {\n\t\treturn fmt.Errorf(\"role already deleted for user '%v': %v\", username, oldRole)\n\t}\n\n\tif oldRole == schema.GetRoleString(schema.RoleManager) && len(user.Projects) != 0 {\n\t\treturn fmt.Errorf(\"cannot remove role 'manager' while user %s still has assigned project(s) : %v\", username, user.Projects)\n\t}\n\n\tvar newroles []string\n\tfor _, r := range user.Roles {\n\t\tif r != oldRole {\n\t\t\tnewroles = append(newroles, r) // Append all roles not matching requested to be deleted role\n\t\t}\n\t}\n\n\tmroles, _ := json.Marshal(newroles)\n\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", mroles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"Error while removing role for user '%s'\", user.Username)\n\t\treturn err\n\t}\n\treturn nil\n}\n\n// AddProject assigns a project to a manager user.\n// Only users with the \"manager\" role can have assigned projects.\n//\n// Returns error if:\n// - User doesn't have manager role\n// - User already manages the project\nfunc (r *UserRepository) AddProject(\n\tctx context.Context,\n\tusername string,\n\tproject string,\n) error {\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif !user.HasRole(schema.RoleManager) {\n\t\treturn fmt.Errorf(\"user '%s' is not a manager\", username)\n\t}\n\n\tif user.HasProject(project) {\n\t\treturn fmt.Errorf(\"user '%s' already manages project '%s'\", username, project)\n\t}\n\n\tprojects, _ := json.Marshal(append(user.Projects, project))\n\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", projects).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (r *UserRepository) RemoveProject(ctx context.Context, username string, project string) error {\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif !user.HasRole(schema.RoleManager) {\n\t\treturn fmt.Errorf(\"user '%#v' is not a manager\", username)\n\t}\n\n\tif !user.HasProject(project) {\n\t\treturn fmt.Errorf(\"user '%#v': Cannot remove project '%#v' - Does not match\", username, project)\n\t}\n\n\tvar exists bool\n\tvar newprojects []string\n\tfor _, p := range user.Projects {\n\t\tif p != project {\n\t\t\tnewprojects = append(newprojects, p) // Append all projects not matching requested to be deleted project\n\t\t} else {\n\t\t\texists = true\n\t\t}\n\t}\n\n\tif exists {\n\t\tvar result any\n\t\tif len(newprojects) == 0 {\n\t\t\tresult = \"[]\"\n\t\t} else {\n\t\t\tresult, _ = json.Marshal(newprojects)\n\t\t}\n\t\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", result).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\t\treturn err\n\t\t}\n\t\treturn nil\n\t} else {\n\t\treturn fmt.Errorf(\"user %s already does not manage project %s\", username, project)\n\t}\n}\n\ntype ContextKey string\n\nconst ContextUserKey ContextKey = \"user\"\n\nfunc GetUserFromContext(ctx context.Context) *schema.User {\n\tx := ctx.Value(ContextUserKey)\n\tif x == nil {\n\t\tcclog.Warnf(\"no user retrieved from context\")\n\t\treturn nil\n\t}\n\t// cclog.Infof(\"user retrieved from context: %v\", x.(*schema.User))\n\treturn x.(*schema.User)\n}\n\nfunc (r *UserRepository) FetchUserInCtx(ctx context.Context, username string) (*model.User, error) {\n\tme := GetUserFromContext(ctx)\n\tif me != nil && me.Username != username &&\n\t\tme.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport, schema.RoleManager}) {\n\t\treturn nil, errors.New(\"forbidden\")\n\t}\n\n\tuser := &model.User{Username: username}\n\tvar name, email sql.NullString\n\tif err := sq.Select(\"name\", \"email\").From(\"hpc_user\").Where(\"hpc_user.username = ?\", username).\n\t\tRunWith(r.DB).QueryRow().Scan(&name, &email); err != nil {\n\t\tif err == sql.ErrNoRows {\n\t\t\t/* This warning will be logged *often* for non-local users, i.e. users mentioned only in job-table or archive, */\n\t\t\t/* since FetchUser will be called to retrieve full name and mail for every job in query/list\t\t\t\t\t\t\t\t\t */\n\t\t\t// cclog.Warnf(\"User '%s' Not found in DB\", username)\n\t\t\treturn nil, nil\n\t\t}\n\n\t\tcclog.Warnf(\"Error while fetching user '%s'\", username)\n\t\treturn nil, err\n\t}\n\n\tuser.Name = name.String\n\tuser.Email = email.String\n\treturn user, nil\n}\n","numLines":503,"startLine":1,"totalLines":503}},"sourceToolAssistantUUID":"ab33adee-9926-4c38-af68-7a0b5d885ff8","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"794d5b22-e6b4-461a-8b60-f67f3e47e371","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01ScKNjBXsx7mQEXVVigVhmt","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package auth\n 7→\n 8→import (\n 9→\t\"fmt\"\n 10→\t\"net\"\n 11→\t\"net/http\"\n 12→\t\"os\"\n 13→\t\"strings\"\n 14→\t\"time\"\n 15→\n 16→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n 17→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 18→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 19→\t\"github.com/go-ldap/ldap/v3\"\n 20→)\n 21→\n 22→type LdapConfig struct {\n 23→\tURL string `json:\"url\"`\n 24→\tUserBase string `json:\"user-base\"`\n 25→\tSearchDN string `json:\"search-dn\"`\n 26→\tUserBind string `json:\"user-bind\"`\n 27→\tUserFilter string `json:\"user-filter\"`\n 28→\tUserAttr string `json:\"username-attr\"`\n 29→\tUIDAttr string `json:\"uid-attr\"`\n 30→\tSyncInterval string `json:\"sync-interval\"` // Parsed using time.ParseDuration.\n 31→\tSyncDelOldUsers bool `json:\"sync-del-old-users\"`\n 32→\n 33→\t// Should a non-existent user be added to the DB if user exists in ldap directory\n 34→\tSyncUserOnLogin bool `json:\"sync-user-on-login\"`\n 35→\tUpdateUserOnLogin bool `json:\"update-user-on-login\"`\n 36→}\n 37→\n 38→type LdapAuthenticator struct {\n 39→\tsyncPassword string\n 40→\tUserAttr string\n 41→\tUIDAttr string\n 42→}\n 43→\n 44→var _ Authenticator = (*LdapAuthenticator)(nil)\n 45→\n 46→func (la *LdapAuthenticator) Init() error {\n 47→\tla.syncPassword = os.Getenv(\"LDAP_ADMIN_PASSWORD\")\n 48→\tif la.syncPassword == \"\" {\n 49→\t\tcclog.Warn(\"environment variable 'LDAP_ADMIN_PASSWORD' not set (ldap sync will not work)\")\n 50→\t}\n 51→\n 52→\tif Keys.LdapConfig.UserAttr != \"\" {\n 53→\t\tla.UserAttr = Keys.LdapConfig.UserAttr\n 54→\t} else {\n 55→\t\tla.UserAttr = \"gecos\"\n 56→\t}\n 57→\n 58→\tif Keys.LdapConfig.UIDAttr != \"\" {\n 59→\t\tla.UIDAttr = Keys.LdapConfig.UIDAttr\n 60→\t} else {\n 61→\t\tla.UIDAttr = \"uid\"\n 62→\t}\n 63→\n 64→\treturn nil\n 65→}\n 66→\n 67→func (la *LdapAuthenticator) CanLogin(\n 68→\tuser *schema.User,\n 69→\tusername string,\n 70→\trw http.ResponseWriter,\n 71→\tr *http.Request,\n 72→) (*schema.User, bool) {\n 73→\tlc := Keys.LdapConfig\n 74→\n 75→\tif user != nil {\n 76→\t\tif user.AuthSource == schema.AuthViaLDAP {\n 77→\t\t\treturn user, true\n 78→\t\t}\n 79→\t} else if lc.SyncUserOnLogin {\n 80→\t\tl, err := la.getLdapConnection(true)\n 81→\t\tif err != nil {\n 82→\t\t\tcclog.Error(\"LDAP connection error\")\n 83→\t\t\treturn nil, false\n 84→\t\t}\n 85→\t\tdefer l.Close()\n 86→\n 87→\t\t// Search for the given username\n 88→\t\tsearchRequest := ldap.NewSearchRequest(\n 89→\t\t\tlc.UserBase,\n 90→\t\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n 91→\t\t\tfmt.Sprintf(\"(&%s(%s=%s))\", lc.UserFilter, la.UIDAttr, ldap.EscapeFilter(username)),\n 92→\t\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil)\n 93→\n 94→\t\tsr, err := l.Search(searchRequest)\n 95→\t\tif err != nil {\n 96→\t\t\tcclog.Warn(err)\n 97→\t\t\treturn nil, false\n 98→\t\t}\n 99→\n 100→\t\tif len(sr.Entries) != 1 {\n 101→\t\t\tcclog.Warn(\"LDAP: User does not exist or too many entries returned\")\n 102→\t\t\treturn nil, false\n 103→\t\t}\n 104→\n 105→\t\tentry := sr.Entries[0]\n 106→\t\tuser = &schema.User{\n 107→\t\t\tUsername: username,\n 108→\t\t\tName: entry.GetAttributeValue(la.UserAttr),\n 109→\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n 110→\t\t\tProjects: make([]string, 0),\n 111→\t\t\tAuthType: schema.AuthSession,\n 112→\t\t\tAuthSource: schema.AuthViaLDAP,\n 113→\t\t}\n 114→\n 115→\t\thandleLdapUser(user)\n 116→\t\treturn user, true\n 117→\t}\n 118→\n 119→\treturn nil, false\n 120→}\n 121→\n 122→func (la *LdapAuthenticator) Login(\n 123→\tuser *schema.User,\n 124→\trw http.ResponseWriter,\n 125→\tr *http.Request,\n 126→) (*schema.User, error) {\n 127→\tl, err := la.getLdapConnection(false)\n 128→\tif err != nil {\n 129→\t\tcclog.Warn(\"Error while getting ldap connection\")\n 130→\t\treturn nil, err\n 131→\t}\n 132→\tdefer l.Close()\n 133→\n 134→\tuserDn := strings.ReplaceAll(Keys.LdapConfig.UserBind, \"{username}\", ldap.EscapeDN(user.Username))\n 135→\tif err := l.Bind(userDn, r.FormValue(\"password\")); err != nil {\n 136→\t\tcclog.Errorf(\"AUTH/LDAP > Authentication for user %s failed: %v\",\n 137→\t\t\tuser.Username, err)\n 138→\t\treturn nil, fmt.Errorf(\"Authentication failed\")\n 139→\t}\n 140→\n 141→\treturn user, nil\n 142→}\n 143→\n 144→func (la *LdapAuthenticator) Sync() error {\n 145→\tconst InDB int = 1\n 146→\tconst InLdap int = 2\n 147→\tconst InBoth int = 3\n 148→\tur := repository.GetUserRepository()\n 149→\tlc := Keys.LdapConfig\n 150→\n 151→\tusers := map[string]int{}\n 152→\tusernames, err := ur.GetLdapUsernames()\n 153→\tif err != nil {\n 154→\t\treturn err\n 155→\t}\n 156→\n 157→\tfor _, username := range usernames {\n 158→\t\tusers[username] = InDB\n 159→\t}\n 160→\n 161→\tl, err := la.getLdapConnection(true)\n 162→\tif err != nil {\n 163→\t\tcclog.Error(\"LDAP connection error\")\n 164→\t\treturn err\n 165→\t}\n 166→\tdefer l.Close()\n 167→\n 168→\tldapResults, err := l.Search(ldap.NewSearchRequest(\n 169→\t\tlc.UserBase,\n 170→\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n 171→\t\tlc.UserFilter,\n 172→\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil))\n 173→\tif err != nil {\n 174→\t\tcclog.Warn(\"LDAP search error\")\n 175→\t\treturn err\n 176→\t}\n 177→\n 178→\tnewnames := map[string]string{}\n 179→\tfor _, entry := range ldapResults.Entries {\n 180→\t\tusername := entry.GetAttributeValue(la.UIDAttr)\n 181→\t\tif username == \"\" {\n 182→\t\t\treturn fmt.Errorf(\"no attribute '%s'\", la.UIDAttr)\n 183→\t\t}\n 184→\n 185→\t\t_, ok := users[username]\n 186→\t\tif !ok {\n 187→\t\t\tusers[username] = InLdap\n 188→\t\t\tnewnames[username] = entry.GetAttributeValue(la.UserAttr)\n 189→\t\t} else {\n 190→\t\t\tusers[username] = InBoth\n 191→\t\t}\n 192→\t}\n 193→\n 194→\tfor username, where := range users {\n 195→\t\tif where == InDB && lc.SyncDelOldUsers {\n 196→\t\t\tif err := ur.DelUser(username); err != nil {\n 197→\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Delete from DB failed: %v\", username, err)\n 198→\t\t\t\treturn err\n 199→\t\t\t}\n 200→\t\t\tcclog.Debugf(\"sync: remove %v (does not show up in LDAP anymore)\", username)\n 201→\t\t} else if where == InLdap {\n 202→\t\t\tname := newnames[username]\n 203→\n 204→\t\t\tuser := &schema.User{\n 205→\t\t\t\tUsername: username,\n 206→\t\t\t\tName: name,\n 207→\t\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n 208→\t\t\t\tProjects: make([]string, 0),\n 209→\t\t\t\tAuthSource: schema.AuthViaLDAP,\n 210→\t\t\t}\n 211→\n 212→\t\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n 213→\t\t\tif err := ur.AddUser(user); err != nil {\n 214→\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n 215→\t\t\t\treturn err\n 216→\t\t\t}\n 217→\t\t}\n 218→\t}\n 219→\n 220→\treturn nil\n 221→}\n 222→\n 223→func (la *LdapAuthenticator) getLdapConnection(admin bool) (*ldap.Conn, error) {\n 224→\tlc := Keys.LdapConfig\n 225→\tconn, err := ldap.DialURL(lc.URL,\n 226→\t\tldap.DialWithDialer(&net.Dialer{Timeout: 10 * time.Second}))\n 227→\tif err != nil {\n 228→\t\tcclog.Warn(\"LDAP URL dial failed\")\n 229→\t\treturn nil, err\n 230→\t}\n 231→\tconn.SetTimeout(30 * time.Second)\n 232→\n 233→\tif admin {\n 234→\t\tif err := conn.Bind(lc.SearchDN, la.syncPassword); err != nil {\n 235→\t\t\tconn.Close()\n 236→\t\t\tcclog.Warn(\"LDAP connection bind failed\")\n 237→\t\t\treturn nil, err\n 238→\t\t}\n 239→\t}\n 240→\n 241→\treturn conn, nil\n 242→}\n 243→"}]},"uuid":"88e19298-997f-4e34-93a8-9b98c3bbbe57","timestamp":"2026-03-16T10:12:42.716Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/auth/ldap.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage auth\n\nimport (\n\t\"fmt\"\n\t\"net\"\n\t\"net/http\"\n\t\"os\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/go-ldap/ldap/v3\"\n)\n\ntype LdapConfig struct {\n\tURL string `json:\"url\"`\n\tUserBase string `json:\"user-base\"`\n\tSearchDN string `json:\"search-dn\"`\n\tUserBind string `json:\"user-bind\"`\n\tUserFilter string `json:\"user-filter\"`\n\tUserAttr string `json:\"username-attr\"`\n\tUIDAttr string `json:\"uid-attr\"`\n\tSyncInterval string `json:\"sync-interval\"` // Parsed using time.ParseDuration.\n\tSyncDelOldUsers bool `json:\"sync-del-old-users\"`\n\n\t// Should a non-existent user be added to the DB if user exists in ldap directory\n\tSyncUserOnLogin bool `json:\"sync-user-on-login\"`\n\tUpdateUserOnLogin bool `json:\"update-user-on-login\"`\n}\n\ntype LdapAuthenticator struct {\n\tsyncPassword string\n\tUserAttr string\n\tUIDAttr string\n}\n\nvar _ Authenticator = (*LdapAuthenticator)(nil)\n\nfunc (la *LdapAuthenticator) Init() error {\n\tla.syncPassword = os.Getenv(\"LDAP_ADMIN_PASSWORD\")\n\tif la.syncPassword == \"\" {\n\t\tcclog.Warn(\"environment variable 'LDAP_ADMIN_PASSWORD' not set (ldap sync will not work)\")\n\t}\n\n\tif Keys.LdapConfig.UserAttr != \"\" {\n\t\tla.UserAttr = Keys.LdapConfig.UserAttr\n\t} else {\n\t\tla.UserAttr = \"gecos\"\n\t}\n\n\tif Keys.LdapConfig.UIDAttr != \"\" {\n\t\tla.UIDAttr = Keys.LdapConfig.UIDAttr\n\t} else {\n\t\tla.UIDAttr = \"uid\"\n\t}\n\n\treturn nil\n}\n\nfunc (la *LdapAuthenticator) CanLogin(\n\tuser *schema.User,\n\tusername string,\n\trw http.ResponseWriter,\n\tr *http.Request,\n) (*schema.User, bool) {\n\tlc := Keys.LdapConfig\n\n\tif user != nil {\n\t\tif user.AuthSource == schema.AuthViaLDAP {\n\t\t\treturn user, true\n\t\t}\n\t} else if lc.SyncUserOnLogin {\n\t\tl, err := la.getLdapConnection(true)\n\t\tif err != nil {\n\t\t\tcclog.Error(\"LDAP connection error\")\n\t\t\treturn nil, false\n\t\t}\n\t\tdefer l.Close()\n\n\t\t// Search for the given username\n\t\tsearchRequest := ldap.NewSearchRequest(\n\t\t\tlc.UserBase,\n\t\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n\t\t\tfmt.Sprintf(\"(&%s(%s=%s))\", lc.UserFilter, la.UIDAttr, ldap.EscapeFilter(username)),\n\t\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil)\n\n\t\tsr, err := l.Search(searchRequest)\n\t\tif err != nil {\n\t\t\tcclog.Warn(err)\n\t\t\treturn nil, false\n\t\t}\n\n\t\tif len(sr.Entries) != 1 {\n\t\t\tcclog.Warn(\"LDAP: User does not exist or too many entries returned\")\n\t\t\treturn nil, false\n\t\t}\n\n\t\tentry := sr.Entries[0]\n\t\tuser = &schema.User{\n\t\t\tUsername: username,\n\t\t\tName: entry.GetAttributeValue(la.UserAttr),\n\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n\t\t\tProjects: make([]string, 0),\n\t\t\tAuthType: schema.AuthSession,\n\t\t\tAuthSource: schema.AuthViaLDAP,\n\t\t}\n\n\t\thandleLdapUser(user)\n\t\treturn user, true\n\t}\n\n\treturn nil, false\n}\n\nfunc (la *LdapAuthenticator) Login(\n\tuser *schema.User,\n\trw http.ResponseWriter,\n\tr *http.Request,\n) (*schema.User, error) {\n\tl, err := la.getLdapConnection(false)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting ldap connection\")\n\t\treturn nil, err\n\t}\n\tdefer l.Close()\n\n\tuserDn := strings.ReplaceAll(Keys.LdapConfig.UserBind, \"{username}\", ldap.EscapeDN(user.Username))\n\tif err := l.Bind(userDn, r.FormValue(\"password\")); err != nil {\n\t\tcclog.Errorf(\"AUTH/LDAP > Authentication for user %s failed: %v\",\n\t\t\tuser.Username, err)\n\t\treturn nil, fmt.Errorf(\"Authentication failed\")\n\t}\n\n\treturn user, nil\n}\n\nfunc (la *LdapAuthenticator) Sync() error {\n\tconst InDB int = 1\n\tconst InLdap int = 2\n\tconst InBoth int = 3\n\tur := repository.GetUserRepository()\n\tlc := Keys.LdapConfig\n\n\tusers := map[string]int{}\n\tusernames, err := ur.GetLdapUsernames()\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tfor _, username := range usernames {\n\t\tusers[username] = InDB\n\t}\n\n\tl, err := la.getLdapConnection(true)\n\tif err != nil {\n\t\tcclog.Error(\"LDAP connection error\")\n\t\treturn err\n\t}\n\tdefer l.Close()\n\n\tldapResults, err := l.Search(ldap.NewSearchRequest(\n\t\tlc.UserBase,\n\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n\t\tlc.UserFilter,\n\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil))\n\tif err != nil {\n\t\tcclog.Warn(\"LDAP search error\")\n\t\treturn err\n\t}\n\n\tnewnames := map[string]string{}\n\tfor _, entry := range ldapResults.Entries {\n\t\tusername := entry.GetAttributeValue(la.UIDAttr)\n\t\tif username == \"\" {\n\t\t\treturn fmt.Errorf(\"no attribute '%s'\", la.UIDAttr)\n\t\t}\n\n\t\t_, ok := users[username]\n\t\tif !ok {\n\t\t\tusers[username] = InLdap\n\t\t\tnewnames[username] = entry.GetAttributeValue(la.UserAttr)\n\t\t} else {\n\t\t\tusers[username] = InBoth\n\t\t}\n\t}\n\n\tfor username, where := range users {\n\t\tif where == InDB && lc.SyncDelOldUsers {\n\t\t\tif err := ur.DelUser(username); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Delete from DB failed: %v\", username, err)\n\t\t\t\treturn err\n\t\t\t}\n\t\t\tcclog.Debugf(\"sync: remove %v (does not show up in LDAP anymore)\", username)\n\t\t} else if where == InLdap {\n\t\t\tname := newnames[username]\n\n\t\t\tuser := &schema.User{\n\t\t\t\tUsername: username,\n\t\t\t\tName: name,\n\t\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n\t\t\t\tProjects: make([]string, 0),\n\t\t\t\tAuthSource: schema.AuthViaLDAP,\n\t\t\t}\n\n\t\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUser(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (la *LdapAuthenticator) getLdapConnection(admin bool) (*ldap.Conn, error) {\n\tlc := Keys.LdapConfig\n\tconn, err := ldap.DialURL(lc.URL,\n\t\tldap.DialWithDialer(&net.Dialer{Timeout: 10 * time.Second}))\n\tif err != nil {\n\t\tcclog.Warn(\"LDAP URL dial failed\")\n\t\treturn nil, err\n\t}\n\tconn.SetTimeout(30 * time.Second)\n\n\tif admin {\n\t\tif err := conn.Bind(lc.SearchDN, la.syncPassword); err != nil {\n\t\t\tconn.Close()\n\t\t\tcclog.Warn(\"LDAP connection bind failed\")\n\t\t\treturn nil, err\n\t\t}\n\t}\n\n\treturn conn, nil\n}\n","numLines":243,"startLine":1,"totalLines":243}},"sourceToolAssistantUUID":"794d5b22-e6b4-461a-8b60-f67f3e47e371","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"e001baa9-61e4-45ac-b202-53caad8b525f","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01GpAw7qx8NsDwkEM2UaDjvA","toolUseID":"toolu_01GpAw7qx8NsDwkEM2UaDjvA","timestamp":"2026-03-16T10:12:42.900Z","uuid":"45bfe7b4-262d-4568-9253-43644d5ae91f","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"e001baa9-61e4-45ac-b202-53caad8b525f","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01GpAw7qx8NsDwkEM2UaDjvA","type":"tool_result","content":" 1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n 2→// All rights reserved. This file is part of cc-backend.\n 3→// Use of this source code is governed by a MIT-style\n 4→// license that can be found in the LICENSE file.\n 5→\n 6→package repository\n 7→\n 8→import (\n 9→\t\"encoding/json\"\n 10→\t\"fmt\"\n 11→\n 12→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 13→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 14→\tsq \"github.com/Masterminds/squirrel\"\n 15→)\n 16→\n 17→const NamedJobCacheInsert string = `INSERT INTO job_cache (\n 18→\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n 19→\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n 20→) VALUES (\n 21→\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n 22→ :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n 23→);`\n 24→\n 25→const NamedJobInsert string = `INSERT INTO job (\n 26→\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n 27→\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n 28→) VALUES (\n 29→\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n 30→ :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n 31→);`\n 32→\n 33→// InsertJobDirect inserts a job directly into the job table (not job_cache).\n 34→// Use this when the returned ID will be used for operations on the job table\n 35→// (e.g., adding tags), or for imported jobs that are already completed.\n 36→func (r *JobRepository) InsertJobDirect(job *schema.Job) (int64, error) {\n 37→\tr.Mutex.Lock()\n 38→\tdefer r.Mutex.Unlock()\n 39→\n 40→\tres, err := r.DB.NamedExec(NamedJobInsert, job)\n 41→\tif err != nil {\n 42→\t\tcclog.Warn(\"Error while NamedJobInsert (direct)\")\n 43→\t\treturn 0, err\n 44→\t}\n 45→\tid, err := res.LastInsertId()\n 46→\tif err != nil {\n 47→\t\tcclog.Warn(\"Error while getting last insert ID (direct)\")\n 48→\t\treturn 0, err\n 49→\t}\n 50→\n 51→\treturn id, nil\n 52→}\n 53→\n 54→func (r *JobRepository) InsertJob(job *schema.Job) (int64, error) {\n 55→\tr.Mutex.Lock()\n 56→\tdefer r.Mutex.Unlock()\n 57→\n 58→\tres, err := r.DB.NamedExec(NamedJobCacheInsert, job)\n 59→\tif err != nil {\n 60→\t\tcclog.Warn(\"Error while NamedJobInsert\")\n 61→\t\treturn 0, err\n 62→\t}\n 63→\tid, err := res.LastInsertId()\n 64→\tif err != nil {\n 65→\t\tcclog.Warn(\"Error while getting last insert ID\")\n 66→\t\treturn 0, err\n 67→\t}\n 68→\n 69→\treturn id, nil\n 70→}\n 71→\n 72→func (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n 73→\tr.Mutex.Lock()\n 74→\tdefer r.Mutex.Unlock()\n 75→\n 76→\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n 77→\n 78→\trows, err := query.RunWith(r.stmtCache).Query()\n 79→\tif err != nil {\n 80→\t\tcclog.Errorf(\"Error while running query %v\", err)\n 81→\t\treturn nil, err\n 82→\t}\n 83→\tdefer rows.Close()\n 84→\n 85→\tjobs := make([]*schema.Job, 0, 50)\n 86→\tfor rows.Next() {\n 87→\t\tjob, err := scanJob(rows)\n 88→\t\tif err != nil {\n 89→\t\t\tcclog.Warn(\"Error while scanning rows\")\n 90→\t\t\treturn nil, err\n 91→\t\t}\n 92→\t\tjobs = append(jobs, job)\n 93→\t}\n 94→\n 95→\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n 96→\t_, err = r.DB.Exec(\n 97→\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n 98→\tif err != nil {\n 99→\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n 100→\t\treturn nil, err\n 101→\t}\n 102→\n 103→\t_, err = r.DB.Exec(\"DELETE FROM job_cache\")\n 104→\tif err != nil {\n 105→\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n 106→\t\treturn nil, err\n 107→\t}\n 108→\n 109→\t// Resolve correct job.id from the job table. The IDs read from job_cache\n 110→\t// are from a different auto-increment sequence and must not be used to\n 111→\t// query the job table.\n 112→\tfor _, job := range jobs {\n 113→\t\tvar newID int64\n 114→\t\tif err := sq.Select(\"job.id\").From(\"job\").\n 115→\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n 116→\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n 117→\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n 118→\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n 119→\t\t\t\tjob.JobID, job.Cluster, err)\n 120→\t\t\tcontinue\n 121→\t\t}\n 122→\t\tjob.ID = &newID\n 123→\t}\n 124→\n 125→\treturn jobs, nil\n 126→}\n 127→\n 128→// TransferCachedJobToMain moves a job from job_cache to the job table.\n 129→// Caller must hold r.Mutex. Returns the new job table ID.\n 130→func (r *JobRepository) TransferCachedJobToMain(cacheID int64) (int64, error) {\n 131→\tres, err := r.DB.Exec(\n 132→\t\t\"INSERT INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache WHERE id = ?\",\n 133→\t\tcacheID)\n 134→\tif err != nil {\n 135→\t\treturn 0, fmt.Errorf(\"transferring cached job %d to main table failed: %w\", cacheID, err)\n 136→\t}\n 137→\n 138→\tnewID, err := res.LastInsertId()\n 139→\tif err != nil {\n 140→\t\treturn 0, fmt.Errorf(\"getting new job ID after transfer failed: %w\", err)\n 141→\t}\n 142→\n 143→\t_, err = r.DB.Exec(\"DELETE FROM job_cache WHERE id = ?\", cacheID)\n 144→\tif err != nil {\n 145→\t\treturn 0, fmt.Errorf(\"deleting cached job %d after transfer failed: %w\", cacheID, err)\n 146→\t}\n 147→\n 148→\treturn newID, nil\n 149→}\n 150→\n 151→// Start inserts a new job in the table, returning the unique job ID.\n 152→// Statistics are not transfered!\n 153→func (r *JobRepository) Start(job *schema.Job) (id int64, err error) {\n 154→\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n 155→\tif err != nil {\n 156→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n 157→\t}\n 158→\n 159→\tjob.RawResources, err = json.Marshal(job.Resources)\n 160→\tif err != nil {\n 161→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n 162→\t}\n 163→\n 164→\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n 165→\tif err != nil {\n 166→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n 167→\t}\n 168→\n 169→\treturn r.InsertJob(job)\n 170→}\n 171→\n 172→// StartDirect inserts a new job directly into the job table (not job_cache).\n 173→// Use this when the returned ID will immediately be used for job table\n 174→// operations such as adding tags.\n 175→func (r *JobRepository) StartDirect(job *schema.Job) (id int64, err error) {\n 176→\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n 177→\tif err != nil {\n 178→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n 179→\t}\n 180→\n 181→\tjob.RawResources, err = json.Marshal(job.Resources)\n 182→\tif err != nil {\n 183→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n 184→\t}\n 185→\n 186→\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n 187→\tif err != nil {\n 188→\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n 189→\t}\n 190→\n 191→\treturn r.InsertJobDirect(job)\n 192→}\n 193→\n 194→// Stop updates the job with the database id jobId using the provided arguments.