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cc-backend/3a/40b75edd68/3/full.jsonl
Jan Eitzinger 2f616cad7d Checkpoint: 3a40b75edd68 
Entire-Session: d4fbf0d1-89b3-4ac5-85d3-56adb5d38709
Entire-Strategy: manual-commit
Entire-Agent: Claude Code
Ephemeral-branch: entire/df93dbe-e3b0c4
2026-03-16 12:13:15 +01:00

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{"parentUuid":"9423b340-30a9-424b-a34f-390446ca7833","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":"Implement the following plan:\n\n# NATS API Throughput Improvements: Configurable Semaphores, Queue Groups, Channel-Based Subscriptions\n\n## Context\n\nThe NATS API has hardcoded semaphore sizes (8 job, 2 node), uses basic `Subscribe()` instead of queue groups, and directly processes messages in NATS callbacks. These limit throughput and scalability.\n\n## Changes\n\n### 1. Configurable semaphore sizes — `internal/config/config.go`\n\nAdd `JobConcurrency` and `NodeConcurrency` fields to `NATSConfig`:\n\n```go\ntype NATSConfig struct {\n SubjectJobEvent string `json:\"subject-job-event\"`\n SubjectNodeState string `json:\"subject-node-state\"`\n QueueGroup string `json:\"queue-group\"`\n JobConcurrency int `json:\"job-concurrency\"`\n NodeConcurrency int `json:\"node-concurrency\"`\n}\n```\n\nDefaults: `JobConcurrency=8`, `NodeConcurrency=2`, `QueueGroup=\"\"` (empty = no queue group for backward compat).\n\n### 2. Queue groups — `internal/api/nats.go`\n\nIn `StartSubscriptions()`, use `SubscribeQueue()` when `QueueGroup` is configured, otherwise fall back to `Subscribe()`. This enables horizontal scaling across multiple cc-backend instances.\n\n### 3. Channel-based subscriptions with worker pool — `internal/api/nats.go`\n\nReplace direct `Subscribe`/`SubscribeQueue` callback model with `SubscribeChan()` + buffered channels + worker goroutines. This:\n- Adds a Go-side buffer (configurable via semaphore size) between NATS delivery and processing\n- Decouples NATS message delivery from processing\n- Workers draw from the channel, applying the same semaphore-like concurrency via channel capacity + worker count\n\nArchitecture:\n```\nNATS server → SubscribeChan(buffered chan) → N worker goroutines → process message\n```\n\nThe number of workers = `JobConcurrency` / `NodeConcurrency`. The channel buffer provides additional absorb capacity for bursts.\n\n### Files to modify\n\n- `internal/config/config.go:117-120` — add fields to `NATSConfig`\n- `internal/api/nats.go` — rework `NewNatsAPI`, `StartSubscriptions`, replace semaphore pattern with channel workers\n- `internal/api/nats_test.go` — update `setupNatsTest` to set new config, tests should still pass\n\n### Verification\n\n- `go build ./...`\n- `go test ./internal/api/...` — all existing tests must pass\n- `go vet ./internal/api/...`\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/96740167-cb62-4e9b-a401-4dce5f9ae536.jsonl"},"uuid":"50ecf7f6-67a3-478d-90d6-62ff0daa6725","timestamp":"2026-03-16T10:50:55.515Z","planContent":"# NATS API Throughput Improvements: Configurable Semaphores, Queue Groups, Channel-Based Subscriptions\n\n## Context\n\nThe NATS API has hardcoded semaphore sizes (8 job, 2 node), uses basic `Subscribe()` instead of queue groups, and directly processes messages in NATS callbacks. These limit throughput and scalability.\n\n## Changes\n\n### 1. Configurable semaphore sizes — `internal/config/config.go`\n\nAdd `JobConcurrency` and `NodeConcurrency` fields to `NATSConfig`:\n\n```go\ntype NATSConfig struct {\n SubjectJobEvent string `json:\"subject-job-event\"`\n SubjectNodeState string `json:\"subject-node-state\"`\n QueueGroup string `json:\"queue-group\"`\n JobConcurrency int `json:\"job-concurrency\"`\n NodeConcurrency int `json:\"node-concurrency\"`\n}\n```\n\nDefaults: `JobConcurrency=8`, `NodeConcurrency=2`, `QueueGroup=\"\"` (empty = no queue group for backward compat).\n\n### 2. Queue groups — `internal/api/nats.go`\n\nIn `StartSubscriptions()`, use `SubscribeQueue()` when `QueueGroup` is configured, otherwise fall back to `Subscribe()`. This enables horizontal scaling across multiple cc-backend instances.\n\n### 3. Channel-based subscriptions with worker pool — `internal/api/nats.go`\n\nReplace direct `Subscribe`/`SubscribeQueue` callback model with `SubscribeChan()` + buffered channels + worker goroutines. This:\n- Adds a Go-side buffer (configurable via semaphore size) between NATS delivery and processing\n- Decouples NATS message delivery from processing\n- Workers draw from the channel, applying the same semaphore-like concurrency via channel capacity + worker count\n\nArchitecture:\n```\nNATS server → SubscribeChan(buffered chan) → N worker goroutines → process message\n```\n\nThe number of workers = `JobConcurrency` / `NodeConcurrency`. The channel buffer provides additional absorb capacity for bursts.\n\n### Files to modify\n\n- `internal/config/config.go:117-120` — add fields to `NATSConfig`\n- `internal/api/nats.go` — rework `NewNatsAPI`, `StartSubscriptions`, replace semaphore pattern with channel workers\n- `internal/api/nats_test.go` — update `setupNatsTest` to set new config, tests should still pass\n\n### Verification\n\n- `go build ./...`\n- `go test ./internal/api/...` — all existing tests must pass\n- `go vet ./internal/api/...`\n","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"c413343b-ab3c-4a93-bcb8-14d1fb769e6f","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01T2v5Tm8kPbHJxS6MPCt1dr","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 config implements the program configuration data structures, validation and parsing\n 7→package config\n 8→\n 9→import (\n 10→\t\"bytes\"\n 11→\t\"encoding/json\"\n 12→\t\"time\"\n 13→\n 14→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 15→\t\"github.com/ClusterCockpit/cc-lib/v2/resampler\"\n 16→)\n 17→\n 18→type ProgramConfig struct {\n 19→\t// Address where the http (or https) server will listen on (for example: 'localhost:80').\n 20→\tAddr string `json:\"addr\"`\n 21→\n 22→\t// Addresses from which secured admin API endpoints can be reached, can be wildcard \"*\"\n 23→\tAPIAllowedIPs []string `json:\"api-allowed-ips\"`\n 24→\n 25→\tAPISubjects *NATSConfig `json:\"api-subjects\"`\n 26→\n 27→\t// Drop root permissions once .env was read and the port was taken.\n 28→\tUser string `json:\"user\"`\n 29→\tGroup string `json:\"group\"`\n 30→\n 31→\t// Disable authentication (for everything: API, Web-UI, ...)\n 32→\tDisableAuthentication bool `json:\"disable-authentication\"`\n 33→\n 34→\t// If `embed-static-files` is true (default), the frontend files are directly\n 35→\t// embeded into the go binary and expected to be in web/frontend. Only if\n 36→\t// it is false the files in `static-files` are served instead.\n 37→\tEmbedStaticFiles bool `json:\"embed-static-files\"`\n 38→\tStaticFiles string `json:\"static-files\"`\n 39→\n 40→\t// Path to SQLite database file\n 41→\tDB string `json:\"db\"`\n 42→\n 43→\tEnableJobTaggers bool `json:\"enable-job-taggers\"`\n 44→\n 45→\t// Validate json input against schema\n 46→\tValidate bool `json:\"validate\"`\n 47→\n 48→\t// If 0 or empty, the session does not expire!\n 49→\tSessionMaxAge string `json:\"session-max-age\"`\n 50→\n 51→\t// If both those options are not empty, use HTTPS using those certificates.\n 52→\tHTTPSCertFile string `json:\"https-cert-file\"`\n 53→\tHTTPSKeyFile string `json:\"https-key-file\"`\n 54→\n 55→\t// If not the empty string and `addr` does not end in \":80\",\n 56→\t// redirect every request incoming at port 80 to that url.\n 57→\tRedirectHTTPTo string `json:\"redirect-http-to\"`\n 58→\n 59→\t// Where to store MachineState files\n 60→\tMachineStateDir string `json:\"machine-state-dir\"`\n 61→\n 62→\t// If not zero, automatically mark jobs as stopped running X seconds longer than their walltime.\n 63→\tStopJobsExceedingWalltime int `json:\"stop-jobs-exceeding-walltime\"`\n 64→\n 65→\t// Defines time X in seconds in which jobs are considered to be \"short\" and will be filtered in specific views.\n 66→\tShortRunningJobsDuration int `json:\"short-running-jobs-duration\"`\n 67→\n 68→\t// Energy Mix CO2 Emission Constant [g/kWh]\n 69→\t// If entered, displays estimated CO2 emission for job based on jobs totalEnergy\n 70→\tEmissionConstant int `json:\"emission-constant\"`\n 71→\n 72→\t// If exists, will enable dynamic zoom in frontend metric plots using the configured values\n 73→\tEnableResampling *ResampleConfig `json:\"resampling\"`\n 74→\n 75→\t// Systemd unit name for log viewer (default: \"clustercockpit\")\n 76→\tSystemdUnit string `json:\"systemd-unit\"`\n 77→\n 78→\t// Node state retention configuration\n 79→\tNodeStateRetention *NodeStateRetention `json:\"nodestate-retention\"`\n 80→\n 81→\t// Database tuning configuration\n 82→\tDbConfig *DbConfig `json:\"db-config\"`\n 83→}\n 84→\n 85→type DbConfig struct {\n 86→\tCacheSizeMB int `json:\"cache-size-mb\"`\n 87→\tSoftHeapLimitMB int `json:\"soft-heap-limit-mb\"`\n 88→\tMaxOpenConnections int `json:\"max-open-connections\"`\n 89→\tMaxIdleConnections int `json:\"max-idle-connections\"`\n 90→\tConnectionMaxIdleTimeMins int `json:\"max-idle-time-minutes\"`\n 91→\tBusyTimeoutMs int `json:\"busy-timeout-ms\"`\n 92→}\n 93→\n 94→type NodeStateRetention struct {\n 95→\tPolicy string `json:\"policy\"` // \"delete\" or \"move\"\n 96→\tAge int `json:\"age\"` // hours, default 24\n 97→\tTargetKind string `json:\"target-kind\"` // \"file\" or \"s3\"\n 98→\tTargetPath string `json:\"target-path\"`\n 99→\tTargetEndpoint string `json:\"target-endpoint\"`\n 100→\tTargetBucket string `json:\"target-bucket\"`\n 101→\tTargetAccessKey string `json:\"target-access-key\"`\n 102→\tTargetSecretKey string `json:\"target-secret-key\"`\n 103→\tTargetRegion string `json:\"target-region\"`\n 104→\tTargetUsePathStyle bool `json:\"target-use-path-style\"`\n 105→\tMaxFileSizeMB int `json:\"max-file-size-mb\"`\n 106→}\n 107→\n 108→type ResampleConfig struct {\n 109→\t// Minimum number of points to trigger resampling of data\n 110→\tMinimumPoints int `json:\"minimum-points\"`\n 111→\t// Array of resampling target resolutions, in seconds; Example: [600,300,60]\n 112→\tResolutions []int `json:\"resolutions\"`\n 113→\t// Trigger next zoom level at less than this many visible datapoints\n 114→\tTrigger int `json:\"trigger\"`\n 115→}\n 116→\n 117→type NATSConfig struct {\n 118→\tSubjectJobEvent string `json:\"subject-job-event\"`\n 119→\tSubjectNodeState string `json:\"subject-node-state\"`\n 120→}\n 121→\n 122→type IntRange struct {\n 123→\tFrom int `json:\"from\"`\n 124→\tTo int `json:\"to\"`\n 125→}\n 126→\n 127→type TimeRange struct {\n 128→\tFrom *time.Time `json:\"from\"`\n 129→\tTo *time.Time `json:\"to\"`\n 130→\tRange string `json:\"range,omitempty\"`\n 131→}\n 132→\n 133→type FilterRanges struct {\n 134→\tDuration *IntRange `json:\"duration\"`\n 135→\tNumNodes *IntRange `json:\"num-nodes\"`\n 136→\tStartTime *TimeRange `json:\"start-time\"`\n 137→}\n 138→\n 139→var Keys ProgramConfig = ProgramConfig{\n 140→\tAddr: \"localhost:8080\",\n 141→\tEmbedStaticFiles: true,\n 142→\tDB: \"./var/job.db\",\n 143→\tSessionMaxAge: \"168h\",\n 144→\tStopJobsExceedingWalltime: 0,\n 145→\tShortRunningJobsDuration: 5 * 60,\n 146→}\n 147→\n 148→func Init(mainConfig json.RawMessage) {\n 149→\tValidate(configSchema, mainConfig)\n 150→\tdec := json.NewDecoder(bytes.NewReader(mainConfig))\n 151→\tdec.DisallowUnknownFields()\n 152→\tif err := dec.Decode(&Keys); err != nil {\n 153→\t\tcclog.Abortf(\"Config Init: Could not decode config file '%s'.\\nError: %s\\n\", mainConfig, err.Error())\n 154→\t}\n 155→\n 156→\tif Keys.EnableResampling != nil && Keys.EnableResampling.MinimumPoints > 0 {\n 157→\t\tresampler.SetMinimumRequiredPoints(Keys.EnableResampling.MinimumPoints)\n 158→\t}\n 159→}\n 160→"}]},"uuid":"14c2066f-ff16-46fe-91f1-331efe4580fa","timestamp":"2026-03-16T10:50:59.130Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/config/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\n// Package config implements the program configuration data structures, validation and parsing\npackage config\n\nimport (\n\t\"bytes\"\n\t\"encoding/json\"\n\t\"time\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/resampler\"\n)\n\ntype ProgramConfig struct {\n\t// Address where the http (or https) server will listen on (for example: 'localhost:80').\n\tAddr string `json:\"addr\"`\n\n\t// Addresses from which secured admin API endpoints can be reached, can be wildcard \"*\"\n\tAPIAllowedIPs []string `json:\"api-allowed-ips\"`\n\n\tAPISubjects *NATSConfig `json:\"api-subjects\"`\n\n\t// Drop root permissions once .env was read and the port was taken.\n\tUser string `json:\"user\"`\n\tGroup string `json:\"group\"`\n\n\t// Disable authentication (for everything: API, Web-UI, ...)\n\tDisableAuthentication bool `json:\"disable-authentication\"`\n\n\t// If `embed-static-files` is true (default), the frontend files are directly\n\t// embeded into the go binary and expected to be in web/frontend. Only if\n\t// it is false the files in `static-files` are served instead.\n\tEmbedStaticFiles bool `json:\"embed-static-files\"`\n\tStaticFiles string `json:\"static-files\"`\n\n\t// Path to SQLite database file\n\tDB string `json:\"db\"`\n\n\tEnableJobTaggers bool `json:\"enable-job-taggers\"`\n\n\t// Validate json input against schema\n\tValidate bool `json:\"validate\"`\n\n\t// If 0 or empty, the session does not expire!\n\tSessionMaxAge string `json:\"session-max-age\"`\n\n\t// If both those options are not empty, use HTTPS using those certificates.\n\tHTTPSCertFile string `json:\"https-cert-file\"`\n\tHTTPSKeyFile string `json:\"https-key-file\"`\n\n\t// If not the empty string and `addr` does not end in \":80\",\n\t// redirect every request incoming at port 80 to that url.\n\tRedirectHTTPTo string `json:\"redirect-http-to\"`\n\n\t// Where to store MachineState files\n\tMachineStateDir string `json:\"machine-state-dir\"`\n\n\t// If not zero, automatically mark jobs as stopped running X seconds longer than their walltime.\n\tStopJobsExceedingWalltime int `json:\"stop-jobs-exceeding-walltime\"`\n\n\t// Defines time X in seconds in which jobs are considered to be \"short\" and will be filtered in specific views.\n\tShortRunningJobsDuration int `json:\"short-running-jobs-duration\"`\n\n\t// Energy Mix CO2 Emission Constant [g/kWh]\n\t// If entered, displays estimated CO2 emission for job based on jobs totalEnergy\n\tEmissionConstant int `json:\"emission-constant\"`\n\n\t// If exists, will enable dynamic zoom in frontend metric plots using the configured values\n\tEnableResampling *ResampleConfig `json:\"resampling\"`\n\n\t// Systemd unit name for log viewer (default: \"clustercockpit\")\n\tSystemdUnit string `json:\"systemd-unit\"`\n\n\t// Node state retention configuration\n\tNodeStateRetention *NodeStateRetention `json:\"nodestate-retention\"`\n\n\t// Database tuning configuration\n\tDbConfig *DbConfig `json:\"db-config\"`\n}\n\ntype DbConfig struct {\n\tCacheSizeMB int `json:\"cache-size-mb\"`\n\tSoftHeapLimitMB int `json:\"soft-heap-limit-mb\"`\n\tMaxOpenConnections int `json:\"max-open-connections\"`\n\tMaxIdleConnections int `json:\"max-idle-connections\"`\n\tConnectionMaxIdleTimeMins int `json:\"max-idle-time-minutes\"`\n\tBusyTimeoutMs int `json:\"busy-timeout-ms\"`\n}\n\ntype NodeStateRetention struct {\n\tPolicy string `json:\"policy\"` // \"delete\" or \"move\"\n\tAge int `json:\"age\"` // hours, default 24\n\tTargetKind string `json:\"target-kind\"` // \"file\" or \"s3\"\n\tTargetPath string `json:\"target-path\"`\n\tTargetEndpoint string `json:\"target-endpoint\"`\n\tTargetBucket string `json:\"target-bucket\"`\n\tTargetAccessKey string `json:\"target-access-key\"`\n\tTargetSecretKey string `json:\"target-secret-key\"`\n\tTargetRegion string `json:\"target-region\"`\n\tTargetUsePathStyle bool `json:\"target-use-path-style\"`\n\tMaxFileSizeMB int `json:\"max-file-size-mb\"`\n}\n\ntype ResampleConfig struct {\n\t// Minimum number of points to trigger resampling of data\n\tMinimumPoints int `json:\"minimum-points\"`\n\t// Array of resampling target resolutions, in seconds; Example: [600,300,60]\n\tResolutions []int `json:\"resolutions\"`\n\t// Trigger next zoom level at less than this many visible datapoints\n\tTrigger int `json:\"trigger\"`\n}\n\ntype NATSConfig struct {\n\tSubjectJobEvent string `json:\"subject-job-event\"`\n\tSubjectNodeState string `json:\"subject-node-state\"`\n}\n\ntype IntRange struct {\n\tFrom int `json:\"from\"`\n\tTo int `json:\"to\"`\n}\n\ntype TimeRange struct {\n\tFrom *time.Time `json:\"from\"`\n\tTo *time.Time `json:\"to\"`\n\tRange string `json:\"range,omitempty\"`\n}\n\ntype FilterRanges struct {\n\tDuration *IntRange `json:\"duration\"`\n\tNumNodes *IntRange `json:\"num-nodes\"`\n\tStartTime *TimeRange `json:\"start-time\"`\n}\n\nvar Keys ProgramConfig = ProgramConfig{\n\tAddr: \"localhost:8080\",\n\tEmbedStaticFiles: true,\n\tDB: \"./var/job.db\",\n\tSessionMaxAge: \"168h\",\n\tStopJobsExceedingWalltime: 0,\n\tShortRunningJobsDuration: 5 * 60,\n}\n\nfunc Init(mainConfig json.RawMessage) {\n\tValidate(configSchema, mainConfig)\n\tdec := json.NewDecoder(bytes.NewReader(mainConfig))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&Keys); err != nil {\n\t\tcclog.Abortf(\"Config Init: Could not decode config file '%s'.\\nError: %s\\n\", mainConfig, err.Error())\n\t}\n\n\tif Keys.EnableResampling != nil && Keys.EnableResampling.MinimumPoints > 0 {\n\t\tresampler.SetMinimumRequiredPoints(Keys.EnableResampling.MinimumPoints)\n\t}\n}\n","numLines":160,"startLine":1,"totalLines":160}},"sourceToolAssistantUUID":"c413343b-ab3c-4a93-bcb8-14d1fb769e6f","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"a6f808f5-8c35-4ef8-84ae-b847fc9759af","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01YPWWA5ktAETM7uGAAxrjmX","toolUseID":"toolu_01YPWWA5ktAETM7uGAAxrjmX","timestamp":"2026-03-16T10:50:59.566Z","uuid":"07bab1a4-dfe9-4d8d-ba77-76a7019a17f8","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"a6f808f5-8c35-4ef8-84ae-b847fc9759af","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01YPWWA5ktAETM7uGAAxrjmX","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→\t// jobSem limits concurrent NATS job event processing to prevent goroutine accumulation\n 68→\t// when the database is under contention.\n 69→\tjobSem chan struct{}\n 70→\t// nodeSem limits concurrent NATS node state processing.\n 71→\tnodeSem chan struct{}\n 72→}\n 73→\n 74→// NewNatsAPI creates a new NatsAPI instance with default dependencies.\n 75→func NewNatsAPI() *NatsAPI {\n 76→\treturn &NatsAPI{\n 77→\t\tJobRepository: repository.GetJobRepository(),\n 78→\t\tjobSem: make(chan struct{}, 8),\n 79→\t\tnodeSem: make(chan struct{}, 2),\n 80→\t}\n 81→}\n 82→\n 83→// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n 84→// Returns an error if the NATS client is not available or subscription fails.