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{"parentUuid":"5ff60b3d-bd08-4c59-9e2e-7f30924d298a","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01L1DBZTPyEvByjBuFKfPN4Y","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\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"uuid":"88913ebf-4031-4b6c-9f5d-367e60f79b1f","timestamp":"2026-03-11T06:25:46.769Z","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}","numLines":80,"startLine":1,"totalLines":148}},"sourceToolAssistantUUID":"5ff60b3d-bd08-4c59-9e2e-7f30924d298a"}
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{"parentUuid":"5765e823-c419-440f-a3c5-39e9d5c2b414","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":"Currently a segvault occurs when the option enable-job-taggers is set to true but the tagger rules directories are missing. Analyse the problem and fix it."},"uuid":"65bcee78-37bd-43fd-8d1c-03d12ce9b39d","timestamp":"2026-03-11T06:47:56.102Z","permissionMode":"acceptEdits"}
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{"parentUuid":"2f6f30f1-1e5b-404b-8245-8c9b8ea8e591","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01XNkWHaZ3wFsyQMufCpp4do","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 tagger provides automatic job tagging functionality for cc-backend.\n     7→// It supports detecting applications and classifying jobs based on configurable rules.\n     8→// Tags are automatically applied when jobs start or stop, or can be applied retroactively\n     9→// to existing jobs using RunTaggers.\n    10→package tagger\n    11→\n    12→import (\n    13→\t\"fmt\"\n    14→\t\"sync\"\n    15→\n    16→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n    17→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n    18→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n    19→)\n    20→\n    21→// Tagger is the interface that must be implemented by all tagging components.\n    22→// Taggers can be registered at job start or stop events to automatically apply tags.\n    23→type Tagger interface {\n    24→\t// Register initializes the tagger and loads any required configuration.\n    25→\t// It should be called once before the tagger is used.\n    26→\tRegister() error\n    27→\n    28→\t// Match evaluates the tagger's rules against a job and applies appropriate tags.\n    29→\t// It is called for each job that needs to be evaluated.\n    30→\tMatch(job *schema.Job)\n    31→}\n    32→\n    33→// TaggerInfo holds metadata about a tagger for JSON serialization.\n    34→type TaggerInfo struct {\n    35→\tName    string `json:\"name\"`\n    36→\tType    string `json:\"type\"`\n    37→\tRunning bool   `json:\"running\"`\n    38→}\n    39→\n    40→var (\n    41→\tinitOnce     sync.Once\n    42→\tjobTagger    *JobTagger\n    43→\tstatusMu     sync.Mutex\n    44→\ttaggerStatus = map[string]bool{}\n    45→)\n    46→\n    47→// Known tagger definitions: name -> (type, factory)\n    48→type taggerDef struct {\n    49→\tttype   string\n    50→\tfactory func() Tagger\n    51→}\n    52→\n    53→var knownTaggers = map[string]taggerDef{\n    54→\t\"AppTagger\":      {ttype: \"start\", factory: func() Tagger { return &AppTagger{} }},\n    55→\t\"JobClassTagger\": {ttype: \"stop\", factory: func() Tagger { return &JobClassTagger{} }},\n    56→}\n    57→\n    58→// JobTagger coordinates multiple taggers that run at different job lifecycle events.\n    59→// It maintains separate lists of taggers that run when jobs start and when they stop.\n    60→type JobTagger struct {\n    61→\t// startTaggers are applied when a job starts (e.g., application detection)\n    62→\tstartTaggers []Tagger\n    63→\t// stopTaggers are applied when a job completes (e.g., job classification)\n    64→\tstopTaggers []Tagger\n    65→}\n    66→\n    67→func newTagger() {\n    68→\tjobTagger = &JobTagger{}\n    69→\tjobTagger.startTaggers = make([]Tagger, 0)\n    70→\tjobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})\n    71→\tjobTagger.stopTaggers = make([]Tagger, 0)\n    72→\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})\n    73→\n    74→\tfor _, tagger := range jobTagger.startTaggers {\n    75→\t\tif err := tagger.Register(); err != nil {\n    76→\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n    77→\t\t}\n    78→\t}\n    79→\tfor _, tagger := range jobTagger.stopTaggers {\n    80→\t\tif err := tagger.Register(); err != nil {\n    81→\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n    82→\t\t}\n    83→\t}\n    84→}\n    85→\n    86→// Init initializes the job tagger system and registers it with the job repository.\n    87→// This function is safe to call multiple times; initialization only occurs once.\n    88→// It should be called during application startup.