\n 195→func (r *JobRepository) Stop(\n 196→\tjobID int64,\n 197→\tduration int32,\n 198→\tstate schema.JobState,\n 199→\tmonitoringStatus int32,\n 200→) (err error) {\n 201→\t// Invalidate cache entries as job state is changing\n 202→\tr.cache.Del(fmt.Sprintf(\"metadata:%d\", jobID))\n 203→\tr.cache.Del(fmt.Sprintf(\"energyFootprint:%d\", jobID))\n 204→\n 205→\tstmt := sq.Update(\"job\").\n 206→\t\tSet(\"job_state\", state).\n 207→\t\tSet(\"duration\", duration).\n 208→\t\tSet(\"monitoring_status\", monitoringStatus).\n 209→\t\tWhere(\"job.id = ?\", jobID)\n 210→\n 211→\t_, err = stmt.RunWith(r.stmtCache).Exec()\n 212→\treturn err\n 213→}\n 214→"}]},"uuid":"b1410bed-082c-4942-bdc0-f810e807e257","timestamp":"2026-03-16T10:12:42.900Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/jobCreate.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"encoding/json\"\n\t\"fmt\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n)\n\nconst NamedJobCacheInsert string = `INSERT INTO job_cache (\n\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n) VALUES (\n\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n);`\n\nconst NamedJobInsert string = `INSERT INTO job (\n\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n) VALUES (\n\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n);`\n\n// InsertJobDirect inserts a job directly into the job table (not job_cache).\n// Use this when the returned ID will be used for operations on the job table\n// (e.g., adding tags), or for imported jobs that are already completed.\nfunc (r *JobRepository) InsertJobDirect(job *schema.Job) (int64, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tres, err := r.DB.NamedExec(NamedJobInsert, job)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while NamedJobInsert (direct)\")\n\t\treturn 0, err\n\t}\n\tid, err := res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting last insert ID (direct)\")\n\t\treturn 0, err\n\t}\n\n\treturn id, nil\n}\n\nfunc (r *JobRepository) InsertJob(job *schema.Job) (int64, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tres, err := r.DB.NamedExec(NamedJobCacheInsert, job)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while NamedJobInsert\")\n\t\treturn 0, err\n\t}\n\tid, err := res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting last insert ID\")\n\t\treturn 0, err\n\t}\n\n\treturn id, nil\n}\n\nfunc (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = r.DB.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}\n\n// TransferCachedJobToMain moves a job from job_cache to the job table.\n// Caller must hold r.Mutex. Returns the new job table ID.\nfunc (r *JobRepository) TransferCachedJobToMain(cacheID int64) (int64, error) {\n\tres, err := r.DB.Exec(\n\t\t\"INSERT INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache WHERE id = ?\",\n\t\tcacheID)\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"transferring cached job %d to main table failed: %w\", cacheID, err)\n\t}\n\n\tnewID, err := res.LastInsertId()\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"getting new job ID after transfer failed: %w\", err)\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache WHERE id = ?\", cacheID)\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"deleting cached job %d after transfer failed: %w\", cacheID, err)\n\t}\n\n\treturn newID, nil\n}\n\n// Start inserts a new job in the table, returning the unique job ID.\n// Statistics are not transfered!\nfunc (r *JobRepository) Start(job *schema.Job) (id int64, err error) {\n\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n\t}\n\n\tjob.RawResources, err = json.Marshal(job.Resources)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n\t}\n\n\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n\t}\n\n\treturn r.InsertJob(job)\n}\n\n// StartDirect inserts a new job directly into the job table (not job_cache).\n// Use this when the returned ID will immediately be used for job table\n// operations such as adding tags.\nfunc (r *JobRepository) StartDirect(job *schema.Job) (id int64, err error) {\n\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n\t}\n\n\tjob.RawResources, err = json.Marshal(job.Resources)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n\t}\n\n\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n\t}\n\n\treturn r.InsertJobDirect(job)\n}\n\n// Stop updates the job with the database id jobId using the provided arguments.\nfunc (r *JobRepository) Stop(\n\tjobID int64,\n\tduration int32,\n\tstate schema.JobState,\n\tmonitoringStatus int32,\n) (err error) {\n\t// Invalidate cache entries as job state is changing\n\tr.cache.Del(fmt.Sprintf(\"metadata:%d\", jobID))\n\tr.cache.Del(fmt.Sprintf(\"energyFootprint:%d\", jobID))\n\n\tstmt := sq.Update(\"job\").\n\t\tSet(\"job_state\", state).\n\t\tSet(\"duration\", duration).\n\t\tSet(\"monitoring_status\", monitoringStatus).\n\t\tWhere(\"job.id = ?\", jobID)\n\n\t_, err = stmt.RunWith(r.stmtCache).Exec()\n\treturn err\n}\n","numLines":214,"startLine":1,"totalLines":214}},"sourceToolAssistantUUID":"e001baa9-61e4-45ac-b202-53caad8b525f","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"b1410bed-082c-4942-bdc0-f810e807e257","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_013VAzs3usxwd9iqdNSds5yz","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"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"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":46892,"cache_read_input_tokens":19821,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":46892},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adsCPYAT9vZGRkhxpp","type":"assistant","uuid":"1ebf8957-c94e-4dfb-abca-46488d4b1aa1","timestamp":"2026-03-16T10:12:49.062Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"1ebf8957-c94e-4dfb-abca-46488d4b1aa1","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_013VAzs3usxwd9iqdNSds5yz","type":"message","role":"assistant","content":[{"type":"text","text":"I've read all the files. Let me implement all 5 fixes now.\n\n**Fix 1: busy_timeout** — config + connection + sqlite archive"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":46892,"cache_read_input_tokens":19821,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":46892},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6adsCPYAT9vZGRkhxpp","type":"assistant","uuid":"c2f29743-2fdd-492f-848b-696b290d9004","timestamp":"2026-03-16T10:12:50.368Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport \"time\"\n\n// RepositoryConfig holds configuration for repository operations.\n// All fields have sensible defaults, so this configuration is optional.\ntype RepositoryConfig struct {\n\t// CacheSize is the LRU cache size in bytes for job metadata and energy footprints.\n\t// Default: 1MB (1024 * 1024 bytes)\n\tCacheSize int\n\n\t// MaxOpenConnections is the maximum number of open database connections.\n\t// Default: 4\n\tMaxOpenConnections int\n\n\t// MaxIdleConnections is the maximum number of idle database connections.\n\t// Default: 4\n\tMaxIdleConnections int\n\n\t// ConnectionMaxLifetime is the maximum amount of time a connection may be reused.\n\t// Default: 1 hour\n\tConnectionMaxLifetime time.Duration\n\n\t// ConnectionMaxIdleTime is the maximum amount of time a connection may be idle.\n\t// Default: 10 minutes\n\tConnectionMaxIdleTime time.Duration\n\n\t// MinRunningJobDuration is the minimum duration in seconds for a job to be\n\t// considered in \"running jobs\" queries. This filters out very short jobs.\n\t// Default: 600 seconds (10 minutes)\n\tMinRunningJobDuration int\n\n\t// DbCacheSizeMB is the SQLite page cache size per connection in MB.\n\t// Uses negative PRAGMA cache_size notation (KiB). With MaxOpenConnections=4\n\t// and DbCacheSizeMB=2048, total page cache is up to 8GB.\n\t// Default: 2048 (2GB)\n\tDbCacheSizeMB int\n\n\t// DbSoftHeapLimitMB is the process-wide SQLite soft heap limit in MB.\n\t// SQLite will try to release cache pages to stay under this limit.\n\t// It's a soft limit — queries won't fail, but cache eviction becomes more aggressive.\n\t// Default: 16384 (16GB)\n\tDbSoftHeapLimitMB int\n}\n\n// DefaultConfig returns the default repository configuration.\n// These values are optimized for typical deployments.\nfunc DefaultConfig() *RepositoryConfig {\n\treturn &RepositoryConfig{\n\t\tCacheSize: 1 * 1024 * 1024, // 1MB\n\t\tMaxOpenConnections: 4,\n\t\tMaxIdleConnections: 4,\n\t\tConnectionMaxLifetime: time.Hour,\n\t\tConnectionMaxIdleTime: 10 * time.Minute,\n\t\tMinRunningJobDuration: 600, // 10 minutes\n\t\tDbCacheSizeMB: 2048, // 2GB per connection\n\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n\t}\n}\n\n// repoConfig is the package-level configuration instance.\n// It is initialized with defaults and can be overridden via SetConfig.\nvar repoConfig *RepositoryConfig = DefaultConfig()\n\n// SetConfig sets the repository configuration.\n// This must be called before any repository initialization (Connect, GetJobRepository, etc.).\n// If not called, default values from DefaultConfig() are used.\nfunc SetConfig(cfg *RepositoryConfig) {\n\tif cfg != nil {\n\t\trepoConfig = cfg\n\t}\n}\n\n// GetConfig returns the current repository configuration.\nfunc GetConfig() *RepositoryConfig {\n\treturn repoConfig\n}\n","structuredPatch":[{"oldStart":46,"oldLines":6,"newStart":46,"newLines":12,"lines":[" // It's a soft limit — queries won't fail, but cache eviction becomes more aggressive."," // Default: 16384 (16GB)"," DbSoftHeapLimitMB int","+","+ // BusyTimeoutMs is the SQLite busy_timeout in milliseconds.","+ // When a write is blocked by another writer, SQLite retries internally","+ // using a backoff mechanism for up to this duration before returning SQLITE_BUSY.","+ // Default: 60000 (60 seconds)","+ BusyTimeoutMs int"," }"," "," // DefaultConfig returns the default repository configuration."]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"7f4b63eb-7e62-4753-b51f-b435bf637b0c","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"9de0daa5-83b9-4ed4-8960-e2899ed48028","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01R8Se3SmuEJVx7HYiyPQnje","toolUseID":"toolu_01R8Se3SmuEJVx7HYiyPQnje","timestamp":"2026-03-16T10:12:58.064Z","uuid":"c3404d68-84d1-43ce-a410-1f39dd3999eb","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"9de0daa5-83b9-4ed4-8960-e2899ed48028","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01R8Se3SmuEJVx7HYiyPQnje","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/config.go has been updated successfully."}]},"uuid":"d628e4c8-575a-45c7-8b41-5fd4ef5c4ec1","timestamp":"2026-03-16T10:12:58.064Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/config.go","oldString":"\t\tDbCacheSizeMB: 2048, // 2GB per connection\n\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n\t}","newString":"\t\tDbCacheSizeMB: 2048, // 2GB per connection\n\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n\t\tBusyTimeoutMs: 60000, // 60 seconds\n\t}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport \"time\"\n\n// RepositoryConfig holds configuration for repository operations.\n// All fields have sensible defaults, so this configuration is optional.\ntype RepositoryConfig struct {\n\t// CacheSize is the LRU cache size in bytes for job metadata and energy footprints.\n\t// Default: 1MB (1024 * 1024 bytes)\n\tCacheSize int\n\n\t// MaxOpenConnections is the maximum number of open database connections.\n\t// Default: 4\n\tMaxOpenConnections int\n\n\t// MaxIdleConnections is the maximum number of idle database connections.\n\t// Default: 4\n\tMaxIdleConnections int\n\n\t// ConnectionMaxLifetime is the maximum amount of time a connection may be reused.\n\t// Default: 1 hour\n\tConnectionMaxLifetime time.Duration\n\n\t// ConnectionMaxIdleTime is the maximum amount of time a connection may be idle.\n\t// Default: 10 minutes\n\tConnectionMaxIdleTime time.Duration\n\n\t// MinRunningJobDuration is the minimum duration in seconds for a job to be\n\t// considered in \"running jobs\" queries. This filters out very short jobs.\n\t// Default: 600 seconds (10 minutes)\n\tMinRunningJobDuration int\n\n\t// DbCacheSizeMB is the SQLite page cache size per connection in MB.\n\t// Uses negative PRAGMA cache_size notation (KiB). With MaxOpenConnections=4\n\t// and DbCacheSizeMB=2048, total page cache is up to 8GB.\n\t// Default: 2048 (2GB)\n\tDbCacheSizeMB int\n\n\t// DbSoftHeapLimitMB is the process-wide SQLite soft heap limit in MB.\n\t// SQLite will try to release cache pages to stay under this limit.\n\t// It's a soft limit — queries won't fail, but cache eviction becomes more aggressive.\n\t// Default: 16384 (16GB)\n\tDbSoftHeapLimitMB int\n\n\t// BusyTimeoutMs is the SQLite busy_timeout in milliseconds.\n\t// When a write is blocked by another writer, SQLite retries internally\n\t// using a backoff mechanism for up to this duration before returning SQLITE_BUSY.\n\t// Default: 60000 (60 seconds)\n\tBusyTimeoutMs int\n}\n\n// DefaultConfig returns the default repository configuration.\n// These values are optimized for typical deployments.\nfunc DefaultConfig() *RepositoryConfig {\n\treturn &RepositoryConfig{\n\t\tCacheSize: 1 * 1024 * 1024, // 1MB\n\t\tMaxOpenConnections: 4,\n\t\tMaxIdleConnections: 4,\n\t\tConnectionMaxLifetime: time.Hour,\n\t\tConnectionMaxIdleTime: 10 * time.Minute,\n\t\tMinRunningJobDuration: 600, // 10 minutes\n\t\tDbCacheSizeMB: 2048, // 2GB per connection\n\t\tDbSoftHeapLimitMB: 16384, // 16GB process-wide\n\t}\n}\n\n// repoConfig is the package-level configuration instance.\n// It is initialized with defaults and can be overridden via SetConfig.\nvar repoConfig *RepositoryConfig = DefaultConfig()\n\n// SetConfig sets the repository configuration.\n// This must be called before any repository initialization (Connect, GetJobRepository, etc.).\n// If not called, default values from DefaultConfig() are used.\nfunc SetConfig(cfg *RepositoryConfig) {\n\tif cfg != nil {\n\t\trepoConfig = cfg\n\t}\n}\n\n// GetConfig returns the current repository configuration.\nfunc GetConfig() *RepositoryConfig {\n\treturn repoConfig\n}\n","structuredPatch":[{"oldStart":66,"oldLines":6,"newStart":66,"newLines":7,"lines":[" MinRunningJobDuration: 600, // 10 minutes"," DbCacheSizeMB: 2048, // 2GB per connection"," DbSoftHeapLimitMB: 16384, // 16GB process-wide","+ BusyTimeoutMs: 60000, // 60 seconds"," }"," }"," "]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"9de0daa5-83b9-4ed4-8960-e2899ed48028","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"61721dc8-d1c5-4347-931f-d7051b5cc537","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01HzBe5YVHEBSD4yD6LmHuSD","toolUseID":"toolu_01HzBe5YVHEBSD4yD6LmHuSD","timestamp":"2026-03-16T10:12:59.715Z","uuid":"deab4fcc-fee5-430b-849a-dbc65368b8ab","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"61721dc8-d1c5-4347-931f-d7051b5cc537","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HzBe5YVHEBSD4yD6LmHuSD","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/dbConnection.go has been updated successfully."}]},"uuid":"4b0b2cf9-5197-4b79-9069-77d8684092c6","timestamp":"2026-03-16T10:12:59.715Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/dbConnection.go","oldString":"\t\tconnectionURLParams.Add(\"_busy_timeout\", \"5000\")","newString":"\t\tconnectionURLParams.Add(\"_busy_timeout\", fmt.Sprintf(\"%d\", repoConfig.BusyTimeoutMs))","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"database/sql\"\n\t\"fmt\"\n\t\"net/url\"\n\t\"sync\"\n\t\"time\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/jmoiron/sqlx\"\n\t\"github.com/mattn/go-sqlite3\"\n\t\"github.com/qustavo/sqlhooks/v2\"\n)\n\nvar (\n\tdbConnOnce sync.Once\n\tdbConnInstance *DBConnection\n)\n\ntype DBConnection struct {\n\tDB *sqlx.DB\n\tDriver string\n}\n\ntype DatabaseOptions struct {\n\tURL string\n\tMaxOpenConnections int\n\tMaxIdleConnections int\n\tConnectionMaxLifetime time.Duration\n\tConnectionMaxIdleTime time.Duration\n}\n\nfunc setupSqlite(db *sql.DB, cfg *RepositoryConfig) error {\n\tpragmas := []string{\n\t\t\"temp_store = memory\",\n\t\tfmt.Sprintf(\"soft_heap_limit = %d\", int64(cfg.DbSoftHeapLimitMB)*1024*1024),\n\t}\n\n\tfor _, pragma := range pragmas {\n\t\t_, err := db.Exec(\"PRAGMA \" + pragma)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc Connect(db string) {\n\tvar err error\n\tvar dbHandle *sqlx.DB\n\n\tdbConnOnce.Do(func() {\n\t\topts := DatabaseOptions{\n\t\t\tURL: db,\n\t\t\tMaxOpenConnections: repoConfig.MaxOpenConnections,\n\t\t\tMaxIdleConnections: repoConfig.MaxIdleConnections,\n\t\t\tConnectionMaxLifetime: repoConfig.ConnectionMaxLifetime,\n\t\t\tConnectionMaxIdleTime: repoConfig.ConnectionMaxIdleTime,\n\t\t}\n\n\t\t// TODO: Have separate DB handles for Writes and Reads\n\t\t// Optimize SQLite connection: https://kerkour.com/sqlite-for-servers\n\t\tconnectionURLParams := make(url.Values)\n\t\tconnectionURLParams.Add(\"_txlock\", \"immediate\")\n\t\tconnectionURLParams.Add(\"_journal_mode\", \"WAL\")\n\t\tconnectionURLParams.Add(\"_busy_timeout\", \"5000\")\n\t\tconnectionURLParams.Add(\"_synchronous\", \"NORMAL\")\n\t\tcacheSizeKiB := repoConfig.DbCacheSizeMB * 1024 // Convert MB to KiB\n\t\tconnectionURLParams.Add(\"_cache_size\", fmt.Sprintf(\"-%d\", cacheSizeKiB))\n\t\tconnectionURLParams.Add(\"_foreign_keys\", \"true\")\n\t\topts.URL = fmt.Sprintf(\"file:%s?%s\", opts.URL, connectionURLParams.Encode())\n\n\t\tif cclog.Loglevel() == \"debug\" {\n\t\t\tsql.Register(\"sqlite3WithHooks\", sqlhooks.Wrap(&sqlite3.SQLiteDriver{}, &Hooks{}))\n\t\t\tdbHandle, err = sqlx.Open(\"sqlite3WithHooks\", opts.URL)\n\t\t} else {\n\t\t\tdbHandle, err = sqlx.Open(\"sqlite3\", opts.URL)\n\t\t}\n\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"DB Connection: Could not connect to SQLite database with sqlx.Open().\\nError: %s\\n\", err.Error())\n\t\t}\n\n\t\terr = setupSqlite(dbHandle.DB, repoConfig)\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"Failed sqlite db setup.\\nError: %s\\n\", err.Error())\n\t\t}\n\n\t\tcclog.Infof(\"SQLite config: cache_size=%dMB/conn, soft_heap_limit=%dMB, max_conns=%d\",\n\t\t\trepoConfig.DbCacheSizeMB, repoConfig.DbSoftHeapLimitMB, repoConfig.MaxOpenConnections)\n\n\t\tdbHandle.SetMaxOpenConns(opts.MaxOpenConnections)\n\t\tdbHandle.SetMaxIdleConns(opts.MaxIdleConnections)\n\t\tdbHandle.SetConnMaxLifetime(opts.ConnectionMaxLifetime)\n\t\tdbHandle.SetConnMaxIdleTime(opts.ConnectionMaxIdleTime)\n\n\t\tdbConnInstance = &DBConnection{DB: dbHandle}\n\t\terr = checkDBVersion(dbHandle.DB)\n\t\tif err != nil {\n\t\t\tcclog.Abortf(\"DB Connection: Failed DB version check.\\nError: %s\\n\", err.Error())\n\t\t}\n\t})\n}\n\nfunc GetConnection() *DBConnection {\n\tif dbConnInstance == nil {\n\t\tcclog.Fatalf(\"Database connection not initialized!\")\n\t}\n\n\treturn dbConnInstance\n}\n\n// ResetConnection closes the current database connection and resets the connection state.\n// This function is intended for testing purposes only to allow test isolation.\nfunc ResetConnection() error {\n\tif dbConnInstance != nil && dbConnInstance.DB != nil {\n\t\tif err := dbConnInstance.DB.Close(); err != nil {\n\t\t\treturn fmt.Errorf(\"failed to close database connection: %w\", err)\n\t\t}\n\t}\n\n\tdbConnInstance = nil\n\tdbConnOnce = sync.Once{}\n\tjobRepoInstance = nil\n\tjobRepoOnce = sync.Once{}\n\tnodeRepoInstance = nil\n\tnodeRepoOnce = sync.Once{}\n\tuserRepoInstance = nil\n\tuserRepoOnce = sync.Once{}\n\tuserCfgRepoInstance = nil\n\tuserCfgRepoOnce = sync.Once{}\n\n\treturn nil\n}\n","structuredPatch":[{"oldStart":70,"oldLines":7,"newStart":70,"newLines":7,"lines":[" connectionURLParams := make(url.Values)"," connectionURLParams.Add(\"_txlock\", \"immediate\")"," connectionURLParams.Add(\"_journal_mode\", \"WAL\")","- connectionURLParams.Add(\"_busy_timeout\", \"5000\")","+ connectionURLParams.Add(\"_busy_timeout\", fmt.Sprintf(\"%d\", repoConfig.BusyTimeoutMs))"," connectionURLParams.Add(\"_synchronous\", \"NORMAL\")"," cacheSizeKiB := repoConfig.DbCacheSizeMB * 1024 // Convert MB to KiB"," connectionURLParams.Add(\"_cache_size\", fmt.Sprintf(\"-%d\", cacheSizeKiB))"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"61721dc8-d1c5-4347-931f-d7051b5cc537","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"94ecafb1-e6a3-48e2-bfe6-f8d44e7872e4","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"94ecafb1-e6a3-48e2-bfe6-f8d44e7872e4","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01DKfMUeEpVGdA1euzr8Dj7K","toolUseID":"toolu_01DKfMUeEpVGdA1euzr8Dj7K","timestamp":"2026-03-16T10:13:00.522Z","uuid":"d48763f7-188b-4f21-a369-ed9a3a41d910","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"94ecafb1-e6a3-48e2-bfe6-f8d44e7872e4","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DKfMUeEpVGdA1euzr8Dj7K","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/pkg/archive/sqliteBackend.go has been updated successfully."}]},"uuid":"3a22cc93-0b68-43a4-963f-6c4264c043db","timestamp":"2026-03-16T10:13:00.521Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/pkg/archive/sqliteBackend.go","oldString":"\t\t\"PRAGMA busy_timeout=5000\",","newString":"\t\t\"PRAGMA busy_timeout=60000\",","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage archive\n\nimport (\n\t\"bytes\"\n\t\"compress/gzip\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"io\"\n\t\"math\"\n\t\"os\"\n\t\"slices\"\n\t\"strconv\"\n\t\"sync\"\n\t\"text/tabwriter\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n\t_ \"github.com/mattn/go-sqlite3\"\n)\n\n// SqliteArchiveConfig holds the configuration for the SQLite archive backend.\ntype SqliteArchiveConfig struct {\n\tDBPath string `json:\"db-path\"` // Path to SQLite database file\n}\n\n// SqliteArchive implements ArchiveBackend using a SQLite database with BLOB storage.\n// Job metadata and data are stored as JSON BLOBs with indexes for fast queries.\n//\n// Uses WAL (Write-Ahead Logging) mode for better concurrency and a 64MB cache.\ntype SqliteArchive struct {\n\tdb *sql.DB // SQLite database connection\n\tclusters []string // List of discovered cluster names\n}\n\n// sqliteSchema defines the database schema for SQLite archive backend.\n// Jobs table: stores job metadata and data as BLOBs with compression flag\n// Clusters table: stores cluster configurations\n// Metadata table: stores version and other key-value pairs\nconst sqliteSchema = `\nCREATE TABLE IF NOT EXISTS jobs (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n job_id INTEGER NOT NULL,\n cluster TEXT NOT NULL,\n start_time INTEGER NOT NULL,\n meta_json BLOB NOT NULL,\n data_json BLOB,\n data_compressed BOOLEAN DEFAULT 0,\n created_at INTEGER NOT NULL,\n updated_at INTEGER NOT NULL,\n UNIQUE(job_id, cluster, start_time)\n);\n\nCREATE INDEX IF NOT EXISTS idx_jobs_cluster ON jobs(cluster);\nCREATE INDEX IF NOT EXISTS idx_jobs_start_time ON jobs(start_time);\nCREATE INDEX IF NOT EXISTS idx_jobs_order ON jobs(cluster, start_time);\nCREATE INDEX IF NOT EXISTS idx_jobs_lookup ON jobs(cluster, job_id, start_time);\n\nCREATE TABLE IF NOT EXISTS clusters (\n name TEXT PRIMARY KEY,\n config_json BLOB NOT NULL,\n updated_at INTEGER NOT NULL\n);\n\nCREATE TABLE IF NOT EXISTS metadata (\n key TEXT PRIMARY KEY,\n value TEXT NOT NULL\n);\n`\n\nfunc (sa *SqliteArchive) Init(rawConfig json.RawMessage) (uint64, error) {\n\tvar cfg SqliteArchiveConfig\n\tif err := json.Unmarshal(rawConfig, &cfg); err != nil {\n\t\tcclog.Warnf(\"SqliteArchive Init() > Unmarshal error: %#v\", err)\n\t\treturn 0, err\n\t}\n\n\tif cfg.DBPath == \"\" {\n\t\terr := fmt.Errorf(\"SqliteArchive Init(): empty database path\")\n\t\tcclog.Errorf(\"SqliteArchive Init() > config error: %v\", err)\n\t\treturn 0, err\n\t}\n\n\t// Open SQLite database\n\tdb, err := sql.Open(\"sqlite3\", cfg.DBPath)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to open database: %v\", err)\n\t\treturn 0, err\n\t}\n\tsa.db = db\n\n\t// Set pragmas for better performance\n\tpragmas := []string{\n\t\t\"PRAGMA journal_mode=WAL\",\n\t\t\"PRAGMA synchronous=NORMAL\",\n\t\t\"PRAGMA cache_size=-64000\", // 64MB cache\n\t\t\"PRAGMA busy_timeout=5000\",\n\t}\n\tfor _, pragma := range pragmas {\n\t\tif _, err := sa.db.Exec(pragma); err != nil {\n\t\t\tcclog.Warnf(\"SqliteArchive Init() > pragma failed: %v\", err)\n\t\t}\n\t}\n\n\t// Create schema\n\tif _, err := sa.db.Exec(sqliteSchema); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > schema creation failed: %v\", err)\n\t\treturn 0, err\n\t}\n\n\t// Check/set version\n\tvar versionStr string\n\terr = sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'version'\").Scan(&versionStr)\n\tif err == sql.ErrNoRows {\n\t\t// First time initialization, set version\n\t\t_, err = sa.db.Exec(\"INSERT INTO metadata (key, value) VALUES ('version', ?)