\n 85→func (api *NatsAPI) StartSubscriptions() error {\n 86→\tclient := nats.GetClient()\n 87→\tif client == nil {\n 88→\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n 89→\t\treturn nil\n 90→\t}\n 91→\n 92→\tif config.Keys.APISubjects != nil {\n 93→\n 94→\t\ts := config.Keys.APISubjects\n 95→\n 96→\t\tif err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {\n 97→\t\t\treturn err\n 98→\t\t}\n 99→\n 100→\t\tif err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {\n 101→\t\t\treturn err\n 102→\t\t}\n 103→\n 104→\t\tcclog.Info(\"NATS API subscriptions started\")\n 105→\t}\n 106→\treturn nil\n 107→}\n 108→\n 109→// processJobEvent routes job event messages to the appropriate handler based on the \"function\" tag.\n 110→// Validates that required tags and fields are present before processing.\n 111→func (api *NatsAPI) processJobEvent(msg lp.CCMessage) {\n 112→\tfunction, ok := msg.GetTag(\"function\")\n 113→\tif !ok {\n 114→\t\tcclog.Errorf(\"Job event is missing required tag 'function': measurement=%s\", msg.Name())\n 115→\t\treturn\n 116→\t}\n 117→\n 118→\tswitch function {\n 119→\tcase \"start_job\":\n 120→\t\tv, ok := msg.GetEventValue()\n 121→\t\tif !ok {\n 122→\t\t\tcclog.Errorf(\"Job start event is missing event field with JSON payload\")\n 123→\t\t\treturn\n 124→\t\t}\n 125→\t\tapi.handleStartJob(v)\n 126→\n 127→\tcase \"stop_job\":\n 128→\t\tv, ok := msg.GetEventValue()\n 129→\t\tif !ok {\n 130→\t\t\tcclog.Errorf(\"Job stop event is missing event field with JSON payload\")\n 131→\t\t\treturn\n 132→\t\t}\n 133→\t\tapi.handleStopJob(v)\n 134→\n 135→\tdefault:\n 136→\t\tcclog.Warnf(\"Unknown job event function '%s', expected 'start_job' or 'stop_job'\", function)\n 137→\t}\n 138→}\n 139→\n 140→// handleJobEvent processes job-related messages received via NATS using InfluxDB line protocol.\n 141→// The message must be in line protocol format with measurement=\"job\" and include:\n 142→// - tag \"function\" with value \"start_job\" or \"stop_job\"\n 143→// - field \"event\" containing JSON payload (schema.Job or StopJobAPIRequest)\n 144→//\n 145→// Example: job,function=start_job event=\"{\\\"jobId\\\":1001,...}\" 1234567890000000000\n 146→func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n 147→\tapi.jobSem <- struct{}{}\n 148→\tdefer func() { <-api.jobSem }()\n 149→\n 150→\tif len(data) == 0 {\n 151→\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n 152→\t\treturn\n 153→\t}\n 154→\n 155→\td := influx.NewDecoderWithBytes(data)\n 156→\n 157→\tfor d.Next() {\n 158→\t\tm, err := receivers.DecodeInfluxMessage(d)\n 159→\t\tif err != nil {\n 160→\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n 161→\t\t\treturn\n 162→\t\t}\n 163→\n 164→\t\tif !m.IsEvent() {\n 165→\t\t\tcclog.Debugf(\"NATS %s: received non-event message, skipping\", subject)\n 166→\t\t\tcontinue\n 167→\t\t}\n 168→\n 169→\t\tif m.Name() == \"job\" {\n 170→\t\t\tapi.processJobEvent(m)\n 171→\t\t} else {\n 172→\t\t\tcclog.Debugf(\"NATS %s: unexpected measurement name '%s', expected 'job'\", subject, m.Name())\n 173→\t\t}\n 174→\t}\n 175→}\n 176→\n 177→// handleStartJob processes job start messages received via NATS.\n 178→// The payload parameter contains JSON following the schema.Job structure.\n 179→// Jobs are validated, checked for duplicates, and inserted into the database.\n 180→func (api *NatsAPI) handleStartJob(payload string) {\n 181→\tif payload == \"\" {\n 182→\t\tcclog.Error(\"NATS start job: payload is empty\")\n 183→\t\treturn\n 184→\t}\n 185→\treq := schema.Job{\n 186→\t\tShared: \"none\",\n 187→\t\tMonitoringStatus: schema.MonitoringStatusRunningOrArchiving,\n 188→\t}\n 189→\n 190→\tdec := json.NewDecoder(strings.NewReader(payload))\n 191→\tdec.DisallowUnknownFields()\n 192→\tif err := dec.Decode(&req); err != nil {\n 193→\t\tcclog.Errorf(\"NATS start job: parsing request failed: %v\", err)\n 194→\t\treturn\n 195→\t}\n 196→\n 197→\tcclog.Debugf(\"NATS start job: %s\", req.GoString())\n 198→\treq.State = schema.JobStateRunning\n 199→\n 200→\tif err := importer.SanityChecks(&req); err != nil {\n 201→\t\tcclog.Errorf(\"NATS start job: sanity check failed: %v\", err)\n 202→\t\treturn\n 203→\t}\n 204→\n 205→\tvar unlockOnce sync.Once\n 206→\tapi.RepositoryMutex.Lock()\n 207→\tdefer unlockOnce.Do(api.RepositoryMutex.Unlock)\n 208→\n 209→\tjobs, err := api.JobRepository.FindAll(&req.JobID, &req.Cluster, nil)\n 210→\tif err != nil && err != sql.ErrNoRows {\n 211→\t\tcclog.Errorf(\"NATS start job: checking for duplicate failed: %v\", err)\n 212→\t\treturn\n 213→\t}\n 214→\tif err == nil {\n 215→\t\tfor _, job := range jobs {\n 216→\t\t\tif (req.StartTime - job.StartTime) < secondsPerDay {\n 217→\t\t\t\tcclog.Errorf(\"NATS start job: job with jobId %d, cluster %s already exists (dbid: %d)\",\n 218→\t\t\t\t\treq.JobID, req.Cluster, job.ID)\n 219→\t\t\t\treturn\n 220→\t\t\t}\n 221→\t\t}\n 222→\t}\n 223→\n 224→\t// When tags are present, insert directly into the job table so that the\n 225→\t// returned ID can be used with AddTagOrCreate (which queries the job table).\n 226→\tvar id int64\n 227→\tif len(req.Tags) > 0 {\n 228→\t\tid, err = api.JobRepository.StartDirect(&req)\n 229→\t} else {\n 230→\t\tid, err = api.JobRepository.Start(&req)\n 231→\t}\n 232→\tif err != nil {\n 233→\t\tcclog.Errorf(\"NATS start job: insert into database failed: %v\", err)\n 234→\t\treturn\n 235→\t}\n 236→\tunlockOnce.Do(api.RepositoryMutex.Unlock)\n 237→\n 238→\tfor _, tag := range req.Tags {\n 239→\t\tif _, err := api.JobRepository.AddTagOrCreate(nil, id, tag.Type, tag.Name, tag.Scope); err != nil {\n 240→\t\t\tcclog.Errorf(\"NATS start job: adding tag to new job %d failed: %v\", id, err)\n 241→\t\t\treturn\n 242→\t\t}\n 243→\t}\n 244→\n 245→\tcclog.Infof(\"NATS: new job (id: %d): cluster=%s, jobId=%d, user=%s, startTime=%d\",\n 246→\t\tid, req.Cluster, req.JobID, req.User, req.StartTime)\n 247→}\n 248→\n 249→// handleStopJob processes job stop messages received via NATS.\n 250→// The payload parameter contains JSON following the StopJobAPIRequest structure.\n 251→// The job is marked as stopped in the database and archiving is triggered if monitoring is enabled.\n 252→func (api *NatsAPI) handleStopJob(payload string) {\n 253→\tif payload == \"\" {\n 254→\t\tcclog.Error(\"NATS stop job: payload is empty\")\n 255→\t\treturn\n 256→\t}\n 257→\tvar req StopJobAPIRequest\n 258→\n 259→\tdec := json.NewDecoder(strings.NewReader(payload))\n 260→\tdec.DisallowUnknownFields()\n 261→\tif err := dec.Decode(&req); err != nil {\n 262→\t\tcclog.Errorf(\"NATS job stop: parsing request failed: %v\", err)\n 263→\t\treturn\n 264→\t}\n 265→\n 266→\tif req.JobID == nil {\n 267→\t\tcclog.Errorf(\"NATS job stop: the field 'jobId' is required\")\n 268→\t\treturn\n 269→\t}\n 270→\n 271→\tisCached := false\n 272→\tjob, err := api.JobRepository.FindCached(req.JobID, req.Cluster, req.StartTime)\n 273→\tif err != nil {\n 274→\t\t// Not in cache, try main job table\n 275→\t\tjob, err = api.JobRepository.Find(req.JobID, req.Cluster, req.StartTime)\n 276→\t\tif err != nil {\n 277→\t\t\tcclog.Errorf(\"NATS job stop: finding job failed: %v\", err)\n 278→\t\t\treturn\n 279→\t\t}\n 280→\t} else {\n 281→\t\tisCached = true\n 282→\t}\n 283→\n 284→\tif job.State != schema.JobStateRunning {\n 285→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: job has already been stopped (state is: %s)\",\n 286→\t\t\tjob.JobID, job.ID, job.Cluster, job.State)\n 287→\t\treturn\n 288→\t}\n 289→\n 290→\tif job.StartTime > req.StopTime {\n 291→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: stopTime %d must be >= startTime %d\",\n 292→\t\t\tjob.JobID, job.ID, job.Cluster, req.StopTime, job.StartTime)\n 293→\t\treturn\n 294→\t}\n 295→\n 296→\tif req.State != \"\" && !req.State.Valid() {\n 297→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: invalid job state: %#v\",\n 298→\t\t\tjob.JobID, job.ID, job.Cluster, req.State)\n 299→\t\treturn\n 300→\t} else if req.State == \"\" {\n 301→\t\treq.State = schema.JobStateCompleted\n 302→\t}\n 303→\n 304→\tjob.Duration = int32(req.StopTime - job.StartTime)\n 305→\tjob.State = req.State\n 306→\tapi.JobRepository.Mutex.Lock()\n 307→\tdefer api.JobRepository.Mutex.Unlock()\n 308→\n 309→\t// If the job is still in job_cache, transfer it to the job table first\n 310→\tif isCached {\n 311→\t\tnewID, err := api.JobRepository.TransferCachedJobToMain(*job.ID)\n 312→\t\tif err != nil {\n 313→\t\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: transferring cached job failed: %v\",\n 314→\t\t\t\tjob.JobID, *job.ID, job.Cluster, err)\n 315→\t\t\treturn\n 316→\t\t}\n 317→\t\tcclog.Infof(\"NATS: transferred cached job to main table: old id %d -> new id %d (jobId=%d)\", *job.ID, newID, job.JobID)\n 318→\t\tjob.ID = &newID\n 319→\t}\n 320→\n 321→\tif err := api.JobRepository.Stop(*job.ID, job.Duration, job.State, job.MonitoringStatus); err != nil {\n 322→\t\tcclog.Errorf(\"NATS job stop: jobId %d (id %d) on %s: marking job as '%s' failed: %v\",\n 323→\t\t\tjob.JobID, *job.ID, job.Cluster, job.State, err)\n 324→\t\treturn\n 325→\t}\n 326→\n 327→\tcclog.Infof(\"NATS: archiving job (dbid: %d): cluster=%s, jobId=%d, user=%s, startTime=%d, duration=%d, state=%s\",\n 328→\t\t*job.ID, job.Cluster, job.JobID, job.User, job.StartTime, job.Duration, job.State)\n 329→\n 330→\tif job.MonitoringStatus == schema.MonitoringStatusDisabled {\n 331→\t\treturn\n 332→\t}\n 333→\n 334→\tarchiver.TriggerArchiving(job)\n 335→}\n 336→\n 337→// processNodestateEvent extracts and processes node state data from the InfluxDB message.\n 338→// Updates node states in the repository for all nodes in the payload.\n 339→func (api *NatsAPI) processNodestateEvent(msg lp.CCMessage) {\n 340→\tv, ok := msg.GetEventValue()\n 341→\tif !ok {\n 342→\t\tcclog.Errorf(\"Nodestate event is missing event field with JSON payload\")\n 343→\t\treturn\n 344→\t}\n 345→\n 346→\tvar req UpdateNodeStatesRequest\n 347→\n 348→\tdec := json.NewDecoder(strings.NewReader(v))\n 349→\tdec.DisallowUnknownFields()\n 350→\tif err := dec.Decode(&req); err != nil {\n 351→\t\tcclog.Errorf(\"NATS nodestate: parsing request failed: %v\", err)\n 352→\t\treturn\n 353→\t}\n 354→\n 355→\trepo := repository.GetNodeRepository()\n 356→\trequestReceived := time.Now().Unix()\n 357→\n 358→\tupdates := make([]repository.NodeStateUpdate, 0, len(req.Nodes))\n 359→\tfor _, node := range req.Nodes {\n 360→\t\tstate := determineState(node.States)\n 361→\t\tnodeState := schema.NodeStateDB{\n 362→\t\t\tTimeStamp: requestReceived,\n 363→\t\t\tNodeState: state,\n 364→\t\t\tCpusAllocated: node.CpusAllocated,\n 365→\t\t\tMemoryAllocated: node.MemoryAllocated,\n 366→\t\t\tGpusAllocated: node.GpusAllocated,\n 367→\t\t\tHealthState: schema.MonitoringStateFull,\n 368→\t\t\tJobsRunning: node.JobsRunning,\n 369→\t\t}\n 370→\t\tupdates = append(updates, repository.NodeStateUpdate{\n 371→\t\t\tHostname: node.Hostname,\n 372→\t\t\tCluster: req.Cluster,\n 373→\t\t\tNodeState: &nodeState,\n 374→\t\t})\n 375→\t}\n 376→\n 377→\tif err := repo.BatchUpdateNodeStates(updates); err != nil {\n 378→\t\tcclog.Errorf(\"NATS nodestate: batch update for cluster %s failed: %v\", req.Cluster, err)\n 379→\t}\n 380→\n 381→\tcclog.Debugf(\"NATS nodestate: updated %d node states for cluster %s\", len(req.Nodes), req.Cluster)\n 382→}\n 383→\n 384→// handleNodeState processes node state update messages received via NATS using InfluxDB line protocol.\n 385→// The message must be in line protocol format with measurement=\"nodestate\" and include:\n 386→// - field \"event\" containing JSON payload (UpdateNodeStatesRequest)\n 387→//\n 388→// Example: nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[...]}\" 1234567890000000000\n 389→func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n 390→\tapi.nodeSem <- struct{}{}\n 391→\tdefer func() { <-api.nodeSem }()\n 392→\n 393→\tif len(data) == 0 {\n 394→\t\tcclog.Warnf(\"NATS %s: received empty message\", subject)\n 395→\t\treturn\n 396→\t}\n 397→\n 398→\td := influx.NewDecoderWithBytes(data)\n 399→\n 400→\tfor d.Next() {\n 401→\t\tm, err := receivers.DecodeInfluxMessage(d)\n 402→\t\tif err != nil {\n 403→\t\t\tcclog.Errorf(\"NATS %s: failed to decode InfluxDB line protocol message: %v\", subject, err)\n 404→\t\t\treturn\n 405→\t\t}\n 406→\n 407→\t\tif !m.IsEvent() {\n 408→\t\t\tcclog.Warnf(\"NATS %s: received non-event message, skipping\", subject)\n 409→\t\t\tcontinue\n 410→\t\t}\n 411→\n 412→\t\tif m.Name() == \"nodestate\" {\n 413→\t\t\tapi.processNodestateEvent(m)\n 414→\t\t} else {\n 415→\t\t\tcclog.Warnf(\"NATS %s: unexpected measurement name '%s', expected 'nodestate'\", subject, m.Name())\n 416→\t\t}\n 417→\t}\n 418→}\n 419→"}]},"uuid":"6e4cea44-fa83-4f16-a40f-4664f221c019","timestamp":"2026-03-16T10:50:59.566Z","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\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\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)\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":419,"startLine":1,"totalLines":419}},"sourceToolAssistantUUID":"a6f808f5-8c35-4ef8-84ae-b847fc9759af","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"7aafecec-1756-456c-9a0e-de007dab36ea","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Read","command":"callback"},"parentToolUseID":"toolu_01GGPNfPQDrtZ2pjC8hdkK1N","toolUseID":"toolu_01GGPNfPQDrtZ2pjC8hdkK1N","timestamp":"2026-03-16T10:50:59.890Z","uuid":"d8b445f0-3869-4958-9b45-fe7b15bc77b6","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"7aafecec-1756-456c-9a0e-de007dab36ea","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01GGPNfPQDrtZ2pjC8hdkK1N","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 api\n 6→\n 7→import (\n 8→\t\"context\"\n 9→\t\"database/sql\"\n 10→\t\"encoding/json\"\n 11→\t\"fmt\"\n 12→\t\"os\"\n 13→\t\"path/filepath\"\n 14→\t\"testing\"\n 15→\t\"time\"\n 16→\n 17→\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n 18→\t\"github.com/ClusterCockpit/cc-backend/internal/auth\"\n 19→\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n 20→\t\"github.com/ClusterCockpit/cc-backend/internal/graph\"\n 21→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n 22→\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n 23→\t\"github.com/ClusterCockpit/cc-backend/pkg/metricstore\"\n 24→\tccconf \"github.com/ClusterCockpit/cc-lib/v2/ccConfig\"\n 25→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n 26→\tlp \"github.com/ClusterCockpit/cc-lib/v2/ccMessage\"\n 27→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n 28→\n 29→\t_ \"github.com/mattn/go-sqlite3\"\n 30→)\n 31→\n 32→func setupNatsTest(t *testing.T) *NatsAPI {\n 33→\trepository.ResetConnection()\n 34→\n 35→\tconst testconfig = `{\n 36→\t\t\"main\": {\n 37→\t\"addr\": \"0.0.0.0:8080\",\n 38→\t\"validate\": false,\n 39→ \"api-allowed-ips\": [\n 40→ \"*\"\n 41→ ]\n 42→\t},\n 43→\t\"archive\": {\n 44→\t\t\"kind\": \"file\",\n 45→\t\t\"path\": \"./var/job-archive\"\n 46→\t},\n 47→\t\"auth\": {\n 48→ \"jwts\": {\n 49→ \"max-age\": \"2m\"\n 50→ }\n 51→\t}\n 52→}`\n 53→\tconst testclusterJSON = `{\n 54→ \"name\": \"testcluster\",\n 55→\t\t\"subClusters\": [\n 56→\t\t\t{\n 57→\t\t\t\t\"name\": \"sc1\",\n 58→\t\t\t\t\"nodes\": \"host123,host124,host125\",\n 59→\t\t\t\t\"processorType\": \"Intel Core i7-4770\",\n 60→\t\t\t\t\"socketsPerNode\": 1,\n 61→\t\t\t\t\"coresPerSocket\": 4,\n 62→\t\t\t\t\"threadsPerCore\": 2,\n 63→ \"flopRateScalar\": {\n 64→ \"unit\": {\n 65→ \"prefix\": \"G\",\n 66→ \"base\": \"F/s\"\n 67→ },\n 68→ \"value\": 14\n 69→ },\n 70→ \"flopRateSimd\": {\n 71→ \"unit\": {\n 72→ \"prefix\": \"G\",\n 73→ \"base\": \"F/s\"\n 74→ },\n 75→ \"value\": 112\n 76→ },\n 77→ \"memoryBandwidth\": {\n 78→ \"unit\": {\n 79→ \"prefix\": \"G\",\n 80→ \"base\": \"B/s\"\n 81→ },\n 82→ \"value\": 24\n 83→ },\n 84→ \"numberOfNodes\": 70,\n 85→\t\t\t\t\"topology\": {\n 86→\t\t\t\t\t\"node\": [0, 1, 2, 3, 4, 5, 6, 7],\n 87→\t\t\t\t\t\"socket\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n 88→\t\t\t\t\t\"memoryDomain\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n 89→\t\t\t\t\t\"die\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n 90→\t\t\t\t\t\"core\": [[0], [1], [2], [3], [4], [5], [6], [7]]\n 91→\t\t\t\t}\n 92→\t\t\t}\n 93→\t\t],\n 94→\t\t\"metricConfig\": [\n 95→\t\t\t{\n 96→\t\t\t\t\"name\": \"load_one\",\n 97→\t\t\t \"unit\": { \"base\": \"\"},\n 98→\t\t\t\t\"scope\": \"node\",\n 99→\t\t\t\t\"timestep\": 60,\n 100→ \"aggregation\": \"avg\",\n 101→\t\t\t\t\"peak\": 8,\n 102→\t\t\t\t\"normal\": 0,\n 103→\t\t\t\t\"caution\": 0,\n 104→\t\t\t\t\"alert\": 0\n 105→\t\t\t}\n 106→\t\t]\n 107→\t}`\n 108→\n 109→\tcclog.Init(\"info\", true)\n 110→\ttmpdir := t.TempDir()\n 111→\tjobarchive := filepath.Join(tmpdir, \"job-archive\")\n 112→\tif err := os.Mkdir(jobarchive, 0o777); err != nil {\n 113→\t\tt.Fatal(err)\n 114→\t}\n 115→\n 116→\tif err := os.WriteFile(filepath.Join(jobarchive, \"version.txt\"), fmt.Appendf(nil, \"%d\", 3), 0o666); err != nil {\n 117→\t\tt.Fatal(err)\n 118→\t}\n 119→\n 120→\tif err := os.Mkdir(filepath.Join(jobarchive, \"testcluster\"), 0o777); err != nil {\n 121→\t\tt.Fatal(err)\n 122→\t}\n 123→\n 124→\tif err := os.WriteFile(filepath.Join(jobarchive, \"testcluster\", \"cluster.json\"), []byte(testclusterJSON), 0o666); err != nil {\n 125→\t\tt.Fatal(err)\n 126→\t}\n 127→\n 128→\tdbfilepath := filepath.Join(tmpdir, \"test.db\")\n 129→\terr := repository.MigrateDB(dbfilepath)\n 130→\tif err != nil {\n 131→\t\tt.Fatal(err)\n 132→\t}\n 133→\n 134→\tcfgFilePath := filepath.Join(tmpdir, \"config.json\")\n 135→\tif err := os.WriteFile(cfgFilePath, []byte(testconfig), 0o666); err != nil {\n 136→\t\tt.Fatal(err)\n 137→\t}\n 138→\n 139→\tccconf.Init(cfgFilePath)\n 140→\n 141→\t// Load and check main configuration\n 142→\tif cfg := ccconf.GetPackageConfig(\"main\"); cfg != nil {\n 143→\t\tconfig.Init(cfg)\n 144→\t} else {\n 145→\t\tcclog.Abort(\"Main configuration must be present\")\n 146→\t}\n 147→\tarchiveCfg := fmt.Sprintf(\"{\\\"kind\\\": \\\"file\\\",\\\"path\\\": \\\"%s\\\"}\", jobarchive)\n 148→\n 149→\trepository.Connect(dbfilepath)\n 150→\n 151→\tif err := archive.Init(json.RawMessage(archiveCfg)); err != nil {\n 152→\t\tt.Fatal(err)\n 153→\t}\n 154→\n 155→\t// metricstore initialization removed - it's initialized via callback in tests\n 156→\n 157→\tarchiver.Start(repository.GetJobRepository(), context.Background())\n 158→\n 159→\tif cfg := ccconf.GetPackageConfig(\"auth\"); cfg != nil {\n 160→\t\tauth.Init(&cfg)\n 161→\t} else {\n 162→\t\tcclog.Warn(\"Authentication disabled due to missing configuration\")\n 163→\t\tauth.Init(nil)\n 164→\t}\n 165→\n 166→\tgraph.Init()\n 167→\n 168→\treturn NewNatsAPI()\n 169→}\n 170→\n 171→func cleanupNatsTest() {\n 172→\tif err := archiver.Shutdown(5 * time.Second); err != nil {\n 173→\t\tcclog.Warnf(\"Archiver shutdown timeout in tests: %v\", err)\n 174→\t}\n 175→}\n 176→\n 177→func TestNatsHandleStartJob(t *testing.T) {\n 178→\tnatsAPI := setupNatsTest(t)\n 179→\tt.Cleanup(cleanupNatsTest)\n 180→\n 181→\ttests := []struct {\n 182→\t\tname string\n 183→\t\tpayload string\n 184→\t\texpectError bool\n 185→\t\tvalidateJob func(t *testing.T, job *schema.Job)\n 186→\t\tshouldFindJob bool\n 187→\t}{\n 188→\t\t{\n 189→\t\t\tname: \"valid job start\",\n 190→\t\t\tpayload: `{\n 191→\t\t\t\t\"jobId\": 1001,\n 192→\t\t\t\t\"user\": \"testuser1\",\n 193→\t\t\t\t\"project\": \"testproj1\",\n 194→\t\t\t\t\"cluster\": \"testcluster\",\n 195→\t\t\t\t\"partition\": \"main\",\n 196→\t\t\t\t\"walltime\": 7200,\n 197→\t\t\t\t\"numNodes\": 1,\n 198→\t\t\t\t\"numHwthreads\": 8,\n 199→\t\t\t\t\"numAcc\": 0,\n 200→\t\t\t\t\"shared\": \"none\",\n 201→\t\t\t\t\"monitoringStatus\": 1,\n 202→\t\t\t\t\"smt\": 1,\n 203→\t\t\t\t\"resources\": [\n 204→\t\t\t\t\t{\n 205→\t\t\t\t\t\t\"hostname\": \"host123\",\n 206→\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3, 4, 5, 6, 7]\n 207→\t\t\t\t\t}\n 208→\t\t\t\t],\n 209→\t\t\t\t\"startTime\": 1234567890\n 210→\t\t\t}`,\n 211→\t\t\texpectError: false,\n 212→\t\t\tshouldFindJob: true,\n 213→\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n 214→\t\t\t\tif job.JobID != 1001 {\n 215→\t\t\t\t\tt.Errorf(\"expected JobID 1001, got %d\", job.JobID)\n 216→\t\t\t\t}\n 217→\t\t\t\tif job.User != \"testuser1\" {\n 218→\t\t\t\t\tt.Errorf(\"expected user testuser1, got %s\", job.User)\n 219→\t\t\t\t}\n 220→\t\t\t\tif job.State != schema.JobStateRunning {\n 221→\t\t\t\t\tt.Errorf(\"expected state running, got %s\", job.State)\n 222→\t\t\t\t}\n 223→\t\t\t},\n 224→\t\t},\n 225→\t\t{\n 226→\t\t\tname: \"invalid JSON\",\n 227→\t\t\tpayload: `{\n 228→\t\t\t\t\"jobId\": \"not a number\",\n 229→\t\t\t\t\"user\": \"testuser2\"\n 230→\t\t\t}`,\n 231→\t\t\texpectError: true,\n 232→\t\t\tshouldFindJob: false,\n 233→\t\t},\n 234→\t\t{\n 235→\t\t\tname: \"missing required fields\",\n 236→\t\t\tpayload: `{\n 237→\t\t\t\t\"jobId\": 1002\n 238→\t\t\t}`,\n 239→\t\t\texpectError: true,\n 240→\t\t\tshouldFindJob: false,\n 241→\t\t},\n 242→\t\t{\n 243→\t\t\tname: \"job with unknown fields (should fail due to DisallowUnknownFields)\",\n 244→\t\t\tpayload: `{\n 245→\t\t\t\t\"jobId\": 1003,\n 246→\t\t\t\t\"user\": \"testuser3\",\n 247→\t\t\t\t\"project\": \"testproj3\",\n 248→\t\t\t\t\"cluster\": \"testcluster\",\n 249→\t\t\t\t\"partition\": \"main\",\n 250→\t\t\t\t\"walltime\": 3600,\n 251→\t\t\t\t\"numNodes\": 1,\n 252→\t\t\t\t\"numHwthreads\": 8,\n 253→\t\t\t\t\"unknownField\": \"should cause error\",\n 254→\t\t\t\t\"startTime\": 1234567900\n 255→\t\t\t}`,\n 256→\t\t\texpectError: true,\n 257→\t\t\tshouldFindJob: false,\n 258→\t\t},\n 259→\t\t{\n 260→\t\t\tname: \"job with tags\",\n 261→\t\t\tpayload: `{\n 262→\t\t\t\t\"jobId\": 1004,\n 263→\t\t\t\t\"user\": \"testuser4\",\n 264→\t\t\t\t\"project\": \"testproj4\",\n 265→\t\t\t\t\"cluster\": \"testcluster\",\n 266→\t\t\t\t\"partition\": \"main\",\n 267→\t\t\t\t\"walltime\": 3600,\n 268→\t\t\t\t\"numNodes\": 1,\n 269→\t\t\t\t\"numHwthreads\": 8,\n 270→\t\t\t\t\"numAcc\": 0,\n 271→\t\t\t\t\"shared\": \"none\",\n 272→\t\t\t\t\"monitoringStatus\": 1,\n 273→\t\t\t\t\"smt\": 1,\n 274→\t\t\t\t\"resources\": [\n 275→\t\t\t\t\t{\n 276→\t\t\t\t\t\t\"hostname\": \"host123\",\n 277→\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n 278→\t\t\t\t\t}\n 279→\t\t\t\t],\n 280→\t\t\t\t\"tags\": [\n 281→\t\t\t\t\t{\n 282→\t\t\t\t\t\t\"type\": \"test\",\n 283→\t\t\t\t\t\t\"name\": \"testtag\",\n 284→\t\t\t\t\t\t\"scope\": \"testuser4\"\n 285→\t\t\t\t\t}\n 286→\t\t\t\t],\n 287→\t\t\t\t\"startTime\": 1234567910\n 288→\t\t\t}`,\n 289→\t\t\texpectError: false,\n 290→\t\t\tshouldFindJob: true,\n 291→\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n 292→\t\t\t\tif job.JobID != 1004 {\n 293→\t\t\t\t\tt.Errorf(\"expected JobID 1004, got %d\", job.JobID)\n 294→\t\t\t\t}\n 295→\t\t\t},\n 296→\t\t},\n 297→\t}\n 298→\n 299→\tfor _, tt := range tests {\n 300→\t\tt.Run(tt.name, func(t *testing.T) {\n 301→\t\t\tnatsAPI.handleStartJob(tt.payload)\n 302→\t\t\tnatsAPI.JobRepository.SyncJobs()\n 303→\n 304→\t\t\t// Allow some time for async operations\n 305→\t\t\ttime.Sleep(100 * time.Millisecond)\n 306→\n 307→\t\t\tif tt.shouldFindJob {\n 308→\t\t\t\t// Extract jobId from payload\n 309→\t\t\t\tvar payloadMap map[string]any\n 310→\t\t\t\tjson.Unmarshal([]byte(tt.payload), &payloadMap)\n 311→\t\t\t\tjobID := int64(payloadMap[\"jobId\"].(float64))\n 312→\t\t\t\tcluster := payloadMap[\"cluster\"].(string)\n 313→\t\t\t\tstartTime := int64(payloadMap[\"startTime\"].(float64))\n 314→\n 315→\t\t\t\tjob, err := natsAPI.JobRepository.Find(&jobID, &cluster, &startTime)\n 316→\t\t\t\tif err != nil {\n 317→\t\t\t\t\tif !tt.expectError {\n 318→\t\t\t\t\t\tt.Fatalf(\"expected to find job, but got error: %v\", err)\n 319→\t\t\t\t\t}\n 320→\t\t\t\t\treturn\n 321→\t\t\t\t}\n 322→\n 323→\t\t\t\tif tt.validateJob != nil {\n 324→\t\t\t\t\ttt.validateJob(t, job)\n 325→\t\t\t\t}\n 326→\t\t\t}\n 327→\t\t})\n 328→\t}\n 329→}\n 330→\n 331→func TestNatsHandleStopJob(t *testing.T) {\n 332→\tnatsAPI := setupNatsTest(t)\n 333→\tt.Cleanup(cleanupNatsTest)\n 334→\n 335→\t// First, create a running job\n 336→\tstartPayload := `{\n 337→\t\t\"jobId\": 2001,\n 338→\t\t\"user\": \"testuser\",\n 339→\t\t\"project\": \"testproj\",\n 340→\t\t\"cluster\": \"testcluster\",\n 341→\t\t\"partition\": \"main\",\n 342→\t\t\"walltime\": 3600,\n 343→\t\t\"numNodes\": 1,\n 344→\t\t\"numHwthreads\": 8,\n 345→\t\t\"numAcc\": 0,\n 346→\t\t\"shared\": \"none\",\n 347→\t\t\"monitoringStatus\": 1,\n 348→\t\t\"smt\": 1,\n 349→\t\t\"resources\": [\n 350→\t\t\t{\n 351→\t\t\t\t\"hostname\": \"host123\",\n 352→\t\t\t\t\"hwthreads\": [0, 1, 2, 3, 4, 5, 6, 7]\n 353→\t\t\t}\n 354→\t\t],\n 355→\t\t\"startTime\": 1234567890\n 356→\t}`\n 357→\n 358→\tnatsAPI.handleStartJob(startPayload)\n 359→\tnatsAPI.JobRepository.SyncJobs()\n 360→\ttime.Sleep(100 * time.Millisecond)\n 361→\n 362→\ttests := []struct {\n 363→\t\tname string\n 364→\t\tpayload string\n 365→\t\texpectError bool\n 366→\t\tvalidateJob func(t *testing.T, job *schema.Job)\n 367→\t\tsetupJobFunc func() // Optional: create specific test job\n 368→\t}{\n 369→\t\t{\n 370→\t\t\tname: \"valid job stop - completed\",\n 371→\t\t\tpayload: `{\n 372→\t\t\t\t\"jobId\": 2001,\n 373→\t\t\t\t\"cluster\": \"testcluster\",\n 374→\t\t\t\t\"startTime\": 1234567890,\n 375→\t\t\t\t\"jobState\": \"completed\",\n 376→\t\t\t\t\"stopTime\": 1234571490\n 377→\t\t\t}`,\n 378→\t\t\texpectError: false,\n 379→\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n 380→\t\t\t\tif job.State != schema.JobStateCompleted {\n 381→\t\t\t\t\tt.Errorf(\"expected state completed, got %s\", job.State)\n 382→\t\t\t\t}\n 383→\t\t\t\texpectedDuration := int32(1234571490 - 1234567890)\n 384→\t\t\t\tif job.Duration != expectedDuration {\n 385→\t\t\t\t\tt.Errorf(\"expected duration %d, got %d\", expectedDuration, job.Duration)\n 386→\t\t\t\t}\n 387→\t\t\t},\n 388→\t\t},\n 389→\t\t{\n 390→\t\t\tname: \"valid job stop - failed\",\n 391→\t\t\tsetupJobFunc: func() {\n 392→\t\t\t\tstartPayloadFailed := `{\n 393→\t\t\t\t\t\"jobId\": 2002,\n 394→\t\t\t\t\t\"user\": \"testuser\",\n 395→\t\t\t\t\t\"project\": \"testproj\",\n 396→\t\t\t\t\t\"cluster\": \"testcluster\",\n 397→\t\t\t\t\t\"partition\": \"main\",\n 398→\t\t\t\t\t\"walltime\": 3600,\n 399→\t\t\t\t\t\"numNodes\": 1,\n 400→\t\t\t\t\t\"numHwthreads\": 8,\n 401→\t\t\t\t\t\"numAcc\": 0,\n 402→\t\t\t\t\t\"shared\": \"none\",\n 403→\t\t\t\t\t\"monitoringStatus\": 1,\n 404→\t\t\t\t\t\"smt\": 1,\n 405→\t\t\t\t\t\"resources\": [\n 406→\t\t\t\t\t\t{\n 407→\t\t\t\t\t\t\t\"hostname\": \"host123\",\n 408→\t\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n 409→\t\t\t\t\t\t}\n 410→\t\t\t\t\t],\n 411→\t\t\t\t\t\"startTime\": 1234567900\n 412→\t\t\t\t}`\n 413→\t\t\t\tnatsAPI.handleStartJob(startPayloadFailed)\n 414→\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n 415→\t\t\t\ttime.Sleep(100 * time.Millisecond)\n 416→\t\t\t},\n 417→\t\t\tpayload: `{\n 418→\t\t\t\t\"jobId\": 2002,\n 419→\t\t\t\t\"cluster\": \"testcluster\",\n 420→\t\t\t\t\"startTime\": 1234567900,\n 421→\t\t\t\t\"jobState\": \"failed\",\n 422→\t\t\t\t\"stopTime\": 1234569900\n 423→\t\t\t}`,\n 424→\t\t\texpectError: false,\n 425→\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n 426→\t\t\t\tif job.State != schema.JobStateFailed {\n 427→\t\t\t\t\tt.Errorf(\"expected state failed, got %s\", job.State)\n 428→\t\t\t\t}\n 429→\t\t\t},\n 430→\t\t},\n 431→\t\t{\n 432→\t\t\tname: \"invalid JSON\",\n 433→\t\t\tpayload: `{\n 434→\t\t\t\t\"jobId\": \"not a number\"\n 435→\t\t\t}`,\n 436→\t\t\texpectError: true,\n 437→\t\t},\n 438→\t\t{\n 439→\t\t\tname: \"missing jobId\",\n 440→\t\t\tpayload: `{\n 441→\t\t\t\t\"cluster\": \"testcluster\",\n 442→\t\t\t\t\"jobState\": \"completed\",\n 443→\t\t\t\t\"stopTime\": 1234571490\n 444→\t\t\t}`,\n 445→\t\t\texpectError: true,\n 446→\t\t},\n 447→\t\t{\n 448→\t\t\tname: \"invalid job state\",\n 449→\t\t\tsetupJobFunc: func() {\n 450→\t\t\t\tstartPayloadInvalid := `{\n 451→\t\t\t\t\t\"jobId\": 2003,\n 452→\t\t\t\t\t\"user\": \"testuser\",\n 453→\t\t\t\t\t\"project\": \"testproj\",\n 454→\t\t\t\t\t\"cluster\": \"testcluster\",\n 455→\t\t\t\t\t\"partition\": \"main\",\n 456→\t\t\t\t\t\"walltime\": 3600,\n 457→\t\t\t\t\t\"numNodes\": 1,\n 458→\t\t\t\t\t\"numHwthreads\": 8,\n 459→\t\t\t\t\t\"numAcc\": 0,\n 460→\t\t\t\t\t\"shared\": \"none\",\n 461→\t\t\t\t\t\"monitoringStatus\": 1,\n 462→\t\t\t\t\t\"smt\": 1,\n 463→\t\t\t\t\t\"resources\": [\n 464→\t\t\t\t\t\t{\n 465→\t\t\t\t\t\t\t\"hostname\": \"host123\",\n 466→\t\t\t\t\t\t\t\"hwthreads\": [0, 1]\n 467→\t\t\t\t\t\t}\n 468→\t\t\t\t\t],\n 469→\t\t\t\t\t\"startTime\": 1234567910\n 470→\t\t\t\t}`\n 471→\t\t\t\tnatsAPI.handleStartJob(startPayloadInvalid)\n 472→\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n 473→\t\t\t\ttime.Sleep(100 * time.Millisecond)\n 474→\t\t\t},\n 475→\t\t\tpayload: `{\n 476→\t\t\t\t\"jobId\": 2003,\n 477→\t\t\t\t\"cluster\": \"testcluster\",\n 478→\t\t\t\t\"startTime\": 1234567910,\n 479→\t\t\t\t\"jobState\": \"invalid_state\",\n 480→\t\t\t\t\"stopTime\": 1234571510\n 481→\t\t\t}`,\n 482→\t\t\texpectError: true,\n 483→\t\t},\n 484→\t\t{\n 485→\t\t\tname: \"stopTime before startTime\",\n 486→\t\t\tsetupJobFunc: func() {\n 487→\t\t\t\tstartPayloadTime := `{\n 488→\t\t\t\t\t\"jobId\": 2004,\n 489→\t\t\t\t\t\"user\": \"testuser\",\n 490→\t\t\t\t\t\"project\": \"testproj\",\n 491→\t\t\t\t\t\"cluster\": \"testcluster\",\n 492→\t\t\t\t\t\"partition\": \"main\",\n 493→\t\t\t\t\t\"walltime\": 3600,\n 494→\t\t\t\t\t\"numNodes\": 1,\n 495→\t\t\t\t\t\"numHwthreads\": 8,\n 496→\t\t\t\t\t\"numAcc\": 0,\n 497→\t\t\t\t\t\"shared\": \"none\",\n 498→\t\t\t\t\t\"monitoringStatus\": 1,\n 499→\t\t\t\t\t\"smt\": 1,\n 500→\t\t\t\t\t\"resources\": [\n 501→\t\t\t\t\t\t{\n 502→\t\t\t\t\t\t\t\"hostname\": \"host123\",\n 503→\t\t\t\t\t\t\t\"hwthreads\": [0]\n 504→\t\t\t\t\t\t}\n 505→\t\t\t\t\t],\n 506→\t\t\t\t\t\"startTime\": 1234567920\n 507→\t\t\t\t}`\n 508→\t\t\t\tnatsAPI.handleStartJob(startPayloadTime)\n 509→\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n 510→\t\t\t\ttime.Sleep(100 * time.Millisecond)\n 511→\t\t\t},\n 512→\t\t\tpayload: `{\n 513→\t\t\t\t\"jobId\": 2004,\n 514→\t\t\t\t\"cluster\": \"testcluster\",\n 515→\t\t\t\t\"startTime\": 1234567920,\n 516→\t\t\t\t\"jobState\": \"completed\",\n 517→\t\t\t\t\"stopTime\": 1234567900\n 518→\t\t\t}`,\n 519→\t\t\texpectError: true,\n 520→\t\t},\n 521→\t\t{\n 522→\t\t\tname: \"job not found\",\n 523→\t\t\tpayload: `{\n 524→\t\t\t\t\"jobId\": 99999,\n 525→\t\t\t\t\"cluster\": \"testcluster\",\n 526→\t\t\t\t\"startTime\": 1234567890,\n 527→\t\t\t\t\"jobState\": \"completed\",\n 528→\t\t\t\t\"stopTime\": 1234571490\n 529→\t\t\t}`,\n 530→\t\t\texpectError: true,\n 531→\t\t},\n 532→\t}\n 533→\n 534→\ttestData := schema.JobData{\n 535→\t\t\"load_one\": map[schema.MetricScope]*schema.JobMetric{\n 536→\t\t\tschema.MetricScopeNode: {\n 537→\t\t\t\tUnit: schema.Unit{Base: \"load\"},\n 538→\t\t\t\tTimestep: 60,\n 539→\t\t\t\tSeries: []schema.Series{\n 540→\t\t\t\t\t{\n 541→\t\t\t\t\t\tHostname: \"host123\",\n 542→\t\t\t\t\t\tStatistics: schema.MetricStatistics{Min: 0.1, Avg: 0.2, Max: 0.3},\n 543→\t\t\t\t\t\tData: []schema.Float{0.1, 0.1, 0.1, 0.2, 0.2, 0.2, 0.3, 0.3, 0.3},\n 544→\t\t\t\t\t},\n 545→\t\t\t\t},\n 546→\t\t\t},\n 547→\t\t},\n 548→\t}\n 549→\n 550→\tmetricstore.TestLoadDataCallback = func(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context, resolution int) (schema.JobData, error) {\n 551→\t\treturn testData, nil\n 552→\t}\n 553→\n 554→\tfor _, tt := range tests {\n 555→\t\tt.Run(tt.name, func(t *testing.T) {\n 556→\t\t\tif tt.setupJobFunc != nil {\n 557→\t\t\t\ttt.setupJobFunc()\n 558→\t\t\t}\n 559→\n 560→\t\t\tnatsAPI.handleStopJob(tt.payload)\n 561→\n 562→\t\t\t// Allow some time for async operations\n 563→\t\t\ttime.Sleep(100 * time.Millisecond)\n 564→\n 565→\t\t\tif !tt.expectError && tt.validateJob != nil {\n 566→\t\t\t\t// Extract job details from payload\n 567→\t\t\t\tvar payloadMap map[string]any\n 568→\t\t\t\tjson.Unmarshal([]byte(tt.payload), &payloadMap)\n 569→\t\t\t\tjobID := int64(payloadMap[\"jobId\"].(float64))\n 570→\t\t\t\tcluster := payloadMap[\"cluster\"].(string)\n 571→\n 572→\t\t\t\tvar startTime *int64\n 573→\t\t\t\tif st, ok := payloadMap[\"startTime\"]; ok {\n 574→\t\t\t\t\tt := int64(st.(float64))\n 575→\t\t\t\t\tstartTime = &t\n 576→\t\t\t\t}\n 577→\n 578→\t\t\t\tjob, err := natsAPI.JobRepository.Find(&jobID, &cluster, startTime)\n 579→\t\t\t\tif err != nil {\n 580→\t\t\t\t\tt.Fatalf(\"expected to find job, but got error: %v\", err)\n 581→\t\t\t\t}\n 582→\n 583→\t\t\t\ttt.validateJob(t, job)\n 584→\t\t\t}\n 585→\t\t})\n 586→\t}\n 587→}\n 588→\n 589→func TestNatsHandleNodeState(t *testing.T) {\n 590→\tnatsAPI := setupNatsTest(t)\n 591→\tt.Cleanup(cleanupNatsTest)\n 592→\n 593→\ttests := []struct {\n 594→\t\tname string\n 595→\t\tdata []byte\n 596→\t\texpectError bool\n 597→\t\tvalidateFn func(t *testing.T)\n 598→\t}{\n 599→\t\t{\n 600→\t\t\tname: \"valid node state update\",\n 601→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"states\\\":[\\\"allocated\\\"],\\\"cpusAllocated\\\":8,\\\"memoryAllocated\\\":16384,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":1}]}\" 1234567890000000000`),\n 602→\t\t\texpectError: false,\n 603→\t\t\tvalidateFn: func(t *testing.T) {\n 604→\t\t\t\t// In a full test, we would verify the node state was updated in the database\n 605→\t\t\t\t// For now, just ensure no error occurred\n 606→\t\t\t},\n 607→\t\t},\n 608→\t\t{\n 609→\t\t\tname: \"multiple nodes\",\n 610→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"host124\\\",\\\"states\\\":[\\\"allocated\\\"],\\\"cpusAllocated\\\":4,\\\"memoryAllocated\\\":8192,\\\"gpusAllocated\\\":1,\\\"jobsRunning\\\":1}]}\" 1234567890000000000`),\n 611→\t\t\texpectError: false,\n 612→\t\t},\n 613→\t\t{\n 614→\t\t\tname: \"invalid JSON in event field\",\n 615→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":\\\"not an array\\\"}\" 1234567890000000000`),\n 616→\t\t\texpectError: true,\n 617→\t\t},\n 618→\t\t{\n 619→\t\t\tname: \"empty nodes array\",\n 620→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[]}\" 1234567890000000000`),\n 621→\t\t\texpectError: false, // Empty array should not cause error\n 622→\t\t},\n 623→\t\t{\n 624→\t\t\tname: \"invalid line protocol format\",\n 625→\t\t\tdata: []byte(`invalid line protocol format`),\n 626→\t\t\texpectError: true,\n 627→\t\t},\n 628→\t\t{\n 629→\t\t\tname: \"empty data\",\n 630→\t\t\tdata: []byte(``),\n 631→\t\t\texpectError: false, // Should be handled gracefully with warning\n 632→\t\t},\n 633→\t}\n 634→\n 635→\tfor _, tt := range tests {\n 636→\t\tt.Run(tt.name, func(t *testing.T) {\n 637→\t\t\tnatsAPI.handleNodeState(\"test.subject\", tt.data)\n 638→\n 639→\t\t\t// Allow some time for async operations\n 640→\t\t\ttime.Sleep(50 * time.Millisecond)\n 641→\n 642→\t\t\tif tt.validateFn != nil {\n 643→\t\t\t\ttt.validateFn(t)\n 644→\t\t\t}\n 645→\t\t})\n 646→\t}\n 647→}\n 648→\n 649→func TestNatsProcessJobEvent(t *testing.T) {\n 650→\tnatsAPI := setupNatsTest(t)\n 651→\tt.Cleanup(cleanupNatsTest)\n 652→\n 653→\tmsgStartJob, err := lp.NewMessage(\n 654→\t\t\"job\",\n 655→\t\tmap[string]string{\"function\": \"start_job\"},\n 656→\t\tnil,\n 657→\t\tmap[string]any{\n 658→\t\t\t\"event\": `{\n 659→\t\t\t\t\"jobId\": 3001,\n 660→\t\t\t\t\"user\": \"testuser\",\n 661→\t\t\t\t\"project\": \"testproj\",\n 662→\t\t\t\t\"cluster\": \"testcluster\",\n 663→\t\t\t\t\"partition\": \"main\",\n 664→\t\t\t\t\"walltime\": 3600,\n 665→\t\t\t\t\"numNodes\": 1,\n 666→\t\t\t\t\"numHwthreads\": 8,\n 667→\t\t\t\t\"numAcc\": 0,\n 668→\t\t\t\t\"shared\": \"none\",\n 669→\t\t\t\t\"monitoringStatus\": 1,\n 670→\t\t\t\t\"smt\": 1,\n 671→\t\t\t\t\"resources\": [\n 672→\t\t\t\t\t{\n 673→\t\t\t\t\t\t\"hostname\": \"host123\",\n 674→\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n 675→\t\t\t\t\t}\n 676→\t\t\t\t],\n 677→\t\t\t\t\"startTime\": 1234567890\n 678→\t\t\t}`,\n 679→\t\t},\n 680→\t\ttime.Now(),\n 681→\t)\n 682→\tif err != nil {\n 683→\t\tt.Fatalf(\"failed to create test message: %v\", err)\n 684→\t}\n 685→\n 686→\tmsgMissingTag, err := lp.NewMessage(\n 687→\t\t\"job\",\n 688→\t\tmap[string]string{},\n 689→\t\tnil,\n 690→\t\tmap[string]any{\n 691→\t\t\t\"event\": `{}`,\n 692→\t\t},\n 693→\t\ttime.Now(),\n 694→\t)\n 695→\tif err != nil {\n 696→\t\tt.Fatalf(\"failed to create test message: %v\", err)\n 697→\t}\n 698→\n 699→\tmsgUnknownFunc, err := lp.NewMessage(\n 700→\t\t\"job\",\n 701→\t\tmap[string]string{\"function\": \"unknown_function\"},\n 702→\t\tnil,\n 703→\t\tmap[string]any{\n 704→\t\t\t\"event\": `{}`,\n 705→\t\t},\n 706→\t\ttime.Now(),\n 707→\t)\n 708→\tif err != nil {\n 709→\t\tt.Fatalf(\"failed to create test message: %v\", err)\n 710→\t}\n 711→\n 712→\ttests := []struct {\n 713→\t\tname string\n 714→\t\tmessage lp.CCMessage\n 715→\t\texpectError bool\n 716→\t}{\n 717→\t\t{\n 718→\t\t\tname: \"start_job function\",\n 719→\t\t\tmessage: msgStartJob,\n 720→\t\t\texpectError: false,\n 721→\t\t},\n 722→\t\t{\n 723→\t\t\tname: \"missing function tag\",\n 724→\t\t\tmessage: msgMissingTag,\n 725→\t\t\texpectError: true,\n 726→\t\t},\n 727→\t\t{\n 728→\t\t\tname: \"unknown function\",\n 729→\t\t\tmessage: msgUnknownFunc,\n 730→\t\t\texpectError: false,\n 731→\t\t},\n 732→\t}\n 733→\n 734→\tfor _, tt := range tests {\n 735→\t\tt.Run(tt.name, func(t *testing.T) {\n 736→\t\t\tnatsAPI.processJobEvent(tt.message)\n 737→\t\t\ttime.Sleep(50 * time.Millisecond)\n 738→\t\t})\n 739→\t}\n 740→}\n 741→\n 742→func TestNatsHandleJobEvent(t *testing.T) {\n 743→\tnatsAPI := setupNatsTest(t)\n 744→\tt.Cleanup(cleanupNatsTest)\n 745→\n 746→\ttests := []struct {\n 747→\t\tname string\n 748→\t\tdata []byte\n 749→\t\texpectError bool\n 750→\t}{\n 751→\t\t{\n 752→\t\t\tname: \"valid influx line protocol\",\n 753→\t\t\tdata: []byte(`job,function=start_job