\n    89→func Init() {\n    90→\tinitOnce.Do(func() {\n    91→\t\tnewTagger()\n    92→\t\trepository.RegisterJobHook(jobTagger)\n    93→\t})\n    94→}\n    95→\n    96→// JobStartCallback is called when a job starts.\n    97→// It runs all registered start taggers (e.g., application detection) on the job.\n    98→func (jt *JobTagger) JobStartCallback(job *schema.Job) {\n    99→\tfor _, tagger := range jt.startTaggers {\n   100→\t\ttagger.Match(job)\n   101→\t}\n   102→}\n   103→\n   104→// JobStopCallback is called when a job completes.\n   105→// It runs all registered stop taggers (e.g., job classification) on the job.\n   106→func (jt *JobTagger) JobStopCallback(job *schema.Job) {\n   107→\tfor _, tagger := range jt.stopTaggers {\n   108→\t\ttagger.Match(job)\n   109→\t}\n   110→}\n   111→\n   112→// ListTaggers returns information about all known taggers with their current running status.\n   113→func ListTaggers() []TaggerInfo {\n   114→\tstatusMu.Lock()\n   115→\tdefer statusMu.Unlock()\n   116→\n   117→\tresult := make([]TaggerInfo, 0, len(knownTaggers))\n   118→\tfor name, def := range knownTaggers {\n   119→\t\tresult = append(result, TaggerInfo{\n   120→\t\t\tName:    name,\n   121→\t\t\tType:    def.ttype,\n   122→\t\t\tRunning: taggerStatus[name],\n   123→\t\t})\n   124→\t}\n   125→\treturn result\n   126→}\n   127→\n   128→// RunTaggerByName starts a tagger by name asynchronously on all jobs.\n   129→// Returns an error if the name is unknown or the tagger is already running.\n   130→func RunTaggerByName(name string) error {\n   131→\tdef, ok := knownTaggers[name]\n   132→\tif !ok {\n   133→\t\treturn fmt.Errorf(\"unknown tagger: %s\", name)\n   134→\t}\n   135→\n   136→\tstatusMu.Lock()\n   137→\tif taggerStatus[name] {\n   138→\t\tstatusMu.Unlock()\n   139→\t\treturn fmt.Errorf(\"tagger %s is already running\", name)\n   140→\t}\n   141→\ttaggerStatus[name] = true\n   142→\tstatusMu.Unlock()\n   143→\n   144→\tgo func() {\n   145→\t\tdefer func() {\n   146→\t\t\tstatusMu.Lock()\n   147→\t\t\ttaggerStatus[name] = false\n   148→\t\t\tstatusMu.Unlock()\n   149→\t\t}()\n   150→\n   151→\t\tt := def.factory()\n   152→\t\tif err := t.Register(); err != nil {\n   153→\t\t\tcclog.Errorf(\"Failed to register tagger %s: %s\", name, err)\n   154→\t\t\treturn\n   155→\t\t}\n   156→\n   157→\t\tr := repository.GetJobRepository()\n   158→\t\tjl, err := r.GetJobList(0, 0)\n   159→\t\tif err != nil {\n   160→\t\t\tcclog.Errorf(\"Error getting job list for tagger %s: %s\", name, err)\n   161→\t\t\treturn\n   162→\t\t}\n   163→\n   164→\t\tcclog.Infof(\"Running tagger %s on %d jobs\", name, len(jl))\n   165→\t\tfor _, id := range jl {\n   166→\t\t\tjob, err := r.FindByIDDirect(id)\n   167→\t\t\tif err != nil {\n   168→\t\t\t\tcclog.Errorf(\"Error getting job %d for tagger %s: %s\", id, name, err)\n   169→\t\t\t\tcontinue\n   170→\t\t\t}\n   171→\t\t\tt.Match(job)\n   172→\t\t}\n   173→\t\tcclog.Infof(\"Tagger %s completed\", name)\n   174→\t}()\n   175→\n   176→\treturn nil\n   177→}\n   178→\n   179→// RunTaggers applies all configured taggers to all existing jobs in the repository.\n   180→// This is useful for retroactively applying tags to jobs that were created before\n   181→// the tagger system was initialized or when new tagging rules are added.\n   182→// It fetches all jobs and runs both start and stop taggers on each one.\n   183→func RunTaggers() error {\n   184→\tnewTagger()\n   185→\tr := repository.GetJobRepository()\n   186→\tjl, err := r.GetJobList(0, 0) // 0 limit means get all jobs (no pagination)\n   187→\tif err != nil {\n   188→\t\tcclog.Errorf(\"Error while getting job list %s\", err)\n   189→\t\treturn err\n   190→\t}\n   191→\n   192→\tfor _, id := range jl {\n   193→\t\tjob, err := r.FindByIDDirect(id)\n   194→\t\tif err != nil {\n   195→\t\t\tcclog.Errorf(\"Error while getting job %s\", err)\n   196→\t\t\treturn err\n   197→\t\t}\n   198→\t\tfor _, tagger := range jobTagger.startTaggers {\n   199→\t\t\ttagger.Match(job)\n   200→\t\t}\n   201→\t\tfor _, tagger := range jobTagger.stopTaggers {\n   202→\t\t\tcclog.Infof(\"Run stop tagger for job %d\", *job.ID)\n   203→\t\t\ttagger.Match(job)\n   204→\t\t}\n   205→\t}\n   206→\treturn nil\n   207→}\n   208→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"uuid":"0de0f4e3-5b10-4b2d-9c60-5df63619b9b5","timestamp":"2026-03-11T06:47:59.499Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/tagger.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 tagger provides automatic job tagging functionality for cc-backend.\n// It supports detecting applications and classifying jobs based on configurable rules.\n// Tags are automatically applied when jobs start or stop, or can be applied retroactively\n// to existing jobs using RunTaggers.