\", fmt.Sprintf(\"%d\", Version))\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to set version: %v\", err)\n\t\t\treturn 0, err\n\t\t}\n\t\tversionStr = fmt.Sprintf(\"%d\", Version)\n\t} else if err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to read version: %v\", err)\n\t\treturn 0, err\n\t}\n\n\tversion, err := strconv.ParseUint(versionStr, 10, 64)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > version parse error: %v\", err)\n\t\treturn 0, err\n\t}\n\n\tif version != Version {\n\t\treturn version, fmt.Errorf(\"unsupported version %d, need %d\", version, Version)\n\t}\n\n\t// Discover clusters\n\tsa.clusters = []string{}\n\trows, err := sa.db.Query(\"SELECT DISTINCT cluster FROM jobs ORDER BY cluster\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Init() > failed to query clusters: %v\", err)\n\t\treturn 0, err\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar cluster string\n\t\tif err := rows.Scan(&cluster); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Init() > failed to scan cluster: %v\", err)\n\t\t\tcontinue\n\t\t}\n\t\tsa.clusters = append(sa.clusters, cluster)\n\t}\n\n\tcclog.Infof(\"SqliteArchive initialized with database '%s', found %d clusters\", cfg.DBPath, len(sa.clusters))\n\treturn version, nil\n}\n\nfunc (sa *SqliteArchive) Info() {\n\tfmt.Printf(\"SQLite Job archive database\\n\")\n\n\tci := make(map[string]*clusterInfo)\n\n\trows, err := sa.db.Query(`\n\t\tSELECT cluster, COUNT(*), MIN(start_time), MAX(start_time),\n\t\t SUM(LENGTH(meta_json) + COALESCE(LENGTH(data_json), 0))\n\t\tFROM jobs\n\t\tGROUP BY cluster\n\t`)\n\tif err != nil {\n\t\tcclog.Fatalf(\"SqliteArchive Info() > query failed: %s\", err.Error())\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar cluster string\n\t\tvar numJobs int\n\t\tvar dateFirst, dateLast int64\n\t\tvar diskSize int64\n\n\t\tif err := rows.Scan(&cluster, &numJobs, &dateFirst, &dateLast, &diskSize); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Info() > scan failed: %v\", err)\n\t\t\tcontinue\n\t\t}\n\n\t\tci[cluster] = &clusterInfo{\n\t\t\tnumJobs: numJobs,\n\t\t\tdateFirst: dateFirst,\n\t\t\tdateLast: dateLast,\n\t\t\tdiskSize: float64(diskSize) / (1024 * 1024), // Convert to MB\n\t\t}\n\t}\n\n\tcit := clusterInfo{dateFirst: time.Now().Unix()}\n\tw := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', tabwriter.Debug)\n\tfmt.Fprintln(w, \"cluster\\t#jobs\\tfrom\\tto\\tsize (MB)\")\n\tfor cluster, clusterInfo := range ci {\n\t\tfmt.Fprintf(w, \"%s\\t%d\\t%s\\t%s\\t%.2f\\n\", cluster,\n\t\t\tclusterInfo.numJobs,\n\t\t\ttime.Unix(clusterInfo.dateFirst, 0),\n\t\t\ttime.Unix(clusterInfo.dateLast, 0),\n\t\t\tclusterInfo.diskSize)\n\n\t\tcit.numJobs += clusterInfo.numJobs\n\t\tcit.dateFirst = util.Min(cit.dateFirst, clusterInfo.dateFirst)\n\t\tcit.dateLast = util.Max(cit.dateLast, clusterInfo.dateLast)\n\t\tcit.diskSize += clusterInfo.diskSize\n\t}\n\n\tfmt.Fprintf(w, \"TOTAL\\t%d\\t%s\\t%s\\t%.2f\\n\",\n\t\tcit.numJobs, time.Unix(cit.dateFirst, 0), time.Unix(cit.dateLast, 0), cit.diskSize)\n\tw.Flush()\n}\n\nfunc (sa *SqliteArchive) Exists(job *schema.Job) bool {\n\tvar count int\n\terr := sa.db.QueryRow(\"SELECT COUNT(*) FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&count)\n\treturn err == nil && count > 0\n}\n\nfunc (sa *SqliteArchive) LoadJobMeta(job *schema.Job) (*schema.Job, error) {\n\tvar metaBlob []byte\n\terr := sa.db.QueryRow(\"SELECT meta_json FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&metaBlob)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobMeta() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif config.Keys.Validate {\n\t\tif err := schema.Validate(schema.Meta, bytes.NewReader(metaBlob)); err != nil {\n\t\t\treturn nil, fmt.Errorf(\"validate job meta: %v\", err)\n\t\t}\n\t}\n\n\treturn DecodeJobMeta(bytes.NewReader(metaBlob))\n}\n\nfunc (sa *SqliteArchive) LoadJobData(job *schema.Job) (schema.JobData, error) {\n\tvar dataBlob []byte\n\tvar compressed bool\n\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\n\tvar reader io.Reader = bytes.NewReader(dataBlob)\n\tif compressed {\n\t\tgzipReader, err := gzip.NewReader(reader)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive LoadJobData() > gzip error: %v\", err)\n\t\t\treturn nil, err\n\t\t}\n\t\tdefer gzipReader.Close()\n\t\treader = gzipReader\n\t}\n\n\tif config.Keys.Validate {\n\t\tdata, _ := io.ReadAll(reader)\n\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n\t\t\treturn schema.JobData{}, fmt.Errorf(\"validate job data: %v\", err)\n\t\t}\n\t\treturn DecodeJobData(bytes.NewReader(data), key)\n\t}\n\n\treturn DecodeJobData(reader, key)\n}\n\nfunc (sa *SqliteArchive) LoadJobStats(job *schema.Job) (schema.ScopedJobStats, error) {\n\tvar dataBlob []byte\n\tvar compressed bool\n\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\n\tvar reader io.Reader = bytes.NewReader(dataBlob)\n\tif compressed {\n\t\tgzipReader, err := gzip.NewReader(reader)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive LoadJobStats() > gzip error: %v\", err)\n\t\t\treturn nil, err\n\t\t}\n\t\tdefer gzipReader.Close()\n\t\treader = gzipReader\n\t}\n\n\tif config.Keys.Validate {\n\t\tdata, _ := io.ReadAll(reader)\n\t\tif err := schema.Validate(schema.Data, bytes.NewReader(data)); err != nil {\n\t\t\treturn nil, fmt.Errorf(\"validate job data: %v\", err)\n\t\t}\n\t\treturn DecodeJobStats(bytes.NewReader(data), key)\n\t}\n\n\treturn DecodeJobStats(reader, key)\n}\n\nfunc (sa *SqliteArchive) LoadClusterCfg(name string) (*schema.Cluster, error) {\n\tvar configBlob []byte\n\terr := sa.db.QueryRow(\"SELECT config_json FROM clusters WHERE name = ?\", name).Scan(&configBlob)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive LoadClusterCfg() > query error: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif config.Keys.Validate {\n\t\tif err := schema.Validate(schema.ClusterCfg, bytes.NewReader(configBlob)); err != nil {\n\t\t\tcclog.Warnf(\"Validate cluster config: %v\\n\", err)\n\t\t\treturn &schema.Cluster{}, fmt.Errorf(\"validate cluster config: %v\", err)\n\t\t}\n\t}\n\n\treturn DecodeCluster(bytes.NewReader(configBlob))\n}\n\nfunc (sa *SqliteArchive) StoreJobMeta(job *schema.Job) error {\n\tvar metaBuf bytes.Buffer\n\tif err := EncodeJobMeta(&metaBuf, job); err != nil {\n\t\tcclog.Error(\"SqliteArchive StoreJobMeta() > encoding error\")\n\t\treturn err\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, created_at, updated_at)\n\t\tVALUES (?, ?, ?, ?, ?, ?)\n\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n\t\t\tmeta_json = excluded.meta_json,\n\t\t\tupdated_at = excluded.updated_at\n\t`, job.JobID, job.Cluster, job.StartTime, metaBuf.Bytes(), now, now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive StoreJobMeta() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (sa *SqliteArchive) ImportJob(jobMeta *schema.Job, jobData *schema.JobData) error {\n\tvar metaBuf, dataBuf bytes.Buffer\n\tif err := EncodeJobMeta(&metaBuf, jobMeta); err != nil {\n\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding meta error\")\n\t\treturn err\n\t}\n\tif err := EncodeJobData(&dataBuf, jobData); err != nil {\n\t\tcclog.Error(\"SqliteArchive ImportJob() > encoding data error\")\n\t\treturn err\n\t}\n\n\tvar dataBytes []byte\n\tvar compressed bool\n\n\tif dataBuf.Len() > 2000 {\n\t\tvar compressedBuf bytes.Buffer\n\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n\t\tif _, err := gzipWriter.Write(dataBuf.Bytes()); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip write error: %v\", err)\n\t\t\treturn err\n\t\t}\n\t\tif err := gzipWriter.Close(); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive ImportJob() > gzip close error: %v\", err)\n\t\t\treturn err\n\t\t}\n\t\tdataBytes = compressedBuf.Bytes()\n\t\tcompressed = true\n\t} else {\n\t\tdataBytes = dataBuf.Bytes()\n\t\tcompressed = false\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO jobs (job_id, cluster, start_time, meta_json, data_json, data_compressed, created_at, updated_at)\n\t\tVALUES (?, ?, ?, ?, ?, ?, ?, ?)\n\t\tON CONFLICT(job_id, cluster, start_time) DO UPDATE SET\n\t\t\tmeta_json = excluded.meta_json,\n\t\t\tdata_json = excluded.data_json,\n\t\t\tdata_compressed = excluded.data_compressed,\n\t\t\tupdated_at = excluded.updated_at\n\t`, jobMeta.JobID, jobMeta.Cluster, jobMeta.StartTime, metaBuf.Bytes(), dataBytes, compressed, now, now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive ImportJob() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (sa *SqliteArchive) GetClusters() []string {\n\treturn sa.clusters\n}\n\nfunc (sa *SqliteArchive) CleanUp(jobs []*schema.Job) {\n\tstart := time.Now()\n\tcount := 0\n\n\ttx, err := sa.db.Begin()\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > transaction error: %v\", err)\n\t\treturn\n\t}\n\tdefer tx.Rollback()\n\n\tstmt, err := tx.Prepare(\"DELETE FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > prepare error: %v\", err)\n\t\treturn\n\t}\n\tdefer stmt.Close()\n\n\tfor _, job := range jobs {\n\t\tif job == nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() error: job is nil\")\n\t\t\tcontinue\n\t\t}\n\n\t\tif _, err := stmt.Exec(job.JobID, job.Cluster, job.StartTime); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CleanUp() > delete error: %v\", err)\n\t\t} else {\n\t\t\tcount++\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CleanUp() > commit error: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"Retention Service - Remove %d jobs from SQLite in %s\", count, time.Since(start))\n}\n\nfunc (sa *SqliteArchive) Move(jobs []*schema.Job, targetPath string) {\n\t// For SQLite, \"move\" means updating the cluster field or similar\n\t// This is interpretation-dependent; for now we'll just log\n\tcclog.Warnf(\"SqliteArchive Move() is not fully implemented - moves within database not applicable\")\n}\n\nfunc (sa *SqliteArchive) Clean(before int64, after int64) {\n\tif after == 0 {\n\t\tafter = math.MaxInt64\n\t}\n\n\tresult, err := sa.db.Exec(\"DELETE FROM jobs WHERE start_time < ? OR start_time > ?\", before, after)\n\tif err != nil {\n\t\tcclog.Fatalf(\"SqliteArchive Clean() > delete error: %s\", err.Error())\n\t}\n\n\trowsAffected, _ := result.RowsAffected()\n\tcclog.Infof(\"SqliteArchive Clean() removed %d jobs\", rowsAffected)\n}\n\nfunc (sa *SqliteArchive) Compress(jobs []*schema.Job) {\n\tvar cnt int\n\tstart := time.Now()\n\n\ttx, err := sa.db.Begin()\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > transaction error: %v\", err)\n\t\treturn\n\t}\n\tdefer tx.Rollback()\n\n\tstmt, err := tx.Prepare(\"UPDATE jobs SET data_json = ?, data_compressed = 1 WHERE job_id = ? AND cluster = ? AND start_time = ?\")\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > prepare error: %v\", err)\n\t\treturn\n\t}\n\tdefer stmt.Close()\n\n\tfor _, job := range jobs {\n\t\tvar dataBlob []byte\n\t\tvar compressed bool\n\t\terr := sa.db.QueryRow(\"SELECT data_json, data_compressed FROM jobs WHERE job_id = ? AND cluster = ? AND start_time = ?\",\n\t\t\tjob.JobID, job.Cluster, job.StartTime).Scan(&dataBlob, &compressed)\n\t\tif err != nil || compressed || len(dataBlob) < 2000 {\n\t\t\tcontinue // Skip if error, already compressed, or too small\n\t\t}\n\n\t\t// Compress the data\n\t\tvar compressedBuf bytes.Buffer\n\t\tgzipWriter := gzip.NewWriter(&compressedBuf)\n\t\tif _, err := gzipWriter.Write(dataBlob); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Compress() > gzip error: %v\", err)\n\t\t\tgzipWriter.Close()\n\t\t\tcontinue\n\t\t}\n\t\tgzipWriter.Close()\n\n\t\tif _, err := stmt.Exec(compressedBuf.Bytes(), job.JobID, job.Cluster, job.StartTime); err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive Compress() > update error: %v\", err)\n\t\t} else {\n\t\t\tcnt++\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SqliteArchive Compress() > commit error: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"Compression Service - %d jobs in SQLite took %s\", cnt, time.Since(start))\n}\n\nfunc (sa *SqliteArchive) CompressLast(starttime int64) int64 {\n\tvar lastStr string\n\terr := sa.db.QueryRow(\"SELECT value FROM metadata WHERE key = 'compress_last'\").Scan(&lastStr)\n\n\tvar last int64\n\tif err == sql.ErrNoRows {\n\t\tlast = starttime\n\t} else if err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CompressLast() > query error: %v\", err)\n\t\tlast = starttime\n\t} else {\n\t\tlast, err = strconv.ParseInt(lastStr, 10, 64)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"SqliteArchive CompressLast() > parse error: %v\", err)\n\t\t\tlast = starttime\n\t\t}\n\t}\n\n\tcclog.Infof(\"SqliteArchive CompressLast() - start %d last %d\", starttime, last)\n\n\t// Update timestamp\n\t_, err = sa.db.Exec(`\n\t\tINSERT INTO metadata (key, value) VALUES ('compress_last', ?)\n\t\tON CONFLICT(key) DO UPDATE SET value = excluded.value\n\t`, fmt.Sprintf(\"%d\", starttime))\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive CompressLast() > update error: %v\", err)\n\t}\n\n\treturn last\n}\n\ntype sqliteJobRow struct {\n\tmetaBlob []byte\n\tdataBlob []byte\n\tcompressed bool\n}\n\nfunc (sa *SqliteArchive) Iter(loadMetricData bool) <-chan JobContainer {\n\tch := make(chan JobContainer)\n\n\tgo func() {\n\t\tdefer close(ch)\n\n\t\tconst chunkSize = 1000\n\t\toffset := 0\n\n\t\tvar query string\n\t\tif loadMetricData {\n\t\t\tquery = \"SELECT meta_json, data_json, data_compressed FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n\t\t} else {\n\t\t\tquery = \"SELECT meta_json FROM jobs ORDER BY cluster, start_time LIMIT ? OFFSET ?\"\n\t\t}\n\n\t\tnumWorkers := 4\n\t\tjobRows := make(chan sqliteJobRow, numWorkers*2)\n\t\tvar wg sync.WaitGroup\n\n\t\tfor range numWorkers {\n\t\t\twg.Go(func() {\n\t\t\t\tfor row := range jobRows {\n\t\t\t\t\tjob, err := DecodeJobMeta(bytes.NewReader(row.metaBlob))\n\t\t\t\t\tif err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode meta error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\n\t\t\t\t\tif loadMetricData && row.dataBlob != nil {\n\t\t\t\t\t\tvar reader io.Reader = bytes.NewReader(row.dataBlob)\n\t\t\t\t\t\tif row.compressed {\n\t\t\t\t\t\t\tgzipReader, err := gzip.NewReader(reader)\n\t\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > gzip error: %v\", err)\n\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t\t\tcontinue\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tdecompressed, err := io.ReadAll(gzipReader)\n\t\t\t\t\t\t\tgzipReader.Close()\n\t\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decompress error: %v\", err)\n\t\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t\t\tcontinue\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\treader = bytes.NewReader(decompressed)\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tkey := fmt.Sprintf(\"%s:%d:%d\", job.Cluster, job.JobID, job.StartTime)\n\t\t\t\t\t\tjobData, err := DecodeJobData(reader, key)\n\t\t\t\t\t\tif err != nil {\n\t\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > decode data error: %v\", err)\n\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: &jobData}\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\tch <- JobContainer{Meta: job, Data: nil}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t})\n\t\t}\n\n\t\tfor {\n\t\t\trows, err := sa.db.Query(query, chunkSize, offset)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Fatalf(\"SqliteArchive Iter() > query error: %s\", err.Error())\n\t\t\t}\n\n\t\t\trowCount := 0\n\t\t\tfor rows.Next() {\n\t\t\t\tvar row sqliteJobRow\n\n\t\t\t\tif loadMetricData {\n\t\t\t\t\tif err := rows.Scan(&row.metaBlob, &row.dataBlob, &row.compressed); err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\tif err := rows.Scan(&row.metaBlob); err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"SqliteArchive Iter() > scan error: %v\", err)\n\t\t\t\t\t\tcontinue\n\t\t\t\t\t}\n\t\t\t\t\trow.dataBlob = nil\n\t\t\t\t\trow.compressed = false\n\t\t\t\t}\n\n\t\t\t\tjobRows <- row\n\t\t\t\trowCount++\n\t\t\t}\n\t\t\trows.Close()\n\n\t\t\tif rowCount < chunkSize {\n\t\t\t\tbreak\n\t\t\t}\n\n\t\t\toffset += chunkSize\n\t\t}\n\n\t\tclose(jobRows)\n\t\twg.Wait()\n\t}()\n\n\treturn ch\n}\n\nfunc (sa *SqliteArchive) StoreClusterCfg(name string, config *schema.Cluster) error {\n\tvar configBuf bytes.Buffer\n\tif err := EncodeCluster(&configBuf, config); err != nil {\n\t\tcclog.Error(\"SqliteArchive StoreClusterCfg() > encoding error\")\n\t\treturn err\n\t}\n\n\tnow := time.Now().Unix()\n\t_, err := sa.db.Exec(`\n\t\tINSERT INTO clusters (name, config_json, updated_at)\n\t\tVALUES (?, ?, ?)\n\t\tON CONFLICT(name) DO UPDATE SET\n\t\t\tconfig_json = excluded.config_json,\n\t\t\tupdated_at = excluded.updated_at\n\t`, name, configBuf.Bytes(), now)\n\tif err != nil {\n\t\tcclog.Errorf(\"SqliteArchive StoreClusterCfg() > insert error: %v\", err)\n\t\treturn err\n\t}\n\n\t// Update clusters list if new\n\tfound := slices.Contains(sa.clusters, name)\n\tif !found {\n\t\tsa.clusters = append(sa.clusters, name)\n\t}\n\n\treturn nil\n}\n","structuredPatch":[{"oldStart":102,"oldLines":7,"newStart":102,"newLines":7,"lines":[" \"PRAGMA journal_mode=WAL\","," \"PRAGMA synchronous=NORMAL\","," \"PRAGMA cache_size=-64000\", // 64MB cache","- \"PRAGMA busy_timeout=5000\",","+ \"PRAGMA busy_timeout=60000\","," }"," for _, pragma := range pragmas {"," if _, err := sa.db.Exec(pragma); err != nil {"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"94ecafb1-e6a3-48e2-bfe6-f8d44e7872e4","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3a22cc93-0b68-43a4-963f-6c4264c043db","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Si41CcYiGJS7htJyRZAWE9","type":"message","role":"assistant","content":[{"type":"text","text":"**Fix 3: LDAP sync race condition** — AddUserIfNotExists + ldap.go change"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1320,"cache_read_input_tokens":66713,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1320},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6afAUESQvCcpF23cbnH","type":"assistant","uuid":"bd80c015-d925-4dda-9ef4-c17de72e4519","timestamp":"2026-03-16T10:13:04.234Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"d8c87700-46e1-4aed-bb74-9a129f330bca","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"},"internal/repository/user.go":{"backupFileName":"0ad3b819db3027b0@v1","version":1,"backupTime":"2026-03-16T10:13:08.823Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"bd80c015-d925-4dda-9ef4-c17de72e4519","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Si41CcYiGJS7htJyRZAWE9","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01NqcSrvVk89yR55JTjfVyqJ","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/user.go","old_string":"func (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {","new_string":"// AddUserIfNotExists inserts a user only if the username does not already exist.\n// Uses INSERT OR IGNORE to avoid UNIQUE constraint errors when a user is\n// concurrently created (e.g., by a login while LDAP sync is running).\n// Unlike AddUser, this intentionally skips the deprecated default metrics config insertion.\nfunc (r *UserRepository) AddUserIfNotExists(user *schema.User) error {\n\trolesJson, _ := json.Marshal(user.Roles)\n\tprojectsJson, _ := json.Marshal(user.Projects)\n\n\tcols := \"username, name, roles, projects, ldap\"\n\t_, err := r.DB.Exec(\n\t\t`INSERT OR IGNORE INTO hpc_user (`+cols+`) VALUES (?, ?, ?, ?, ?)`,\n\t\tuser.Username, user.Name, string(rolesJson), string(projectsJson), int(user.AuthSource))\n\treturn err\n}\n\nfunc (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {"},"caller":{"type":"direct"}}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1320,"cache_read_input_tokens":66713,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1320},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6afAUESQvCcpF23cbnH","type":"assistant","uuid":"d8c87700-46e1-4aed-bb74-9a129f330bca","timestamp":"2026-03-16T10:13:08.817Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d8c87700-46e1-4aed-bb74-9a129f330bca","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01NqcSrvVk89yR55JTjfVyqJ","toolUseID":"toolu_01NqcSrvVk89yR55JTjfVyqJ","timestamp":"2026-03-16T10:13:08.825Z","uuid":"313b3b15-2243-427f-9e46-746efe480339","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d8c87700-46e1-4aed-bb74-9a129f330bca","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01NqcSrvVk89yR55JTjfVyqJ","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/user.go has been updated successfully."}]},"uuid":"1dcd7d16-6392-4be2-b84d-063eef53646b","timestamp":"2026-03-16T10:13:08.825Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/user.go","oldString":"func (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {","newString":"// AddUserIfNotExists inserts a user only if the username does not already exist.\n// Uses INSERT OR IGNORE to avoid UNIQUE constraint errors when a user is\n// concurrently created (e.g., by a login while LDAP sync is running).\n// Unlike AddUser, this intentionally skips the deprecated default metrics config insertion.\nfunc (r *UserRepository) AddUserIfNotExists(user *schema.User) error {\n\trolesJson, _ := json.Marshal(user.Roles)\n\tprojectsJson, _ := json.Marshal(user.Projects)\n\n\tcols := \"username, name, roles, projects, ldap\"\n\t_, err := r.DB.Exec(\n\t\t`INSERT OR IGNORE INTO hpc_user (`+cols+`) VALUES (?, ?, ?, ?, ?)`,\n\t\tuser.Username, user.Name, string(rolesJson), string(projectsJson), int(user.AuthSource))\n\treturn err\n}\n\nfunc (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\npackage repository\n\nimport (\n\t\"context\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"errors\"\n\t\"fmt\"\n\t\"reflect\"\n\t\"strings\"\n\t\"sync\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n\t\"github.com/jmoiron/sqlx\"\n\t\"golang.org/x/crypto/bcrypt\"\n)\n\n// Authentication and Role System:\n//\n// ClusterCockpit supports multiple authentication sources:\n// - Local: Username/password stored in database (password hashed with bcrypt)\n// - LDAP: External LDAP/Active Directory authentication\n// - JWT: Token-based authentication for API access\n//\n// Role Hierarchy (from highest to lowest privilege):\n// 1. \"admin\" - Full system access, can manage all users and jobs\n// 2. \"support\" - Can view all jobs but limited management capabilities\n// 3. \"manager\" - Can manage specific projects and their users\n// 4. \"api\" - Programmatic access for job submission/management\n// 5. \"user\" - Default role, can only view own jobs\n//\n// Project Association:\n// - Managers have a list of projects they oversee\n// - Regular users' project membership is determined by job data\n// - Managers can view/manage all jobs within their projects\n\nvar (\n\tuserRepoOnce sync.Once\n\tuserRepoInstance *UserRepository\n)\n\ntype UserRepository struct {\n\tDB *sqlx.DB\n\tdriver string\n}\n\nfunc GetUserRepository() *UserRepository {\n\tuserRepoOnce.Do(func() {\n\t\tdb := GetConnection()\n\n\t\tuserRepoInstance = &UserRepository{\n\t\t\tDB: db.DB,\n\t\t\tdriver: db.Driver,\n\t\t}\n\t})\n\treturn userRepoInstance\n}\n\n// GetUser retrieves a user by username from the database.\n// Returns the complete user record including hashed password, roles, and projects.\n// Password field contains bcrypt hash for local auth users, empty for LDAP users.\nfunc (r *UserRepository) GetUser(username string) (*schema.User, error) {\n\tuser := &schema.User{Username: username}\n\tvar hashedPassword, name, rawRoles, email, rawProjects sql.NullString\n\tif err := sq.Select(\"password\", \"ldap\", \"name\", \"roles\", \"email\", \"projects\").From(\"hpc_user\").\n\t\tWhere(\"hpc_user.username = ?\", username).RunWith(r.DB).\n\t\tQueryRow().Scan(&hashedPassword, &user.AuthSource, &name, &rawRoles, &email, &rawProjects); err != nil {\n\t\tcclog.Warnf(\"Error while querying user '%v' from database\", username)\n\t\treturn nil, err\n\t}\n\n\tuser.Password = hashedPassword.String\n\tuser.Name = name.String\n\tuser.Email = email.String\n\tif rawRoles.Valid {\n\t\tif err := json.Unmarshal([]byte(rawRoles.String), &user.Roles); err != nil {\n\t\t\tcclog.Warn(\"Error while unmarshaling raw roles from DB\")\n\t\t\treturn nil, err\n\t\t}\n\t}\n\tif rawProjects.Valid {\n\t\tif err := json.Unmarshal([]byte(rawProjects.String), &user.Projects); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\t}\n\n\treturn user, nil\n}\n\nfunc (r *UserRepository) GetLdapUsernames() ([]string, error) {\n\tvar users []string\n\trows, err := r.DB.Query(`SELECT username FROM hpc_user WHERE hpc_user.ldap = 1`)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying usernames\")\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tfor rows.Next() {\n\t\tvar username string\n\t\tif err := rows.Scan(&username); err != nil {\n\t\t\tcclog.Warnf(\"Error while scanning for user '%s'\", username)\n\t\t\treturn nil, err\n\t\t}\n\n\t\tusers = append(users, username)\n\t}\n\n\treturn users, nil\n}\n\n// AddUser creates a new user in the database.\n// Passwords are automatically hashed with bcrypt before storage.\n// Auth source determines authentication method (local, LDAP, etc.).\n//\n// Required fields: Username, Roles\n// Optional fields: Name, Email, Password, Projects, AuthSource\nfunc (r *UserRepository) AddUser(user *schema.User) error {\n\trolesJson, _ := json.Marshal(user.Roles)\n\tprojectsJson, _ := json.Marshal(user.Projects)\n\n\tcols := []string{\"username\", \"roles\", \"projects\"}\n\tvals := []any{user.Username, string(rolesJson), string(projectsJson)}\n\n\tif user.Name != \"\" {\n\t\tcols = append(cols, \"name\")\n\t\tvals = append(vals, user.Name)\n\t}\n\tif user.Email != \"\" {\n\t\tcols = append(cols, \"email\")\n\t\tvals = append(vals, user.Email)\n\t}\n\tif user.Password != \"\" {\n\t\tpassword, err := bcrypt.GenerateFromPassword([]byte(user.Password), bcrypt.DefaultCost)\n\t\tif err != nil {\n\t\t\tcclog.Error(\"Error while encrypting new user password\")\n\t\t\treturn err\n\t\t}\n\t\tcols = append(cols, \"password\")\n\t\tvals = append(vals, string(password))\n\t}\n\tif user.AuthSource != -1 {\n\t\tcols = append(cols, \"ldap\")\n\t\tvals = append(vals, int(user.AuthSource))\n\t}\n\n\tif _, err := sq.Insert(\"hpc_user\").Columns(cols...).Values(vals...).