event=\"{\\\"jobId\\\":4001,\\\"user\\\":\\\"testuser\\\",\\\"project\\\":\\\"testproj\\\",\\\"cluster\\\":\\\"testcluster\\\",\\\"partition\\\":\\\"main\\\",\\\"walltime\\\":3600,\\\"numNodes\\\":1,\\\"numHwthreads\\\":8,\\\"numAcc\\\":0,\\\"shared\\\":\\\"none\\\",\\\"monitoringStatus\\\":1,\\\"smt\\\":1,\\\"resources\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"hwthreads\\\":[0,1,2,3]}],\\\"startTime\\\":1234567890}\" 1234567890000000000`),\n 754→\t\t\texpectError: false,\n 755→\t\t},\n 756→\t\t{\n 757→\t\t\tname: \"invalid influx line protocol\",\n 758→\t\t\tdata: []byte(`invalid line protocol format`),\n 759→\t\t\texpectError: true,\n 760→\t\t},\n 761→\t\t{\n 762→\t\t\tname: \"empty data\",\n 763→\t\t\tdata: []byte(``),\n 764→\t\t\texpectError: false, // Decoder should handle empty input gracefully\n 765→\t\t},\n 766→\t}\n 767→\n 768→\tfor _, tt := range tests {\n 769→\t\tt.Run(tt.name, func(t *testing.T) {\n 770→\t\t\t// HandleJobEvent doesn't return errors, it logs them\n 771→\t\t\t// We're just ensuring it doesn't panic\n 772→\t\t\tnatsAPI.handleJobEvent(\"test.subject\", tt.data)\n 773→\t\t\ttime.Sleep(50 * time.Millisecond)\n 774→\t\t})\n 775→\t}\n 776→}\n 777→\n 778→func TestNatsHandleJobEventEdgeCases(t *testing.T) {\n 779→\tnatsAPI := setupNatsTest(t)\n 780→\tt.Cleanup(cleanupNatsTest)\n 781→\n 782→\ttests := []struct {\n 783→\t\tname string\n 784→\t\tdata []byte\n 785→\t\texpectError bool\n 786→\t\tdescription string\n 787→\t}{\n 788→\t\t{\n 789→\t\t\tname: \"non-event message (metric data)\",\n 790→\t\t\tdata: []byte(`job,function=start_job value=123.45 1234567890000000000`),\n 791→\t\t\texpectError: false,\n 792→\t\t\tdescription: \"Should skip non-event messages gracefully\",\n 793→\t\t},\n 794→\t\t{\n 795→\t\t\tname: \"wrong measurement name\",\n 796→\t\t\tdata: []byte(`wrongmeasurement,function=start_job event=\"{}\" 1234567890000000000`),\n 797→\t\t\texpectError: false,\n 798→\t\t\tdescription: \"Should warn about unexpected measurement but not fail\",\n 799→\t\t},\n 800→\t\t{\n 801→\t\t\tname: \"missing event field\",\n 802→\t\t\tdata: []byte(`job,function=start_job other_field=\"value\" 1234567890000000000`),\n 803→\t\t\texpectError: true,\n 804→\t\t\tdescription: \"Should error when event field is missing\",\n 805→\t\t},\n 806→\t\t{\n 807→\t\t\tname: \"multiple measurements in one message\",\n 808→\t\t\tdata: []byte(\"job,function=start_job event=\\\"{}\\\" 1234567890000000000\\njob,function=stop_job event=\\\"{}\\\" 1234567890000000000\"),\n 809→\t\t\texpectError: false,\n 810→\t\t\tdescription: \"Should process multiple lines\",\n 811→\t\t},\n 812→\t\t{\n 813→\t\t\tname: \"escaped quotes in JSON payload\",\n 814→\t\t\tdata: []byte(`job,function=start_job event=\"{\\\"jobId\\\":6001,\\\"user\\\":\\\"test\\\\\\\"user\\\",\\\"cluster\\\":\\\"test\\\"}\" 1234567890000000000`),\n 815→\t\t\texpectError: true,\n 816→\t\t\tdescription: \"Should handle escaped quotes (though JSON parsing may fail)\",\n 817→\t\t},\n 818→\t}\n 819→\n 820→\tfor _, tt := range tests {\n 821→\t\tt.Run(tt.name, func(t *testing.T) {\n 822→\t\t\tnatsAPI.handleJobEvent(\"test.subject\", tt.data)\n 823→\t\t\ttime.Sleep(50 * time.Millisecond)\n 824→\t\t})\n 825→\t}\n 826→}\n 827→\n 828→func TestNatsHandleNodeStateEdgeCases(t *testing.T) {\n 829→\tnatsAPI := setupNatsTest(t)\n 830→\tt.Cleanup(cleanupNatsTest)\n 831→\n 832→\ttests := []struct {\n 833→\t\tname string\n 834→\t\tdata []byte\n 835→\t\texpectError bool\n 836→\t\tdescription string\n 837→\t}{\n 838→\t\t{\n 839→\t\t\tname: \"missing cluster field in JSON\",\n 840→\t\t\tdata: []byte(`nodestate event=\"{\\\"nodes\\\":[]}\" 1234567890000000000`),\n 841→\t\t\texpectError: true,\n 842→\t\t\tdescription: \"Should fail when cluster is missing\",\n 843→\t\t},\n 844→\t\t{\n 845→\t\t\tname: \"malformed JSON with unescaped quotes\",\n 846→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"test\"cluster\\\",\\\"nodes\\\":[]}\" 1234567890000000000`),\n 847→\t\t\texpectError: true,\n 848→\t\t\tdescription: \"Should fail on malformed JSON\",\n 849→\t\t},\n 850→\t\t{\n 851→\t\t\tname: \"unicode characters in hostname\",\n 852→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host-ñ123\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0}]}\" 1234567890000000000`),\n 853→\t\t\texpectError: false,\n 854→\t\t\tdescription: \"Should handle unicode characters\",\n 855→\t\t},\n 856→\t\t{\n 857→\t\t\tname: \"very large node count\",\n 858→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node1\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"node2\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"node3\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0}]}\" 1234567890000000000`),\n 859→\t\t\texpectError: false,\n 860→\t\t\tdescription: \"Should handle multiple nodes efficiently\",\n 861→\t\t},\n 862→\t\t{\n 863→\t\t\tname: \"timestamp in past\",\n 864→\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[]}\" 1000000000000000000`),\n 865→\t\t\texpectError: false,\n 866→\t\t\tdescription: \"Should accept any valid timestamp\",\n 867→\t\t},\n 868→\t}\n 869→\n 870→\tfor _, tt := range tests {\n 871→\t\tt.Run(tt.name, func(t *testing.T) {\n 872→\t\t\tnatsAPI.handleNodeState(\"test.subject\", tt.data)\n 873→\t\t\ttime.Sleep(50 * time.Millisecond)\n 874→\t\t})\n 875→\t}\n 876→}\n 877→\n 878→func TestNatsHandleStartJobDuplicatePrevention(t *testing.T) {\n 879→\tnatsAPI := setupNatsTest(t)\n 880→\tt.Cleanup(cleanupNatsTest)\n 881→\n 882→\t// Start a job\n 883→\tpayload := `{\n 884→\t\t\"jobId\": 5001,\n 885→\t\t\"user\": \"testuser\",\n 886→\t\t\"project\": \"testproj\",\n 887→\t\t\"cluster\": \"testcluster\",\n 888→\t\t\"partition\": \"main\",\n 889→\t\t\"walltime\": 3600,\n 890→\t\t\"numNodes\": 1,\n 891→\t\t\"numHwthreads\": 8,\n 892→\t\t\"numAcc\": 0,\n 893→\t\t\"shared\": \"none\",\n 894→\t\t\"monitoringStatus\": 1,\n 895→\t\t\"smt\": 1,\n 896→\t\t\"resources\": [\n 897→\t\t\t{\n 898→\t\t\t\t\"hostname\": \"host123\",\n 899→\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n 900→\t\t\t}\n 901→\t\t],\n 902→\t\t\"startTime\": 1234567890\n 903→\t}`\n 904→\n 905→\tnatsAPI.handleStartJob(payload)\n 906→\tnatsAPI.JobRepository.SyncJobs()\n 907→\ttime.Sleep(100 * time.Millisecond)\n 908→\n 909→\t// Try to start the same job again (within 24 hours)\n 910→\tduplicatePayload := `{\n 911→\t\t\"jobId\": 5001,\n 912→\t\t\"user\": \"testuser\",\n 913→\t\t\"project\": \"testproj\",\n 914→\t\t\"cluster\": \"testcluster\",\n 915→\t\t\"partition\": \"main\",\n 916→\t\t\"walltime\": 3600,\n 917→\t\t\"numNodes\": 1,\n 918→\t\t\"numHwthreads\": 8,\n 919→\t\t\"numAcc\": 0,\n 920→\t\t\"shared\": \"none\",\n 921→\t\t\"monitoringStatus\": 1,\n 922→\t\t\"smt\": 1,\n 923→\t\t\"resources\": [\n 924→\t\t\t{\n 925→\t\t\t\t\"hostname\": \"host123\",\n 926→\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n 927→\t\t\t}\n 928→\t\t],\n 929→\t\t\"startTime\": 1234567900\n 930→\t}`\n 931→\n 932→\tnatsAPI.handleStartJob(duplicatePayload)\n 933→\tnatsAPI.JobRepository.SyncJobs()\n 934→\ttime.Sleep(100 * time.Millisecond)\n 935→\n 936→\t// Verify only one job exists\n 937→\tjobID := int64(5001)\n 938→\tcluster := \"testcluster\"\n 939→\tjobs, err := natsAPI.JobRepository.FindAll(&jobID, &cluster, nil)\n 940→\tif err != nil && err != sql.ErrNoRows {\n 941→\t\tt.Fatalf(\"unexpected error: %v\", err)\n 942→\t}\n 943→\n 944→\tif len(jobs) != 1 {\n 945→\t\tt.Errorf(\"expected 1 job, got %d\", len(jobs))\n 946→\t}\n 947→}\n 948→"}]},"uuid":"6bb94bed-c812-492c-b9db-832170db7863","timestamp":"2026-03-16T10:50:59.890Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats_test.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 api\n\nimport (\n\t\"context\"\n\t\"database/sql\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"os\"\n\t\"path/filepath\"\n\t\"testing\"\n\t\"time\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/archiver\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/auth\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/config\"\n\t\"github.com/ClusterCockpit/cc-backend/internal/graph\"\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\tccconf \"github.com/ClusterCockpit/cc-lib/v2/ccConfig\"\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/schema\"\n\n\t_ \"github.com/mattn/go-sqlite3\"\n)\n\nfunc setupNatsTest(t *testing.T) *NatsAPI {\n\trepository.ResetConnection()\n\n\tconst testconfig = `{\n\t\t\"main\": {\n\t\"addr\": \"0.0.0.0:8080\",\n\t\"validate\": false,\n \"api-allowed-ips\": [\n \"*\"\n ]\n\t},\n\t\"archive\": {\n\t\t\"kind\": \"file\",\n\t\t\"path\": \"./var/job-archive\"\n\t},\n\t\"auth\": {\n \"jwts\": {\n \"max-age\": \"2m\"\n }\n\t}\n}`\n\tconst testclusterJSON = `{\n \"name\": \"testcluster\",\n\t\t\"subClusters\": [\n\t\t\t{\n\t\t\t\t\"name\": \"sc1\",\n\t\t\t\t\"nodes\": \"host123,host124,host125\",\n\t\t\t\t\"processorType\": \"Intel Core i7-4770\",\n\t\t\t\t\"socketsPerNode\": 1,\n\t\t\t\t\"coresPerSocket\": 4,\n\t\t\t\t\"threadsPerCore\": 2,\n \"flopRateScalar\": {\n \"unit\": {\n \"prefix\": \"G\",\n \"base\": \"F/s\"\n },\n \"value\": 14\n },\n \"flopRateSimd\": {\n \"unit\": {\n \"prefix\": \"G\",\n \"base\": \"F/s\"\n },\n \"value\": 112\n },\n \"memoryBandwidth\": {\n \"unit\": {\n \"prefix\": \"G\",\n \"base\": \"B/s\"\n },\n \"value\": 24\n },\n \"numberOfNodes\": 70,\n\t\t\t\t\"topology\": {\n\t\t\t\t\t\"node\": [0, 1, 2, 3, 4, 5, 6, 7],\n\t\t\t\t\t\"socket\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n\t\t\t\t\t\"memoryDomain\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n\t\t\t\t\t\"die\": [[0, 1, 2, 3, 4, 5, 6, 7]],\n\t\t\t\t\t\"core\": [[0], [1], [2], [3], [4], [5], [6], [7]]\n\t\t\t\t}\n\t\t\t}\n\t\t],\n\t\t\"metricConfig\": [\n\t\t\t{\n\t\t\t\t\"name\": \"load_one\",\n\t\t\t \"unit\": { \"base\": \"\"},\n\t\t\t\t\"scope\": \"node\",\n\t\t\t\t\"timestep\": 60,\n \"aggregation\": \"avg\",\n\t\t\t\t\"peak\": 8,\n\t\t\t\t\"normal\": 0,\n\t\t\t\t\"caution\": 0,\n\t\t\t\t\"alert\": 0\n\t\t\t}\n\t\t]\n\t}`\n\n\tcclog.Init(\"info\", true)\n\ttmpdir := t.TempDir()\n\tjobarchive := filepath.Join(tmpdir, \"job-archive\")\n\tif err := os.Mkdir(jobarchive, 0o777); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tif err := os.WriteFile(filepath.Join(jobarchive, \"version.txt\"), fmt.Appendf(nil, \"%d\", 3), 0o666); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tif err := os.Mkdir(filepath.Join(jobarchive, \"testcluster\"), 0o777); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tif err := os.WriteFile(filepath.Join(jobarchive, \"testcluster\", \"cluster.json\"), []byte(testclusterJSON), 0o666); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tdbfilepath := filepath.Join(tmpdir, \"test.db\")\n\terr := repository.MigrateDB(dbfilepath)\n\tif err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tcfgFilePath := filepath.Join(tmpdir, \"config.json\")\n\tif err := os.WriteFile(cfgFilePath, []byte(testconfig), 0o666); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\tccconf.Init(cfgFilePath)\n\n\t// Load and check main configuration\n\tif cfg := ccconf.GetPackageConfig(\"main\"); cfg != nil {\n\t\tconfig.Init(cfg)\n\t} else {\n\t\tcclog.Abort(\"Main configuration must be present\")\n\t}\n\tarchiveCfg := fmt.Sprintf(\"{\\\"kind\\\": \\\"file\\\",\\\"path\\\": \\\"%s\\\"}\", jobarchive)\n\n\trepository.Connect(dbfilepath)\n\n\tif err := archive.Init(json.RawMessage(archiveCfg)); err != nil {\n\t\tt.Fatal(err)\n\t}\n\n\t// metricstore initialization removed - it's initialized via callback in tests\n\n\tarchiver.Start(repository.GetJobRepository(), context.Background())\n\n\tif cfg := ccconf.GetPackageConfig(\"auth\"); cfg != nil {\n\t\tauth.Init(&cfg)\n\t} else {\n\t\tcclog.Warn(\"Authentication disabled due to missing configuration\")\n\t\tauth.Init(nil)\n\t}\n\n\tgraph.Init()\n\n\treturn NewNatsAPI()\n}\n\nfunc cleanupNatsTest() {\n\tif err := archiver.Shutdown(5 * time.Second); err != nil {\n\t\tcclog.Warnf(\"Archiver shutdown timeout in tests: %v\", err)\n\t}\n}\n\nfunc TestNatsHandleStartJob(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\ttests := []struct {\n\t\tname string\n\t\tpayload string\n\t\texpectError bool\n\t\tvalidateJob func(t *testing.T, job *schema.Job)\n\t\tshouldFindJob bool\n\t}{\n\t\t{\n\t\t\tname: \"valid job start\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 1001,\n\t\t\t\t\"user\": \"testuser1\",\n\t\t\t\t\"project\": \"testproj1\",\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\"walltime\": 7200,\n\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\"smt\": 1,\n\t\t\t\t\"resources\": [\n\t\t\t\t\t{\n\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3, 4, 5, 6, 7]\n\t\t\t\t\t}\n\t\t\t\t],\n\t\t\t\t\"startTime\": 1234567890\n\t\t\t}`,\n\t\t\texpectError: false,\n\t\t\tshouldFindJob: true,\n\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n\t\t\t\tif job.JobID != 1001 {\n\t\t\t\t\tt.Errorf(\"expected JobID 1001, got %d\", job.JobID)\n\t\t\t\t}\n\t\t\t\tif job.User != \"testuser1\" {\n\t\t\t\t\tt.Errorf(\"expected user testuser1, got %s\", job.User)\n\t\t\t\t}\n\t\t\t\tif job.State != schema.JobStateRunning {\n\t\t\t\t\tt.Errorf(\"expected state running, got %s\", job.State)\n\t\t\t\t}\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\tname: \"invalid JSON\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": \"not a number\",\n\t\t\t\t\"user\": \"testuser2\"\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t\tshouldFindJob: false,\n\t\t},\n\t\t{\n\t\t\tname: \"missing required fields\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 1002\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t\tshouldFindJob: false,\n\t\t},\n\t\t{\n\t\t\tname: \"job with unknown fields (should fail due to DisallowUnknownFields)\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 1003,\n\t\t\t\t\"user\": \"testuser3\",\n\t\t\t\t\"project\": \"testproj3\",\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\"unknownField\": \"should cause error\",\n\t\t\t\t\"startTime\": 1234567900\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t\tshouldFindJob: false,\n\t\t},\n\t\t{\n\t\t\tname: \"job with tags\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 1004,\n\t\t\t\t\"user\": \"testuser4\",\n\t\t\t\t\"project\": \"testproj4\",\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\"smt\": 1,\n\t\t\t\t\"resources\": [\n\t\t\t\t\t{\n\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n\t\t\t\t\t}\n\t\t\t\t],\n\t\t\t\t\"tags\": [\n\t\t\t\t\t{\n\t\t\t\t\t\t\"type\": \"test\",\n\t\t\t\t\t\t\"name\": \"testtag\",\n\t\t\t\t\t\t\"scope\": \"testuser4\"\n\t\t\t\t\t}\n\t\t\t\t],\n\t\t\t\t\"startTime\": 1234567910\n\t\t\t}`,\n\t\t\texpectError: false,\n\t\t\tshouldFindJob: true,\n\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n\t\t\t\tif job.JobID != 1004 {\n\t\t\t\t\tt.Errorf(\"expected JobID 1004, got %d\", job.JobID)\n\t\t\t\t}\n\t\t\t},\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tnatsAPI.handleStartJob(tt.payload)\n\t\t\tnatsAPI.JobRepository.SyncJobs()\n\n\t\t\t// Allow some time for async operations\n\t\t\ttime.Sleep(100 * time.Millisecond)\n\n\t\t\tif tt.shouldFindJob {\n\t\t\t\t// Extract jobId from payload\n\t\t\t\tvar payloadMap map[string]any\n\t\t\t\tjson.Unmarshal([]byte(tt.payload), &payloadMap)\n\t\t\t\tjobID := int64(payloadMap[\"jobId\"].(float64))\n\t\t\t\tcluster := payloadMap[\"cluster\"].(string)\n\t\t\t\tstartTime := int64(payloadMap[\"startTime\"].(float64))\n\n\t\t\t\tjob, err := natsAPI.JobRepository.Find(&jobID, &cluster, &startTime)\n\t\t\t\tif err != nil {\n\t\t\t\t\tif !tt.expectError {\n\t\t\t\t\t\tt.Fatalf(\"expected to find job, but got error: %v\", err)\n\t\t\t\t\t}\n\t\t\t\t\treturn\n\t\t\t\t}\n\n\t\t\t\tif tt.validateJob != nil {\n\t\t\t\t\ttt.validateJob(t, job)\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleStopJob(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\t// First, create a running job\n\tstartPayload := `{\n\t\t\"jobId\": 2001,\n\t\t\"user\": \"testuser\",\n\t\t\"project\": \"testproj\",\n\t\t\"cluster\": \"testcluster\",\n\t\t\"partition\": \"main\",\n\t\t\"walltime\": 3600,\n\t\t\"numNodes\": 1,\n\t\t\"numHwthreads\": 8,\n\t\t\"numAcc\": 0,\n\t\t\"shared\": \"none\",\n\t\t\"monitoringStatus\": 1,\n\t\t\"smt\": 1,\n\t\t\"resources\": [\n\t\t\t{\n\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\"hwthreads\": [0, 1, 2, 3, 4, 5, 6, 7]\n\t\t\t}\n\t\t],\n\t\t\"startTime\": 1234567890\n\t}`\n\n\tnatsAPI.handleStartJob(startPayload)\n\tnatsAPI.JobRepository.SyncJobs()\n\ttime.Sleep(100 * time.Millisecond)\n\n\ttests := []struct {\n\t\tname string\n\t\tpayload string\n\t\texpectError bool\n\t\tvalidateJob func(t *testing.T, job *schema.Job)\n\t\tsetupJobFunc func() // Optional: create specific test job\n\t}{\n\t\t{\n\t\t\tname: \"valid job stop - completed\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 2001,\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"startTime\": 1234567890,\n\t\t\t\t\"jobState\": \"completed\",\n\t\t\t\t\"stopTime\": 1234571490\n\t\t\t}`,\n\t\t\texpectError: false,\n\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n\t\t\t\tif job.State != schema.JobStateCompleted {\n\t\t\t\t\tt.Errorf(\"expected state completed, got %s\", job.State)\n\t\t\t\t}\n\t\t\t\texpectedDuration := int32(1234571490 - 1234567890)\n\t\t\t\tif job.Duration != expectedDuration {\n\t\t\t\t\tt.Errorf(\"expected duration %d, got %d\", expectedDuration, job.Duration)\n\t\t\t\t}\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\tname: \"valid job stop - failed\",\n\t\t\tsetupJobFunc: func() {\n\t\t\t\tstartPayloadFailed := `{\n\t\t\t\t\t\"jobId\": 2002,\n\t\t\t\t\t\"user\": \"testuser\",\n\t\t\t\t\t\"project\": \"testproj\",\n\t\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\t\"smt\": 1,\n\t\t\t\t\t\"resources\": [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n\t\t\t\t\t\t}\n\t\t\t\t\t],\n\t\t\t\t\t\"startTime\": 1234567900\n\t\t\t\t}`\n\t\t\t\tnatsAPI.handleStartJob(startPayloadFailed)\n\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n\t\t\t\ttime.Sleep(100 * time.Millisecond)\n\t\t\t},\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 2002,\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"startTime\": 1234567900,\n\t\t\t\t\"jobState\": \"failed\",\n\t\t\t\t\"stopTime\": 1234569900\n\t\t\t}`,\n\t\t\texpectError: false,\n\t\t\tvalidateJob: func(t *testing.T, job *schema.Job) {\n\t\t\t\tif job.State != schema.JobStateFailed {\n\t\t\t\t\tt.Errorf(\"expected state failed, got %s\", job.State)\n\t\t\t\t}\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\tname: \"invalid JSON\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": \"not a number\"\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"missing jobId\",\n\t\t\tpayload: `{\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"jobState\": \"completed\",\n\t\t\t\t\"stopTime\": 1234571490\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"invalid job state\",\n\t\t\tsetupJobFunc: func() {\n\t\t\t\tstartPayloadInvalid := `{\n\t\t\t\t\t\"jobId\": 