\npackage tagger\n\nimport (\n\t\"fmt\"\n\t\"sync\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n)\n\n// Tagger is the interface that must be implemented by all tagging components.\n// Taggers can be registered at job start or stop events to automatically apply tags.\ntype Tagger interface {\n\t// Register initializes the tagger and loads any required configuration.\n\t// It should be called once before the tagger is used.\n\tRegister() error\n\n\t// Match evaluates the tagger's rules against a job and applies appropriate tags.\n\t// It is called for each job that needs to be evaluated.\n\tMatch(job *schema.Job)\n}\n\n// TaggerInfo holds metadata about a tagger for JSON serialization.\ntype TaggerInfo struct {\n\tName    string `json:\"name\"`\n\tType    string `json:\"type\"`\n\tRunning bool   `json:\"running\"`\n}\n\nvar (\n\tinitOnce     sync.Once\n\tjobTagger    *JobTagger\n\tstatusMu     sync.Mutex\n\ttaggerStatus = map[string]bool{}\n)\n\n// Known tagger definitions: name -> (type, factory)\ntype taggerDef struct {\n\tttype   string\n\tfactory func() Tagger\n}\n\nvar knownTaggers = map[string]taggerDef{\n\t\"AppTagger\":      {ttype: \"start\", factory: func() Tagger { return &AppTagger{} }},\n\t\"JobClassTagger\": {ttype: \"stop\", factory: func() Tagger { return &JobClassTagger{} }},\n}\n\n// JobTagger coordinates multiple taggers that run at different job lifecycle events.\n// It maintains separate lists of taggers that run when jobs start and when they stop.\ntype JobTagger struct {\n\t// startTaggers are applied when a job starts (e.g., application detection)\n\tstartTaggers []Tagger\n\t// stopTaggers are applied when a job completes (e.g., job classification)\n\tstopTaggers []Tagger\n}\n\nfunc newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})\n\n\tfor _, tagger := range jobTagger.startTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t}\n\t}\n\tfor _, tagger := range jobTagger.stopTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t}\n\t}\n}\n\n// Init initializes the job tagger system and registers it with the job repository.\n// This function is safe to call multiple times; initialization only occurs once.\n// It should be called during application startup.\nfunc Init() {\n\tinitOnce.Do(func() {\n\t\tnewTagger()\n\t\trepository.RegisterJobHook(jobTagger)\n\t})\n}\n\n// JobStartCallback is called when a job starts.\n// It runs all registered start taggers (e.g., application detection) on the job.\nfunc (jt *JobTagger) JobStartCallback(job *schema.Job) {\n\tfor _, tagger := range jt.startTaggers {\n\t\ttagger.Match(job)\n\t}\n}\n\n// JobStopCallback is called when a job completes.\n// It runs all registered stop taggers (e.g., job classification) on the job.\nfunc (jt *JobTagger) JobStopCallback(job *schema.Job) {\n\tfor _, tagger := range jt.stopTaggers {\n\t\ttagger.Match(job)\n\t}\n}\n\n// ListTaggers returns information about all known taggers with their current running status.\nfunc ListTaggers() []TaggerInfo {\n\tstatusMu.Lock()\n\tdefer statusMu.Unlock()\n\n\tresult := make([]TaggerInfo, 0, len(knownTaggers))\n\tfor name, def := range knownTaggers {\n\t\tresult = append(result, TaggerInfo{\n\t\t\tName:    name,\n\t\t\tType:    def.ttype,\n\t\t\tRunning: taggerStatus[name],\n\t\t})\n\t}\n\treturn result\n}\n\n// RunTaggerByName starts a tagger by name asynchronously on all jobs.\n// Returns an error if the name is unknown or the tagger is already running.\nfunc RunTaggerByName(name string) error {\n\tdef, ok := knownTaggers[name]\n\tif !ok {\n\t\treturn fmt.Errorf(\"unknown tagger: %s\", name)\n\t}\n\n\tstatusMu.Lock()\n\tif taggerStatus[name] {\n\t\tstatusMu.Unlock()\n\t\treturn fmt.Errorf(\"tagger %s is already running\", name)\n\t}\n\ttaggerStatus[name] = true\n\tstatusMu.Unlock()\n\n\tgo func() {\n\t\tdefer func() {\n\t\t\tstatusMu.Lock()\n\t\t\ttaggerStatus[name] = false\n\t\t\tstatusMu.Unlock()\n\t\t}()\n\n\t\tt := def.factory()\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"Failed to register tagger %s: %s\", name, err)\n\t\t\treturn\n\t\t}\n\n\t\tr := repository.GetJobRepository()\n\t\tjl, err := r.GetJobList(0, 0)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"Error getting job list for tagger %s: %s\", name, err)\n\t\t\treturn\n\t\t}\n\n\t\tcclog.Infof(\"Running tagger %s on %d jobs\", name, len(jl))\n\t\tfor _, id := range jl {\n\t\t\tjob, err := r.FindByIDDirect(id)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error getting job %d for tagger %s: %s\", id, name, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tt.Match(job)\n\t\t}\n\t\tcclog.Infof(\"Tagger %s completed\", name)\n\t}()\n\n\treturn nil\n}\n\n// RunTaggers applies all configured taggers to all existing jobs in the repository.