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"Error while inserting new user '%v' into DB\", user.Username)\n\t\treturn err\n\t}\n\n\tcclog.Infof(\"new user %#v created (roles: %s, auth-source: %d, projects: %s)\", user.Username, rolesJson, user.AuthSource, projectsJson)\n\n\t// DEPRECATED: SUPERSEDED BY NEW USER CONFIG - userConfig.go / web.go\n\tdefaultMetricsCfg, err := config.LoadDefaultMetricsConfig()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error loading default metrics config: %v\", err)\n\t} else if defaultMetricsCfg != nil {\n\t\tfor _, cluster := range defaultMetricsCfg.Clusters {\n\t\t\tmetricsArray := config.ParseMetricsString(cluster.DefaultMetrics)\n\t\t\tmetricsJSON, err := json.Marshal(metricsArray)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error marshaling default metrics for cluster %s: %v\", cluster.Name, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\t// Note: StatisticsTable now has different key (metricConfig_jobViewTableMetrics): Not updated here.\n\t\t\tconfKey := \"metricConfig_jobViewPlotMetrics:\" + cluster.Name\n\t\t\tif _, err := sq.Insert(\"configuration\").\n\t\t\t\tColumns(\"username\", \"confkey\", \"value\").\n\t\t\t\tValues(user.Username, confKey, string(metricsJSON)).\n\t\t\t\tRunWith(r.DB).Exec(); err != nil {\n\t\t\t\tcclog.Errorf(\"Error inserting default job view metrics for user %s and cluster %s: %v\", user.Username, cluster.Name, err)\n\t\t\t} else {\n\t\t\t\tcclog.Infof(\"Default job view metrics for user %s and cluster %s set to %s\", user.Username, cluster.Name, string(metricsJSON))\n\t\t\t}\n\t\t}\n\t}\n\t// END DEPRECATION\n\n\treturn nil\n}\n\nfunc (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {\n\t// user contains updated info -> Apply to dbUser\n\t// --- Simple Name Update ---\n\tif dbUser.Name != user.Name {\n\t\tif _, err := sq.Update(\"hpc_user\").Set(\"name\", user.Name).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec(); err != nil {\n\t\t\tcclog.Errorf(\"error while updating name of user '%s'\", user.Username)\n\t\t\treturn err\n\t\t}\n\t}\n\n\t// --- Def Helpers ---\n\t// Helper to update roles\n\tupdateRoles := func(roles []string) error {\n\t\trolesJSON, _ := json.Marshal(roles)\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"roles\", rolesJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// Helper to update projects\n\tupdateProjects := func(projects []string) error {\n\t\tprojectsJSON, _ := json.Marshal(projects)\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", projectsJSON).Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// Helper to clear projects\n\tclearProjects := func() error {\n\t\t_, err := sq.Update(\"hpc_user\").Set(\"projects\", \"[]\").Where(\"hpc_user.username = ?\", dbUser.Username).RunWith(r.DB).Exec()\n\t\treturn err\n\t}\n\n\t// --- Manager Role Handling ---\n\tif dbUser.HasRole(schema.RoleManager) && user.HasRole(schema.RoleManager) && !reflect.DeepEqual(dbUser.Projects, user.Projects) {\n\t\t// Existing Manager: update projects\n\t\tif err := updateProjects(user.Projects); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleUser) && user.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n\t\t// New Manager: update roles and projects\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif err := updateProjects(user.Projects); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleManager) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleManager}) {\n\t\t// Remove Manager: update roles and clear projects\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t\tif err := clearProjects(); err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\t// --- Support Role Handling ---\n\tif dbUser.HasRole(schema.RoleUser) && dbUser.HasNotRoles([]schema.Role{schema.RoleSupport}) &&\n\t\tuser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin}) {\n\t\t// New Support: update roles\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t} else if dbUser.HasRole(schema.RoleSupport) && user.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport}) {\n\t\t// Remove Support: update roles\n\t\tif err := updateRoles(user.Roles); err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (r *UserRepository) DelUser(username string) error {\n\t_, err := r.DB.Exec(`DELETE FROM hpc_user WHERE hpc_user.username = ?`, username)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while deleting user '%s' from DB\", username)\n\t\treturn err\n\t}\n\tcclog.Infof(\"deleted user '%s' from DB\", username)\n\treturn nil\n}\n\nfunc (r *UserRepository) ListUsers(specialsOnly bool) ([]*schema.User, error) {\n\tq := sq.Select(\"username\", \"name\", \"email\", \"roles\", \"projects\").From(\"hpc_user\")\n\tif specialsOnly {\n\t\tq = q.Where(\"(roles != '[\\\"user\\\"]' AND roles != '[]')\")\n\t}\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying user list\")\n\t\treturn nil, err\n\t}\n\n\tusers := make([]*schema.User, 0)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\trawroles := \"\"\n\t\trawprojects := \"\"\n\t\tuser := &schema.User{}\n\t\tvar name, email sql.NullString\n\t\tif err := rows.Scan(&user.Username, &name, &email, &rawroles, &rawprojects); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning user list\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif err := json.Unmarshal([]byte(rawroles), &user.Roles); err != nil {\n\t\t\tcclog.Warn(\"Error while unmarshaling raw role list\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif err := json.Unmarshal([]byte(rawprojects), &user.Projects); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\n\t\tuser.Name = name.String\n\t\tuser.Email = email.String\n\t\tusers = append(users, user)\n\t}\n\treturn users, nil\n}\n\n// AddRole adds a role to a user's role list.\n// Role string is automatically lowercased.\n// Valid roles: admin, support, manager, api, user\n//\n// Returns error if:\n// - User doesn't exist\n// - Role is invalid\n// - User already has the role\nfunc (r *UserRepository) AddRole(\n\tctx context.Context,\n\tusername string,\n\tqueryrole string,\n) error {\n\tnewRole := strings.ToLower(queryrole)\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n\t\treturn err\n\t}\n\n\texists, valid := user.HasValidRole(newRole)\n\n\tif !valid {\n\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", newRole)\n\t}\n\tif exists {\n\t\treturn fmt.Errorf(\"user %v already has role %v\", username, newRole)\n\t}\n\n\troles, _ := json.Marshal(append(user.Roles, newRole))\n\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", roles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"error while adding new role for user '%s'\", user.Username)\n\t\treturn err\n\t}\n\treturn nil\n}\n\n// RemoveRole removes a role from a user's role list.\n//\n// Special rules:\n// - Cannot remove \"manager\" role while user has assigned projects\n// - Must remove all projects first before removing manager role\nfunc (r *UserRepository) RemoveRole(ctx context.Context, username string, queryrole string) error {\n\toldRole := strings.ToLower(queryrole)\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\tcclog.Warnf(\"Could not load user '%s'\", username)\n\t\treturn err\n\t}\n\n\texists, valid := user.HasValidRole(oldRole)\n\n\tif !valid {\n\t\treturn fmt.Errorf(\"supplied role is no valid option : %v\", oldRole)\n\t}\n\tif !exists {\n\t\treturn fmt.Errorf(\"role already deleted for user '%v': %v\", username, oldRole)\n\t}\n\n\tif oldRole == schema.GetRoleString(schema.RoleManager) && len(user.Projects) != 0 {\n\t\treturn fmt.Errorf(\"cannot remove role 'manager' while user %s still has assigned project(s) : %v\", username, user.Projects)\n\t}\n\n\tvar newroles []string\n\tfor _, r := range user.Roles {\n\t\tif r != oldRole {\n\t\t\tnewroles = append(newroles, r) // Append all roles not matching requested to be deleted role\n\t\t}\n\t}\n\n\tmroles, _ := json.Marshal(newroles)\n\tif _, err := sq.Update(\"hpc_user\").Set(\"roles\", mroles).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\tcclog.Errorf(\"Error while removing role for user '%s'\", user.Username)\n\t\treturn err\n\t}\n\treturn nil\n}\n\n// AddProject assigns a project to a manager user.\n// Only users with the \"manager\" role can have assigned projects.\n//\n// Returns error if:\n// - User doesn't have manager role\n// - User already manages the project\nfunc (r *UserRepository) AddProject(\n\tctx context.Context,\n\tusername string,\n\tproject string,\n) error {\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif !user.HasRole(schema.RoleManager) {\n\t\treturn fmt.Errorf(\"user '%s' is not a manager\", username)\n\t}\n\n\tif user.HasProject(project) {\n\t\treturn fmt.Errorf(\"user '%s' already manages project '%s'\", username, project)\n\t}\n\n\tprojects, _ := json.Marshal(append(user.Projects, project))\n\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", projects).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\nfunc (r *UserRepository) RemoveProject(ctx context.Context, username string, project string) error {\n\tuser, err := r.GetUser(username)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif !user.HasRole(schema.RoleManager) {\n\t\treturn fmt.Errorf(\"user '%#v' is not a manager\", username)\n\t}\n\n\tif !user.HasProject(project) {\n\t\treturn fmt.Errorf(\"user '%#v': Cannot remove project '%#v' - Does not match\", username, project)\n\t}\n\n\tvar exists bool\n\tvar newprojects []string\n\tfor _, p := range user.Projects {\n\t\tif p != project {\n\t\t\tnewprojects = append(newprojects, p) // Append all projects not matching requested to be deleted project\n\t\t} else {\n\t\t\texists = true\n\t\t}\n\t}\n\n\tif exists {\n\t\tvar result any\n\t\tif len(newprojects) == 0 {\n\t\t\tresult = \"[]\"\n\t\t} else {\n\t\t\tresult, _ = json.Marshal(newprojects)\n\t\t}\n\t\tif _, err := sq.Update(\"hpc_user\").Set(\"projects\", result).Where(\"hpc_user.username = ?\", username).RunWith(r.DB).Exec(); err != nil {\n\t\t\treturn err\n\t\t}\n\t\treturn nil\n\t} else {\n\t\treturn fmt.Errorf(\"user %s already does not manage project %s\", username, project)\n\t}\n}\n\ntype ContextKey string\n\nconst ContextUserKey ContextKey = \"user\"\n\nfunc GetUserFromContext(ctx context.Context) *schema.User {\n\tx := ctx.Value(ContextUserKey)\n\tif x == nil {\n\t\tcclog.Warnf(\"no user retrieved from context\")\n\t\treturn nil\n\t}\n\t// cclog.Infof(\"user retrieved from context: %v\", x.(*schema.User))\n\treturn x.(*schema.User)\n}\n\nfunc (r *UserRepository) FetchUserInCtx(ctx context.Context, username string) (*model.User, error) {\n\tme := GetUserFromContext(ctx)\n\tif me != nil && me.Username != username &&\n\t\tme.HasNotRoles([]schema.Role{schema.RoleAdmin, schema.RoleSupport, schema.RoleManager}) {\n\t\treturn nil, errors.New(\"forbidden\")\n\t}\n\n\tuser := &model.User{Username: username}\n\tvar name, email sql.NullString\n\tif err := sq.Select(\"name\", \"email\").From(\"hpc_user\").Where(\"hpc_user.username = ?\", username).\n\t\tRunWith(r.DB).QueryRow().Scan(&name, &email); err != nil {\n\t\tif err == sql.ErrNoRows {\n\t\t\t/* This warning will be logged *often* for non-local users, i.e. users mentioned only in job-table or archive, */\n\t\t\t/* since FetchUser will be called to retrieve full name and mail for every job in query/list\t\t\t\t\t\t\t\t\t */\n\t\t\t// cclog.Warnf(\"User '%s' Not found in DB\", username)\n\t\t\treturn nil, nil\n\t\t}\n\n\t\tcclog.Warnf(\"Error while fetching user '%s'\", username)\n\t\treturn nil, err\n\t}\n\n\tuser.Name = name.String\n\tuser.Email = email.String\n\treturn user, nil\n}\n","structuredPatch":[{"oldStart":188,"oldLines":6,"newStart":188,"newLines":21,"lines":[" return nil"," }"," ","+// AddUserIfNotExists inserts a user only if the username does not already exist.","+// Uses INSERT OR IGNORE to avoid UNIQUE constraint errors when a user is","+// concurrently created (e.g., by a login while LDAP sync is running).","+// Unlike AddUser, this intentionally skips the deprecated default metrics config insertion.","+func (r *UserRepository) AddUserIfNotExists(user *schema.User) error {","+ rolesJson, _ := json.Marshal(user.Roles)","+ projectsJson, _ := json.Marshal(user.Projects)","+","+ cols := \"username, name, roles, projects, ldap\"","+ _, err := r.DB.Exec(","+ `INSERT OR IGNORE INTO hpc_user (`+cols+`) VALUES (?, ?, ?, ?, ?)`,","+ user.Username, user.Name, string(rolesJson), string(projectsJson), int(user.AuthSource))","+ return err","+}","+"," func (r *UserRepository) UpdateUser(dbUser *schema.User, user *schema.User) error {"," // user contains updated info -> Apply to dbUser"," // --- Simple Name Update ---"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"d8c87700-46e1-4aed-bb74-9a129f330bca","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"1dcd7d16-6392-4be2-b84d-063eef53646b","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Si41CcYiGJS7htJyRZAWE9","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01YW1p3Nkhq4s298ehCw3Fqn","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/auth/ldap.go","old_string":"\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUser(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}","new_string":"\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUserIfNotExists(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1320,"cache_read_input_tokens":66713,"output_tokens":670,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1320,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6afAUESQvCcpF23cbnH","type":"assistant","uuid":"3c5446a0-7ebb-4e4d-a628-43081fdf6210","timestamp":"2026-03-16T10:13:11.900Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3c5446a0-7ebb-4e4d-a628-43081fdf6210","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01YW1p3Nkhq4s298ehCw3Fqn","toolUseID":"toolu_01YW1p3Nkhq4s298ehCw3Fqn","timestamp":"2026-03-16T10:13:11.919Z","uuid":"a8dd1f80-ed87-4690-9f9f-3cf8805f1647","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3c5446a0-7ebb-4e4d-a628-43081fdf6210","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01YW1p3Nkhq4s298ehCw3Fqn","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/auth/ldap.go has been updated successfully."}]},"uuid":"60b9808e-1da2-4813-8bfa-104d2aefc0d1","timestamp":"2026-03-16T10:13:11.919Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/auth/ldap.go","oldString":"\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUser(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}","newString":"\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUserIfNotExists(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage auth\n\nimport (\n\t\"fmt\"\n\t\"net\"\n\t\"net/http\"\n\t\"os\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/go-ldap/ldap/v3\"\n)\n\ntype LdapConfig struct {\n\tURL string `json:\"url\"`\n\tUserBase string `json:\"user-base\"`\n\tSearchDN string `json:\"search-dn\"`\n\tUserBind string `json:\"user-bind\"`\n\tUserFilter string `json:\"user-filter\"`\n\tUserAttr string `json:\"username-attr\"`\n\tUIDAttr string `json:\"uid-attr\"`\n\tSyncInterval string `json:\"sync-interval\"` // Parsed using time.ParseDuration.\n\tSyncDelOldUsers bool `json:\"sync-del-old-users\"`\n\n\t// Should a non-existent user be added to the DB if user exists in ldap directory\n\tSyncUserOnLogin bool `json:\"sync-user-on-login\"`\n\tUpdateUserOnLogin bool `json:\"update-user-on-login\"`\n}\n\ntype LdapAuthenticator struct {\n\tsyncPassword string\n\tUserAttr string\n\tUIDAttr string\n}\n\nvar _ Authenticator = (*LdapAuthenticator)(nil)\n\nfunc (la *LdapAuthenticator) Init() error {\n\tla.syncPassword = os.Getenv(\"LDAP_ADMIN_PASSWORD\")\n\tif la.syncPassword == \"\" {\n\t\tcclog.Warn(\"environment variable 'LDAP_ADMIN_PASSWORD' not set (ldap sync will not work)\")\n\t}\n\n\tif Keys.LdapConfig.UserAttr != \"\" {\n\t\tla.UserAttr = Keys.LdapConfig.UserAttr\n\t} else {\n\t\tla.UserAttr = \"gecos\"\n\t}\n\n\tif Keys.LdapConfig.UIDAttr != \"\" {\n\t\tla.UIDAttr = Keys.LdapConfig.UIDAttr\n\t} else {\n\t\tla.UIDAttr = \"uid\"\n\t}\n\n\treturn nil\n}\n\nfunc (la *LdapAuthenticator) CanLogin(\n\tuser *schema.User,\n\tusername string,\n\trw http.ResponseWriter,\n\tr *http.Request,\n) (*schema.User, bool) {\n\tlc := Keys.LdapConfig\n\n\tif user != nil {\n\t\tif user.AuthSource == schema.AuthViaLDAP {\n\t\t\treturn user, true\n\t\t}\n\t} else if lc.SyncUserOnLogin {\n\t\tl, err := la.getLdapConnection(true)\n\t\tif err != nil {\n\t\t\tcclog.Error(\"LDAP connection error\")\n\t\t\treturn nil, false\n\t\t}\n\t\tdefer l.Close()\n\n\t\t// Search for the given username\n\t\tsearchRequest := ldap.NewSearchRequest(\n\t\t\tlc.UserBase,\n\t\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n\t\t\tfmt.Sprintf(\"(&%s(%s=%s))\", lc.UserFilter, la.UIDAttr, ldap.EscapeFilter(username)),\n\t\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil)\n\n\t\tsr, err := l.Search(searchRequest)\n\t\tif err != nil {\n\t\t\tcclog.Warn(err)\n\t\t\treturn nil, false\n\t\t}\n\n\t\tif len(sr.Entries) != 1 {\n\t\t\tcclog.Warn(\"LDAP: User does not exist or too many entries returned\")\n\t\t\treturn nil, false\n\t\t}\n\n\t\tentry := sr.Entries[0]\n\t\tuser = &schema.User{\n\t\t\tUsername: username,\n\t\t\tName: entry.GetAttributeValue(la.UserAttr),\n\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n\t\t\tProjects: make([]string, 0),\n\t\t\tAuthType: schema.AuthSession,\n\t\t\tAuthSource: schema.AuthViaLDAP,\n\t\t}\n\n\t\thandleLdapUser(user)\n\t\treturn user, true\n\t}\n\n\treturn nil, false\n}\n\nfunc (la *LdapAuthenticator) Login(\n\tuser *schema.User,\n\trw http.ResponseWriter,\n\tr *http.Request,\n) (*schema.User, error) {\n\tl, err := la.getLdapConnection(false)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting ldap connection\")\n\t\treturn nil, err\n\t}\n\tdefer l.Close()\n\n\tuserDn := strings.ReplaceAll(Keys.LdapConfig.UserBind, \"{username}\", ldap.EscapeDN(user.Username))\n\tif err := l.Bind(userDn, r.FormValue(\"password\")); err != nil {\n\t\tcclog.Errorf(\"AUTH/LDAP > Authentication for user %s failed: %v\",\n\t\t\tuser.Username, err)\n\t\treturn nil, fmt.Errorf(\"Authentication failed\")\n\t}\n\n\treturn user, nil\n}\n\nfunc (la *LdapAuthenticator) Sync() error {\n\tconst InDB int = 1\n\tconst InLdap int = 2\n\tconst InBoth int = 3\n\tur := repository.GetUserRepository()\n\tlc := Keys.LdapConfig\n\n\tusers := map[string]int{}\n\tusernames, err := ur.GetLdapUsernames()\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tfor _, username := range usernames {\n\t\tusers[username] = InDB\n\t}\n\n\tl, err := la.getLdapConnection(true)\n\tif err != nil {\n\t\tcclog.Error(\"LDAP connection error\")\n\t\treturn err\n\t}\n\tdefer l.Close()\n\n\tldapResults, err := l.Search(ldap.NewSearchRequest(\n\t\tlc.UserBase,\n\t\tldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,\n\t\tlc.UserFilter,\n\t\t[]string{\"dn\", la.UIDAttr, la.UserAttr}, nil))\n\tif err != nil {\n\t\tcclog.Warn(\"LDAP search error\")\n\t\treturn err\n\t}\n\n\tnewnames := map[string]string{}\n\tfor _, entry := range ldapResults.Entries {\n\t\tusername := entry.GetAttributeValue(la.UIDAttr)\n\t\tif username == \"\" {\n\t\t\treturn fmt.Errorf(\"no attribute '%s'\", la.UIDAttr)\n\t\t}\n\n\t\t_, ok := users[username]\n\t\tif !ok {\n\t\t\tusers[username] = InLdap\n\t\t\tnewnames[username] = entry.GetAttributeValue(la.UserAttr)\n\t\t} else {\n\t\t\tusers[username] = InBoth\n\t\t}\n\t}\n\n\tfor username, where := range users {\n\t\tif where == InDB && lc.SyncDelOldUsers {\n\t\t\tif err := ur.DelUser(username); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Delete from DB failed: %v\", username, err)\n\t\t\t\treturn err\n\t\t\t}\n\t\t\tcclog.Debugf(\"sync: remove %v (does not show up in LDAP anymore)\", username)\n\t\t} else if where == InLdap {\n\t\t\tname := newnames[username]\n\n\t\t\tuser := &schema.User{\n\t\t\t\tUsername: username,\n\t\t\t\tName: name,\n\t\t\t\tRoles: []string{schema.GetRoleString(schema.RoleUser)},\n\t\t\t\tProjects: make([]string, 0),\n\t\t\t\tAuthSource: schema.AuthViaLDAP,\n\t\t\t}\n\n\t\t\tcclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)\n\t\t\tif err := ur.AddUser(user); err != nil {\n\t\t\t\tcclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)\n\t\t\t\treturn err\n\t\t\t}\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (la *LdapAuthenticator) getLdapConnection(admin bool) (*ldap.Conn, error) {\n\tlc := Keys.LdapConfig\n\tconn, err := ldap.DialURL(lc.URL,\n\t\tldap.DialWithDialer(&net.Dialer{Timeout: 10 * time.Second}))\n\tif err != nil {\n\t\tcclog.Warn(\"LDAP URL dial failed\")\n\t\treturn nil, err\n\t}\n\tconn.SetTimeout(30 * time.Second)\n\n\tif admin {\n\t\tif err := conn.Bind(lc.SearchDN, la.syncPassword); err != nil {\n\t\t\tconn.Close()\n\t\t\tcclog.Warn(\"LDAP connection bind failed\")\n\t\t\treturn nil, err\n\t\t}\n\t}\n\n\treturn conn, nil\n}\n","structuredPatch":[{"oldStart":210,"oldLines":7,"newStart":210,"newLines":7,"lines":[" }"," "," cclog.Debugf(\"sync: add %v (name: %v, roles: [user], ldap: true)\", username, name)","- if err := ur.AddUser(user); err != nil {","+ if err := ur.AddUserIfNotExists(user); err != nil {"," cclog.Errorf(\"User '%s' LDAP: Insert into DB failed\", username)"," return err"," }"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"3c5446a0-7ebb-4e4d-a628-43081fdf6210","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"60b9808e-1da2-4813-8bfa-104d2aefc0d1","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01GoH4v9tzVorrW7exUcgDbe","type":"message","role":"assistant","content":[{"type":"text","text":"**Fix 2: Batch node state updates** — add `BatchUpdateNodeStates` + update callers"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":933,"cache_read_input_tokens":68033,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":933},"output_tokens":4,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6ag1CuFAMnWQaJ4zzzt","type":"assistant","uuid":"f50efabf-a34d-4969-93fa-de94d4f3a97a","timestamp":"2026-03-16T10:13:14.996Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"7956bad8-245f-4be0-b117-98737a7e1662","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"},"internal/repository/user.go":{"backupFileName":"0ad3b819db3027b0@v1","version":1,"backupTime":"2026-03-16T10:13:08.823Z"},"internal/auth/ldap.go":{"backupFileName":"eb6b6551a5c72cf4@v1","version":1,"backupTime":"2026-03-16T10:13:11.918Z"},"internal/repository/node.go":{"backupFileName":"01489fcb081061c5@v1","version":1,"backupTime":"2026-03-16T10:13:26.415Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"f50efabf-a34d-4969-93fa-de94d4f3a97a","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01GoH4v9tzVorrW7exUcgDbe","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01SpSpXZdAKM2U8sZBhacLFJ","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/node.go","old_string":"// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {","new_string":"// NodeStateUpdate holds the data needed to update one node's state in a batch operation.\ntype NodeStateUpdate struct {\n\tHostname string\n\tCluster string\n\tNodeState *schema.NodeStateDB\n}\n\n// BatchUpdateNodeStates inserts node state rows for multiple nodes in a single transaction.\n// For each node, it looks up (or creates) the node row, then inserts the state row.\n// This reduces lock acquisitions from 2*N to 1 for N nodes.\nfunc (r *NodeRepository) BatchUpdateNodeStates(updates []NodeStateUpdate) error {\n\ttx, err := r.DB.Beginx()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: begin transaction: %w\", err)\n\t}\n\tdefer tx.Rollback()\n\n\tstmtLookup, err := tx.Preparex(\"SELECT id FROM node WHERE hostname = ? AND cluster = ?