2003,\n\t\t\t\t\t\"user\": \"testuser\",\n\t\t\t\t\t\"project\": \"testproj\",\n\t\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\t\"smt\": 1,\n\t\t\t\t\t\"resources\": [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\t\"hwthreads\": [0, 1]\n\t\t\t\t\t\t}\n\t\t\t\t\t],\n\t\t\t\t\t\"startTime\": 1234567910\n\t\t\t\t}`\n\t\t\t\tnatsAPI.handleStartJob(startPayloadInvalid)\n\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n\t\t\t\ttime.Sleep(100 * time.Millisecond)\n\t\t\t},\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 2003,\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"startTime\": 1234567910,\n\t\t\t\t\"jobState\": \"invalid_state\",\n\t\t\t\t\"stopTime\": 1234571510\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"stopTime before startTime\",\n\t\t\tsetupJobFunc: func() {\n\t\t\t\tstartPayloadTime := `{\n\t\t\t\t\t\"jobId\": 2004,\n\t\t\t\t\t\"user\": \"testuser\",\n\t\t\t\t\t\"project\": \"testproj\",\n\t\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\t\"smt\": 1,\n\t\t\t\t\t\"resources\": [\n\t\t\t\t\t\t{\n\t\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\t\"hwthreads\": [0]\n\t\t\t\t\t\t}\n\t\t\t\t\t],\n\t\t\t\t\t\"startTime\": 1234567920\n\t\t\t\t}`\n\t\t\t\tnatsAPI.handleStartJob(startPayloadTime)\n\t\t\t\tnatsAPI.JobRepository.SyncJobs()\n\t\t\t\ttime.Sleep(100 * time.Millisecond)\n\t\t\t},\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 2004,\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"startTime\": 1234567920,\n\t\t\t\t\"jobState\": \"completed\",\n\t\t\t\t\"stopTime\": 1234567900\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"job not found\",\n\t\t\tpayload: `{\n\t\t\t\t\"jobId\": 99999,\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"startTime\": 1234567890,\n\t\t\t\t\"jobState\": \"completed\",\n\t\t\t\t\"stopTime\": 1234571490\n\t\t\t}`,\n\t\t\texpectError: true,\n\t\t},\n\t}\n\n\ttestData := schema.JobData{\n\t\t\"load_one\": map[schema.MetricScope]*schema.JobMetric{\n\t\t\tschema.MetricScopeNode: {\n\t\t\t\tUnit: schema.Unit{Base: \"load\"},\n\t\t\t\tTimestep: 60,\n\t\t\t\tSeries: []schema.Series{\n\t\t\t\t\t{\n\t\t\t\t\t\tHostname: \"host123\",\n\t\t\t\t\t\tStatistics: schema.MetricStatistics{Min: 0.1, Avg: 0.2, Max: 0.3},\n\t\t\t\t\t\tData: []schema.Float{0.1, 0.1, 0.1, 0.2, 0.2, 0.2, 0.3, 0.3, 0.3},\n\t\t\t\t\t},\n\t\t\t\t},\n\t\t\t},\n\t\t},\n\t}\n\n\tmetricstore.TestLoadDataCallback = func(job *schema.Job, metrics []string, scopes []schema.MetricScope, ctx context.Context, resolution int) (schema.JobData, error) {\n\t\treturn testData, nil\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tif tt.setupJobFunc != nil {\n\t\t\t\ttt.setupJobFunc()\n\t\t\t}\n\n\t\t\tnatsAPI.handleStopJob(tt.payload)\n\n\t\t\t// Allow some time for async operations\n\t\t\ttime.Sleep(100 * time.Millisecond)\n\n\t\t\tif !tt.expectError && tt.validateJob != nil {\n\t\t\t\t// Extract job details from payload\n\t\t\t\tvar payloadMap map[string]any\n\t\t\t\tjson.Unmarshal([]byte(tt.payload), &payloadMap)\n\t\t\t\tjobID := int64(payloadMap[\"jobId\"].(float64))\n\t\t\t\tcluster := payloadMap[\"cluster\"].(string)\n\n\t\t\t\tvar startTime *int64\n\t\t\t\tif st, ok := payloadMap[\"startTime\"]; ok {\n\t\t\t\t\tt := int64(st.(float64))\n\t\t\t\t\tstartTime = &t\n\t\t\t\t}\n\n\t\t\t\tjob, err := natsAPI.JobRepository.Find(&jobID, &cluster, startTime)\n\t\t\t\tif err != nil {\n\t\t\t\t\tt.Fatalf(\"expected to find job, but got error: %v\", err)\n\t\t\t\t}\n\n\t\t\t\ttt.validateJob(t, job)\n\t\t\t}\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleNodeState(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\ttests := []struct {\n\t\tname string\n\t\tdata []byte\n\t\texpectError bool\n\t\tvalidateFn func(t *testing.T)\n\t}{\n\t\t{\n\t\t\tname: \"valid node state update\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"states\\\":[\\\"allocated\\\"],\\\"cpusAllocated\\\":8,\\\"memoryAllocated\\\":16384,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":1}]}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t\tvalidateFn: func(t *testing.T) {\n\t\t\t\t// In a full test, we would verify the node state was updated in the database\n\t\t\t\t// For now, just ensure no error occurred\n\t\t\t},\n\t\t},\n\t\t{\n\t\t\tname: \"multiple nodes\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"host124\\\",\\\"states\\\":[\\\"allocated\\\"],\\\"cpusAllocated\\\":4,\\\"memoryAllocated\\\":8192,\\\"gpusAllocated\\\":1,\\\"jobsRunning\\\":1}]}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t},\n\t\t{\n\t\t\tname: \"invalid JSON in event field\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":\\\"not an array\\\"}\" 1234567890000000000`),\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"empty nodes array\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[]}\" 1234567890000000000`),\n\t\t\texpectError: false, // Empty array should not cause error\n\t\t},\n\t\t{\n\t\t\tname: \"invalid line protocol format\",\n\t\t\tdata: []byte(`invalid line protocol format`),\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"empty data\",\n\t\t\tdata: []byte(``),\n\t\t\texpectError: false, // Should be handled gracefully with warning\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tnatsAPI.handleNodeState(\"test.subject\", tt.data)\n\n\t\t\t// Allow some time for async operations\n\t\t\ttime.Sleep(50 * time.Millisecond)\n\n\t\t\tif tt.validateFn != nil {\n\t\t\t\ttt.validateFn(t)\n\t\t\t}\n\t\t})\n\t}\n}\n\nfunc TestNatsProcessJobEvent(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\tmsgStartJob, err := lp.NewMessage(\n\t\t\"job\",\n\t\tmap[string]string{\"function\": \"start_job\"},\n\t\tnil,\n\t\tmap[string]any{\n\t\t\t\"event\": `{\n\t\t\t\t\"jobId\": 3001,\n\t\t\t\t\"user\": \"testuser\",\n\t\t\t\t\"project\": \"testproj\",\n\t\t\t\t\"cluster\": \"testcluster\",\n\t\t\t\t\"partition\": \"main\",\n\t\t\t\t\"walltime\": 3600,\n\t\t\t\t\"numNodes\": 1,\n\t\t\t\t\"numHwthreads\": 8,\n\t\t\t\t\"numAcc\": 0,\n\t\t\t\t\"shared\": \"none\",\n\t\t\t\t\"monitoringStatus\": 1,\n\t\t\t\t\"smt\": 1,\n\t\t\t\t\"resources\": [\n\t\t\t\t\t{\n\t\t\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n\t\t\t\t\t}\n\t\t\t\t],\n\t\t\t\t\"startTime\": 1234567890\n\t\t\t}`,\n\t\t},\n\t\ttime.Now(),\n\t)\n\tif err != nil {\n\t\tt.Fatalf(\"failed to create test message: %v\", err)\n\t}\n\n\tmsgMissingTag, err := lp.NewMessage(\n\t\t\"job\",\n\t\tmap[string]string{},\n\t\tnil,\n\t\tmap[string]any{\n\t\t\t\"event\": `{}`,\n\t\t},\n\t\ttime.Now(),\n\t)\n\tif err != nil {\n\t\tt.Fatalf(\"failed to create test message: %v\", err)\n\t}\n\n\tmsgUnknownFunc, err := lp.NewMessage(\n\t\t\"job\",\n\t\tmap[string]string{\"function\": \"unknown_function\"},\n\t\tnil,\n\t\tmap[string]any{\n\t\t\t\"event\": `{}`,\n\t\t},\n\t\ttime.Now(),\n\t)\n\tif err != nil {\n\t\tt.Fatalf(\"failed to create test message: %v\", err)\n\t}\n\n\ttests := []struct {\n\t\tname string\n\t\tmessage lp.CCMessage\n\t\texpectError bool\n\t}{\n\t\t{\n\t\t\tname: \"start_job function\",\n\t\t\tmessage: msgStartJob,\n\t\t\texpectError: false,\n\t\t},\n\t\t{\n\t\t\tname: \"missing function tag\",\n\t\t\tmessage: msgMissingTag,\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"unknown function\",\n\t\t\tmessage: msgUnknownFunc,\n\t\t\texpectError: false,\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tnatsAPI.processJobEvent(tt.message)\n\t\t\ttime.Sleep(50 * time.Millisecond)\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleJobEvent(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\ttests := []struct {\n\t\tname string\n\t\tdata []byte\n\t\texpectError bool\n\t}{\n\t\t{\n\t\t\tname: \"valid influx line protocol\",\n\t\t\tdata: []byte(`job,function=start_job event=\"{\\\"jobId\\\":4001,\\\"user\\\":\\\"testuser\\\",\\\"project\\\":\\\"testproj\\\",\\\"cluster\\\":\\\"testcluster\\\",\\\"partition\\\":\\\"main\\\",\\\"walltime\\\":3600,\\\"numNodes\\\":1,\\\"numHwthreads\\\":8,\\\"numAcc\\\":0,\\\"shared\\\":\\\"none\\\",\\\"monitoringStatus\\\":1,\\\"smt\\\":1,\\\"resources\\\":[{\\\"hostname\\\":\\\"host123\\\",\\\"hwthreads\\\":[0,1,2,3]}],\\\"startTime\\\":1234567890}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t},\n\t\t{\n\t\t\tname: \"invalid influx line protocol\",\n\t\t\tdata: []byte(`invalid line protocol format`),\n\t\t\texpectError: true,\n\t\t},\n\t\t{\n\t\t\tname: \"empty data\",\n\t\t\tdata: []byte(``),\n\t\t\texpectError: false, // Decoder should handle empty input gracefully\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\t// HandleJobEvent doesn't return errors, it logs them\n\t\t\t// We're just ensuring it doesn't panic\n\t\t\tnatsAPI.handleJobEvent(\"test.subject\", tt.data)\n\t\t\ttime.Sleep(50 * time.Millisecond)\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleJobEventEdgeCases(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\ttests := []struct {\n\t\tname string\n\t\tdata []byte\n\t\texpectError bool\n\t\tdescription string\n\t}{\n\t\t{\n\t\t\tname: \"non-event message (metric data)\",\n\t\t\tdata: []byte(`job,function=start_job value=123.45 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should skip non-event messages gracefully\",\n\t\t},\n\t\t{\n\t\t\tname: \"wrong measurement name\",\n\t\t\tdata: []byte(`wrongmeasurement,function=start_job event=\"{}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should warn about unexpected measurement but not fail\",\n\t\t},\n\t\t{\n\t\t\tname: \"missing event field\",\n\t\t\tdata: []byte(`job,function=start_job other_field=\"value\" 1234567890000000000`),\n\t\t\texpectError: true,\n\t\t\tdescription: \"Should error when event field is missing\",\n\t\t},\n\t\t{\n\t\t\tname: \"multiple measurements in one message\",\n\t\t\tdata: []byte(\"job,function=start_job event=\\\"{}\\\" 1234567890000000000\\njob,function=stop_job event=\\\"{}\\\" 1234567890000000000\"),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should process multiple lines\",\n\t\t},\n\t\t{\n\t\t\tname: \"escaped quotes in JSON payload\",\n\t\t\tdata: []byte(`job,function=start_job event=\"{\\\"jobId\\\":6001,\\\"user\\\":\\\"test\\\\\\\"user\\\",\\\"cluster\\\":\\\"test\\\"}\" 1234567890000000000`),\n\t\t\texpectError: true,\n\t\t\tdescription: \"Should handle escaped quotes (though JSON parsing may fail)\",\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tnatsAPI.handleJobEvent(\"test.subject\", tt.data)\n\t\t\ttime.Sleep(50 * time.Millisecond)\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleNodeStateEdgeCases(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\ttests := []struct {\n\t\tname string\n\t\tdata []byte\n\t\texpectError bool\n\t\tdescription string\n\t}{\n\t\t{\n\t\t\tname: \"missing cluster field in JSON\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"nodes\\\":[]}\" 1234567890000000000`),\n\t\t\texpectError: true,\n\t\t\tdescription: \"Should fail when cluster is missing\",\n\t\t},\n\t\t{\n\t\t\tname: \"malformed JSON with unescaped quotes\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"test\"cluster\\\",\\\"nodes\\\":[]}\" 1234567890000000000`),\n\t\t\texpectError: true,\n\t\t\tdescription: \"Should fail on malformed JSON\",\n\t\t},\n\t\t{\n\t\t\tname: \"unicode characters in hostname\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"host-ñ123\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0}]}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should handle unicode characters\",\n\t\t},\n\t\t{\n\t\t\tname: \"very large node count\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node1\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"node2\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0},{\\\"hostname\\\":\\\"node3\\\",\\\"states\\\":[\\\"idle\\\"],\\\"cpusAllocated\\\":0,\\\"memoryAllocated\\\":0,\\\"gpusAllocated\\\":0,\\\"jobsRunning\\\":0}]}\" 1234567890000000000`),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should handle multiple nodes efficiently\",\n\t\t},\n\t\t{\n\t\t\tname: \"timestamp in past\",\n\t\t\tdata: []byte(`nodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[]}\" 1000000000000000000`),\n\t\t\texpectError: false,\n\t\t\tdescription: \"Should accept any valid timestamp\",\n\t\t},\n\t}\n\n\tfor _, tt := range tests {\n\t\tt.Run(tt.name, func(t *testing.T) {\n\t\t\tnatsAPI.handleNodeState(\"test.subject\", tt.data)\n\t\t\ttime.Sleep(50 * time.Millisecond)\n\t\t})\n\t}\n}\n\nfunc TestNatsHandleStartJobDuplicatePrevention(t *testing.T) {\n\tnatsAPI := setupNatsTest(t)\n\tt.Cleanup(cleanupNatsTest)\n\n\t// Start a job\n\tpayload := `{\n\t\t\"jobId\": 5001,\n\t\t\"user\": \"testuser\",\n\t\t\"project\": \"testproj\",\n\t\t\"cluster\": \"testcluster\",\n\t\t\"partition\": \"main\",\n\t\t\"walltime\": 3600,\n\t\t\"numNodes\": 1,\n\t\t\"numHwthreads\": 8,\n\t\t\"numAcc\": 0,\n\t\t\"shared\": \"none\",\n\t\t\"monitoringStatus\": 1,\n\t\t\"smt\": 1,\n\t\t\"resources\": [\n\t\t\t{\n\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n\t\t\t}\n\t\t],\n\t\t\"startTime\": 1234567890\n\t}`\n\n\tnatsAPI.handleStartJob(payload)\n\tnatsAPI.JobRepository.SyncJobs()\n\ttime.Sleep(100 * time.Millisecond)\n\n\t// Try to start the same job again (within 24 hours)\n\tduplicatePayload := `{\n\t\t\"jobId\": 5001,\n\t\t\"user\": \"testuser\",\n\t\t\"project\": \"testproj\",\n\t\t\"cluster\": \"testcluster\",\n\t\t\"partition\": \"main\",\n\t\t\"walltime\": 3600,\n\t\t\"numNodes\": 1,\n\t\t\"numHwthreads\": 8,\n\t\t\"numAcc\": 0,\n\t\t\"shared\": \"none\",\n\t\t\"monitoringStatus\": 1,\n\t\t\"smt\": 1,\n\t\t\"resources\": [\n\t\t\t{\n\t\t\t\t\"hostname\": \"host123\",\n\t\t\t\t\"hwthreads\": [0, 1, 2, 3]\n\t\t\t}\n\t\t],\n\t\t\"startTime\": 1234567900\n\t}`\n\n\tnatsAPI.handleStartJob(duplicatePayload)\n\tnatsAPI.JobRepository.SyncJobs()\n\ttime.Sleep(100 * time.Millisecond)\n\n\t// Verify only one job exists\n\tjobID := int64(5001)\n\tcluster := \"testcluster\"\n\tjobs, err := natsAPI.JobRepository.FindAll(&jobID, &cluster, nil)\n\tif err != nil && err != sql.ErrNoRows {\n\t\tt.Fatalf(\"unexpected error: %v\", err)\n\t}\n\n\tif len(jobs) != 1 {\n\t\tt.Errorf(\"expected 1 job, got %d\", len(jobs))\n\t}\n}\n","numLines":948,"startLine":1,"totalLines":948}},"sourceToolAssistantUUID":"7aafecec-1756-456c-9a0e-de007dab36ea","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"6bb94bed-c812-492c-b9db-832170db7863","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_014Ku4xFugNF3T6G3feh8a9R","type":"message","role":"assistant","content":[{"type":"thinking","thinking":"","signature":"EowCCkYICxgCKkC1gTm7R4cI35UUmnKkYZ7kgK1hlPHIh7sRiZyidRfDMlCwoOWKPOsf7f62GXRSn4EbUiJTqPksf/SvlRJ95p9FEgw2U5To0NXLkahE4lEaDEoRgzYp9ebokDFV5SIwmC7JrF3zLtcu00yH5dQhdLi80YcB2hmW980MxtpKFbQAYvyqkL8xxk8Qsh17mfUNKnTvp0ACeJA4m3+Ol55XPFCzpOCuRx0g7k4cyfEJKMk86xM3j1++L4DzLN6+Fpn54KH+X2O3kMIog7R0SUSjb0cDCGBIzMgfbEIozYraemCN7O/5CiSlKSZmthNqys1SGtCkXOtxqdaS0BxLgWYhHISKYeqLWhgB"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":20996,"cache_read_input_tokens":18858,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":20996},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6dZD7uqCcUD6jUgoFwv","type":"assistant","uuid":"1580c70d-2537-403c-a1dd-634c71724039","timestamp":"2026-03-16T10:51:05.612Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"1580c70d-2537-403c-a1dd-634c71724039","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_014Ku4xFugNF3T6G3feh8a9R","type":"message","role":"assistant","content":[{"type":"text","text":"Let me check the NATS client interface to understand available methods."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":20996,"cache_read_input_tokens":18858,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":20996},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6dZD7uqCcUD6jUgoFwv","type":"assistant","uuid":"c8b8ff06-e333-4943-b2cf-d034e8f1e900","timestamp":"2026-03-16T10:51:06.050Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"41f337b5-0a3d-4f5c-9318-3aef0cdafa19","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01K36eSVrJ51aPicwHJM6Vy1","type":"tool_result","content":" 140→\n 141→\tcclog.Infof(\"NATS connected to %s\", cfg.Address)\n 142→\n 143→\treturn &Client{\n 144→\t\tconn: nc,\n 145→\t\tsubscriptions: make([]*nats.Subscription, 0),\n 146→\t}, nil\n 147→}\n 148→\n 149→// Subscribe registers a handler for messages on the given subject.\n 150→func (c *Client) Subscribe(subject string, handler MessageHandler) error {\n 151→\tc.mu.Lock()\n 152→\tdefer c.mu.Unlock()\n 153→\n 154→\tsub, err := c.conn.Subscribe(subject, func(msg *nats.Msg) {\n 155→\t\thandler(msg.Subject, msg.Data)\n 156→\t})\n 157→\tif err != nil {\n 158→\t\treturn fmt.Errorf(\"NATS subscribe to '%s' failed: %w\", subject, err)\n 159→\t}\n 160→\n 161→\tc.subscriptions = append(c.subscriptions, sub)\n 162→\tcclog.Infof(\"NATS subscribed to '%s'\", subject)\n 163→\treturn nil\n 164→}\n 165→\n 166→// SubscribeQueue registers a handler with queue group for load-balanced message processing.\n 167→func (c *Client) SubscribeQueue(subject, queue string, handler MessageHandler) error {\n 168→\tc.mu.Lock()\n 169→\tdefer c.mu.Unlock()\n 170→\n 171→\tsub, err := c.conn.QueueSubscribe(subject, queue, func(msg *nats.Msg) {\n 172→\t\thandler(msg.Subject, msg.Data)\n 173→\t})\n 174→\tif err != nil {\n 175→\t\treturn fmt.Errorf(\"NATS queue subscribe to '%s' (queue: %s) failed: %w\", subject, queue, err)\n 176→\t}\n 177→\n 178→\tc.subscriptions = append(c.subscriptions, sub)\n 179→\tcclog.Infof(\"NATS queue subscribed to '%s' (queue: %s)\", subject, queue)\n 180→\treturn nil\n 181→}\n 182→\n 183→// SubscribeChan subscribes to a subject and delivers messages to the provided channel.\n 184→func (c *Client) SubscribeChan(subject string, ch chan *nats.Msg) error {\n 185→\tc.mu.Lock()\n 186→\tdefer c.mu.Unlock()\n 187→\n 188→\tsub, err := c.conn.ChanSubscribe(subject, ch)\n 189→\tif err != nil {\n 190→\t\treturn fmt.Errorf(\"NATS chan subscribe to '%s' failed: %w\", subject, err)\n 191→\t}\n 192→\n 193→\tc.subscriptions = append(c.subscriptions, sub)\n 194→\tcclog.Infof(\"NATS chan subscribed to '%s'\", subject)\n 195→\treturn nil\n 196→}\n 197→\n 198→// Publish sends data to the specified subject.\n 199→func (c *Client) Publish(subject string, data []byte) error {\n 200→\tif err := c.conn.Publish(subject, data); err != nil {\n 201→\t\treturn fmt.Errorf(\"NATS publish to '%s' failed: %w\", subject, err)\n 202→\t}\n 203→\treturn nil\n 204→}\n 205→\n 206→// Request sends a request and waits for a response with the given context timeout.\n 207→func (c *Client) Request(subject string, data []byte, timeout context.Context) ([]byte, error) {\n 208→\tmsg, err := c.conn.RequestWithContext(timeout, subject, data)\n 209→\tif err != nil {\n 210→\t\treturn nil, fmt.Errorf(\"NATS request to '%s' failed: %w\", subject, err)\n 211→\t}\n 212→\treturn msg.Data, nil\n 213→}\n 214→\n 215→// Flush flushes the connection buffer to ensure all published messages are sent.