\n// This is useful for retroactively applying tags to jobs that were created before\n// the tagger system was initialized or when new tagging rules are added.\n// It fetches all jobs and runs both start and stop taggers on each one.\nfunc RunTaggers() error {\n\tnewTagger()\n\tr := repository.GetJobRepository()\n\tjl, err := r.GetJobList(0, 0) // 0 limit means get all jobs (no pagination)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while getting job list %s\", err)\n\t\treturn err\n\t}\n\n\tfor _, id := range jl {\n\t\tjob, err := r.FindByIDDirect(id)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"Error while getting job %s\", err)\n\t\t\treturn err\n\t\t}\n\t\tfor _, tagger := range jobTagger.startTaggers {\n\t\t\ttagger.Match(job)\n\t\t}\n\t\tfor _, tagger := range jobTagger.stopTaggers {\n\t\t\tcclog.Infof(\"Run stop tagger for job %d\", *job.ID)\n\t\t\ttagger.Match(job)\n\t\t}\n\t}\n\treturn nil\n}\n","numLines":208,"startLine":1,"totalLines":208}},"sourceToolAssistantUUID":"2f6f30f1-1e5b-404b-8245-8c9b8ea8e591"}
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{"parentUuid":"35034057-ba1d-4d35-acbd-30274c2eed13","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01TYNNQ5giYuM9AhHu91oWqK","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 tagger\n     7→\n     8→import (\n     9→\t\"bufio\"\n    10→\t\"fmt\"\n    11→\t\"os\"\n    12→\t\"path/filepath\"\n    13→\t\"regexp\"\n    14→\t\"strings\"\n    15→\n    16→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n    17→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n    18→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n    19→\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n    20→)\n    21→\n    22→func metadataKeys(m map[string]string) []string {\n    23→\tkeys := make([]string, 0, len(m))\n    24→\tfor k := range m {\n    25→\t\tkeys = append(keys, k)\n    26→\t}\n    27→\treturn keys\n    28→}\n    29→\n    30→const (\n    31→\t// defaultConfigPath is the default path for application tagging configuration\n    32→\tdefaultConfigPath = \"./var/tagger/apps\"\n    33→\t// tagTypeApp is the tag type identifier for application tags\n    34→\ttagTypeApp = \"app\"\n    35→\t// configDirMatch is the directory name used for matching filesystem events\n    36→\tconfigDirMatch = \"apps\"\n    37→)\n    38→\n    39→type appInfo struct {\n    40→\ttag      string\n    41→\tpatterns []*regexp.Regexp\n    42→}\n    43→\n    44→// AppTagger detects applications by matching patterns in job scripts.\n    45→// It loads application patterns from an external configuration directory and can dynamically reload\n    46→// configuration when files change. When a job script matches a pattern,\n    47→// the corresponding application tag is automatically applied.\n    48→type AppTagger struct {\n    49→\t// apps holds application patterns in deterministic order\n    50→\tapps []appInfo\n    51→\t// tagType is the type of tag (\"app\")\n    52→\ttagType string\n    53→\t// cfgPath is the path to watch for configuration changes\n    54→\tcfgPath string\n    55→}\n    56→\n    57→func (t *AppTagger) scanApp(f *os.File, fns string) {\n    58→\tscanner := bufio.NewScanner(f)\n    59→\ttag := strings.TrimSuffix(fns, filepath.Ext(fns))\n    60→\tai := appInfo{tag: tag, patterns: make([]*regexp.Regexp, 0)}\n    61→\n    62→\tfor scanner.Scan() {\n    63→\t\tline := strings.TrimSpace(scanner.Text())\n    64→\t\tif line == \"\" {\n    65→\t\t\tcontinue\n    66→\t\t}\n    67→\t\t// Wrap pattern to skip comment lines: match only if not preceded by # on the same line\n    68→\t\twrapped := `(?m)^[^#]*` + line\n    69→\t\tre, err := regexp.Compile(wrapped)\n    70→\t\tif err != nil {\n    71→\t\t\tcclog.Errorf(\"invalid regex pattern '%s' (wrapped: '%s') in %s: %v\", line, wrapped, fns, err)\n    72→\t\t\tcontinue\n    73→\t\t}\n    74→\t\tai.patterns = append(ai.patterns, re)\n    75→\t}\n    76→\n    77→\t// Remove existing entry for this tag if present\n    78→\tfor i, a := range t.apps {\n    79→\t\tif a.tag == tag {\n    80→\t\t\tt.apps = append(t.apps[:i], t.apps[i+1:]...)\n    81→\t\t\tbreak\n    82→\t\t}\n    83→\t}\n    84→\n    85→\tcclog.Infof(\"AppTagger loaded %d patterns for %s\", len(ai.patterns), tag)\n    86→\tt.apps = append(t.apps, ai)\n    87→}\n    88→\n    89→// EventMatch checks if a filesystem event should trigger configuration reload.\n    90→// It returns true if the event path contains \"apps\".\n    91→func (t *AppTagger) EventMatch(s string) bool {\n    92→\treturn strings.Contains(s, configDirMatch)\n    93→}\n    94→\n    95→// EventCallback is triggered when the configuration directory changes.