\")\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare lookup: %w\", err)\n\t}\n\tdefer stmtLookup.Close()\n\n\tstmtInsertNode, err := tx.PrepareNamed(NamedNodeInsert)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare node insert: %w\", err)\n\t}\n\tdefer stmtInsertNode.Close()\n\n\tstmtInsertState, err := tx.PrepareNamed(NamedNodeStateInsert)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare state insert: %w\", err)\n\t}\n\tdefer stmtInsertState.Close()\n\n\tfor _, u := range updates {\n\t\tvar id int64\n\t\tif err := stmtLookup.QueryRow(u.Hostname, u.Cluster).Scan(&id); err != nil {\n\t\t\tif err == sql.ErrNoRows {\n\t\t\t\tsubcluster, scErr := archive.GetSubClusterByNode(u.Cluster, u.Hostname)\n\t\t\t\tif scErr != nil {\n\t\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: subcluster lookup for '%s' in '%s': %v\", u.Hostname, u.Cluster, scErr)\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tnode := schema.NodeDB{\n\t\t\t\t\tHostname: u.Hostname, Cluster: u.Cluster, SubCluster: subcluster,\n\t\t\t\t}\n\t\t\t\tres, insertErr := stmtInsertNode.Exec(&node)\n\t\t\t\tif insertErr != nil {\n\t\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: insert node '%s': %v\", u.Hostname, insertErr)\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tid, _ = res.LastInsertId()\n\t\t\t} else {\n\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: lookup node '%s': %v\", u.Hostname, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t}\n\n\t\tu.NodeState.NodeID = id\n\t\tif _, err := stmtInsertState.Exec(u.NodeState); err != nil {\n\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: insert state for '%s': %v\", u.Hostname, err)\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: commit: %w\", err)\n\t}\n\treturn nil\n}\n\n// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":933,"cache_read_input_tokens":68033,"output_tokens":1045,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":933,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6ag1CuFAMnWQaJ4zzzt","type":"assistant","uuid":"7956bad8-245f-4be0-b117-98737a7e1662","timestamp":"2026-03-16T10:13:26.400Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"7956bad8-245f-4be0-b117-98737a7e1662","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01SpSpXZdAKM2U8sZBhacLFJ","toolUseID":"toolu_01SpSpXZdAKM2U8sZBhacLFJ","timestamp":"2026-03-16T10:13:26.419Z","uuid":"2d8929b5-19bf-4fef-bd1f-34081e8b96cb","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"7956bad8-245f-4be0-b117-98737a7e1662","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SpSpXZdAKM2U8sZBhacLFJ","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/node.go has been updated successfully."}]},"uuid":"3ffb462b-6cfb-46e9-ae85-f08a006b0ead","timestamp":"2026-03-16T10:13:26.419Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/node.go","oldString":"// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {","newString":"// NodeStateUpdate holds the data needed to update one node's state in a batch operation.\ntype NodeStateUpdate struct {\n\tHostname string\n\tCluster string\n\tNodeState *schema.NodeStateDB\n}\n\n// BatchUpdateNodeStates inserts node state rows for multiple nodes in a single transaction.\n// For each node, it looks up (or creates) the node row, then inserts the state row.\n// This reduces lock acquisitions from 2*N to 1 for N nodes.\nfunc (r *NodeRepository) BatchUpdateNodeStates(updates []NodeStateUpdate) error {\n\ttx, err := r.DB.Beginx()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: begin transaction: %w\", err)\n\t}\n\tdefer tx.Rollback()\n\n\tstmtLookup, err := tx.Preparex(\"SELECT id FROM node WHERE hostname = ? AND cluster = ?\")\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare lookup: %w\", err)\n\t}\n\tdefer stmtLookup.Close()\n\n\tstmtInsertNode, err := tx.PrepareNamed(NamedNodeInsert)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare node insert: %w\", err)\n\t}\n\tdefer stmtInsertNode.Close()\n\n\tstmtInsertState, err := tx.PrepareNamed(NamedNodeStateInsert)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: prepare state insert: %w\", err)\n\t}\n\tdefer stmtInsertState.Close()\n\n\tfor _, u := range updates {\n\t\tvar id int64\n\t\tif err := stmtLookup.QueryRow(u.Hostname, u.Cluster).Scan(&id); err != nil {\n\t\t\tif err == sql.ErrNoRows {\n\t\t\t\tsubcluster, scErr := archive.GetSubClusterByNode(u.Cluster, u.Hostname)\n\t\t\t\tif scErr != nil {\n\t\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: subcluster lookup for '%s' in '%s': %v\", u.Hostname, u.Cluster, scErr)\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tnode := schema.NodeDB{\n\t\t\t\t\tHostname: u.Hostname, Cluster: u.Cluster, SubCluster: subcluster,\n\t\t\t\t}\n\t\t\t\tres, insertErr := stmtInsertNode.Exec(&node)\n\t\t\t\tif insertErr != nil {\n\t\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: insert node '%s': %v\", u.Hostname, insertErr)\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t\tid, _ = res.LastInsertId()\n\t\t\t} else {\n\t\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: lookup node '%s': %v\", u.Hostname, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t}\n\n\t\tu.NodeState.NodeID = id\n\t\tif _, err := stmtInsertState.Exec(u.NodeState); err != nil {\n\t\t\tcclog.Errorf(\"BatchUpdateNodeStates: insert state for '%s': %v\", u.Hostname, err)\n\t\t}\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\treturn fmt.Errorf(\"BatchUpdateNodeStates: commit: %w\", err)\n\t}\n\treturn nil\n}\n\n// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"context\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"slices\"\n\t\"sort\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/graph/model\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/lrucache\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n\t\"github.com/jmoiron/sqlx\"\n)\n\nvar (\n\tnodeRepoOnce sync.Once\n\tnodeRepoInstance *NodeRepository\n)\n\ntype NodeRepository struct {\n\tDB *sqlx.DB\n\tstmtCache *sq.StmtCache\n\tcache *lrucache.Cache\n\tdriver string\n}\n\nfunc GetNodeRepository() *NodeRepository {\n\tnodeRepoOnce.Do(func() {\n\t\tdb := GetConnection()\n\n\t\tnodeRepoInstance = &NodeRepository{\n\t\t\tDB: db.DB,\n\t\t\tdriver: db.Driver,\n\n\t\t\tstmtCache: sq.NewStmtCache(db.DB),\n\t\t\tcache: lrucache.New(repoConfig.CacheSize),\n\t\t}\n\t})\n\treturn nodeRepoInstance\n}\n\n// latestStateCondition returns a squirrel expression that restricts node_state\n// rows to the latest per node_id using a correlated subquery.\n// Requires the query to join node and node_state tables.\nfunc latestStateCondition() sq.Sqlizer {\n\treturn sq.Expr(\n\t\t\"node_state.id = (SELECT ns2.id FROM node_state ns2 WHERE ns2.node_id = node.id ORDER BY ns2.time_stamp DESC LIMIT 1)\",\n\t)\n}\n\n// applyNodeFilters applies common NodeFilter conditions to a query that joins\n// the node and node_state tables with latestStateCondition.\nfunc applyNodeFilters(query sq.SelectBuilder, filters []*model.NodeFilter) sq.SelectBuilder {\n\tfor _, f := range filters {\n\t\tif f.Cluster != nil {\n\t\t\tquery = buildStringCondition(\"node.cluster\", f.Cluster, query)\n\t\t}\n\t\tif f.SubCluster != nil {\n\t\t\tquery = buildStringCondition(\"node.subcluster\", f.SubCluster, query)\n\t\t}\n\t\tif f.Hostname != nil {\n\t\t\tquery = buildStringCondition(\"node.hostname\", f.Hostname, query)\n\t\t}\n\t\tif f.SchedulerState != nil {\n\t\t\tquery = query.Where(\"node_state.node_state = ?\", f.SchedulerState)\n\t\t}\n\t\tif f.HealthState != nil {\n\t\t\tquery = query.Where(\"node_state.health_state = ?\", f.HealthState)\n\t\t}\n\t}\n\treturn query\n}\n\nfunc (r *NodeRepository) FetchMetadata(hostname string, cluster string) (map[string]string, error) {\n\tstart := time.Now()\n\n\tRawMetaData := make([]byte, 0)\n\n\tif err := sq.Select(\"node.meta_data\").From(\"node\").\n\t\tWhere(\"node.hostname = ?\", hostname).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tRunWith(r.stmtCache).QueryRow().Scan(&RawMetaData); err != nil {\n\t\tcclog.Warn(\"Error while scanning for node metadata\")\n\t\treturn nil, err\n\t}\n\n\tif len(RawMetaData) == 0 {\n\t\treturn nil, nil\n\t}\n\n\tMetaData := make(map[string]string)\n\n\tif err := json.Unmarshal(RawMetaData, &MetaData); err != nil {\n\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n\t\treturn nil, err\n\t}\n\n\tcclog.Debugf(\"Timer FetchMetadata %s\", time.Since(start))\n\treturn MetaData, nil\n}\n\nfunc (r *NodeRepository) GetNode(hostname string, cluster string, withMeta bool) (*schema.Node, error) {\n\tnode := &schema.Node{}\n\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.hostname = ?\", hostname).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tRunWith(r.DB).\n\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\tcclog.Warnf(\"Error while querying node '%s' from database: %v\", hostname, err)\n\t\treturn nil, err\n\t}\n\n\tif withMeta {\n\t\tvar err error\n\t\tvar meta map[string]string\n\t\tif meta, err = r.FetchMetadata(hostname, cluster); err != nil {\n\t\t\tcclog.Warnf(\"Error while fetching metadata for node '%s'\", hostname)\n\t\t\treturn nil, err\n\t\t}\n\t\tnode.MetaData = meta\n\t}\n\n\treturn node, nil\n}\n\nfunc (r *NodeRepository) GetNodeByID(id int64, withMeta bool) (*schema.Node, error) {\n\tnode := &schema.Node{}\n\tif err := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.id = ?\", id).\n\t\tRunWith(r.DB).\n\t\tQueryRow().Scan(&node.Hostname, &node.Cluster, &node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\tcclog.Warnf(\"Error while querying node ID '%d' from database: %v\", id, err)\n\t\treturn nil, err\n\t}\n\n\tif withMeta {\n\t\tmeta, metaErr := r.FetchMetadata(node.Hostname, node.Cluster)\n\t\tif metaErr != nil {\n\t\t\tcclog.Warnf(\"Error while fetching metadata for node ID '%d': %v\", id, metaErr)\n\t\t\treturn nil, metaErr\n\t\t}\n\t\tnode.MetaData = meta\n\t}\n\n\treturn node, nil\n}\n\n// const NamedNodeInsert string = `\n// INSERT INTO node (time_stamp, hostname, cluster, subcluster, node_state, health_state,\n//\n//\tcpus_allocated, cpus_total, memory_allocated, memory_total, gpus_allocated, gpus_total)\n//\tVALUES (:time_stamp, :hostname, :cluster, :subcluster, :node_state, :health_state,\n//\t:cpus_allocated, :cpus_total, :memory_allocated, :memory_total, :gpus_allocated, :gpus_total);`\n\nconst NamedNodeInsert string = `\nINSERT INTO node (hostname, cluster, subcluster)\n\tVALUES (:hostname, :cluster, :subcluster);`\n\n// AddNode adds a Node to the node table. This can be triggered by a node collector registration or\n// from a nodestate update from the job scheduler.\nfunc (r *NodeRepository) AddNode(node *schema.NodeDB) (int64, error) {\n\tvar err error\n\n\tres, err := r.DB.NamedExec(NamedNodeInsert, node)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while adding node '%v' to database\", node.Hostname)\n\t\treturn 0, err\n\t}\n\tnode.ID, err = res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while getting last insert id for node '%v' from database\", node.Hostname)\n\t\treturn 0, err\n\t}\n\n\treturn node.ID, nil\n}\n\nconst NamedNodeStateInsert string = `\nINSERT INTO node_state (time_stamp, node_state, health_state, health_metrics,\n\tcpus_allocated, memory_allocated, gpus_allocated, jobs_running, node_id)\n\tVALUES (:time_stamp, :node_state, :health_state, :health_metrics,\n\t:cpus_allocated, :memory_allocated, :gpus_allocated, :jobs_running, :node_id);`\n\n// TODO: Add real Monitoring Health State\n\n// UpdateNodeState is called from the Node REST API to add a row in the node state table\nfunc (r *NodeRepository) UpdateNodeState(hostname string, cluster string, nodeState *schema.NodeStateDB) error {\n\tvar id int64\n\n\tif err := sq.Select(\"id\").From(\"node\").\n\t\tWhere(\"node.hostname = ?\", hostname).Where(\"node.cluster = ?\", cluster).RunWith(r.DB).\n\t\tQueryRow().Scan(&id); err != nil {\n\t\tif err == sql.ErrNoRows {\n\t\t\tsubcluster, err := archive.GetSubClusterByNode(cluster, hostname)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error while getting subcluster for node '%s' in cluster '%s': %v\", hostname, cluster, err)\n\t\t\t\treturn err\n\t\t\t}\n\t\t\tnode := schema.NodeDB{\n\t\t\t\tHostname: hostname, Cluster: cluster, SubCluster: subcluster,\n\t\t\t}\n\t\t\tid, err = r.AddNode(&node)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error while adding node '%s' to database: %v\", hostname, err)\n\t\t\t\treturn err\n\t\t\t}\n\n\t\t\tcclog.Debugf(\"Added node '%s' to database\", hostname)\n\t\t} else {\n\t\t\tcclog.Warnf(\"Error while querying node '%v' from database\", id)\n\t\t\treturn err\n\t\t}\n\t}\n\n\tnodeState.NodeID = id\n\n\t_, err := r.DB.NamedExec(NamedNodeStateInsert, nodeState)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while adding node state for '%v' to database\", hostname)\n\t\treturn err\n\t}\n\tcclog.Debugf(\"Updated node state for '%s' in database\", hostname)\n\treturn nil\n}\n\n// func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {\n// \tif _, err := sq.Update(\"node\").Set(\"health_state\", healthState).Where(\"node.id = ?\", id).RunWith(r.DB).Exec(); err != nil {\n// \t\tcclog.Errorf(\"error while updating node '%d'\", id)\n// \t\treturn err\n// \t}\n//\n// \treturn nil\n// }\n\n// NodeStateWithNode combines a node state row with denormalized node info.\ntype NodeStateWithNode struct {\n\tID int64 `db:\"id\"`\n\tTimeStamp int64 `db:\"time_stamp\"`\n\tNodeState string `db:\"node_state\"`\n\tHealthState string `db:\"health_state\"`\n\tHealthMetrics string `db:\"health_metrics\"`\n\tCpusAllocated int `db:\"cpus_allocated\"`\n\tMemoryAllocated int64 `db:\"memory_allocated\"`\n\tGpusAllocated int `db:\"gpus_allocated\"`\n\tJobsRunning int `db:\"jobs_running\"`\n\tHostname string `db:\"hostname\"`\n\tCluster string `db:\"cluster\"`\n\tSubCluster string `db:\"subcluster\"`\n}\n\n// FindNodeStatesBefore returns all node_state rows with time_stamp < cutoff,\n// joined with node info for denormalized archiving.\nfunc (r *NodeRepository) FindNodeStatesBefore(cutoff int64) ([]NodeStateWithNode, error) {\n\trows, err := sq.Select(\n\t\t\"node_state.id\", \"node_state.time_stamp\", \"node_state.node_state\",\n\t\t\"node_state.health_state\", \"node_state.health_metrics\",\n\t\t\"node_state.cpus_allocated\", \"node_state.memory_allocated\",\n\t\t\"node_state.gpus_allocated\", \"node_state.jobs_running\",\n\t\t\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t).\n\t\tFrom(\"node_state\").\n\t\tJoin(\"node ON node_state.node_id = node.id\").\n\t\tWhere(sq.Lt{\"node_state.time_stamp\": cutoff}).\n\t\tWhere(\"node_state.id NOT IN (SELECT ns2.id FROM node_state ns2 WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id))\").\n\t\tOrderBy(\"node.cluster ASC\", \"node.subcluster ASC\", \"node.hostname ASC\", \"node_state.time_stamp ASC\").\n\t\tRunWith(r.DB).Query()\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tvar result []NodeStateWithNode\n\tfor rows.Next() {\n\t\tvar ns NodeStateWithNode\n\t\tvar healthMetrics sql.NullString\n\t\tif err := rows.Scan(&ns.ID, &ns.TimeStamp, &ns.NodeState,\n\t\t\t&ns.HealthState, &healthMetrics,\n\t\t\t&ns.CpusAllocated, &ns.MemoryAllocated,\n\t\t\t&ns.GpusAllocated, &ns.JobsRunning,\n\t\t\t&ns.Hostname, &ns.Cluster, &ns.SubCluster); err != nil {\n\t\t\treturn nil, err\n\t\t}\n\t\tns.HealthMetrics = healthMetrics.String\n\t\tresult = append(result, ns)\n\t}\n\treturn result, nil\n}\n\n// DeleteNodeStatesBefore removes node_state rows with time_stamp < cutoff,\n// but always preserves the row with the latest timestamp per node_id.\nfunc (r *NodeRepository) DeleteNodeStatesBefore(cutoff int64) (int64, error) {\n\tres, err := r.DB.Exec(\n\t\t`DELETE FROM node_state WHERE time_stamp < ?\n\t\t AND id NOT IN (\n\t\t SELECT id FROM node_state ns2\n\t\t WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id)\n\t\t )`,\n\t\tcutoff,\n\t)\n\tif err != nil {\n\t\treturn 0, err\n\t}\n\treturn res.RowsAffected()\n}\n\nfunc (r *NodeRepository) DeleteNode(id int64) error {\n\t_, err := r.DB.Exec(`DELETE FROM node WHERE node.id = ?`, id)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while deleting node '%d' from DB\", id)\n\t\treturn err\n\t}\n\tcclog.Infof(\"deleted node '%d' from DB\", id)\n\treturn nil\n}\n\n// QueryNodes returns a list of nodes based on a node filter. It always operates\n// on the last state (largest timestamp).\nfunc (r *NodeRepository) QueryNodes(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n\tpage *model.PageRequest,\n\torder *model.OrderByInput, // Currently unused!\n) ([]*schema.Node, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\tquery = query.OrderBy(\"node.hostname ASC\")\n\n\tif page != nil && page.ItemsPerPage != -1 {\n\t\tlimit := uint64(page.ItemsPerPage)\n\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n\t}\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*schema.Node, 0)\n\tfor rows.Next() {\n\t\tnode := schema.Node{}\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n\t\t\t&node.NodeState, &node.HealthState); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\t\tnodes = append(nodes, &node)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\n// QueryNodesWithMeta returns a list of nodes based on a node filter. It always operates\n// on the last state (largest timestamp). It includes both (!) optional JSON column data\nfunc (r *NodeRepository) QueryNodesWithMeta(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n\tpage *model.PageRequest,\n\torder *model.OrderByInput, // Currently unused!\n) ([]*schema.Node, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\t\"node_state.node_state\", \"node_state.health_state\",\n\t\t\t\"node.meta_data\", \"node_state.health_metrics\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\tquery = query.OrderBy(\"node.hostname ASC\")\n\n\tif page != nil && page.ItemsPerPage != -1 {\n\t\tlimit := uint64(page.ItemsPerPage)\n\t\tquery = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)\n\t}\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*schema.Node, 0)\n\tfor rows.Next() {\n\t\tnode := schema.Node{}\n\t\tRawMetaData := make([]byte, 0)\n\t\tRawMetricHealth := make([]byte, 0)\n\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster, &node.SubCluster,\n\t\t\t&node.NodeState, &node.HealthState, &RawMetaData, &RawMetricHealth); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (QueryNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif len(RawMetaData) == 0 {\n\t\t\tnode.MetaData = nil\n\t\t} else {\n\t\t\tmetaData := make(map[string]string)\n\t\t\tif err := json.Unmarshal(RawMetaData, &metaData); err != nil {\n\t\t\t\tcclog.Warn(\"Error while unmarshaling raw metadata json\")\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t\tnode.MetaData = metaData\n\t\t}\n\n\t\tif len(RawMetricHealth) == 0 {\n\t\t\tnode.HealthData = nil\n\t\t} else {\n\t\t\thealthData := make(map[string][]string)\n\t\t\tif err := json.Unmarshal(RawMetricHealth, &healthData); err != nil {\n\t\t\t\tcclog.Warn(\"Error while unmarshaling raw healthdata json\")\n\t\t\t\treturn nil, err\n\t\t\t}\n\t\t\tnode.HealthData = healthData\n\t\t}\n\n\t\tnodes = append(nodes, &node)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\n// CountNodes returns the total matched nodes based on a node filter. It always operates\n// on the last state (largest timestamp) per node.\nfunc (r *NodeRepository) CountNodes(\n\tctx context.Context,\n\tfilters []*model.NodeFilter,\n) (int, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(\"COUNT(*)\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()))\n\tif qerr != nil {\n\t\treturn 0, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\n\tvar count int\n\tif err := query.RunWith(r.stmtCache).QueryRow().Scan(&count); err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn 0, err\n\t}\n\n\treturn count, nil\n}\n\nfunc (r *NodeRepository) ListNodes(cluster string) ([]*schema.Node, error) {\n\tq := sq.Select(\"node.hostname\", \"node.cluster\", \"node.subcluster\",\n\t\t\"node_state.node_state\", \"node_state.health_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tOrderBy(\"node.hostname ASC\")\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying node list\")\n\t\treturn nil, err\n\t}\n\tnodeList := make([]*schema.Node, 0, 100)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\tnode := &schema.Node{}\n\t\tif err := rows.Scan(&node.Hostname, &node.Cluster,\n\t\t\t&node.SubCluster, &node.NodeState, &node.HealthState); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning node list (ListNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tnodeList = append(nodeList, node)\n\t}\n\n\treturn nodeList, nil\n}\n\nfunc (r *NodeRepository) MapNodes(cluster string) (map[string]string, error) {\n\tq := sq.Select(\"node.hostname\", \"node_state.node_state\").\n\t\tFrom(\"node\").\n\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\tWhere(latestStateCondition()).\n\t\tWhere(\"node.cluster = ?\", cluster).\n\t\tOrderBy(\"node.hostname ASC\")\n\n\trows, err := q.RunWith(r.DB).Query()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while querying node list\")\n\t\treturn nil, err\n\t}\n\n\tstateMap := make(map[string]string)\n\tdefer rows.Close()\n\tfor rows.Next() {\n\t\tvar hostname, nodestate string\n\t\tif err := rows.Scan(&hostname, &nodestate); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning node list (MapNodes)\")\n\t\t\treturn nil, err\n\t\t}\n\n\t\tstateMap[hostname] = nodestate\n\t}\n\n\treturn stateMap, nil\n}\n\nfunc (r *NodeRepository) CountStates(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStates, error) {\n\tquery, qerr := AccessCheck(ctx,\n\t\tsq.Select(column, \"COUNT(*) as count\").\n\t\t\tFrom(\"node\").\n\t\t\tJoin(\"node_state ON node_state.node_id = node.id\").\n\t\t\tWhere(latestStateCondition()).\n\t\t\tGroupBy(column))\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = applyNodeFilters(query, filters)\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tnodes := make([]*model.NodeStates, 0)\n\tfor rows.Next() {\n\t\tvar state string\n\t\tvar count int\n\t\tif err := rows.Scan(&state, &count); err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows (CountStates)\")\n\t\t\treturn nil, err\n\t\t}\n\t\tnodes = append(nodes, &model.NodeStates{State: state, Count: count})\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn nodes, nil\n}\n\nfunc (r *NodeRepository) CountStatesTimed(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStatesTimed, error) {\n\tquery, qerr := AccessCheck(ctx, sq.Select(column, \"time_stamp\", \"count(*) as count\").From(\"node\")) // \"cluster\"?\n\tif qerr != nil {\n\t\treturn nil, qerr\n\t}\n\n\tquery = query.Join(\"node_state ON node_state.node_id = node.id\")\n\n\tfor _, f := range filters {\n\t\t// Required\n\t\tif f.TimeStart != nil {\n\t\t\tquery = query.Where(\"time_stamp > ?\", f.TimeStart)\n\t\t}\n\t\t// Optional\n\t\tif f.Hostname != nil {\n\t\t\tquery = buildStringCondition(\"hostname\", f.Hostname, query)\n\t\t}\n\t\tif f.Cluster != nil {\n\t\t\tquery = buildStringCondition(\"cluster\", f.Cluster, query)\n\t\t}\n\t\tif f.SubCluster != nil {\n\t\t\tquery = buildStringCondition(\"subcluster\", f.SubCluster, query)\n\t\t}\n\t\tif f.SchedulerState != nil {\n\t\t\tquery = query.Where(\"node_state = ?\", f.SchedulerState)\n\t\t}\n\t\tif f.HealthState != nil {\n\t\t\tquery = query.Where(\"health_state = ?\", f.HealthState)\n\t\t}\n\t}\n\n\t// Add Group and Order\n\tquery = query.GroupBy(column + \", time_stamp\").OrderBy(\"time_stamp ASC\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tqueryString, queryVars, _ := query.ToSql()\n\t\tcclog.Errorf(\"Error while running query '%s' %v: %v\", queryString, queryVars, err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\trawData := make(map[string][][]int)\n\tfor rows.Next() {\n\t\tvar state string\n\t\tvar timestamp, count int\n\n\t\tif err := rows.Scan(&state, ×tamp, &count); err != nil {\n\t\t\tcclog.Warnf(\"Error while scanning rows (CountStatesTimed) at time '%d'\", timestamp)\n\t\t\treturn nil, err\n\t\t}\n\n\t\tif rawData[state] == nil {\n\t\t\trawData[state] = [][]int{make([]int, 0), make([]int, 0)}\n\t\t}\n\n\t\trawData[state][0] = append(rawData[state][0], timestamp)\n\t\trawData[state][1] = append(rawData[state][1], count)\n\t}\n\n\tif err := rows.Err(); err != nil {\n\t\treturn nil, err\n\t}\n\n\ttimedStates := make([]*model.NodeStatesTimed, 0)\n\tfor state, data := range rawData {\n\t\tentry := model.NodeStatesTimed{State: state, Times: data[0], Counts: data[1]}\n\t\ttimedStates = append(timedStates, &entry)\n\t}\n\n\treturn timedStates, nil\n}\n\nfunc (r *NodeRepository) GetNodesForList(\n\tctx context.Context,\n\tcluster string,\n\tsubCluster string,\n\tstateFilter string,\n\tnodeFilter string,\n\tpage *model.PageRequest,\n) ([]string, map[string]string, int, bool, error) {\n\t// Init Return Vars\n\tnodes := make([]string, 0)\n\tstateMap := make(map[string]string)\n\tcountNodes := 0\n\thasNextPage := false\n\n\t// Build Filters\n\tqueryFilters := make([]*model.NodeFilter, 0)\n\tif cluster != \"\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Cluster: &model.StringInput{Eq: &cluster}})\n\t}\n\tif subCluster != \"\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SubCluster: &model.StringInput{Eq: &subCluster}})\n\t}\n\tif nodeFilter != \"\" && stateFilter != \"notindb\" {\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{Hostname: &model.StringInput{Contains: &nodeFilter}})\n\t}\n\tif stateFilter != \"all\" && stateFilter != \"notindb\" {\n\t\tqueryState := schema.SchedulerState(stateFilter)\n\t\tqueryFilters = append(queryFilters, &model.NodeFilter{SchedulerState: &queryState})\n\t}\n\t// if healthFilter != \"all\" {\n\t// \tfilters = append(filters, &model.NodeFilter{HealthState: &healthFilter})\n\t// }\n\n\t// Special Case: Disable Paging for missing nodes filter, save IPP for later\n\tvar backupItems int\n\tif stateFilter == \"notindb\" {\n\t\tbackupItems = page.ItemsPerPage\n\t\tpage.ItemsPerPage = -1\n\t}\n\n\t// Query Nodes From DB\n\trawNodes, serr := r.QueryNodes(ctx, queryFilters, page, nil) // Order not Used\n\tif serr != nil {\n\t\tcclog.Warn(\"error while loading node database data (Resolver.NodeMetricsList)\")\n\t\treturn nil, nil, 0, false, serr\n\t}\n\n\t// Intermediate Node Result Info\n\tfor _, node := range rawNodes {\n\t\tif node == nil {\n\t\t\tcontinue\n\t\t}\n\t\tnodes = append(nodes, node.Hostname)\n\t\tstateMap[node.Hostname] = string(node.NodeState)\n\t}\n\n\t// Special Case: Find Nodes not in DB node table but in metricStore only\n\tif stateFilter == \"notindb\" {\n\t\t// Reapply Original Paging\n\t\tpage.ItemsPerPage = backupItems\n\t\t// Get Nodes From Topology\n\t\tvar topoNodes []string\n\t\tif subCluster != \"\" {\n\t\t\tscNodes := archive.NodeLists[cluster][subCluster]\n\t\t\ttopoNodes = scNodes.PrintList()\n\t\t} else {\n\t\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n\t\t\tfor _, nodeList := range subClusterNodeLists {\n\t\t\t\ttopoNodes = append(topoNodes, nodeList.PrintList()...)