\n 216→func (c *Client) Flush() error {\n 217→\treturn c.conn.Flush()\n 218→}\n 219→"}]},"uuid":"f5183a56-06b8-4e59-895a-3506598a7a9b","timestamp":"2026-03-16T10:51:10.962Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-lib/nats/client.go","content":"\n\tcclog.Infof(\"NATS connected to %s\", cfg.Address)\n\n\treturn &Client{\n\t\tconn: nc,\n\t\tsubscriptions: make([]*nats.Subscription, 0),\n\t}, nil\n}\n\n// Subscribe registers a handler for messages on the given subject.\nfunc (c *Client) Subscribe(subject string, handler MessageHandler) error {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tsub, err := c.conn.Subscribe(subject, func(msg *nats.Msg) {\n\t\thandler(msg.Subject, msg.Data)\n\t})\n\tif err != nil {\n\t\treturn fmt.Errorf(\"NATS subscribe to '%s' failed: %w\", subject, err)\n\t}\n\n\tc.subscriptions = append(c.subscriptions, sub)\n\tcclog.Infof(\"NATS subscribed to '%s'\", subject)\n\treturn nil\n}\n\n// SubscribeQueue registers a handler with queue group for load-balanced message processing.\nfunc (c *Client) SubscribeQueue(subject, queue string, handler MessageHandler) error {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tsub, err := c.conn.QueueSubscribe(subject, queue, func(msg *nats.Msg) {\n\t\thandler(msg.Subject, msg.Data)\n\t})\n\tif err != nil {\n\t\treturn fmt.Errorf(\"NATS queue subscribe to '%s' (queue: %s) failed: %w\", subject, queue, err)\n\t}\n\n\tc.subscriptions = append(c.subscriptions, sub)\n\tcclog.Infof(\"NATS queue subscribed to '%s' (queue: %s)\", subject, queue)\n\treturn nil\n}\n\n// SubscribeChan subscribes to a subject and delivers messages to the provided channel.\nfunc (c *Client) SubscribeChan(subject string, ch chan *nats.Msg) error {\n\tc.mu.Lock()\n\tdefer c.mu.Unlock()\n\n\tsub, err := c.conn.ChanSubscribe(subject, ch)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"NATS chan subscribe to '%s' failed: %w\", subject, err)\n\t}\n\n\tc.subscriptions = append(c.subscriptions, sub)\n\tcclog.Infof(\"NATS chan subscribed to '%s'\", subject)\n\treturn nil\n}\n\n// Publish sends data to the specified subject.\nfunc (c *Client) Publish(subject string, data []byte) error {\n\tif err := c.conn.Publish(subject, data); err != nil {\n\t\treturn fmt.Errorf(\"NATS publish to '%s' failed: %w\", subject, err)\n\t}\n\treturn nil\n}\n\n// Request sends a request and waits for a response with the given context timeout.\nfunc (c *Client) Request(subject string, data []byte, timeout context.Context) ([]byte, error) {\n\tmsg, err := c.conn.RequestWithContext(timeout, subject, data)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"NATS request to '%s' failed: %w\", subject, err)\n\t}\n\treturn msg.Data, nil\n}\n\n// Flush flushes the connection buffer to ensure all published messages are sent.\nfunc (c *Client) Flush() error {\n\treturn c.conn.Flush()\n}\n","numLines":80,"startLine":140,"totalLines":247}},"sourceToolAssistantUUID":"41f337b5-0a3d-4f5c-9318-3aef0cdafa19","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"6d5ab45c-c963-4fba-bf65-792e3bcf41e9","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01WjCFk2uJFWbXoexkU754Vb","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/config/config.go has been updated successfully."}]},"uuid":"ef194566-e426-4d69-89c4-6697e6df2705","timestamp":"2026-03-16T10:51:32.761Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/config/config.go","oldString":"type NATSConfig struct {\n\tSubjectJobEvent string `json:\"subject-job-event\"`\n\tSubjectNodeState string `json:\"subject-node-state\"`\n}","newString":"type NATSConfig struct {\n\tSubjectJobEvent string `json:\"subject-job-event\"`\n\tSubjectNodeState string `json:\"subject-node-state\"`\n\tQueueGroup string `json:\"queue-group\"`\n\tJobConcurrency int `json:\"job-concurrency\"`\n\tNodeConcurrency int `json:\"node-concurrency\"`\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\n// Package config implements the program configuration data structures, validation and parsing\npackage config\n\nimport (\n\t\"bytes\"\n\t\"encoding/json\"\n\t\"time\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/resampler\"\n)\n\ntype ProgramConfig struct {\n\t// Address where the http (or https) server will listen on (for example: 'localhost:80').\n\tAddr string `json:\"addr\"`\n\n\t// Addresses from which secured admin API endpoints can be reached, can be wildcard \"*\"\n\tAPIAllowedIPs []string `json:\"api-allowed-ips\"`\n\n\tAPISubjects *NATSConfig `json:\"api-subjects\"`\n\n\t// Drop root permissions once .env was read and the port was taken.\n\tUser string `json:\"user\"`\n\tGroup string `json:\"group\"`\n\n\t// Disable authentication (for everything: API, Web-UI, ...)\n\tDisableAuthentication bool `json:\"disable-authentication\"`\n\n\t// If `embed-static-files` is true (default), the frontend files are directly\n\t// embeded into the go binary and expected to be in web/frontend. Only if\n\t// it is false the files in `static-files` are served instead.\n\tEmbedStaticFiles bool `json:\"embed-static-files\"`\n\tStaticFiles string `json:\"static-files\"`\n\n\t// Path to SQLite database file\n\tDB string `json:\"db\"`\n\n\tEnableJobTaggers bool `json:\"enable-job-taggers\"`\n\n\t// Validate json input against schema\n\tValidate bool `json:\"validate\"`\n\n\t// If 0 or empty, the session does not expire!\n\tSessionMaxAge string `json:\"session-max-age\"`\n\n\t// If both those options are not empty, use HTTPS using those certificates.\n\tHTTPSCertFile string `json:\"https-cert-file\"`\n\tHTTPSKeyFile string `json:\"https-key-file\"`\n\n\t// If not the empty string and `addr` does not end in \":80\",\n\t// redirect every request incoming at port 80 to that url.\n\tRedirectHTTPTo string `json:\"redirect-http-to\"`\n\n\t// Where to store MachineState files\n\tMachineStateDir string `json:\"machine-state-dir\"`\n\n\t// If not zero, automatically mark jobs as stopped running X seconds longer than their walltime.\n\tStopJobsExceedingWalltime int `json:\"stop-jobs-exceeding-walltime\"`\n\n\t// Defines time X in seconds in which jobs are considered to be \"short\" and will be filtered in specific views.\n\tShortRunningJobsDuration int `json:\"short-running-jobs-duration\"`\n\n\t// Energy Mix CO2 Emission Constant [g/kWh]\n\t// If entered, displays estimated CO2 emission for job based on jobs totalEnergy\n\tEmissionConstant int `json:\"emission-constant\"`\n\n\t// If exists, will enable dynamic zoom in frontend metric plots using the configured values\n\tEnableResampling *ResampleConfig `json:\"resampling\"`\n\n\t// Systemd unit name for log viewer (default: \"clustercockpit\")\n\tSystemdUnit string `json:\"systemd-unit\"`\n\n\t// Node state retention configuration\n\tNodeStateRetention *NodeStateRetention `json:\"nodestate-retention\"`\n\n\t// Database tuning configuration\n\tDbConfig *DbConfig `json:\"db-config\"`\n}\n\ntype DbConfig struct {\n\tCacheSizeMB int `json:\"cache-size-mb\"`\n\tSoftHeapLimitMB int `json:\"soft-heap-limit-mb\"`\n\tMaxOpenConnections int `json:\"max-open-connections\"`\n\tMaxIdleConnections int `json:\"max-idle-connections\"`\n\tConnectionMaxIdleTimeMins int `json:\"max-idle-time-minutes\"`\n\tBusyTimeoutMs int `json:\"busy-timeout-ms\"`\n}\n\ntype NodeStateRetention struct {\n\tPolicy string `json:\"policy\"` // \"delete\" or \"move\"\n\tAge int `json:\"age\"` // hours, default 24\n\tTargetKind string `json:\"target-kind\"` // \"file\" or \"s3\"\n\tTargetPath string `json:\"target-path\"`\n\tTargetEndpoint string `json:\"target-endpoint\"`\n\tTargetBucket string `json:\"target-bucket\"`\n\tTargetAccessKey string `json:\"target-access-key\"`\n\tTargetSecretKey string `json:\"target-secret-key\"`\n\tTargetRegion string `json:\"target-region\"`\n\tTargetUsePathStyle bool `json:\"target-use-path-style\"`\n\tMaxFileSizeMB int `json:\"max-file-size-mb\"`\n}\n\ntype ResampleConfig struct {\n\t// Minimum number of points to trigger resampling of data\n\tMinimumPoints int `json:\"minimum-points\"`\n\t// Array of resampling target resolutions, in seconds; Example: [600,300,60]\n\tResolutions []int `json:\"resolutions\"`\n\t// Trigger next zoom level at less than this many visible datapoints\n\tTrigger int `json:\"trigger\"`\n}\n\ntype NATSConfig struct {\n\tSubjectJobEvent string `json:\"subject-job-event\"`\n\tSubjectNodeState string `json:\"subject-node-state\"`\n}\n\ntype IntRange struct {\n\tFrom int `json:\"from\"`\n\tTo int `json:\"to\"`\n}\n\ntype TimeRange struct {\n\tFrom *time.Time `json:\"from\"`\n\tTo *time.Time `json:\"to\"`\n\tRange string `json:\"range,omitempty\"`\n}\n\ntype FilterRanges struct {\n\tDuration *IntRange `json:\"duration\"`\n\tNumNodes *IntRange `json:\"num-nodes\"`\n\tStartTime *TimeRange `json:\"start-time\"`\n}\n\nvar Keys ProgramConfig = ProgramConfig{\n\tAddr: \"localhost:8080\",\n\tEmbedStaticFiles: true,\n\tDB: \"./var/job.db\",\n\tSessionMaxAge: \"168h\",\n\tStopJobsExceedingWalltime: 0,\n\tShortRunningJobsDuration: 5 * 60,\n}\n\nfunc Init(mainConfig json.RawMessage) {\n\tValidate(configSchema, mainConfig)\n\tdec := json.NewDecoder(bytes.NewReader(mainConfig))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&Keys); err != nil {\n\t\tcclog.Abortf(\"Config Init: Could not decode config file '%s'.\\nError: %s\\n\", mainConfig, err.Error())\n\t}\n\n\tif Keys.EnableResampling != nil && Keys.EnableResampling.MinimumPoints > 0 {\n\t\tresampler.SetMinimumRequiredPoints(Keys.EnableResampling.MinimumPoints)\n\t}\n}\n","structuredPatch":[{"oldStart":117,"oldLines":6,"newStart":117,"newLines":9,"lines":[" type NATSConfig struct {"," SubjectJobEvent string `json:\"subject-job-event\"`"," SubjectNodeState string `json:\"subject-node-state\"`","+ QueueGroup string `json:\"queue-group\"`","+ JobConcurrency int `json:\"job-concurrency\"`","+ NodeConcurrency int `json:\"node-concurrency\"`"," }"," "," type IntRange struct {"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"6d5ab45c-c963-4fba-bf65-792e3bcf41e9","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"a1473d05-fd96-4b89-9f5c-dad4a465bbd0","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01SURCvRUDx3SniC21NSWoe5","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01XJVvk4PRR1mymGqZPrVw9G","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"// 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}","new_string":"// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); 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}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1065,"cache_read_input_tokens":41489,"output_tokens":2325,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":1065,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6dbcGznoB4kQ6diX9k7","type":"assistant","uuid":"de75183c-21f3-40c2-a564-e42cd923e69c","timestamp":"2026-03-16T10:52:03.248Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"de75183c-21f3-40c2-a564-e42cd923e69c","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XJVvk4PRR1mymGqZPrVw9G","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"6a0f4199-93ac-48c4-b704-1f59f2a19e33","timestamp":"2026-03-16T10:52:03.259Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"// 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}","newString":"// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); 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}","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\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)\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":24,"oldLines":6,"newStart":24,"newLines":12,"lines":[" influx \"github.com/ClusterCockpit/cc-line-protocol/v2/lineprotocol\""," )"," ","+// natsMessage wraps a raw NATS message with its subject for channel-based processing.","+type natsMessage struct {","+ subject string","+ data []byte","+}","+"," // NatsAPI provides NATS subscription-based handlers for Job and Node operations."," // It mirrors the functionality of the REST API but uses NATS messaging with"," // InfluxDB line protocol as the message format."]},{"oldStart":64,"oldLines":23,"newStart":70,"newLines":68,"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{}","+ // jobCh receives job event messages for processing by worker goroutines.","+ jobCh chan natsMessage","+ // nodeCh receives node state messages for processing by worker goroutines.","+ nodeCh chan natsMessage"," }"," ","-// NewNatsAPI creates a new NatsAPI instance with default dependencies.","+// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.","+// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2)."," func NewNatsAPI() *NatsAPI {","- return &NatsAPI{","+ jobConc := 8","+ nodeConc := 2","+","+ if s := config.Keys.APISubjects; s != nil {","+ if s.JobConcurrency > 0 {","+ jobConc = s.JobConcurrency","+ }","+ if s.NodeConcurrency > 0 {","+ nodeConc = s.NodeConcurrency","+ }","+ }","+","+ api := &NatsAPI{"," JobRepository: repository.GetJobRepository(),","- jobSem: make(chan struct{}, 8),","- nodeSem: make(chan struct{}, 2),","+ jobCh: make(chan natsMessage, jobConc),","+ nodeCh: make(chan natsMessage, nodeConc),"," }","+","+ // Start worker goroutines","+ for range jobConc {","+ go api.jobWorker()","+ }","+ for range nodeConc {","+ go api.nodeWorker()","+ }","+","+ return api"," }"," ","+// jobWorker processes job event messages from the job channel.","+func (api *NatsAPI) jobWorker() {","+ for msg := range api.jobCh {","+ api.handleJobEvent(msg.subject, msg.data)","+ }","+}","+","+// nodeWorker processes node state messages from the node channel.","+func (api *NatsAPI) nodeWorker() {","+ for msg := range api.nodeCh {","+ api.handleNodeState(msg.subject, msg.data)","+ }","+}","+","+// subscribe registers a NATS subscription using queue groups when configured.","+func subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {","+ if queueGroup != \"\" {","+ return client.SubscribeQueue(subject, queueGroup, handler)","+ }","+ return client.Subscribe(subject, handler)","+}","+"," // StartSubscriptions registers all NATS subscriptions for Job and Node APIs.","+// Messages are delivered to buffered channels and processed by worker goroutines."," // Returns an error if the NATS client is not available or subscription fails."," func (api *NatsAPI) StartSubscriptions() error {"," client := nats.GetClient()"]},{"oldStart":90,"oldLines":14,"newStart":141,"newLines":18,"lines":[" }"," "," if config.Keys.APISubjects != nil {","-"," s := config.Keys.APISubjects","+ qg := s.QueueGroup"," ","- if err := client.Subscribe(s.SubjectJobEvent, api.handleJobEvent); err != nil {","+ if err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {","+ api.jobCh <- natsMessage{subject: subject, data: data}","+ }); err != nil {"," return err"," }"," ","- if err := client.Subscribe(s.SubjectNodeState, api.handleNodeState); err != nil {","+ if err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {","+ api.nodeCh <- natsMessage{subject: subject, data: data}","+ }); err != nil {"," return err"," }"," "]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"de75183c-21f3-40c2-a564-e42cd923e69c","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"d076f7de-a2eb-451a-b519-271beb967c87","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_013qebPMzq839jjYQHPn9frr","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01FTB8RJkgj5uvTYTyaHC9WN","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\tapi.jobSem <- struct{}{}\n\tdefer func() { <-api.jobSem }()\n\n\tif len(data) == 0 {","new_string":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":2499,"cache_read_input_tokens":42554,"output_tokens":251,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":2499,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6ddrixsjYUrja2AL1p1","type":"assistant","uuid":"731be51b-0e04-4ffa-9554-885194755b23","timestamp":"2026-03-16T10:52:08.720Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"731be51b-0e04-4ffa-9554-885194755b23","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01FTB8RJkgj5uvTYTyaHC9WN","toolUseID":"toolu_01FTB8RJkgj5uvTYTyaHC9WN","timestamp":"2026-03-16T10:52:08.749Z","uuid":"dcf1b7d2-92bb-4d7d-a3db-3de74852c477","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"731be51b-0e04-4ffa-9554-885194755b23","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01FTB8RJkgj5uvTYTyaHC9WN","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"91275934-07c6-47a6-b489-d15110e2c13d","timestamp":"2026-03-16T10:52:08.748Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tapi.jobSem <- struct{}{}\n\tdefer func() { <-api.jobSem }()\n\n\tif len(data) == 0 {","newString":"func (api *NatsAPI) handleJobEvent(subject string, data []byte) {\n\tif len(data) == 0 {","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// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); 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\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)\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":199,"oldLines":9,"newStart":199,"newLines":6,"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":"731be51b-0e04-4ffa-9554-885194755b23","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"97f27a0d-1dff-4bb4-8f05-fd9dfca2df9c","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_013XsctVBEXNmrxRbABcbWBr","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"efad14ac-eb60-4b03-9785-72880690b5a2","timestamp":"2026-03-16T10:52:12.808Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tapi.nodeSem <- struct{}{}\n\tdefer func() { <-api.nodeSem }()\n\n\tif len(data) == 0 {","newString":"func (api *NatsAPI) handleNodeState(subject string, data []byte) {\n\tif len(data) == 0 {","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// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); 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\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)\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":439,"oldLines":9,"newStart":439,"newLines":6,"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":"97f27a0d-1dff-4bb4-8f05-fd9dfca2df9c","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"efad14ac-eb60-4b03-9785-72880690b5a2","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01SHArEchGqgUh3sf5xXJV7r","type":"message","role":"assistant","content":[{"type":"text","text":"There are still references to the old semaphore fields. Let me check what's on those lines."