\n    96→// It reloads all application pattern files from the watched directory.\n    97→func (t *AppTagger) EventCallback() {\n    98→\tfiles, err := os.ReadDir(t.cfgPath)\n    99→\tif err != nil {\n   100→\t\tcclog.Fatal(err)\n   101→\t}\n   102→\n   103→\tt.apps = make([]appInfo, 0)\n   104→\n   105→\tfor _, fn := range files {\n   106→\t\tif fn.IsDir() {\n   107→\t\t\tcontinue\n   108→\t\t}\n   109→\t\tfns := fn.Name()\n   110→\t\tcclog.Debugf(\"Process: %s\", fns)\n   111→\t\tf, err := os.Open(filepath.Join(t.cfgPath, fns))\n   112→\t\tif err != nil {\n   113→\t\t\tcclog.Errorf(\"error opening app file %s: %#v\", fns, err)\n   114→\t\t\tcontinue\n   115→\t\t}\n   116→\t\tt.scanApp(f, fns)\n   117→\t\tif err := f.Close(); err != nil {\n   118→\t\t\tcclog.Errorf(\"error closing app file %s: %#v\", fns, err)\n   119→\t\t}\n   120→\t}\n   121→}\n   122→\n   123→// Register initializes the AppTagger by loading application patterns from external folder.\n   124→// It sets up a file watch on ./var/tagger/apps if it exists, allowing for\n   125→// dynamic configuration updates without restarting the application.\n   126→// Returns an error if the configuration path does not exist or cannot be read.\n   127→func (t *AppTagger) Register() error {\n   128→\tif t.cfgPath == \"\" {\n   129→\t\tt.cfgPath = defaultConfigPath\n   130→\t}\n   131→\tt.tagType = tagTypeApp\n   132→\tt.apps = make([]appInfo, 0)\n   133→\n   134→\tif !util.CheckFileExists(t.cfgPath) {\n   135→\t\treturn fmt.Errorf(\"configuration path does not exist: %s\", t.cfgPath)\n   136→\t}\n   137→\n   138→\tfiles, err := os.ReadDir(t.cfgPath)\n   139→\tif err != nil {\n   140→\t\treturn fmt.Errorf(\"error reading app folder: %#v\", err)\n   141→\t}\n   142→\n   143→\tfor _, fn := range files {\n   144→\t\tif fn.IsDir() {\n   145→\t\t\tcontinue\n   146→\t\t}\n   147→\t\tfns := fn.Name()\n   148→\t\tcclog.Debugf(\"Process: %s\", fns)\n   149→\t\tf, err := os.Open(filepath.Join(t.cfgPath, fns))\n   150→\t\tif err != nil {\n   151→\t\t\tcclog.Errorf(\"error opening app file %s: %#v\", fns, err)\n   152→\t\t\tcontinue\n   153→\t\t}\n   154→\t\tt.scanApp(f, fns)\n   155→\t\tif err := f.Close(); err != nil {\n   156→\t\t\tcclog.Errorf(\"error closing app file %s: %#v\", fns, err)\n   157→\t\t}\n   158→\t}\n   159→\n   160→\tcclog.Infof(\"Setup file watch for %s\", t.cfgPath)\n   161→\tutil.AddListener(t.cfgPath, t)\n   162→\n   163→\treturn nil\n   164→}\n   165→\n   166→// Match attempts to detect the application used by a job by analyzing its job script.\n   167→// It fetches the job metadata, extracts the job script, and matches it against\n   168→// all configured application patterns using regular expressions.\n   169→// If a match is found, the corresponding application tag is added to the job.\n   170→// Multiple application tags can be applied if patterns for different apps match.\n   171→func (t *AppTagger) Match(job *schema.Job) {\n   172→\tr := repository.GetJobRepository()\n   173→\n   174→\tif len(t.apps) == 0 {\n   175→\t\tcclog.Warn(\"AppTagger: no app patterns loaded, skipping match\")\n   176→\t\treturn\n   177→\t}\n   178→\n   179→\tmetadata, err := r.FetchMetadata(job)\n   180→\tif err != nil {\n   181→\t\tcclog.Debugf(\"AppTagger: cannot fetch metadata for job %d on %s: %v\", job.JobID, job.Cluster, err)\n   182→\t\treturn\n   183→\t}\n   184→\n   185→\tif metadata == nil {\n   186→\t\tcclog.Debugf(\"AppTagger: metadata is nil for job %d on %s\", job.JobID, job.Cluster)\n   187→\t\treturn\n   188→\t}\n   189→\n   190→\tjobscript, ok := metadata[\"jobScript\"]\n   191→\tif !ok {\n   192→\t\tcclog.Debugf(\"AppTagger: no 'jobScript' key in metadata for job %d on %s (keys: %v)\",\n   193→\t\t\tjob.JobID, job.Cluster, metadataKeys(metadata))\n   194→\t\treturn\n   195→\t}\n   196→\n   197→\tif len(jobscript) == 0 {\n   198→\t\tcclog.Debugf(\"AppTagger: empty jobScript for job %d on %s\", job.JobID, job.Cluster)\n   199→\t\treturn\n   200→\t}\n   201→\n   202→\tid := *job.ID\n   203→\tjobscriptLower := strings.ToLower(jobscript)\n   204→\tcclog.Debugf(\"AppTagger: matching job %d (script length: %d) against %d apps\", id, len(jobscriptLower), len(t.apps))\n   205→\n   206→\tmatched := false\n   207→\tfor _, a := range t.apps {\n   208→\t\tfor _, re := range a.patterns {\n   209→\t\t\tif re.MatchString(jobscriptLower) {\n   210→\t\t\t\tif r.HasTag(id, t.tagType, a.tag) {\n   211→\t\t\t\t\tcclog.Debugf(\"AppTagger: job %d already has tag %s:%s, skipping\", id, t.tagType, a.tag)\n   212→\t\t\t\t} else {\n   213→\t\t\t\t\tcclog.Debugf(\"AppTagger: pattern '%s' matched for app '%s' on job %d\", re.String(), a.tag, id)\n   214→\t\t\t\t\tif _, err := r.AddTagOrCreateDirect(id, t.tagType, a.tag); err != nil {\n   215→\t\t\t\t\t\tcclog.Errorf(\"AppTagger: failed to add tag '%s' to job %d: %v\", a.tag, id, err)\n   216→\t\t\t\t\t}\n   217→\t\t\t\t}\n   218→\t\t\t\tmatched = true\n   219→\t\t\t\tbreak // matched this app, move to next app\n   220→\t\t\t}\n   221→\t\t}\n   222→\t}\n   223→\n   224→\tif !matched {\n   225→\t\tcclog.Debugf(\"AppTagger: no pattern matched for job %d on %s\", id, job.Cluster)\n   226→\t}\n   227→}\n   228→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"uuid":"fd0d1a57-a4c3-40cf-8459-f0968df9c73c","timestamp":"2026-03-11T06:48:03.609Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/detectApp.