\n\t\t\t}\n\t\t}\n\t\t// Compare to all nodes from cluster/subcluster in DB\n\t\tvar missingNodes []string\n\t\tfor _, scanNode := range topoNodes {\n\t\t\tif !slices.Contains(nodes, scanNode) {\n\t\t\t\tmissingNodes = append(missingNodes, scanNode)\n\t\t\t}\n\t\t}\n\t\t// Filter nodes by name\n\t\tif nodeFilter != \"\" {\n\t\t\tfilteredNodesByName := []string{}\n\t\t\tfor _, missingNode := range missingNodes {\n\t\t\t\tif strings.Contains(missingNode, nodeFilter) {\n\t\t\t\t\tfilteredNodesByName = append(filteredNodesByName, missingNode)\n\t\t\t\t}\n\t\t\t}\n\t\t\tmissingNodes = filteredNodesByName\n\t\t}\n\t\t// Sort Missing Nodes Alphanumerically\n\t\tslices.Sort(missingNodes)\n\t\t// Total Missing\n\t\tcountNodes = len(missingNodes)\n\t\t// Apply paging\n\t\tif countNodes > page.ItemsPerPage {\n\t\t\tstart := (page.Page - 1) * page.ItemsPerPage\n\t\t\tend := start + page.ItemsPerPage\n\t\t\tif end > countNodes {\n\t\t\t\tend = countNodes\n\t\t\t\thasNextPage = false\n\t\t\t} else {\n\t\t\t\thasNextPage = true\n\t\t\t}\n\t\t\tnodes = missingNodes[start:end]\n\t\t} else {\n\t\t\tnodes = missingNodes\n\t\t}\n\n\t} else {\n\t\t// DB Nodes: Count and derive hasNextPage from count\n\t\tvar cerr error\n\t\tcountNodes, cerr = r.CountNodes(ctx, queryFilters)\n\t\tif cerr != nil {\n\t\t\tcclog.Warn(\"error while counting node database data (Resolver.NodeMetricsList)\")\n\t\t\treturn nil, nil, 0, false, cerr\n\t\t}\n\t\thasNextPage = page.Page*page.ItemsPerPage < countNodes\n\t}\n\n\t// Fallback for non-init'd node table in DB; Ignores stateFilter\n\tif stateFilter == \"all\" && countNodes == 0 {\n\t\tnodes, countNodes, hasNextPage = getNodesFromTopol(cluster, subCluster, nodeFilter, page)\n\t}\n\n\treturn nodes, stateMap, countNodes, hasNextPage, nil\n}\n\nfunc AccessCheck(ctx context.Context, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n\tuser := GetUserFromContext(ctx)\n\treturn AccessCheckWithUser(user, query)\n}\n\nfunc AccessCheckWithUser(user *schema.User, query sq.SelectBuilder) (sq.SelectBuilder, error) {\n\tif user == nil {\n\t\tvar qnil sq.SelectBuilder\n\t\treturn qnil, fmt.Errorf(\"user context is nil\")\n\t}\n\n\tswitch {\n\t// case len(user.Roles) == 1 && user.HasRole(schema.RoleApi): // API-User : Access NodeInfos\n\t// \treturn query, nil\n\tcase user.HasAnyRole([]schema.Role{schema.RoleAdmin, schema.RoleSupport}): // Admin & Support : Access NodeInfos\n\t\treturn query, nil\n\tdefault: // No known Role: No Access, return error\n\t\tvar qnil sq.SelectBuilder\n\t\treturn qnil, fmt.Errorf(\"user has no or unknown roles\")\n\t}\n}\n\nfunc getNodesFromTopol(cluster string, subCluster string, nodeFilter string, page *model.PageRequest) ([]string, int, bool) {\n\t// 0) Init additional vars\n\thasNextPage := false\n\ttotalNodes := 0\n\n\t// 1) Get list of all nodes\n\tvar topolNodes []string\n\tif subCluster != \"\" {\n\t\tscNodes := archive.NodeLists[cluster][subCluster]\n\t\ttopolNodes = scNodes.PrintList()\n\t} else {\n\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n\t\tfor _, nodeList := range subClusterNodeLists {\n\t\t\ttopolNodes = append(topolNodes, nodeList.PrintList()...)\n\t\t}\n\t}\n\n\t// 2) Filter nodes\n\tif nodeFilter != \"\" {\n\t\tfilteredNodes := []string{}\n\t\tfor _, node := range topolNodes {\n\t\t\tif strings.Contains(node, nodeFilter) {\n\t\t\t\tfilteredNodes = append(filteredNodes, node)\n\t\t\t}\n\t\t}\n\t\ttopolNodes = filteredNodes\n\t}\n\n\t// 2.1) Count total nodes && Sort nodes -> Sorting invalidated after ccms return ...\n\ttotalNodes = len(topolNodes)\n\tsort.Strings(topolNodes)\n\n\t// 3) Apply paging\n\tif len(topolNodes) > page.ItemsPerPage {\n\t\tstart := (page.Page - 1) * page.ItemsPerPage\n\t\tend := start + page.ItemsPerPage\n\t\tif end >= len(topolNodes) {\n\t\t\tend = len(topolNodes)\n\t\t\thasNextPage = false\n\t\t} else {\n\t\t\thasNextPage = true\n\t\t}\n\t\ttopolNodes = topolNodes[start:end]\n\t}\n\n\treturn topolNodes, totalNodes, hasNextPage\n}\n","structuredPatch":[{"oldStart":244,"oldLines":6,"newStart":244,"newLines":77,"lines":[" return nil"," }"," ","+// NodeStateUpdate holds the data needed to update one node's state in a batch operation.","+type NodeStateUpdate struct {","+ Hostname string","+ Cluster string","+ NodeState *schema.NodeStateDB","+}","+","+// BatchUpdateNodeStates inserts node state rows for multiple nodes in a single transaction.","+// For each node, it looks up (or creates) the node row, then inserts the state row.","+// This reduces lock acquisitions from 2*N to 1 for N nodes.","+func (r *NodeRepository) BatchUpdateNodeStates(updates []NodeStateUpdate) error {","+ tx, err := r.DB.Beginx()","+ if err != nil {","+ return fmt.Errorf(\"BatchUpdateNodeStates: begin transaction: %w\", err)","+ }","+ defer tx.Rollback()","+","+ stmtLookup, err := tx.Preparex(\"SELECT id FROM node WHERE hostname = ? AND cluster = ?\")","+ if err != nil {","+ return fmt.Errorf(\"BatchUpdateNodeStates: prepare lookup: %w\", err)","+ }","+ defer stmtLookup.Close()","+","+ stmtInsertNode, err := tx.PrepareNamed(NamedNodeInsert)","+ if err != nil {","+ return fmt.Errorf(\"BatchUpdateNodeStates: prepare node insert: %w\", err)","+ }","+ defer stmtInsertNode.Close()","+","+ stmtInsertState, err := tx.PrepareNamed(NamedNodeStateInsert)","+ if err != nil {","+ return fmt.Errorf(\"BatchUpdateNodeStates: prepare state insert: %w\", err)","+ }","+ defer stmtInsertState.Close()","+","+ for _, u := range updates {","+ var id int64","+ if err := stmtLookup.QueryRow(u.Hostname, u.Cluster).Scan(&id); err != nil {","+ if err == sql.ErrNoRows {","+ subcluster, scErr := archive.GetSubClusterByNode(u.Cluster, u.Hostname)","+ if scErr != nil {","+ cclog.Errorf(\"BatchUpdateNodeStates: subcluster lookup for '%s' in '%s': %v\", u.Hostname, u.Cluster, scErr)","+ continue","+ }","+ node := schema.NodeDB{","+ Hostname: u.Hostname, Cluster: u.Cluster, SubCluster: subcluster,","+ }","+ res, insertErr := stmtInsertNode.Exec(&node)","+ if insertErr != nil {","+ cclog.Errorf(\"BatchUpdateNodeStates: insert node '%s': %v\", u.Hostname, insertErr)","+ continue","+ }","+ id, _ = res.LastInsertId()","+ } else {","+ cclog.Errorf(\"BatchUpdateNodeStates: lookup node '%s': %v\", u.Hostname, err)","+ continue","+ }","+ }","+","+ u.NodeState.NodeID = id","+ if _, err := stmtInsertState.Exec(u.NodeState); err != nil {","+ cclog.Errorf(\"BatchUpdateNodeStates: insert state for '%s': %v\", u.Hostname, err)","+ }","+ }","+","+ if err := tx.Commit(); err != nil {","+ return fmt.Errorf(\"BatchUpdateNodeStates: commit: %w\", err)","+ }","+ return nil","+}","+"," // func (r *NodeRepository) UpdateHealthState(hostname string, healthState *schema.MonitoringState) error {"," // \tif _, err := sq.Update(\"node\").Set(\"health_state\", healthState).Where(\"node.id = ?\", id).RunWith(r.DB).Exec(); err != nil {"," // \t\tcclog.Errorf(\"error while updating node '%d'\", id)"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"7956bad8-245f-4be0-b117-98737a7e1662","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d4a250d3-63e4-4469-a128-5090819378e7","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01BkQ2XeaVvTjx68JdU6xcc6","type":"tool_result","content":"20:\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n215:\t\t\tsubcluster, err := archive.GetSubClusterByNode(cluster, hostname)\n286:\t\t\t\tsubcluster, scErr := archive.GetSubClusterByNode(u.Cluster, u.Hostname)\n800:\t\t\tscNodes := archive.NodeLists[cluster][subCluster]\n803:\t\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n893:\t\tscNodes := archive.NodeLists[cluster][subCluster]\n896:\t\tsubClusterNodeLists := archive.NodeLists[cluster]"}]},"uuid":"000d7d6d-3f28-4a1b-ae81-513cec9b01a1","timestamp":"2026-03-16T10:13:31.391Z","toolUseResult":{"mode":"content","numFiles":0,"filenames":[],"content":"20:\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n215:\t\t\tsubcluster, err := archive.GetSubClusterByNode(cluster, hostname)\n286:\t\t\t\tsubcluster, scErr := archive.GetSubClusterByNode(u.Cluster, u.Hostname)\n800:\t\t\tscNodes := archive.NodeLists[cluster][subCluster]\n803:\t\t\tsubClusterNodeLists := archive.NodeLists[cluster]\n893:\t\tscNodes := archive.NodeLists[cluster][subCluster]\n896:\t\tsubClusterNodeLists := archive.NodeLists[cluster]","numLines":7},"sourceToolAssistantUUID":"d4a250d3-63e4-4469-a128-5090819378e7","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"000d7d6d-3f28-4a1b-ae81-513cec9b01a1","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Pp2PBfaTQuWSZxzaiMn4KG","type":"message","role":"assistant","content":[{"type":"text","text":"Good, `archive` is already imported. Now update the NATS handler to use batch:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":294,"cache_read_input_tokens":70165,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":294},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6ahSdt6beXEHrG34Lx4","type":"assistant","uuid":"c0fb6b0f-c717-4515-a759-46325a1832f9","timestamp":"2026-03-16T10:13:34.994Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"c0fb6b0f-c717-4515-a759-46325a1832f9","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01Pp2PBfaTQuWSZxzaiMn4KG","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01SfYezs5gWfSaJwFBvZwTQm","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)","new_string":"\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":294,"cache_read_input_tokens":70165,"output_tokens":763,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":294,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6ahSdt6beXEHrG34Lx4","type":"assistant","uuid":"9006a851-8e89-47d0-8cc0-6a71f7579d4c","timestamp":"2026-03-16T10:13:42.811Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"9006a851-8e89-47d0-8cc0-6a71f7579d4c","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"},"internal/repository/user.go":{"backupFileName":"0ad3b819db3027b0@v1","version":1,"backupTime":"2026-03-16T10:13:08.823Z"},"internal/auth/ldap.go":{"backupFileName":"eb6b6551a5c72cf4@v1","version":1,"backupTime":"2026-03-16T10:13:11.918Z"},"internal/repository/node.go":{"backupFileName":"01489fcb081061c5@v1","version":1,"backupTime":"2026-03-16T10:13:26.415Z"},"internal/api/nats.go":{"backupFileName":"55edb81630b87b05@v1","version":1,"backupTime":"2026-03-16T10:13:42.818Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"9006a851-8e89-47d0-8cc0-6a71f7579d4c","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01SfYezs5gWfSaJwFBvZwTQm","toolUseID":"toolu_01SfYezs5gWfSaJwFBvZwTQm","timestamp":"2026-03-16T10:13:42.820Z","uuid":"d043d5e5-f6eb-4cc5-84f1-7accd873b53d","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"9006a851-8e89-47d0-8cc0-6a71f7579d4c","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01SfYezs5gWfSaJwFBvZwTQm","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"d3f9fff6-c5c7-4b6a-9ccf-be1ce553c3d1","timestamp":"2026-03-16T10:13:42.820Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)","newString":"\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n// It mirrors the functionality of the REST API but uses NATS messaging with\n// InfluxDB line protocol as the message format.\n//\n// # Message Format\n//\n// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n// with the following structure:\n//\n//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n//\n// # Job Events\n//\n// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n//\n//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n//\n// Example job start message:\n//\n//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n//\n// # Node State Events\n//\n// Node state updates use the \"nodestate\" measurement with cluster information:\n//\n//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload follows the UpdateNodeStatesRequest structure.\n//\n// Example node state message:\n//\n//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\ntype NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t}\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Returns an error if the NATS client is not available or subscription fails.\nfunc (api *NatsAPI) StartSubscriptions() error {\n\tclient := nats.GetClient()\n\tif client == nil {\n\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n\t\treturn nil\n\t}\n\n\tif config.Keys.APISubjects != nil {\n\n\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}\n\treturn nil\n}\n\n// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n// Validates that required tags and fields are present before processing.\nfunc (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n\tfunction, ok := msg.GetTag(\"function\")\n\tif !ok {\n\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n\t\treturn\n\t}\n\n\tswitch function {\n\tcase \"start_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStartJob(v)\n\n\tcase \"stop_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStopJob(v)\n\n\tdefault:\n\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n\t}\n}\n\n// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"job\" and include:\n// - tag \"function\" with value \"start_job\" or \"stop_job\"\n// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n//\n// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\nfunc (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"job\" {\n\t\t\tapi.processJobEvent(m)\n\t\t} else {\n\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n\t\t}\n\t}\n}\n\n// handleStartJob processes job start messages received via NATS.\n// The payload parameter contains JSON following the schema.Job structure.\n// Jobs are validated, checked for duplicates, and inserted into the database.\nfunc (api *NatsAPI) handleStartJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS start job: payload is empty\")\n\t\treturn\n\t}\n\treq := schema.Job{\n\t\tShared: \"none\",\n\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n\t}\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n\treq.State = schema.JobStateRunning\n\n\tif err := importer.SanityChecks(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n\t\treturn\n\t}\n\n\tvar unlockOnce sync.Once\n\tapi.RepositoryMutex.Lock()\n\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n\t\treturn\n\t}\n\tif err == nil {\n\t\tfor _, job := range jobs {\n\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\t}\n\n\t// When tags are present, insert directly into the job table so that the\n\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n\tvar id int64\n\tif len(req.Tags) > 0 {\n\t\tid, err = api.JobRepository.StartDirect(&req)\n\t} else {\n\t\tid, err = api.JobRepository.Start(&req)\n\t}\n\tif err != nil {\n\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n\t\treturn\n\t}\n\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tfor _, tag := range req.Tags {\n\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n\t\t\treturn\n\t\t}\n\t}\n\n\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n}\n\n// handleStopJob processes job stop messages received via NATS.\n// The payload parameter contains JSON following the StopJobAPIRequest structure.\n// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\nfunc (api *NatsAPI) handleStopJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS stop job: payload is empty\")\n\t\treturn\n\t}\n\tvar req StopJobAPIRequest\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tif req.JobID == nil {\n\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n\t\treturn\n\t}\n\n\tisCached := false\n\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n\tif err != nil {\n\t\t// Not in cache, try main job table\n\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n\t\t\treturn\n\t\t}\n\t} else {\n\t\tisCached = true\n\t}\n\n\tif job.State != schema.JobStateRunning {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n\t\treturn\n\t}\n\n\tif job.StartTime > req.StopTime {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n\t\treturn\n\t}\n\n\tif req.State != \"\" && !req.State.Valid() {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n\t\treturn\n\t} else if req.State == \"\" {\n\t\treq.State = schema.JobStateCompleted\n\t}\n\n\tjob.Duration = int32(req.StopTime - job.StartTime)\n\tjob.State = req.State\n\tapi.JobRepository.Mutex.Lock()\n\tdefer api.JobRepository.Mutex.Unlock()\n\n\t// If the job is still in job_cache, transfer it to the job table first\n\tif isCached {\n\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n\t\t\treturn\n\t\t}\n\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n\t\tjob.ID = &newID\n\t}\n\n\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n\n\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n\t\treturn\n\t}\n\n\tarchiver.TriggerArchiving(job)\n}\n\n// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n// Updates node states in the repository for all nodes in the payload.\nfunc (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n\tv, ok := msg.GetEventValue()\n\tif !ok {\n\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n\t\treturn\n\t}\n\n\tvar req UpdateNodeStatesRequest\n\n\tdec := json.NewDecoder(strings.NewReader(v))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n}\n\n// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"nodestate\" and include:\n// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n//\n// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\nfunc (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"nodestate\" {\n\t\t\tapi.processNodestateEvent(m)\n\t\t} else {\n\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n\t\t}\n\t}\n}\n","structuredPatch":[{"oldStart":345,"oldLines":6,"newStart":345,"newLines":7,"lines":[" repo := repository.GetNodeRepository()"," requestReceived := time.Now().Unix()"," ","+ updates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))"," for _, node := range req.Nodes {"," state := determineState(node.States)"," nodeState := schema.NodeStateDB{"]},{"oldStart":356,"oldLines":11,"newStart":357,"newLines":15,"lines":[" HealthState: schema.MonitoringStateFull,"," JobsRunning: node.JobsRunning,"," }","+ updates = append(updates, repository.NodeStateUpdate{","+ Hostname: node.Hostname,","+ Cluster: req.Cluster,","+ NodeState: &nodeState,","+ })","+ }"," ","- if err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {","- cclog.Errorf(\"NATS nodestate: updating node state for %s on %s failed: %v\",","- node.Hostname, req.Cluster, err)","- }","+ if err := repo.BatchUpdateNodeStates(updates); err != nil {","+ cclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)"," }"," "," cclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"9006a851-8e89-47d0-8cc0-6a71f7579d4c","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"4a840c99-f10e-4a2a-88a9-26722953097a","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01XW1TDmuGSvp8mtAm3TgEbp","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01KWgT3DMBg4wm69ijcQDpSf","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/node.go","old_string":"\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))","new_string":"\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"updateNodeStates: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":807,"cache_read_input_tokens":70459,"output_tokens":912,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":807,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6aiHcgkCnEMhSsh7iXd","type":"assistant","uuid":"a9780779-40bc-4130-84ef-769ec8d703e9","timestamp":"2026-03-16T10:13:53.745Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"a9780779-40bc-4130-84ef-769ec8d703e9","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"},"internal/repository/user.go":{"backupFileName":"0ad3b819db3027b0@v1","version":1,"backupTime":"2026-03-16T10:13:08.823Z"},"internal/auth/ldap.go":{"backupFileName":"eb6b6551a5c72cf4@v1","version":1,"backupTime":"2026-03-16T10:13:11.918Z"},"internal/repository/node.go":{"backupFileName":"01489fcb081061c5@v1","version":1,"backupTime":"2026-03-16T10:13:26.415Z"},"internal/api/nats.go":{"backupFileName":"55edb81630b87b05@v1","version":1,"backupTime":"2026-03-16T10:13:42.818Z"},"internal/api/node.go":{"backupFileName":"b975dfea9894c28c@v1","version":1,"backupTime":"2026-03-16T10:13:53.754Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"a9780779-40bc-4130-84ef-769ec8d703e9","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01KWgT3DMBg4wm69ijcQDpSf","toolUseID":"toolu_01KWgT3DMBg4wm69ijcQDpSf","timestamp":"2026-03-16T10:13:53.756Z","uuid":"d8dc490d-e4b4-4c04-b626-3679ed6bd652","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"a9780779-40bc-4130-84ef-769ec8d703e9","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01KWgT3DMBg4wm69ijcQDpSf","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/node.go has been updated successfully."}]},"uuid":"a87c3df8-d8de-4a6f-b720-6991ede41740","timestamp":"2026-03-16T10:13:53.756Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/node.go","oldString":"\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))","newString":"\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"updateNodeStates: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"fmt\"\n\t\"maps\"\n\t\"net/http\"\n\t\"strings\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/metricdispatch\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n)\n\ntype UpdateNodeStatesRequest struct {\n\tNodes []schema.NodePayload `json:\"nodes\"`\n\tCluster string `json:\"cluster\" example:\"fritz\"`\n}\n\n// metricListToNames converts a map of metric configurations to a list of metric names\nfunc metricListToNames(metricList map[string]*schema.Metric) []string {\n\tnames := make([]string, 0, len(metricList))\n\tfor name := range metricList {\n\t\tnames = append(names, name)\n\t}\n\treturn names\n}\n\n// this routine assumes that only one of them exists per node\nfunc determineState(states []string) schema.SchedulerState {\n\tfor _, state := range states {\n\t\tswitch strings.ToLower(state) {\n\t\tcase \"allocated\":\n\t\t\treturn schema.NodeStateAllocated\n\t\tcase \"reserved\":\n\t\t\treturn schema.NodeStateReserved\n\t\tcase \"idle\":\n\t\t\treturn schema.NodeStateIdle\n\t\tcase \"down\":\n\t\t\treturn schema.NodeStateDown\n\t\tcase \"mixed\":\n\t\t\treturn schema.NodeStateMixed\n\t\t}\n\t}\n\n\treturn schema.NodeStateUnknown\n}\n\n// updateNodeStates godoc\n// @summary Deliver updated Slurm node states\n// @tags Nodestates\n// @description Returns a JSON-encoded list of users.\n// @description Required query-parameter defines if all users or only users with additional special roles are returned.\n// @produce json\n// @param request body UpdateNodeStatesRequest true \"Request body containing nodes and their states\"\n// @success 200 {object} api.DefaultAPIResponse \"Success message\"\n// @failure 400 {object} api.ErrorResponse \"Bad Request\"\n// @failure 401 {object} api.ErrorResponse \"Unauthorized\"\n// @failure 403 {object} api.ErrorResponse \"Forbidden\"\n// @failure 500 {object} api.ErrorResponse \"Internal Server Error\"\n// @security ApiKeyAuth\n// @router /api/nodestats/ [post]\nfunc (api *RestAPI) updateNodeStates(rw http.ResponseWriter, r *http.Request) {\n\t// Parse request body\n\treq := UpdateNodeStatesRequest{}\n\tif err := decode(r.Body, &req); err != nil {\n\t\thandleError(fmt.Errorf(\"parsing request body failed: %w\", err),\n\t\t\thttp.StatusBadRequest, rw)\n\t\treturn\n\t}\n\trequestReceived := time.Now().Unix()\n\trepo := repository.GetNodeRepository()\n\n\tm := make(map[string][]string)\n\tmetricNames := make(map[string][]string)\n\thealthResults := make(map[string]metricstore.HealthCheckResult)\n\n\tstartMs := time.Now()\n\n\t// Step 1: Build nodeList and metricList per subcluster\n\tfor _, node := range req.Nodes {\n\t\tif sc, err := archive.GetSubClusterByNode(req.Cluster, node.Hostname); err == nil {\n\t\t\tm[sc] = append(m[sc], node.Hostname)\n\t\t}\n\t}\n\n\tfor sc := range m {\n\t\tif sc != \"\" {\n\t\t\tmetricList := archive.GetMetricConfigSubCluster(req.Cluster, sc)\n\t\t\tmetricNames[sc] = metricListToNames(metricList)\n\t\t}\n\t}\n\n\t// Step 2: Determine which metric store to query and perform health check\n\thealthRepo, err := metricdispatch.GetHealthCheckRepo(req.Cluster)\n\tif err != nil {\n\t\tcclog.Warnf(\"updateNodeStates: no metric store for cluster %s, skipping health check: %v\", req.Cluster, err)\n\t} else {\n\t\tfor sc, nl := range m {\n\t\t\tif sc != \"\" {\n\t\t\t\tif results, err := healthRepo.HealthCheck(req.Cluster, nl, metricNames[sc]); err == nil {\n\t\t\t\t\tmaps.Copy(healthResults, results)\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))\n\tstartDB := time.Now()\n\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\thealthState := schema.MonitoringStateFailed\n\t\tvar healthMetrics string\n\t\tif result, ok := healthResults[node.Hostname]; ok {\n\t\t\thealthState = result.State\n\t\t\thealthMetrics = result.HealthMetrics\n\t\t}\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: healthState,\n\t\t\tHealthMetrics: healthMetrics,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\n\t\tif err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {\n\t\t\tcclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",\n\t\t\t\tnode.Hostname, req.Cluster, err)\n\t\t}\n\t}\n\n\tcclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))\n}\n","structuredPatch":[{"oldStart":116,"oldLines":6,"newStart":116,"newLines":7,"lines":[" cclog.Debugf(\"Timer updateNodeStates, MemStore HealthCheck: %s\", time.Since(startMs))"," startDB := time.Now()"," ","+ updates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))"," for _, node := range req.Nodes {"," state := determineState(node.States)"," healthState := schema.MonitoringStateFailed"]},{"oldStart":134,"oldLines":11,"newStart":135,"newLines":15,"lines":[" HealthMetrics: healthMetrics,"," JobsRunning: node.JobsRunning,"," }","+ updates = append(updates, repository.NodeStateUpdate{","+ Hostname: node.Hostname,","+ Cluster: req.Cluster,","+ NodeState: &nodeState,","+ })","+ }"," ","- if err := repo.UpdateNodeState(node.Hostname, req.Cluster, &nodeState); err != nil {","- cclog.Errorf(\"updateNodeStates: updating node state for %s on %s failed: %v\",","- node.Hostname, req.Cluster, err)","- }","+ if err := repo.BatchUpdateNodeStates(updates); err != nil {","+ cclog.Errorf(\"updateNodeStates: batch update for cluster %s failed: %v\", req.Cluster, err)"," }"," "," cclog.Debugf(\"Timer updateNodeStates, SQLite Inserts: %s\", time.Since(startDB))"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"a9780779-40bc-4130-84ef-769ec8d703e9","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"b3eaea28-2260-4531-b255-b9a6e6914aa4","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01VMAwybstFLKHc4G31EF56S","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01Vxd4CHYztaZiWnUyHBZ8pZ","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/jobCreate.go","old_string":"func (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = r.DB.