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":395,"cache_read_input_tokens":45566,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":395},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6deZXdqQn6dAo6twbxg","type":"assistant","uuid":"12f3c230-7929-42ce-b594-11ae957e9cb5","timestamp":"2026-03-16T10:52:16.311Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"12f3c230-7929-42ce-b594-11ae957e9cb5","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01SHArEchGqgUh3sf5xXJV7r","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RgFDCPndryefTQNWEvUXLj","name":"Grep","input":{"pattern":"jobSem|nodeSem","path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","output_mode":"content"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":395,"cache_read_input_tokens":45566,"output_tokens":141,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":395,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6deZXdqQn6dAo6twbxg","type":"assistant","uuid":"c512a431-1089-4cf1-b931-0b3fe24a94b9","timestamp":"2026-03-16T10:52:17.310Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"c512a431-1089-4cf1-b931-0b3fe24a94b9","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Grep","command":"callback"},"parentToolUseID":"toolu_01RgFDCPndryefTQNWEvUXLj","toolUseID":"toolu_01RgFDCPndryefTQNWEvUXLj","timestamp":"2026-03-16T10:52:17.348Z","uuid":"73f114ea-0a53-4a04-8218-b17fbb00fc1b","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"c512a431-1089-4cf1-b931-0b3fe24a94b9","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RgFDCPndryefTQNWEvUXLj","type":"tool_result","content":"No matches found"}]},"uuid":"81fe2583-ee69-4941-b553-9d40baf30d6a","timestamp":"2026-03-16T10:52:17.348Z","toolUseResult":{"mode":"content","numFiles":0,"filenames":[],"content":"","numLines":0},"sourceToolAssistantUUID":"c512a431-1089-4cf1-b931-0b3fe24a94b9","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"81fe2583-ee69-4941-b553-9d40baf30d6a","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01SmKB5Ax5a51u3UH2rJLACo","type":"message","role":"assistant","content":[{"type":"text","text":"Good, no more references. The diagnostics must have been stale. Now let me build and test."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":156,"cache_read_input_tokens":45961,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":156},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6deuH2aGRZmKeCX6wZ6","type":"assistant","uuid":"983c2297-43d2-4f69-8b8a-7e93786e97a6","timestamp":"2026-03-16T10:52:22.080Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"469752c1-20ca-478a-9fa8-f149e4051664","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01SmKB5Ax5a51u3UH2rJLACo","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01RsbegDBYHRdDwEVWjJ5pgY","name":"Bash","input":{"command":"go vet ./internal/api/...","description":"Vet api package"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":156,"cache_read_input_tokens":45961,"output_tokens":197,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":156,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6deuH2aGRZmKeCX6wZ6","type":"assistant","uuid":"d9d761c0-e71e-4202-8cce-f8fa69fc6e35","timestamp":"2026-03-16T10:52:23.409Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"d9d761c0-e71e-4202-8cce-f8fa69fc6e35","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RsbegDBYHRdDwEVWjJ5pgY","type":"tool_result","content":"(Bash completed with no output)","is_error":false}]},"uuid":"4a1d1dd6-44c0-4a53-b9e9-d2f3664d4342","timestamp":"2026-03-16T10:52:30.244Z","toolUseResult":{"stdout":"","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"d9d761c0-e71e-4202-8cce-f8fa69fc6e35","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"4a1d1dd6-44c0-4a53-b9e9-d2f3664d4342","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_017cFq5EM7HSBNUvdw3urqPP","type":"message","role":"assistant","content":[{"type":"text","text":"Build and vet pass. Now run the tests."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":232,"cache_read_input_tokens":46117,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":232},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6dfr2rCiUfnYzGM5Ztk","type":"assistant","uuid":"c17ed003-df36-4cc7-a67b-16b90f14da78","timestamp":"2026-03-16T10:52:33.993Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"c17ed003-df36-4cc7-a67b-16b90f14da78","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_017cFq5EM7HSBNUvdw3urqPP","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01DXStoFoEeYbw148tUCgNLu","name":"Bash","input":{"command":"go test ./internal/api/... -v -count=1 -timeout 120s 2>&1 | tail -80","description":"Run NATS API tests","timeout":180000},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":232,"cache_read_input_tokens":46117,"output_tokens":151,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":232,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6dfr2rCiUfnYzGM5Ztk","type":"assistant","uuid":"10010e78-c6cf-4585-9eee-1cfad80e73a6","timestamp":"2026-03-16T10:52:35.044Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"10010e78-c6cf-4585-9eee-1cfad80e73a6","isSidechain":false,"promptId":"66979d8d-658a-487e-82d6-dc570b03867c","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DXStoFoEeYbw148tUCgNLu","type":"tool_result","content":"<6>[INFO] 2026/03/16 11:52:39 archiveWorker.go:238: All archive jobs completed successfully\n<6>[INFO] 2026/03/16 11:52:39 archiveWorker.go:121: Archive channel closed, worker exiting\n--- PASS: TestNatsHandleNodeStateEdgeCases (0.30s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/missing_cluster_field_in_JSON (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/malformed_JSON_with_unescaped_quotes (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/unicode_characters_in_hostname (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/very_large_node_count (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/timestamp_in_past (0.05s)\n=== RUN TestNatsHandleStartJobDuplicatePrevention\n<6>[INFO] 2026/03/16 11:52:39 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:39 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:39 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:39 nats.go:297: NATS: new job (id: 1): cluster=testcluster, jobId=5001, user=testuser, startTime=1234567890\n<3>[ERROR] 2026/03/16 11:52:40 /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go:269: NATS start job: job with jobId 5001, cluster testcluster already exists (dbid: 113234315163880)\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:238: All archive jobs completed successfully\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:121: Archive channel closed, worker exiting\n--- PASS: TestNatsHandleStartJobDuplicatePrevention (0.25s)\n=== RUN TestRestApi\n<6>[INFO] 2026/03/16 11:52:40 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:40 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:40 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:40 rest.go:88: Enabling REST start/stop job API\n=== RUN TestRestApi/StartJob\n<6>[INFO] 2026/03/16 11:52:40 job.go:779: new job (id: 1): cluster=testcluster, jobId=123, user=testuser, startTime=123456789\n=== RUN TestRestApi/StopJob\n<4>[WARNING] 2026/03/16 11:52:40 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:40 job.go:1035: archiving job... (dbid: 1): cluster=testcluster, jobId=123, user=testuser, startTime=123456789, duration=1000, state=completed\n=== RUN TestRestApi/CheckArchive\n=== RUN TestRestApi/CheckDoubleStart\n<4>[WARNING] 2026/03/16 11:52:40 rest.go:187: REST ERROR : a job with that jobId, cluster and startTime already exists: dbid: 1, jobid: 123\n=== RUN TestRestApi/StartJobFailed\n<6>[INFO] 2026/03/16 11:52:40 job.go:779: new job (id: 1): cluster=testcluster, jobId=12345, user=testuser, startTime=12345678\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:165: archiving job (dbid: 1) successful\n=== RUN TestRestApi/StopJobFailed\n<4>[WARNING] 2026/03/16 11:52:41 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:41 job.go:1035: archiving job... (dbid: 2): cluster=testcluster, jobId=12345, user=testuser, startTime=12345678, duration=10000, state=failed\n=== RUN TestRestApi/GetUsedNodesNoRunning\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:165: archiving job (dbid: 2) successful\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:121: Archive channel closed, worker exiting\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:238: All archive jobs completed successfully\n--- PASS: TestRestApi (1.05s)\n --- PASS: TestRestApi/StartJob (0.00s)\n --- PASS: TestRestApi/StopJob (0.00s)\n --- PASS: TestRestApi/CheckArchive (0.00s)\n --- PASS: TestRestApi/CheckDoubleStart (0.00s)\n --- PASS: TestRestApi/StartJobFailed (0.00s)\n --- PASS: TestRestApi/StopJobFailed (0.00s)\n --- PASS: TestRestApi/GetUsedNodesNoRunning (0.00s)\n=== RUN TestStopJobWithReusedJobId\n<6>[INFO] 2026/03/16 11:52:41 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:41 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:41 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:41 rest.go:88: Enabling REST start/stop job API\n=== RUN TestStopJobWithReusedJobId/StartFirstJob\n<6>[INFO] 2026/03/16 11:52:41 job.go:779: new job (id: 1): cluster=testcluster, jobId=999, user=testuser, startTime=200000000\n=== RUN TestStopJobWithReusedJobId/StopFirstJobAsFailed\n<4>[WARNING] 2026/03/16 11:52:42 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:42 job.go:1035: archiving job... (dbid: 1): cluster=testcluster, jobId=999, user=testuser, startTime=200000000, duration=1000, state=failed\n<6>[INFO] 2026/03/16 11:52:42 archiveWorker.go:165: archiving job (dbid: 1) successful\n=== RUN TestStopJobWithReusedJobId/StartSecondJob\n<6>[INFO] 2026/03/16 11:52:43 job.go:779: new job (id: 1): cluster=testcluster, jobId=999, user=testuser, startTime=300000000\n=== RUN TestStopJobWithReusedJobId/StopSecondJobBeforeSync\n<6>[INFO] 2026/03/16 11:52:43 job.go:1026: transferred cached job to main table: old id 1 -> new id 2 (jobId=999)\n<6>[INFO] 2026/03/16 11:52:43 job.go:1035: archiving job... (dbid: 2): cluster=testcluster, jobId=999, user=testuser, startTime=300000000, duration=1000, state=completed\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:165: archiving job (dbid: 2) successful\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:121: Archive channel closed, worker exiting\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:238: All archive jobs completed successfully\n--- PASS: TestStopJobWithReusedJobId (2.04s)\n --- PASS: TestStopJobWithReusedJobId/StartFirstJob (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StopFirstJobAsFailed (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StartSecondJob (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StopSecondJobBeforeSync (0.00s)\nPASS\nok \tgithub.com/ClusterCockpit/cc-backend/internal/api\t7.036s","is_error":false}]},"uuid":"591a630b-c031-4486-9d1e-6b3c0d55d8dc","timestamp":"2026-03-16T10:52:43.274Z","toolUseResult":{"stdout":"<6>[INFO] 2026/03/16 11:52:39 archiveWorker.go:238: All archive jobs completed successfully\n<6>[INFO] 2026/03/16 11:52:39 archiveWorker.go:121: Archive channel closed, worker exiting\n--- PASS: TestNatsHandleNodeStateEdgeCases (0.30s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/missing_cluster_field_in_JSON (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/malformed_JSON_with_unescaped_quotes (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/unicode_characters_in_hostname (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/very_large_node_count (0.05s)\n --- PASS: TestNatsHandleNodeStateEdgeCases/timestamp_in_past (0.05s)\n=== RUN TestNatsHandleStartJobDuplicatePrevention\n<6>[INFO] 2026/03/16 11:52:39 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:39 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:39 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:39 nats.go:297: NATS: new job (id: 1): cluster=testcluster, jobId=5001, user=testuser, startTime=1234567890\n<3>[ERROR] 2026/03/16 11:52:40 /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go:269: NATS start job: job with jobId 5001, cluster testcluster already exists (dbid: 113234315163880)\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:238: All archive jobs completed successfully\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:121: Archive channel closed, worker exiting\n--- PASS: TestNatsHandleStartJobDuplicatePrevention (0.25s)\n=== RUN TestRestApi\n<6>[INFO] 2026/03/16 11:52:40 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:40 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:40 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:40 rest.go:88: Enabling REST start/stop job API\n=== RUN TestRestApi/StartJob\n<6>[INFO] 2026/03/16 11:52:40 job.go:779: new job (id: 1): cluster=testcluster, jobId=123, user=testuser, startTime=123456789\n=== RUN TestRestApi/StopJob\n<4>[WARNING] 2026/03/16 11:52:40 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:40 job.go:1035: archiving job... (dbid: 1): cluster=testcluster, jobId=123, user=testuser, startTime=123456789, duration=1000, state=completed\n=== RUN TestRestApi/CheckArchive\n=== RUN TestRestApi/CheckDoubleStart\n<4>[WARNING] 2026/03/16 11:52:40 rest.go:187: REST ERROR : a job with that jobId, cluster and startTime already exists: dbid: 1, jobid: 123\n=== RUN TestRestApi/StartJobFailed\n<6>[INFO] 2026/03/16 11:52:40 job.go:779: new job (id: 1): cluster=testcluster, jobId=12345, user=testuser, startTime=12345678\n<6>[INFO] 2026/03/16 11:52:40 archiveWorker.go:165: archiving job (dbid: 1) successful\n=== RUN TestRestApi/StopJobFailed\n<4>[WARNING] 2026/03/16 11:52:41 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:41 job.go:1035: archiving job... (dbid: 2): cluster=testcluster, jobId=12345, user=testuser, startTime=12345678, duration=10000, state=failed\n=== RUN TestRestApi/GetUsedNodesNoRunning\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:165: archiving job (dbid: 2) successful\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:121: Archive channel closed, worker exiting\n<6>[INFO] 2026/03/16 11:52:41 archiveWorker.go:238: All archive jobs completed successfully\n--- PASS: TestRestApi (1.05s)\n --- PASS: TestRestApi/StartJob (0.00s)\n --- PASS: TestRestApi/StopJob (0.00s)\n --- PASS: TestRestApi/CheckArchive (0.00s)\n --- PASS: TestRestApi/CheckDoubleStart (0.00s)\n --- PASS: TestRestApi/StartJobFailed (0.00s)\n --- PASS: TestRestApi/StopJobFailed (0.00s)\n --- PASS: TestRestApi/GetUsedNodesNoRunning (0.00s)\n=== RUN TestStopJobWithReusedJobId\n<6>[INFO] 2026/03/16 11:52:41 migration.go:122: Legacy database without version or missing database file!\n<6>[INFO] 2026/03/16 11:52:41 migration.go:129: unsupported database version 0, need 11.\nPlease backup your database file and run cc-backend -migrate-db\n<6>[INFO] 2026/03/16 11:52:41 dbConnection.go:96: SQLite config: cache_size=2048MB/conn, soft_heap_limit=16384MB, max_conns=4\n<6>[INFO] 2026/03/16 11:52:41 rest.go:88: Enabling REST start/stop job API\n=== RUN TestStopJobWithReusedJobId/StartFirstJob\n<6>[INFO] 2026/03/16 11:52:41 job.go:779: new job (id: 1): cluster=testcluster, jobId=999, user=testuser, startTime=200000000\n=== RUN TestStopJobWithReusedJobId/StopFirstJobAsFailed\n<4>[WARNING] 2026/03/16 11:52:42 job.go:162: Error while scanning rows (Job): sql: no rows in result set\n<6>[INFO] 2026/03/16 11:52:42 job.go:1035: archiving job... (dbid: 1): cluster=testcluster, jobId=999, user=testuser, startTime=200000000, duration=1000, state=failed\n<6>[INFO] 2026/03/16 11:52:42 archiveWorker.go:165: archiving job (dbid: 1) successful\n=== RUN TestStopJobWithReusedJobId/StartSecondJob\n<6>[INFO] 2026/03/16 11:52:43 job.go:779: new job (id: 1): cluster=testcluster, jobId=999, user=testuser, startTime=300000000\n=== RUN TestStopJobWithReusedJobId/StopSecondJobBeforeSync\n<6>[INFO] 2026/03/16 11:52:43 job.go:1026: transferred cached job to main table: old id 1 -> new id 2 (jobId=999)\n<6>[INFO] 2026/03/16 11:52:43 job.go:1035: archiving job... (dbid: 2): cluster=testcluster, jobId=999, user=testuser, startTime=300000000, duration=1000, state=completed\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:223: Initiating archiver shutdown...\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:165: archiving job (dbid: 2) successful\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:121: Archive channel closed, worker exiting\n<6>[INFO] 2026/03/16 11:52:43 archiveWorker.go:238: All archive jobs completed successfully\n--- PASS: TestStopJobWithReusedJobId (2.04s)\n --- PASS: TestStopJobWithReusedJobId/StartFirstJob (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StopFirstJobAsFailed (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StartSecondJob (0.00s)\n --- PASS: TestStopJobWithReusedJobId/StopSecondJobBeforeSync (0.00s)\nPASS\nok \tgithub.com/ClusterCockpit/cc-backend/internal/api\t7.036s","stderr":"","interrupted":false,"isImage":false,"noOutputExpected":false},"sourceToolAssistantUUID":"10010e78-c6cf-4585-9eee-1cfad80e73a6","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"1add6bd4-a28e-4f1a-8bda-a31d16108198","isSidechain":false,"promptId":"199b3d72-f5b0-4b75-86a0-07c82c987e1a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01FveJNRtPJBBc9b2vt1jPV9","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→// natsMessage wraps a raw NATS message with its subject for channel-based processing.\n 28→type natsMessage struct {\n 29→\tsubject string\n 30→\tdata []byte\n 31→}\n 32→\n 33→// NatsAPI provides NATS subscription-based handlers for Job and Node operations.\n 34→// It mirrors the functionality of the REST API but uses NATS messaging with\n 35→// InfluxDB line protocol as the message format.\n 36→//\n 37→// # Message Format\n 38→//\n 39→// All NATS messages use InfluxDB line protocol format (https://docs.influxdata.com/influxdb/v2.0/reference/syntax/line-protocol/)\n 40→// with the following structure:\n 41→//\n 42→//\tmeasurement,tag1=value1,tag2=value2 field1=value1,field2=value2 timestamp\n 43→//\n 44→// # Job Events\n 45→//\n 46→// Job start/stop events use the \"job\" measurement with a \"function\" tag to distinguish operations:\n 47→//\n 48→//\tjob,function=start_job event=\"{...JSON payload...}\" <timestamp>\n 49→//\tjob,function=stop_job event=\"{...JSON payload...}\" <timestamp>\n 50→//\n 51→// The JSON payload in the \"event\" field follows the schema.Job or StopJobAPIRequest structure.\n 52→//\n 53→// Example job start message:\n 54→//\n 55→//\tjob,function=start_job event=\"{\\\"jobId\\\":1001,\\\"user\\\":\\\"testuser\\\",\\\"cluster\\\":\\\"testcluster\\\",...}\" 1234567890000000000\n 56→//\n 57→// # Node State Events\n 58→//\n 59→// Node state updates use the \"nodestate\" measurement with cluster information:\n 60→//\n 61→//\tnodestate event=\"{...JSON payload...}\" <timestamp>\n 62→//\n 63→// The JSON payload follows the UpdateNodeStatesRequest structure.\n 64→//\n 65→// Example node state message:\n 66→//\n 67→//\tnodestate event=\"{\\\"cluster\\\":\\\"testcluster\\\",\\\"nodes\\\":[{\\\"hostname\\\":\\\"node01\\\",\\\"states\\\":[\\\"idle\\\"]}]}\" 1234567890000000000\n 68→type NatsAPI struct {\n 69→\tJobRepository *repository.JobRepository\n 70→\t// RepositoryMutex protects job creation operations from race conditions\n 71→\t// when checking for duplicate jobs during startJob calls.\n 72→\tRepositoryMutex sync.Mutex\n 73→\t// jobCh receives job event messages for processing by worker goroutines.