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 tagger\n\nimport (\n\t\"bufio\"\n\t\"fmt\"\n\t\"os\"\n\t\"path/filepath\"\n\t\"regexp\"\n\t\"strings\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n)\n\nfunc metadataKeys(m map[string]string) []string {\n\tkeys := make([]string, 0, len(m))\n\tfor k := range m {\n\t\tkeys = append(keys, k)\n\t}\n\treturn keys\n}\n\nconst (\n\t// defaultConfigPath is the default path for application tagging configuration\n\tdefaultConfigPath = \"./var/tagger/apps\"\n\t// tagTypeApp is the tag type identifier for application tags\n\ttagTypeApp = \"app\"\n\t// configDirMatch is the directory name used for matching filesystem events\n\tconfigDirMatch = \"apps\"\n)\n\ntype appInfo struct {\n\ttag      string\n\tpatterns []*regexp.Regexp\n}\n\n// AppTagger detects applications by matching patterns in job scripts.\n// It loads application patterns from an external configuration directory and can dynamically reload\n// configuration when files change. When a job script matches a pattern,\n// the corresponding application tag is automatically applied.\ntype AppTagger struct {\n\t// apps holds application patterns in deterministic order\n\tapps []appInfo\n\t// tagType is the type of tag (\"app\")\n\ttagType string\n\t// cfgPath is the path to watch for configuration changes\n\tcfgPath string\n}\n\nfunc (t *AppTagger) scanApp(f *os.File, fns string) {\n\tscanner := bufio.NewScanner(f)\n\ttag := strings.TrimSuffix(fns, filepath.Ext(fns))\n\tai := appInfo{tag: tag, patterns: make([]*regexp.Regexp, 0)}\n\n\tfor scanner.Scan() {\n\t\tline := strings.TrimSpace(scanner.Text())\n\t\tif line == \"\" {\n\t\t\tcontinue\n\t\t}\n\t\t// Wrap pattern to skip comment lines: match only if not preceded by # on the same line\n\t\twrapped := `(?m)^[^#]*` + line\n\t\tre, err := regexp.Compile(wrapped)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"invalid regex pattern '%s' (wrapped: '%s') in %s: %v\", line, wrapped, fns, err)\n\t\t\tcontinue\n\t\t}\n\t\tai.patterns = append(ai.patterns, re)\n\t}\n\n\t// Remove existing entry for this tag if present\n\tfor i, a := range t.apps {\n\t\tif a.tag == tag {\n\t\t\tt.apps = append(t.apps[:i], t.apps[i+1:]...)\n\t\t\tbreak\n\t\t}\n\t}\n\n\tcclog.Infof(\"AppTagger loaded %d patterns for %s\", len(ai.patterns), tag)\n\tt.apps = append(t.apps, ai)\n}\n\n// EventMatch checks if a filesystem event should trigger configuration reload.\n// It returns true if the event path contains \"apps\".\nfunc (t *AppTagger) EventMatch(s string) bool {\n\treturn strings.Contains(s, configDirMatch)\n}\n\n// EventCallback is triggered when the configuration directory changes.\n// It reloads all application pattern files from the watched directory.\nfunc (t *AppTagger) EventCallback() {\n\tfiles, err := os.ReadDir(t.cfgPath)\n\tif err != nil {\n\t\tcclog.Fatal(err)\n\t}\n\n\tt.apps = make([]appInfo, 0)\n\n\tfor _, fn := range files {\n\t\tif fn.IsDir() {\n\t\t\tcontinue\n\t\t}\n\t\tfns := fn.Name()\n\t\tcclog.Debugf(\"Process: %s\", fns)\n\t\tf, err := os.Open(filepath.Join(t.cfgPath, fns))\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"error opening app file %s: %#v\", fns, err)\n\t\t\tcontinue\n\t\t}\n\t\tt.scanApp(f, fns)\n\t\tif err := f.Close(); err != nil {\n\t\t\tcclog.Errorf(\"error closing app file %s: %#v\", fns, err)\n\t\t}\n\t}\n}\n\n// Register initializes the AppTagger by loading application patterns from external folder.\n// It sets up a file watch on ./var/tagger/apps if it exists, allowing for\n// dynamic configuration updates without restarting the application.\n// Returns an error if the configuration path does not exist or cannot be read.