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}","new_string":"func (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Transfer cached jobs to main table and clear cache in a single transaction.\n\ttx, err := r.DB.Beginx()\n\tif err != nil {\n\t\tcclog.Errorf(\"SyncJobs: begin transaction: %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer tx.Rollback()\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = tx.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = tx.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SyncJobs: commit transaction: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":955,"cache_read_input_tokens":71266,"output_tokens":1692,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":955,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6aj64SNo9N1xgzrnbah","type":"assistant","uuid":"5d65a99e-fbc1-45d5-9fce-5aa84524dc4d","timestamp":"2026-03-16T10:14:16.085Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"type":"file-history-snapshot","messageId":"5d65a99e-fbc1-45d5-9fce-5aa84524dc4d","snapshot":{"messageId":"0cc8876b-10ce-4edf-943f-0617397039d7","trackedFileBackups":{"internal/repository/config.go":{"backupFileName":"a883c5818c81b4d1@v1","version":1,"backupTime":"2026-03-16T10:12:55.834Z"},"internal/repository/dbConnection.go":{"backupFileName":"db30f6c3edc8b3d3@v1","version":1,"backupTime":"2026-03-16T10:12:59.713Z"},"pkg/archive/sqliteBackend.go":{"backupFileName":"18689be31059caac@v1","version":1,"backupTime":"2026-03-16T10:13:00.518Z"},"internal/repository/user.go":{"backupFileName":"0ad3b819db3027b0@v1","version":1,"backupTime":"2026-03-16T10:13:08.823Z"},"internal/auth/ldap.go":{"backupFileName":"eb6b6551a5c72cf4@v1","version":1,"backupTime":"2026-03-16T10:13:11.918Z"},"internal/repository/node.go":{"backupFileName":"01489fcb081061c5@v1","version":1,"backupTime":"2026-03-16T10:13:26.415Z"},"internal/api/nats.go":{"backupFileName":"55edb81630b87b05@v1","version":1,"backupTime":"2026-03-16T10:13:42.818Z"},"internal/api/node.go":{"backupFileName":"b975dfea9894c28c@v1","version":1,"backupTime":"2026-03-16T10:13:53.754Z"},"internal/repository/jobCreate.go":{"backupFileName":"9595742f9f0c7f86@v1","version":1,"backupTime":"2026-03-16T10:14:16.090Z"}},"timestamp":"2026-03-16T10:12:35.009Z"},"isSnapshotUpdate":true}
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{"parentUuid":"5d65a99e-fbc1-45d5-9fce-5aa84524dc4d","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01Vxd4CHYztaZiWnUyHBZ8pZ","toolUseID":"toolu_01Vxd4CHYztaZiWnUyHBZ8pZ","timestamp":"2026-03-16T10:14:16.092Z","uuid":"a59aa60b-a756-4cc1-8688-cbb9448fb534","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"5d65a99e-fbc1-45d5-9fce-5aa84524dc4d","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Vxd4CHYztaZiWnUyHBZ8pZ","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/jobCreate.go has been updated successfully."}]},"uuid":"fcc6aa60-5d51-4569-96d6-98061822f963","timestamp":"2026-03-16T10:14:16.092Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/jobCreate.go","oldString":"func (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = r.DB.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}","newString":"func (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Transfer cached jobs to main table and clear cache in a single transaction.\n\ttx, err := r.DB.Beginx()\n\tif err != nil {\n\t\tcclog.Errorf(\"SyncJobs: begin transaction: %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer tx.Rollback()\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = tx.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = tx.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\tif err := tx.Commit(); err != nil {\n\t\tcclog.Errorf(\"SyncJobs: commit transaction: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"encoding/json\"\n\t\"fmt\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tsq \"github.com/Masterminds/squirrel\"\n)\n\nconst NamedJobCacheInsert string = `INSERT INTO job_cache (\n\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n) VALUES (\n\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n);`\n\nconst NamedJobInsert string = `INSERT INTO job (\n\tjob_id, hpc_user, project, cluster, subcluster, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc,\n\tshared, monitoring_status, smt, job_state, start_time, duration, walltime, footprint, energy, energy_footprint, resources, meta_data\n) VALUES (\n\t:job_id, :hpc_user, :project, :cluster, :subcluster, :cluster_partition, :array_job_id, :num_nodes, :num_hwthreads, :num_acc,\n :shared, :monitoring_status, :smt, :job_state, :start_time, :duration, :walltime, :footprint, :energy, :energy_footprint, :resources, :meta_data\n);`\n\n// InsertJobDirect inserts a job directly into the job table (not job_cache).\n// Use this when the returned ID will be used for operations on the job table\n// (e.g., adding tags), or for imported jobs that are already completed.\nfunc (r *JobRepository) InsertJobDirect(job *schema.Job) (int64, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tres, err := r.DB.NamedExec(NamedJobInsert, job)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while NamedJobInsert (direct)\")\n\t\treturn 0, err\n\t}\n\tid, err := res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting last insert ID (direct)\")\n\t\treturn 0, err\n\t}\n\n\treturn id, nil\n}\n\nfunc (r *JobRepository) InsertJob(job *schema.Job) (int64, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tres, err := r.DB.NamedExec(NamedJobCacheInsert, job)\n\tif err != nil {\n\t\tcclog.Warn(\"Error while NamedJobInsert\")\n\t\treturn 0, err\n\t}\n\tid, err := res.LastInsertId()\n\tif err != nil {\n\t\tcclog.Warn(\"Error while getting last insert ID\")\n\t\treturn 0, err\n\t}\n\n\treturn id, nil\n}\n\nfunc (r *JobRepository) SyncJobs() ([]*schema.Job, error) {\n\tr.Mutex.Lock()\n\tdefer r.Mutex.Unlock()\n\n\tquery := sq.Select(jobCacheColumns...).From(\"job_cache\")\n\n\trows, err := query.RunWith(r.stmtCache).Query()\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while running query %v\", err)\n\t\treturn nil, err\n\t}\n\tdefer rows.Close()\n\n\tjobs := make([]*schema.Job, 0, 50)\n\tfor rows.Next() {\n\t\tjob, err := scanJob(rows)\n\t\tif err != nil {\n\t\t\tcclog.Warn(\"Error while scanning rows\")\n\t\t\treturn nil, err\n\t\t}\n\t\tjobs = append(jobs, job)\n\t}\n\n\t// Use INSERT OR IGNORE to skip jobs already transferred by the stop path\n\t_, err = r.DB.Exec(\n\t\t\"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job sync: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache\")\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while Job cache clean: %v\", err)\n\t\treturn nil, err\n\t}\n\n\t// Resolve correct job.id from the job table. The IDs read from job_cache\n\t// are from a different auto-increment sequence and must not be used to\n\t// query the job table.\n\tfor _, job := range jobs {\n\t\tvar newID int64\n\t\tif err := sq.Select(\"job.id\").From(\"job\").\n\t\t\tWhere(\"job.job_id = ? AND job.cluster = ? AND job.start_time = ?\",\n\t\t\t\tjob.JobID, job.Cluster, job.StartTime).\n\t\t\tRunWith(r.stmtCache).QueryRow().Scan(&newID); err != nil {\n\t\t\tcclog.Warnf(\"SyncJobs: could not resolve job table id for job %d on %s: %v\",\n\t\t\t\tjob.JobID, job.Cluster, err)\n\t\t\tcontinue\n\t\t}\n\t\tjob.ID = &newID\n\t}\n\n\treturn jobs, nil\n}\n\n// TransferCachedJobToMain moves a job from job_cache to the job table.\n// Caller must hold r.Mutex. Returns the new job table ID.\nfunc (r *JobRepository) TransferCachedJobToMain(cacheID int64) (int64, error) {\n\tres, err := r.DB.Exec(\n\t\t\"INSERT INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache WHERE id = ?\",\n\t\tcacheID)\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"transferring cached job %d to main table failed: %w\", cacheID, err)\n\t}\n\n\tnewID, err := res.LastInsertId()\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"getting new job ID after transfer failed: %w\", err)\n\t}\n\n\t_, err = r.DB.Exec(\"DELETE FROM job_cache WHERE id = ?\", cacheID)\n\tif err != nil {\n\t\treturn 0, fmt.Errorf(\"deleting cached job %d after transfer failed: %w\", cacheID, err)\n\t}\n\n\treturn newID, nil\n}\n\n// Start inserts a new job in the table, returning the unique job ID.\n// Statistics are not transfered!\nfunc (r *JobRepository) Start(job *schema.Job) (id int64, err error) {\n\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n\t}\n\n\tjob.RawResources, err = json.Marshal(job.Resources)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n\t}\n\n\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n\t}\n\n\treturn r.InsertJob(job)\n}\n\n// StartDirect inserts a new job directly into the job table (not job_cache).\n// Use this when the returned ID will immediately be used for job table\n// operations such as adding tags.\nfunc (r *JobRepository) StartDirect(job *schema.Job) (id int64, err error) {\n\tjob.RawFootprint, err = json.Marshal(job.Footprint)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding footprint field failed: %w\", err)\n\t}\n\n\tjob.RawResources, err = json.Marshal(job.Resources)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding resources field failed: %w\", err)\n\t}\n\n\tjob.RawMetaData, err = json.Marshal(job.MetaData)\n\tif err != nil {\n\t\treturn -1, fmt.Errorf(\"REPOSITORY/JOB > encoding metaData field failed: %w\", err)\n\t}\n\n\treturn r.InsertJobDirect(job)\n}\n\n// Stop updates the job with the database id jobId using the provided arguments.\nfunc (r *JobRepository) Stop(\n\tjobID int64,\n\tduration int32,\n\tstate schema.JobState,\n\tmonitoringStatus int32,\n) (err error) {\n\t// Invalidate cache entries as job state is changing\n\tr.cache.Del(fmt.Sprintf(\"metadata:%d\", jobID))\n\tr.cache.Del(fmt.Sprintf(\"energyFootprint:%d\", jobID))\n\n\tstmt := sq.Update(\"job\").\n\t\tSet(\"job_state\", state).\n\t\tSet(\"duration\", duration).\n\t\tSet(\"monitoring_status\", monitoringStatus).\n\t\tWhere(\"job.id = ?\", jobID)\n\n\t_, err = stmt.RunWith(r.stmtCache).Exec()\n\treturn err\n}\n","structuredPatch":[{"oldStart":92,"oldLines":20,"newStart":92,"newLines":33,"lines":[" jobs = append(jobs, job)"," }"," ","+ // Transfer cached jobs to main table and clear cache in a single transaction.","+ tx, err := r.DB.Beginx()","+ if err != nil {","+ cclog.Errorf(\"SyncJobs: begin transaction: %v\", err)","+ return nil, err","+ }","+ defer tx.Rollback()","+"," // Use INSERT OR IGNORE to skip jobs already transferred by the stop path","- _, err = r.DB.Exec(","+ _, err = tx.Exec("," \"INSERT OR IGNORE INTO job (job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data) SELECT job_id, cluster, subcluster, start_time, hpc_user, project, cluster_partition, array_job_id, num_nodes, num_hwthreads, num_acc, shared, monitoring_status, smt, job_state, duration, walltime, footprint, energy, energy_footprint, resources, meta_data FROM job_cache\")"," if err != nil {"," cclog.Errorf(\"Error while Job sync: %v\", err)"," return nil, err"," }"," ","- _, err = r.DB.Exec(\"DELETE FROM job_cache\")","+ _, err = tx.Exec(\"DELETE FROM job_cache\")"," if err != nil {"," cclog.Errorf(\"Error while Job cache clean: %v\", err)"," return nil, err"," }"," ","+ if err := tx.Commit(); err != nil {","+ cclog.Errorf(\"SyncJobs: commit transaction: %v\", err)","+ return nil, err","+ }","+"," // Resolve correct job.id from the job table. The IDs read from job_cache"," // are from a different auto-increment sequence and must not be used to"," // query the job table."]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"5d65a99e-fbc1-45d5-9fce-5aa84524dc4d","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"fcc6aa60-5d51-4569-96d6-98061822f963","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01BewUjJvbd6HUzjE1jk3W19","type":"message","role":"assistant","content":[{"type":"text","text":"**Fix 4: NATS semaphores**"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1736,"cache_read_input_tokens":72221,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":1736},"output_tokens":4,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6akjfep1TWFw8enp3sh","type":"assistant","uuid":"c0ddf07e-5da4-46a9-82fd-cefe50d6859f","timestamp":"2026-03-16T10:14:19.842Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"c0ddf07e-5da4-46a9-82fd-cefe50d6859f","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01BewUjJvbd6HUzjE1jk3W19","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_014HMVkUZgUEv2F5FVEvG9yC","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"type NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t}\n}","new_string":"type NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n\t// jobSem limits concurrent NATS job event processing to prevent goroutine accumulation\n\t// when the database is under contention.\n\tjobSem chan struct{}\n\t// nodeSem limits concurrent NATS node state processing.\n\tnodeSem chan struct{}\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobSem: make(chan struct{}, 8),\n\t\tnodeSem: make(chan struct{}, 2),\n\t}\n}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1736,"cache_read_input_tokens":72221,"output_tokens":463,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1736,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6akjfep1TWFw8enp3sh","type":"assistant","uuid":"3775dc48-712d-4527-831d-4b8ba6f366d9","timestamp":"2026-03-16T10:14:25.639Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3775dc48-712d-4527-831d-4b8ba6f366d9","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_014HMVkUZgUEv2F5FVEvG9yC","toolUseID":"toolu_014HMVkUZgUEv2F5FVEvG9yC","timestamp":"2026-03-16T10:14:25.663Z","uuid":"62f8ee7a-51bc-4db5-a068-b7ad5d89796a","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3775dc48-712d-4527-831d-4b8ba6f366d9","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_014HMVkUZgUEv2F5FVEvG9yC","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"ee24031c-69cc-4429-8b76-a49bdc1e244e","timestamp":"2026-03-16T10:14:25.663Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"type NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t}\n}","newString":"type NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n\t// jobSem limits concurrent NATS job event processing to prevent goroutine accumulation\n\t// when the database is under contention.\n\tjobSem chan struct{}\n\t// nodeSem limits concurrent NATS node state processing.\n\tnodeSem chan struct{}\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobSem: make(chan struct{}, 8),\n\t\tnodeSem: make(chan struct{}, 2),\n\t}\n}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n// It mirrors the functionality of the REST API but uses NATS messaging with\n// InfluxDB line protocol as the message format.\n//\n// # Message Format\n//\n// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n// with the following structure:\n//\n//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n//\n// # Job Events\n//\n// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n//\n//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n//\n// Example job start message:\n//\n//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n//\n// # Node State Events\n//\n// Node state updates use the \"nodestate\" measurement with cluster information:\n//\n//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload follows the UpdateNodeStatesRequest structure.\n//\n// Example node state message:\n//\n//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\ntype NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t}\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Returns an error if the NATS client is not available or subscription fails.\nfunc (api *NatsAPI) StartSubscriptions() error {\n\tclient := nats.GetClient()\n\tif client == nil {\n\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n\t\treturn nil\n\t}\n\n\tif config.Keys.APISubjects != nil {\n\n\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}\n\treturn nil\n}\n\n// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n// Validates that required tags and fields are present before processing.\nfunc (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n\tfunction, ok := msg.GetTag(\"function\")\n\tif !ok {\n\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n\t\treturn\n\t}\n\n\tswitch function {\n\tcase \"start_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStartJob(v)\n\n\tcase \"stop_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStopJob(v)\n\n\tdefault:\n\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n\t}\n}\n\n// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"job\" and include:\n// - tag \"function\" with value \"start_job\" or \"stop_job\"\n// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n//\n// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\nfunc (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"job\" {\n\t\t\tapi.processJobEvent(m)\n\t\t} else {\n\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n\t\t}\n\t}\n}\n\n// handleStartJob processes job start messages received via NATS.\n// The payload parameter contains JSON following the schema.Job structure.\n// Jobs are validated, checked for duplicates, and inserted into the database.\nfunc (api *NatsAPI) handleStartJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS start job: payload is empty\")\n\t\treturn\n\t}\n\treq := schema.Job{\n\t\tShared: \"none\",\n\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n\t}\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n\treq.State = schema.JobStateRunning\n\n\tif err := importer.SanityChecks(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n\t\treturn\n\t}\n\n\tvar unlockOnce sync.Once\n\tapi.RepositoryMutex.Lock()\n\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n\t\treturn\n\t}\n\tif err == nil {\n\t\tfor _, job := range jobs {\n\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\t}\n\n\t// When tags are present, insert directly into the job table so that the\n\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n\tvar id int64\n\tif len(req.Tags) > 0 {\n\t\tid, err = api.JobRepository.StartDirect(&req)\n\t} else {\n\t\tid, err = api.JobRepository.Start(&req)\n\t}\n\tif err != nil {\n\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n\t\treturn\n\t}\n\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tfor _, tag := range req.Tags {\n\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n\t\t\treturn\n\t\t}\n\t}\n\n\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n}\n\n// handleStopJob processes job stop messages received via NATS.\n// The payload parameter contains JSON following the StopJobAPIRequest structure.\n// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\nfunc (api *NatsAPI) handleStopJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS stop job: payload is empty\")\n\t\treturn\n\t}\n\tvar req StopJobAPIRequest\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tif req.JobID == nil {\n\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n\t\treturn\n\t}\n\n\tisCached := false\n\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n\tif err != nil {\n\t\t// Not in cache, try main job table\n\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n\t\t\treturn\n\t\t}\n\t} else {\n\t\tisCached = true\n\t}\n\n\tif job.State != schema.JobStateRunning {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n\t\treturn\n\t}\n\n\tif job.StartTime > req.StopTime {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n\t\treturn\n\t}\n\n\tif req.State != \"\" && !req.State.Valid() {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n\t\treturn\n\t} else if req.State == \"\" {\n\t\treq.State = schema.JobStateCompleted\n\t}\n\n\tjob.Duration = int32(req.StopTime - job.StartTime)\n\tjob.State = req.State\n\tapi.JobRepository.Mutex.Lock()\n\tdefer api.JobRepository.Mutex.Unlock()\n\n\t// If the job is still in job_cache, transfer it to the job table first\n\tif isCached {\n\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n\t\t\treturn\n\t\t}\n\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n\t\tjob.ID = &newID\n\t}\n\n\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n\n\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n\t\treturn\n\t}\n\n\tarchiver.TriggerArchiving(job)\n}\n\n// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n// Updates node states in the repository for all nodes in the payload.\nfunc (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n\tv, ok := msg.GetEventValue()\n\tif !ok {\n\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n\t\treturn\n\t}\n\n\tvar req UpdateNodeStatesRequest\n\n\tdec := json.NewDecoder(strings.NewReader(v))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n}\n\n// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"nodestate\" and include:\n// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n//\n// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\nfunc (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"nodestate\" {\n\t\t\tapi.processNodestateEvent(m)\n\t\t} else {\n\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n\t\t}\n\t}\n}\n","structuredPatch":[{"oldStart":64,"oldLines":12,"newStart":64,"newLines":19,"lines":[" // RepositoryMutex protects job creation operations from race conditions"," // when checking for duplicate jobs during startJob calls."," RepositoryMutex sync.Mutex","+ // jobSem limits concurrent NATS job event processing to prevent goroutine accumulation","+ // when the database is under contention.","+ jobSem chan struct{}","+ // nodeSem limits concurrent NATS node state processing.","+ nodeSem chan struct{}"," }"," "," // NewNatsAPI creates a new NatsAPI instance with default dependencies."," func NewNatsAPI() *NatsAPI {"," return &NatsAPI{"," JobRepository: repository.GetJobRepository(),","+ jobSem: make(chan struct{}, 8),","+ nodeSem: make(chan struct{}, 2),"," }"," }"," "]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"3775dc48-712d-4527-831d-4b8ba6f366d9","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"ee24031c-69cc-4429-8b76-a49bdc1e244e","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01BAi9cdLpY9ze3kti1EgJd8","type":"message","role":"assistant","content":[{"type":"text","text":"Now add semaphore acquire/release to `handleJobEvent` and `handleNodeState`:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":618,"cache_read_input_tokens":73957,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":618},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6amSZHFncC3Jwm7TmpJ","type":"assistant","uuid":"493fc493-c27b-477d-a40e-229856dd3a25","timestamp":"2026-03-16T10:14:29.415Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"493fc493-c27b-477d-a40e-229856dd3a25","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01BAi9cdLpY9ze3kti1EgJd8","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01F343pD8uwJ3KXtR8moYRXc","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","new_string":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tapi.jobSem <- struct{}{}\n\tdefer func() { <-api.jobSem }()\n\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":618,"cache_read_input_tokens":73957,"output_tokens":330,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":618,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6amSZHFncC3Jwm7TmpJ","type":"assistant","uuid":"1ef8186a-a04a-482e-b9a5-3c346596f2fc","timestamp":"2026-03-16T10:14:31.960Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"1ef8186a-a04a-482e-b9a5-3c346596f2fc","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01F343pD8uwJ3KXtR8moYRXc","toolUseID":"toolu_01F343pD8uwJ3KXtR8moYRXc","timestamp":"2026-03-16T10:14:31.972Z","uuid":"0e01642d-c7a2-434b-86e8-aa9d2671dea5","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"1ef8186a-a04a-482e-b9a5-3c346596f2fc","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01F343pD8uwJ3KXtR8moYRXc","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"56d57da3-6e7b-40c4-8d7c-511fcb0411d5","timestamp":"2026-03-16T10:14:31.972Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","newString":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tapi.jobSem <- struct{}{}\n\tdefer func() { <-api.jobSem }()\n\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n// It mirrors the functionality of the REST API but uses NATS messaging with\n// InfluxDB line protocol as the message format.