\n 74→\tjobCh chan natsMessage\n 75→\t// nodeCh receives node state messages for processing by worker goroutines.\n 76→\tnodeCh chan natsMessage\n 77→}\n 78→\n 79→// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n 80→// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\n 81→func NewNatsAPI() *NatsAPI {\n 82→\tjobConc := 8\n 83→\tnodeConc := 2\n 84→\n 85→\tif s := config.Keys.APISubjects; s != nil {\n 86→\t\tif s.JobConcurrency > 0 {\n 87→\t\t\tjobConc = s.JobConcurrency\n 88→\t\t}\n 89→\t\tif s.NodeConcurrency > 0 {\n 90→\t\t\tnodeConc = s.NodeConcurrency\n 91→\t\t}\n 92→\t}\n 93→\n 94→\tapi := &NatsAPI{\n 95→\t\tJobRepository: repository.GetJobRepository(),\n 96→\t\tjobCh: make(chan natsMessage, jobConc),\n 97→\t\tnodeCh: make(chan natsMessage, nodeConc),\n 98→\t}\n 99→\n 100→\t// Start worker goroutines\n 101→\tfor range jobConc {\n 102→\t\tgo api.jobWorker()\n 103→\t}\n 104→\tfor range nodeConc {\n 105→\t\tgo api.nodeWorker()\n 106→\t}\n 107→\n 108→\treturn api\n 109→}\n 110→\n 111→// jobWorker processes job event messages from the job channel.\n 112→func (api *NatsAPI) jobWorker() {\n 113→\tfor msg := range api.jobCh {\n 114→\t\tapi.handleJobEvent(msg.subject, msg.data)\n 115→\t}\n 116→}\n 117→\n 118→// nodeWorker processes node state messages from the node channel.\n 119→func (api *NatsAPI) nodeWorker() {\n 120→\tfor msg := range api.nodeCh {\n 121→\t\tapi.handleNodeState(msg.subject, msg.data)\n 122→\t}\n 123→}\n 124→\n 125→// subscribe registers a NATS subscription using queue groups when configured.\n 126→func subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n 127→\tif queueGroup != \"\" {\n 128→\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n 129→\t}\n 130→\treturn client.Subscribe(subject, handler)\n 131→}\n 132→\n 133→// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n 134→// Messages are delivered to buffered channels and processed by worker goroutines.\n 135→// Returns an error if the NATS client is not available or subscription fails.\n 136→func (api *NatsAPI) StartSubscriptions() error {\n 137→\tclient := nats.GetClient()\n 138→\tif client == nil {\n 139→\t\tcclog.Warn(\"NATS client not available, skipping API subscriptions\")\n 140→\t\treturn nil\n 141→\t}\n 142→\n 143→\tif config.Keys.APISubjects != nil {\n 144→\t\ts := config.Keys.APISubjects\n 145→\t\tqg := s.QueueGroup\n 146→\n 147→\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n 148→\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n 149→\t\t}); err != nil {\n 150→\t\t\treturn err\n 151→\t\t}\n 152→\n 153→\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n 154→\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n 155→\t\t}); err != nil {\n 156→\t\t\treturn err\n 157→\t\t}\n 158→\n 159→\t\tcclog.Info(\"NATS API subscriptions started\")\n 160→\t}"}]},"uuid":"b7d5b7e0-2262-4044-bc46-42401d0d47b4","timestamp":"2026-03-16T10:55:10.203Z","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// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}","numLines":160,"startLine":1,"totalLines":468}},"sourceToolAssistantUUID":"1add6bd4-a28e-4f1a-8bda-a31d16108198","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"de4cc0e6-9823-41dc-8d83-bada919e8dc6","isSidechain":false,"promptId":"199b3d72-f5b0-4b75-86a0-07c82c987e1a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01UUkWkfShmSAenA6zh91ckj","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/config/config.go has been updated successfully."}]},"uuid":"8e3e234d-c0aa-4dee-9c49-c8359bf067d5","timestamp":"2026-03-16T10:55:14.488Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/config/config.go","oldString":"\tQueueGroup string `json:\"queue-group\"`\n\tJobConcurrency int `json:\"job-concurrency\"`","newString":"\tJobConcurrency int `json:\"job-concurrency\"`","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\n// Package config implements the program configuration data structures, validation and parsing\npackage config\n\nimport (\n\t\"bytes\"\n\t\"encoding/json\"\n\t\"time\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/resampler\"\n)\n\ntype ProgramConfig struct {\n\t// Address where the http (or https) server will listen on (for example: 'localhost:80').\n\tAddr string `json:\"addr\"`\n\n\t// Addresses from which secured admin API endpoints can be reached, can be wildcard \"*\"\n\tAPIAllowedIPs []string `json:\"api-allowed-ips\"`\n\n\tAPISubjects *NATSConfig `json:\"api-subjects\"`\n\n\t// Drop root permissions once .env was read and the port was taken.\n\tUser string `json:\"user\"`\n\tGroup string `json:\"group\"`\n\n\t// Disable authentication (for everything: API, Web-UI, ...)\n\tDisableAuthentication bool `json:\"disable-authentication\"`\n\n\t// If `embed-static-files` is true (default), the frontend files are directly\n\t// embeded into the go binary and expected to be in web/frontend. Only if\n\t// it is false the files in `static-files` are served instead.\n\tEmbedStaticFiles bool `json:\"embed-static-files\"`\n\tStaticFiles string `json:\"static-files\"`\n\n\t// Path to SQLite database file\n\tDB string `json:\"db\"`\n\n\tEnableJobTaggers bool `json:\"enable-job-taggers\"`\n\n\t// Validate json input against schema\n\tValidate bool `json:\"validate\"`\n\n\t// If 0 or empty, the session does not expire!\n\tSessionMaxAge string `json:\"session-max-age\"`\n\n\t// If both those options are not empty, use HTTPS using those certificates.\n\tHTTPSCertFile string `json:\"https-cert-file\"`\n\tHTTPSKeyFile string `json:\"https-key-file\"`\n\n\t// If not the empty string and `addr` does not end in \":80\",\n\t// redirect every request incoming at port 80 to that url.\n\tRedirectHTTPTo string `json:\"redirect-http-to\"`\n\n\t// Where to store MachineState files\n\tMachineStateDir string `json:\"machine-state-dir\"`\n\n\t// If not zero, automatically mark jobs as stopped running X seconds longer than their walltime.\n\tStopJobsExceedingWalltime int `json:\"stop-jobs-exceeding-walltime\"`\n\n\t// Defines time X in seconds in which jobs are considered to be \"short\" and will be filtered in specific views.\n\tShortRunningJobsDuration int `json:\"short-running-jobs-duration\"`\n\n\t// Energy Mix CO2 Emission Constant [g/kWh]\n\t// If entered, displays estimated CO2 emission for job based on jobs totalEnergy\n\tEmissionConstant int `json:\"emission-constant\"`\n\n\t// If exists, will enable dynamic zoom in frontend metric plots using the configured values\n\tEnableResampling *ResampleConfig `json:\"resampling\"`\n\n\t// Systemd unit name for log viewer (default: \"clustercockpit\")\n\tSystemdUnit string `json:\"systemd-unit\"`\n\n\t// Node state retention configuration\n\tNodeStateRetention *NodeStateRetention `json:\"nodestate-retention\"`\n\n\t// Database tuning configuration\n\tDbConfig *DbConfig `json:\"db-config\"`\n}\n\ntype DbConfig struct {\n\tCacheSizeMB int `json:\"cache-size-mb\"`\n\tSoftHeapLimitMB int `json:\"soft-heap-limit-mb\"`\n\tMaxOpenConnections int `json:\"max-open-connections\"`\n\tMaxIdleConnections int `json:\"max-idle-connections\"`\n\tConnectionMaxIdleTimeMins int `json:\"max-idle-time-minutes\"`\n\tBusyTimeoutMs int `json:\"busy-timeout-ms\"`\n}\n\ntype NodeStateRetention struct {\n\tPolicy string `json:\"policy\"` // \"delete\" or \"move\"\n\tAge int `json:\"age\"` // hours, default 24\n\tTargetKind string `json:\"target-kind\"` // \"file\" or \"s3\"\n\tTargetPath string `json:\"target-path\"`\n\tTargetEndpoint string `json:\"target-endpoint\"`\n\tTargetBucket string `json:\"target-bucket\"`\n\tTargetAccessKey string `json:\"target-access-key\"`\n\tTargetSecretKey string `json:\"target-secret-key\"`\n\tTargetRegion string `json:\"target-region\"`\n\tTargetUsePathStyle bool `json:\"target-use-path-style\"`\n\tMaxFileSizeMB int `json:\"max-file-size-mb\"`\n}\n\ntype ResampleConfig struct {\n\t// Minimum number of points to trigger resampling of data\n\tMinimumPoints int `json:\"minimum-points\"`\n\t// Array of resampling target resolutions, in seconds; Example: [600,300,60]\n\tResolutions []int `json:\"resolutions\"`\n\t// Trigger next zoom level at less than this many visible datapoints\n\tTrigger int `json:\"trigger\"`\n}\n\ntype NATSConfig struct {\n\tSubjectJobEvent string `json:\"subject-job-event\"`\n\tSubjectNodeState string `json:\"subject-node-state\"`\n\tQueueGroup string `json:\"queue-group\"`\n\tJobConcurrency int `json:\"job-concurrency\"`\n\tNodeConcurrency int `json:\"node-concurrency\"`\n}\n\ntype IntRange struct {\n\tFrom int `json:\"from\"`\n\tTo int `json:\"to\"`\n}\n\ntype TimeRange struct {\n\tFrom *time.Time `json:\"from\"`\n\tTo *time.Time `json:\"to\"`\n\tRange string `json:\"range,omitempty\"`\n}\n\ntype FilterRanges struct {\n\tDuration *IntRange `json:\"duration\"`\n\tNumNodes *IntRange `json:\"num-nodes\"`\n\tStartTime *TimeRange `json:\"start-time\"`\n}\n\nvar Keys ProgramConfig = ProgramConfig{\n\tAddr: \"localhost:8080\",\n\tEmbedStaticFiles: true,\n\tDB: \"./var/job.db\",\n\tSessionMaxAge: \"168h\",\n\tStopJobsExceedingWalltime: 0,\n\tShortRunningJobsDuration: 5 * 60,\n}\n\nfunc Init(mainConfig json.RawMessage) {\n\tValidate(configSchema, mainConfig)\n\tdec := json.NewDecoder(bytes.NewReader(mainConfig))\n\tdec.DisallowUnknownFields()\n\tif err := dec.Decode(&Keys); err != nil {\n\t\tcclog.Abortf(\"Config Init: Could not decode config file '%s'.\\nError: %s\\n\", mainConfig, err.Error())\n\t}\n\n\tif Keys.EnableResampling != nil && Keys.EnableResampling.MinimumPoints > 0 {\n\t\tresampler.SetMinimumRequiredPoints(Keys.EnableResampling.MinimumPoints)\n\t}\n}\n","structuredPatch":[{"oldStart":117,"oldLines":7,"newStart":117,"newLines":6,"lines":[" type NATSConfig struct {"," SubjectJobEvent string `json:\"subject-job-event\"`"," SubjectNodeState string `json:\"subject-node-state\"`","- QueueGroup string `json:\"queue-group\"`"," JobConcurrency int `json:\"job-concurrency\"`"," NodeConcurrency int `json:\"node-concurrency\"`"," }"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"de4cc0e6-9823-41dc-8d83-bada919e8dc6","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"8e3e234d-c0aa-4dee-9c49-c8359bf067d5","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_0187fwzzTVmsRAhb3sbP3TFd","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01VirGe4kP2gFSDywTcS7wJp","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","old_string":"// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}","new_string":"// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":221,"cache_read_input_tokens":51847,"output_tokens":786,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":221,"ephemeral_5m_input_tokens":0},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CZ6dsxCktWkEKvEdSJKwY","type":"assistant","uuid":"fb007c06-205a-4491-a546-a72ff77aa5f8","timestamp":"2026-03-16T10:55:23.169Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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{"parentUuid":"fb007c06-205a-4491-a546-a72ff77aa5f8","isSidechain":false,"promptId":"199b3d72-f5b0-4b75-86a0-07c82c987e1a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01VirGe4kP2gFSDywTcS7wJp","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go has been updated successfully."}]},"uuid":"3b578665-73e0-429d-91ac-7bcf2d1d8c5f","timestamp":"2026-03-16T10:55:23.182Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","oldString":"// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\n\t}","newString":"// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\n\t\tif err := client.Subscribe(s.SubjectJobEvent, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := client.Subscribe(s.SubjectNodeState, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tcclog.Info(\"NATS API subscriptions started\")\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 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// natsMessage wraps a raw NATS message with its subject for channel-based processing.\ntype natsMessage struct {\n\tsubject string\n\tdata []byte\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// jobCh receives job event messages for processing by worker goroutines.\n\tjobCh chan natsMessage\n\t// nodeCh receives node state messages for processing by worker goroutines.\n\tnodeCh chan natsMessage\n}\n\n// NewNatsAPI creates a new NatsAPI instance with channel-based worker pools.\n// Concurrency is configured via NATSConfig (defaults: JobConcurrency=8, NodeConcurrency=2).\nfunc NewNatsAPI() *NatsAPI {\n\tjobConc := 8\n\tnodeConc := 2\n\n\tif s := config.Keys.APISubjects; s != nil {\n\t\tif s.JobConcurrency > 0 {\n\t\t\tjobConc = s.JobConcurrency\n\t\t}\n\t\tif s.NodeConcurrency > 0 {\n\t\t\tnodeConc = s.NodeConcurrency\n\t\t}\n\t}\n\n\tapi := &NatsAPI{\n\t\tJobRepository: repository.GetJobRepository(),\n\t\tjobCh: make(chan natsMessage, jobConc),\n\t\tnodeCh: make(chan natsMessage, nodeConc),\n\t}\n\n\t// Start worker goroutines\n\tfor range jobConc {\n\t\tgo api.jobWorker()\n\t}\n\tfor range nodeConc {\n\t\tgo api.nodeWorker()\n\t}\n\n\treturn api\n}\n\n// jobWorker processes job event messages from the job channel.\nfunc (api *NatsAPI) jobWorker() {\n\tfor msg := range api.jobCh {\n\t\tapi.handleJobEvent(msg.subject, msg.data)\n\t}\n}\n\n// nodeWorker processes node state messages from the node channel.\nfunc (api *NatsAPI) nodeWorker() {\n\tfor msg := range api.nodeCh {\n\t\tapi.handleNodeState(msg.subject, msg.data)\n\t}\n}\n\n// subscribe registers a NATS subscription using queue groups when configured.\nfunc subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {\n\tif queueGroup != \"\" {\n\t\treturn client.SubscribeQueue(subject, queueGroup, handler)\n\t}\n\treturn client.Subscribe(subject, handler)\n}\n\n// StartSubscriptions registers all NATS subscriptions for Job and Node APIs.\n// Messages are delivered to buffered channels and processed by worker goroutines.\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\t\ts := config.Keys.APISubjects\n\t\tqg := s.QueueGroup\n\n\t\tif err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {\n\t\t\tapi.jobCh <- natsMessage{subject: subject, data: data}\n\t\t}); err != nil {\n\t\t\treturn err\n\t\t}\n\n\t\tif err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {\n\t\t\tapi.nodeCh <- natsMessage{subject: subject, data: data}\n\t\t}); 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":122,"oldLines":14,"newStart":122,"newLines":6,"lines":[" }"," }"," ","-// subscribe registers a NATS subscription using queue groups when configured.","-func subscribe(client *nats.Client, subject string, queueGroup string, handler func(string, []byte)) error {","- if queueGroup != \"\" {","- return client.SubscribeQueue(subject, queueGroup, handler)","- }","- return client.Subscribe(subject, handler)","-}","-"," // StartSubscriptions registers all NATS subscriptions for Job and Node APIs."," // Messages are delivered to buffered channels and processed by worker goroutines."," // Returns an error if the NATS client is not available or subscription fails."]},{"oldStart":142,"oldLines":15,"newStart":134,"newLines":14,"lines":[" "," if config.Keys.APISubjects != nil {"," s := config.Keys.APISubjects","- qg := s.QueueGroup"," ","- if err := subscribe(client, s.SubjectJobEvent, qg, func(subject string, data []byte) {","+ if err := client.Subscribe(s.SubjectJobEvent, func(subject string, data []byte) {"," api.jobCh <- natsMessage{subject: subject, data: data}"," }); err != nil {"," return err"," }"," ","- if err := subscribe(client, s.SubjectNodeState, qg, func(subject string, data []byte) {","+ if err := client.Subscribe(s.SubjectNodeState, func(subject string, data []byte) {"," api.nodeCh <- natsMessage{subject: subject, data: data}"," }); err != nil {"," return err"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"fb007c06-205a-4491-a546-a72ff77aa5f8","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"3b578665-73e0-429d-91ac-7bcf2d1d8c5f","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01DVVBAt2mrUeZXjWcybEGVB","type":"message","role":"assistant","content":[{"type":"text","text":"There's a stale reference somewhere. Let me check."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":933,"cache_read_input_tokens":52068,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":933},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6dtbSco7vUtmUw7cbBa","type":"assistant","uuid":"9e351fa9-42c0-4dfe-b937-d9c9aa43fad7","timestamp":"2026-03-16T10:55:26.917Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"9e351fa9-42c0-4dfe-b937-d9c9aa43fad7","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01DVVBAt2mrUeZXjWcybEGVB","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_019KGkqqSGfoPVmHVG3ZFMw3","name":"Grep","input":{"pattern":"QueueGroup|queue.group|queueGroup","path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/api/nats.go","output_mode":"content"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":933,"cache_read_input_tokens":52068,"output_tokens":136,"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_011CZ6dtbSco7vUtmUw7cbBa","type":"assistant","uuid":"45aa9f06-86d7-4487-b174-f0fd4b232411","timestamp":"2026-03-16T10:55:27.667Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"45aa9f06-86d7-4487-b174-f0fd4b232411","isSidechain":false,"type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Grep","command":"callback"},"parentToolUseID":"toolu_019KGkqqSGfoPVmHVG3ZFMw3","toolUseID":"toolu_019KGkqqSGfoPVmHVG3ZFMw3","timestamp":"2026-03-16T10:55:27.678Z","uuid":"0ec4afa4-b184-45c5-b501-e4e9e95cbafb","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"45aa9f06-86d7-4487-b174-f0fd4b232411","isSidechain":false,"promptId":"199b3d72-f5b0-4b75-86a0-07c82c987e1a","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_019KGkqqSGfoPVmHVG3ZFMw3","type":"tool_result","content":"No matches found"}]},"uuid":"e0cee11e-e4d4-4ebb-b59d-ae1cf784aba6","timestamp":"2026-03-16T10:55:27.677Z","toolUseResult":{"mode":"content","numFiles":0,"filenames":[],"content":"","numLines":0},"sourceToolAssistantUUID":"45aa9f06-86d7-4487-b174-f0fd4b232411","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
{"parentUuid":"e0cee11e-e4d4-4ebb-b59d-ae1cf784aba6","isSidechain":false,"message":{"model":"claude-opus-4-6","id":"msg_01WdeMnPeNjzpXg1xRN7gApv","type":"message","role":"assistant","content":[{"type":"text","text":"No matches — the diagnostic was stale. Let me verify the build."}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":151,"cache_read_input_tokens":53001,"cache_creation":{"ephemeral_5m_input_tokens":0,"ephemeral_1h_input_tokens":151},"output_tokens":1,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CZ6dtvg1SrrtKx6bA579X","type":"assistant","uuid":"0113ced1-abe1-49d8-bc61-2546c0ae20f7","timestamp":"2026-03-16T10:55:30.725Z","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"d4fbf0d1-89b3-4ac5-85d3-56adb5d38709","version":"2.1.76","gitBranch":"hotfix","slug":"mossy-wondering-dragonfly"}
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