\nfunc (t *AppTagger) Register() error {\n\tif t.cfgPath == \"\" {\n\t\tt.cfgPath = defaultConfigPath\n\t}\n\tt.tagType = tagTypeApp\n\tt.apps = make([]appInfo, 0)\n\n\tif !util.CheckFileExists(t.cfgPath) {\n\t\treturn fmt.Errorf(\"configuration path does not exist: %s\", t.cfgPath)\n\t}\n\n\tfiles, err := os.ReadDir(t.cfgPath)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error reading app folder: %#v\", err)\n\t}\n\n\tfor _, fn := range files {\n\t\tif fn.IsDir() {\n\t\t\tcontinue\n\t\t}\n\t\tfns := fn.Name()\n\t\tcclog.Debugf(\"Process: %s\", fns)\n\t\tf, err := os.Open(filepath.Join(t.cfgPath, fns))\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"error opening app file %s: %#v\", fns, err)\n\t\t\tcontinue\n\t\t}\n\t\tt.scanApp(f, fns)\n\t\tif err := f.Close(); err != nil {\n\t\t\tcclog.Errorf(\"error closing app file %s: %#v\", fns, err)\n\t\t}\n\t}\n\n\tcclog.Infof(\"Setup file watch for %s\", t.cfgPath)\n\tutil.AddListener(t.cfgPath, t)\n\n\treturn nil\n}\n\n// Match attempts to detect the application used by a job by analyzing its job script.\n// It fetches the job metadata, extracts the job script, and matches it against\n// all configured application patterns using regular expressions.\n// If a match is found, the corresponding application tag is added to the job.\n// Multiple application tags can be applied if patterns for different apps match.\nfunc (t *AppTagger) Match(job *schema.Job) {\n\tr := repository.GetJobRepository()\n\n\tif len(t.apps) == 0 {\n\t\tcclog.Warn(\"AppTagger: no app patterns loaded, skipping match\")\n\t\treturn\n\t}\n\n\tmetadata, err := r.FetchMetadata(job)\n\tif err != nil {\n\t\tcclog.Debugf(\"AppTagger: cannot fetch metadata for job %d on %s: %v\", job.JobID, job.Cluster, err)\n\t\treturn\n\t}\n\n\tif metadata == nil {\n\t\tcclog.Debugf(\"AppTagger: metadata is nil for job %d on %s\", job.JobID, job.Cluster)\n\t\treturn\n\t}\n\n\tjobscript, ok := metadata[\"jobScript\"]\n\tif !ok {\n\t\tcclog.Debugf(\"AppTagger: no 'jobScript' key in metadata for job %d on %s (keys: %v)\",\n\t\t\tjob.JobID, job.Cluster, metadataKeys(metadata))\n\t\treturn\n\t}\n\n\tif len(jobscript) == 0 {\n\t\tcclog.Debugf(\"AppTagger: empty jobScript for job %d on %s\", job.JobID, job.Cluster)\n\t\treturn\n\t}\n\n\tid := *job.ID\n\tjobscriptLower := strings.ToLower(jobscript)\n\tcclog.Debugf(\"AppTagger: matching job %d (script length: %d) against %d apps\", id, len(jobscriptLower), len(t.apps))\n\n\tmatched := false\n\tfor _, a := range t.apps {\n\t\tfor _, re := range a.patterns {\n\t\t\tif re.MatchString(jobscriptLower) {\n\t\t\t\tif r.HasTag(id, t.tagType, a.tag) {\n\t\t\t\t\tcclog.Debugf(\"AppTagger: job %d already has tag %s:%s, skipping\", id, t.tagType, a.tag)\n\t\t\t\t} else {\n\t\t\t\t\tcclog.Debugf(\"AppTagger: pattern '%s' matched for app '%s' on job %d\", re.String(), a.tag, id)\n\t\t\t\t\tif _, err := r.AddTagOrCreateDirect(id, t.tagType, a.tag); err != nil {\n\t\t\t\t\t\tcclog.Errorf(\"AppTagger: failed to add tag '%s' to job %d: %v\", a.tag, id, err)\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tmatched = true\n\t\t\t\tbreak // matched this app, move to next app\n\t\t\t}\n\t\t}\n\t}\n\n\tif !matched {\n\t\tcclog.Debugf(\"AppTagger: no pattern matched for job %d on %s\", id, job.Cluster)\n\t}\n}\n","numLines":228,"startLine":1,"totalLines":228}},"sourceToolAssistantUUID":"35034057-ba1d-4d35-acbd-30274c2eed13"}
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{"parentUuid":"583373e5-e372-4714-aa2f-11daa3ea068d","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01Cp8aJ2MeERDyhhomezvNxD","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 tagger\n     7→\n     8→import (\n     9→\t\"bytes\"\n    10→\t\"encoding/json\"\n    11→\t\"fmt\"\n    12→\t\"maps\"\n    13→\t\"math\"\n    14→\t\"os\"\n    15→\t\"path/filepath\"\n    16→\t\"strings\"\n    17→\t\"text/template\"\n    18→\n    19→\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n    20→\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n    21→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n    22→\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n    23→\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n    24→\t\"github.com/expr-lang/expr\"\n    25→\t\"github.com/expr-lang/expr/vm\"\n    26→)\n    27→\n    28→const (\n    29→\t// defaultJobClassConfigPath is the default path for job classification configuration\n    30→\tdefaultJobClassConfigPath = \"./var/tagger/jobclasses\"\n    31→\t// tagTypeJobClass is the tag type identifier for job classification tags\n    32→\ttagTypeJobClass = \"jobClass\"\n    33→\t// jobClassConfigDirMatch is the directory name used for matching filesystem events\n    34→\tjobClassConfigDirMatch = \"jobclasses\"\n    35→\t// parametersFileName is the name of the parameters configuration file\n    36→\tparametersFileName = \"parameters.json\"\n    37→)\n    38→\n    39→// Variable defines a named expression that can be computed and reused in rules.\n    40→// Variables are evaluated before the main rule and their results are added to the environment.