\n//\n// # Message Format\n//\n// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n// with the following structure:\n//\n//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n//\n// # Job Events\n//\n// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n//\n//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n//\n// Example job start message:\n//\n//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n//\n// # Node State Events\n//\n// Node state updates use the \"nodestate\" measurement with cluster information:\n//\n//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload follows the UpdateNodeStatesRequest structure.\n//\n// Example node state message:\n//\n//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\ntype NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n\t// jobSem limits concurrent NATS job event processing to prevent goroutine accumulation\n\t// when the database is under contention.\n\tjobSem chan struct{}\n\t// nodeSem limits concurrent NATS node state processing.\n\tnodeSem chan struct{}\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobSem: make(chan struct{}, 8),\n\t\tnodeSem: make(chan struct{}, 2),\n\t}\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Returns an error if the NATS client is not available or subscription fails.\nfunc (api *NatsAPI) StartSubscriptions() error {\n\tclient := nats.GetClient()\n\tif client == nil {\n\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n\t\treturn nil\n\t}\n\n\tif config.Keys.APISubjects != nil {\n\n\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}\n\treturn nil\n}\n\n// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n// Validates that required tags and fields are present before processing.\nfunc (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n\tfunction, ok := msg.GetTag(\"function\")\n\tif !ok {\n\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n\t\treturn\n\t}\n\n\tswitch function {\n\tcase \"start_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStartJob(v)\n\n\tcase \"stop_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStopJob(v)\n\n\tdefault:\n\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n\t}\n}\n\n// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"job\" and include:\n// - tag \"function\" with value \"start_job\" or \"stop_job\"\n// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n//\n// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\nfunc (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"job\" {\n\t\t\tapi.processJobEvent(m)\n\t\t} else {\n\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n\t\t}\n\t}\n}\n\n// handleStartJob processes job start messages received via NATS.\n// The payload parameter contains JSON following the schema.Job structure.\n// Jobs are validated, checked for duplicates, and inserted into the database.\nfunc (api *NatsAPI) handleStartJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS start job: payload is empty\")\n\t\treturn\n\t}\n\treq := schema.Job{\n\t\tShared: \"none\",\n\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n\t}\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n\treq.State = schema.JobStateRunning\n\n\tif err := importer.SanityChecks(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n\t\treturn\n\t}\n\n\tvar unlockOnce sync.Once\n\tapi.RepositoryMutex.Lock()\n\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n\t\treturn\n\t}\n\tif err == nil {\n\t\tfor _, job := range jobs {\n\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\t}\n\n\t// When tags are present, insert directly into the job table so that the\n\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n\tvar id int64\n\tif len(req.Tags) > 0 {\n\t\tid, err = api.JobRepository.StartDirect(&req)\n\t} else {\n\t\tid, err = api.JobRepository.Start(&req)\n\t}\n\tif err != nil {\n\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n\t\treturn\n\t}\n\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tfor _, tag := range req.Tags {\n\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n\t\t\treturn\n\t\t}\n\t}\n\n\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n}\n\n// handleStopJob processes job stop messages received via NATS.\n// The payload parameter contains JSON following the StopJobAPIRequest structure.\n// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\nfunc (api *NatsAPI) handleStopJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS stop job: payload is empty\")\n\t\treturn\n\t}\n\tvar req StopJobAPIRequest\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tif req.JobID == nil {\n\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n\t\treturn\n\t}\n\n\tisCached := false\n\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n\tif err != nil {\n\t\t// Not in cache, try main job table\n\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n\t\t\treturn\n\t\t}\n\t} else {\n\t\tisCached = true\n\t}\n\n\tif job.State != schema.JobStateRunning {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n\t\treturn\n\t}\n\n\tif job.StartTime > req.StopTime {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n\t\treturn\n\t}\n\n\tif req.State != \"\" && !req.State.Valid() {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n\t\treturn\n\t} else if req.State == \"\" {\n\t\treq.State = schema.JobStateCompleted\n\t}\n\n\tjob.Duration = int32(req.StopTime - job.StartTime)\n\tjob.State = req.State\n\tapi.JobRepository.Mutex.Lock()\n\tdefer api.JobRepository.Mutex.Unlock()\n\n\t// If the job is still in job_cache, transfer it to the job table first\n\tif isCached {\n\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n\t\t\treturn\n\t\t}\n\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n\t\tjob.ID = &newID\n\t}\n\n\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n\n\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n\t\treturn\n\t}\n\n\tarchiver.TriggerArchiving(job)\n}\n\n// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n// Updates node states in the repository for all nodes in the payload.\nfunc (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n\tv, ok := msg.GetEventValue()\n\tif !ok {\n\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n\t\treturn\n\t}\n\n\tvar req UpdateNodeStatesRequest\n\n\tdec := json.NewDecoder(strings.NewReader(v))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n}\n\n// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"nodestate\" and include:\n// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n//\n// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\nfunc (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"nodestate\" {\n\t\t\tapi.processNodestateEvent(m)\n\t\t} else {\n\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n\t\t}\n\t}\n}\n","structuredPatch":[{"oldStart":144,"oldLines":6,"newStart":144,"newLines":9,"lines":[" //"," // Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000"," func (api *NatsAPI) handleJobEvent(subject string, data []byte) {","+ api.jobSem <- struct{}{}","+ defer func() { <-api.jobSem }()","+"," if len(data) == 0 {"," cclog.Warnf(\"NATS %s: received empty message\", subject)"," return"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"1ef8186a-a04a-482e-b9a5-3c346596f2fc","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"56d57da3-6e7b-40c4-8d7c-511fcb0411d5","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_018GDq8pzsSNa7nJereCUUuJ","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_017JDESo1Lkjh5SWMU35gSHD","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","new_string":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tapi.nodeSem <- struct{}{}\n\tdefer func() { <-api.nodeSem }()\n\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":374,"cache_read_input_tokens":74575,"output_tokens":309,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":374,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6amuTHvcstiLQtphpTt","type":"assistant","uuid":"d7e94c87-1f2a-4e1b-9161-c8c4ea41292f","timestamp":"2026-03-16T10:14:36.687Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d7e94c87-1f2a-4e1b-9161-c8c4ea41292f","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_017JDESo1Lkjh5SWMU35gSHD","toolUseID":"toolu_017JDESo1Lkjh5SWMU35gSHD","timestamp":"2026-03-16T10:14:36.702Z","uuid":"f81a86b2-4d61-41bf-b4ea-3a85809dacee","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"d7e94c87-1f2a-4e1b-9161-c8c4ea41292f","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_017JDESo1Lkjh5SWMU35gSHD","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"a9a61ff3-ead3-48d1-807b-e2a14ab45568","timestamp":"2026-03-16T10:14:36.702Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","newString":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tapi.nodeSem <- struct{}{}\n\tdefer func() { <-api.nodeSem }()\n\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage api\n\nimport (\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"strings\"\n\t\"sync\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/importer\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/nats\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/receivers\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\tinflux \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\"\n)\n\n// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n// It mirrors the functionality of the REST API but uses NATS messaging with\n// InfluxDB line protocol as the message format.\n//\n// # Message Format\n//\n// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n// with the following structure:\n//\n//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n//\n// # Job Events\n//\n// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n//\n//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n//\n// Example job start message:\n//\n//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n//\n// # Node State Events\n//\n// Node state updates use the \"nodestate\" measurement with cluster information:\n//\n//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n//\n// The JSON payload follows the UpdateNodeStatesRequest structure.\n//\n// Example node state message:\n//\n//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\ntype NatsAPI struct {\n\tJobRepository *repository.JobRepository\n\t// RepositoryMutex protects job creation operations from race conditions\n\t// when checking for duplicate jobs during startJob calls.\n\tRepositoryMutex sync.Mutex\n\t// jobSem limits concurrent NATS job event processing to prevent goroutine accumulation\n\t// when the database is under contention.\n\tjobSem chan struct{}\n\t// nodeSem limits concurrent NATS node state processing.\n\tnodeSem chan struct{}\n}\n\n// NewNatsAPI creates a new NatsAPI instance with default dependencies.\nfunc NewNatsAPI() *NatsAPI {\n\treturn &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobSem: make(chan struct{}, 8),\n\t\tnodeSem: make(chan struct{}, 2),\n\t}\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Returns an error if the NATS client is not available or subscription fails.\nfunc (api *NatsAPI) StartSubscriptions() error {\n\tclient := nats.GetClient()\n\tif client == nil {\n\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n\t\treturn nil\n\t}\n\n\tif config.Keys.APISubjects != nil {\n\n\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}\n\treturn nil\n}\n\n// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n// Validates that required tags and fields are present before processing.\nfunc (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n\tfunction, ok := msg.GetTag(\"function\")\n\tif !ok {\n\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n\t\treturn\n\t}\n\n\tswitch function {\n\tcase \"start_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStartJob(v)\n\n\tcase \"stop_job\":\n\t\tv, ok := msg.GetEventValue()\n\t\tif !ok {\n\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n\t\t\treturn\n\t\t}\n\t\tapi.handleStopJob(v)\n\n\tdefault:\n\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n\t}\n}\n\n// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"job\" and include:\n// - tag \"function\" with value \"start_job\" or \"stop_job\"\n// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n//\n// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\nfunc (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tapi.jobSem <- struct{}{}\n\tdefer func() { <-api.jobSem }()\n\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"job\" {\n\t\t\tapi.processJobEvent(m)\n\t\t} else {\n\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n\t\t}\n\t}\n}\n\n// handleStartJob processes job start messages received via NATS.\n// The payload parameter contains JSON following the schema.Job structure.\n// Jobs are validated, checked for duplicates, and inserted into the database.\nfunc (api *NatsAPI) handleStartJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS start job: payload is empty\")\n\t\treturn\n\t}\n\treq := schema.Job{\n\t\tShared: \"none\",\n\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n\t}\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n\treq.State = schema.JobStateRunning\n\n\tif err := importer.SanityChecks(&req); err != nil {\n\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n\t\treturn\n\t}\n\n\tvar unlockOnce sync.Once\n\tapi.RepositoryMutex.Lock()\n\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n\t\treturn\n\t}\n\tif err == nil {\n\t\tfor _, job := range jobs {\n\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n\t\t\t\treturn\n\t\t\t}\n\t\t}\n\t}\n\n\t// When tags are present, insert directly into the job table so that the\n\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n\tvar id int64\n\tif len(req.Tags) > 0 {\n\t\tid, err = api.JobRepository.StartDirect(&req)\n\t} else {\n\t\tid, err = api.JobRepository.Start(&req)\n\t}\n\tif err != nil {\n\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n\t\treturn\n\t}\n\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n\n\tfor _, tag := range req.Tags {\n\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n\t\t\treturn\n\t\t}\n\t}\n\n\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n}\n\n// handleStopJob processes job stop messages received via NATS.\n// The payload parameter contains JSON following the StopJobAPIRequest structure.\n// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\nfunc (api *NatsAPI) handleStopJob(payload string) {\n\tif payload == \"\" {\n\t\tcclog.Error(\"NATS stop job: payload is empty\")\n\t\treturn\n\t}\n\tvar req StopJobAPIRequest\n\n\tdec := json.NewDecoder(strings.NewReader(payload))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\tif req.JobID == nil {\n\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n\t\treturn\n\t}\n\n\tisCached := false\n\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n\tif err != nil {\n\t\t// Not in cache, try main job table\n\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n\t\t\treturn\n\t\t}\n\t} else {\n\t\tisCached = true\n\t}\n\n\tif job.State != schema.JobStateRunning {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n\t\treturn\n\t}\n\n\tif job.StartTime > req.StopTime {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n\t\treturn\n\t}\n\n\tif req.State != \"\" && !req.State.Valid() {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n\t\treturn\n\t} else if req.State == \"\" {\n\t\treq.State = schema.JobStateCompleted\n\t}\n\n\tjob.Duration = int32(req.StopTime - job.StartTime)\n\tjob.State = req.State\n\tapi.JobRepository.Mutex.Lock()\n\tdefer api.JobRepository.Mutex.Unlock()\n\n\t// If the job is still in job_cache, transfer it to the job table first\n\tif isCached {\n\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n\t\t\treturn\n\t\t}\n\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n\t\tjob.ID = &newID\n\t}\n\n\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n\t\treturn\n\t}\n\n\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n\n\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n\t\treturn\n\t}\n\n\tarchiver.TriggerArchiving(job)\n}\n\n// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n// Updates node states in the repository for all nodes in the payload.\nfunc (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n\tv, ok := msg.GetEventValue()\n\tif !ok {\n\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n\t\treturn\n\t}\n\n\tvar req UpdateNodeStatesRequest\n\n\tdec := json.NewDecoder(strings.NewReader(v))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&req); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n\t\treturn\n\t}\n\n\trepo := repository.GetNodeRepository()\n\trequestReceived := time.Now().Unix()\n\n\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n\tfor _, node := range req.Nodes {\n\t\tstate := determineState(node.States)\n\t\tnodeState := schema.NodeStateDB{\n\t\t\tTimeStamp: requestReceived,\n\t\t\tNodeState: state,\n\t\t\tCpusAllocated: node.CpusAllocated,\n\t\t\tMemoryAllocated: node.MemoryAllocated,\n\t\t\tGpusAllocated: node.GpusAllocated,\n\t\t\tHealthState: schema.MonitoringStateFull,\n\t\t\tJobsRunning: node.JobsRunning,\n\t\t}\n\t\tupdates = append(updates, repository.NodeStateUpdate{\n\t\t\tHostname: node.Hostname,\n\t\t\tCluster: req.Cluster,\n\t\t\tNodeState: &nodeState,\n\t\t})\n\t}\n\n\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n\t}\n\n\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n}\n\n// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n// The message must be in line protocol format with measurement=\"nodestate\" and include:\n// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n//\n// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\nfunc (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {\n\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n\t\treturn\n\t}\n\n\td := influx.NewDecoderWithBytes(data)\n\n\tfor d.Next() {\n\t\tm, err := receivers.DecodeInfluxMessage(d)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n\t\t\treturn\n\t\t}\n\n\t\tif !m.IsEvent() {\n\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n\t\t\tcontinue\n\t\t}\n\n\t\tif m.Name() == \"nodestate\" {\n\t\t\tapi.processNodestateEvent(m)\n\t\t} else {\n\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n\t\t}\n\t}\n}\n","structuredPatch":[{"oldStart":387,"oldLines":6,"newStart":387,"newLines":9,"lines":[" //"," // Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000"," func (api *NatsAPI) handleNodeState(subject string, data []byte) {","+ api.nodeSem <- struct{}{}","+ defer func() { <-api.nodeSem }()","+"," if len(data) == 0 {"," cclog.Warnf(\"NATS %s: received empty message\", subject)"," return"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"d7e94c87-1f2a-4e1b-9161-c8c4ea41292f","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"a9a61ff3-ead3-48d1-807b-e2a14ab45568","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01N5TaR6cLdSMWNQuMeYKmWB","type":"message","role":"assistant","content":[{"type":"text","text":"Now let me verify the build compiles:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":353,"cache_read_input_tokens":74949,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":353},"output_tokens":3,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6anFfDoyRxTbWofrkvV","type":"assistant","uuid":"6362acdd-a63c-4cc8-81f5-6b956b1dcd7b","timestamp":"2026-03-16T10:14:40.520Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"6362acdd-a63c-4cc8-81f5-6b956b1dcd7b","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01N5TaR6cLdSMWNQuMeYKmWB","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01CgY2oc22d2vjfwDVzGB6c9","name":"Bash","input":{"command":"go build ./...","description":"Build all packages","timeout":120000},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":353,"cache_read_input_tokens":74949,"output_tokens":120,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":353,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6anFfDoyRxTbWofrkvV","type":"assistant","uuid":"3a9382a3-91d3-40be-808b-39ea30e193f1","timestamp":"2026-03-16T10:14:41.475Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"3a9382a3-91d3-40be-808b-39ea30e193f1","isSidechain":false,"promptId":"34991249-dcfc-497b-827c-92dda3b7ddac","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01CgY2oc22d2vjfwDVzGB6c9","type":"tool_result","content":"(Bash completed with no output)","is_error":false}]},"uuid":"63763e9c-e27e-45bc-b767-44d84c1e8b38","timestamp":"2026-03-16T10:14:48.039Z","toolUseResult":{"stdout":"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"3a9382a3-91d3-40be-808b-39ea30e193f1","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"63763e9c-e27e-45bc-b767-44d84c1e8b38","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01WmhbbndncnszFFK3uYTp3J","type":"message","role":"assistant","content":[{"type":"text","text":"Build succeeds. Let me run the relevant tests:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":119,"cache_read_input_tokens":75302,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":119},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6ao6A15Xjxa9UQNEGG6","type":"assistant","uuid":"8f61a61a-d8ec-4313-b567-ed8a0e8307ac","timestamp":"2026-03-16T10:14:51.354Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"8f61a61a-d8ec-4313-b567-ed8a0e8307ac","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01WmhbbndncnszFFK3uYTp3J","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01BhWi1H4DJBVHWboGS1x2eX","name":"Bash","input":{"command":"go test ./internal/repository/... ./internal/api/... ./internal/auth/... 2>&1","description":"Run tests for modified packages","timeout":120000},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":119,"cache_read_input_tokens":75302,"output_tokens":145,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":119,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6ao6A15Xjxa9UQNEGG6","type":"assistant","uuid":"77d719c1-6757-4d2c-b38f-c672ede8398d","timestamp":"2026-03-16T10:14:52.492Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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{"parentUuid":"294215b8-42db-44b9-97a9-36eeaafa8948","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_012bLfeSzbtpGkqVUqKuL5vW","type":"message","role":"assistant","content":[{"type":"text","text":"All tests pass. Here's a summary of all changes:\n\n**Fix 1 — busy_timeout (contention relief)**\n- `internal/repository/config.go`: Added `BusyTimeoutMs` field (default 60000)\n- `internal/repository/dbConnection.go:73`: Uses configurable `repoConfig.BusyTimeoutMs` instead of hardcoded `5000`\n- `pkg/archive/sqliteBackend.go:105`: Changed hardcoded `busy_timeout` from 5000 to 60000\n\n**Fix 2 — Batch node state updates**\n- `internal/repository/node.go`: Added `NodeStateUpdate` struct and `BatchUpdateNodeStates()` method that runs all lookups+inserts in a single transaction with prepared statements\n- `internal/api/nats.go:348-367`: Builds a slice and calls `BatchUpdateNodeStates` instead of per-node `UpdateNodeState`\n- `internal/api/node.go:119-142`: Same batch approach for the REST path (health checks still run per-node before batching the DB part)\n\n**Fix 3 — LDAP sync race condition**\n- `internal/repository/user.go`: Added `AddUserIfNotExists()` using `INSERT OR IGNORE`\n- `internal/auth/ldap.go:213`: Changed `AddUser` to `AddUserIfNotExists` — sync no longer aborts on concurrent user creation\n\n**Fix 4 — NATS semaphores**\n- `internal/api/nats.go`: Added `jobSem` (cap 8) and `nodeSem` (cap 2) channels to `NatsAPI` struct\n- `handleJobEvent` and `handleNodeState` acquire/release the semaphore, capping concurrent goroutines\n\n**Fix 5 — SyncJobs transaction**\n- `internal/repository/jobCreate.go:72-126`: Wrapped the INSERT...SELECT + DELETE in a single `Beginx()`/`Commit()` transaction, reducing lock acquisitions from 3 to 1"}],"stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":215,"cache_read_input_tokens":75421,"output_tokens":487,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":215,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6ap6cZS2z6UvF1qWoyk","type":"assistant","uuid":"2c888049-2994-4c80-ba93-dda863b33e3c","timestamp":"2026-03-16T10:15:13.958Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"3a41c7a4-abf8-484b-96ae-ee5618eea5ba","version":"2.1.76","gitBranch":"hotfix","slug":"woolly-wandering-narwhal"}
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