\n    41→type Variable struct {\n    42→\t// Name is the variable identifier used in rule expressions\n    43→\tName string `json:\"name\"`\n    44→\t// Expr is the expression to evaluate (must return a numeric value)\n    45→\tExpr string `json:\"expr\"`\n    46→}\n    47→\n    48→type ruleVariable struct {\n    49→\tname string\n    50→\texpr *vm.Program\n    51→}\n    52→\n    53→// RuleFormat defines the JSON structure for job classification rules.\n    54→// Each rule specifies requirements, metrics to analyze, variables to compute,\n    55→// and the final rule expression that determines if the job matches the classification.\n    56→type RuleFormat struct {\n    57→\t// Name is a human-readable description of the rule\n    58→\tName string `json:\"name\"`\n    59→\t// Tag is the classification tag to apply if the rule matches\n    60→\tTag string `json:\"tag\"`\n    61→\t// Parameters are shared values referenced in the rule (e.g., thresholds)\n    62→\tParameters []string `json:\"parameters\"`\n    63→\t// Metrics are the job metrics required for this rule (e.g., \"cpu_load\", \"mem_used\")\n    64→\tMetrics []string `json:\"metrics\"`\n    65→\t// Requirements are boolean expressions that must be true for the rule to apply\n    66→\tRequirements []string `json:\"requirements\"`\n    67→\t// Variables are computed values used in the rule expression\n    68→\tVariables []Variable `json:\"variables\"`\n    69→\t// Rule is the boolean expression that determines if the job matches\n    70→\tRule string `json:\"rule\"`\n    71→\t// Hint is a template string that generates a message when the rule matches\n    72→\tHint string `json:\"hint\"`\n    73→}\n    74→\n    75→type ruleInfo struct {\n    76→\tenv          map[string]any\n    77→\tmetrics      []string\n    78→\trequirements []*vm.Program\n    79→\tvariables    []ruleVariable\n    80→\trule         *vm.Program\n    81→\thint         *template.Template\n    82→}\n    83→\n    84→// JobRepository defines the interface for job database operations needed by the tagger.\n    85→// This interface allows for easier testing and decoupling from the concrete repository implementation.\n    86→type JobRepository interface {\n    87→\t// HasTag checks if a job already has a specific tag\n    88→\tHasTag(jobID int64, tagType string, tagName string) bool\n    89→\t// AddTagOrCreateDirect adds a tag to a job or creates it if it doesn't exist\n    90→\tAddTagOrCreateDirect(jobID int64, tagType string, tagName string) (tagID int64, err error)\n    91→\t// UpdateMetadata updates job metadata with a key-value pair\n    92→\tUpdateMetadata(job *schema.Job, key, val string) (err error)\n    93→}\n    94→\n    95→// JobClassTagger classifies jobs based on configurable rules that evaluate job metrics and properties.\n    96→// Rules are loaded from an external configuration directory and can be dynamically reloaded when files change.\n    97→// When a job matches a rule, it is tagged with the corresponding classification and an optional hint message.\n    98→type JobClassTagger struct {\n    99→\t// rules maps classification tags to their compiled rule information\n   100→\trules map[string]ruleInfo\n   101→\t// parameters are shared values (e.g., thresholds) used across multiple rules\n   102→\tparameters map[string]any\n   103→\t// tagType is the type of tag (\"jobClass\")\n   104→\ttagType string\n   105→\t// cfgPath is the path to watch for configuration changes\n   106→\tcfgPath string\n   107→\t// repo provides access to job database operations\n   108→\trepo JobRepository\n   109→\t// getStatistics retrieves job statistics for analysis\n   110→\tgetStatistics func(job *schema.Job) (map[string]schema.JobStatistics, error)\n   111→\t// getMetricConfig retrieves metric configuration (limits) for a cluster\n   112→\tgetMetricConfig func(cluster, subCluster string) map[string]*schema.Metric\n   113→}\n   114→\n   115→// roundEnv returns a copy of env with all float64 values rounded to 2 decimal places.\n   116→// Nested map[string]any and map[string]float64 values are recursed into.\n   117→func roundEnv(env map[string]any) map[string]any {\n   118→\trounded := make(map[string]any, len(env))\n   119→\tfor k, v := range env {\n   120→\t\tswitch val := v.(type) {\n   121→\t\tcase float64:\n   122→\t\t\trounded[k] = math.Round(val*100) / 100\n   123→\t\tcase map[string]any:\n   124→\t\t\trounded[k] = roundEnv(val)\n   125→\t\tcase map[string]float64:\n   126→\t\t\trm := make(map[string]float64, len(val))\n   127→\t\t\tfor mk, mv := range val {\n   128→\t\t\t\trm[mk] = math.Round(mv*100) / 100\n   129→\t\t\t}\n   130→\t\t\trounded[k] = rm\n   131→\t\tdefault:\n   132→\t\t\trounded[k] = v\n   133→\t\t}\n   134→\t}\n   135→\treturn rounded\n   136→}\n   137→\n   138→func (t *JobClassTagger) prepareRule(b []byte, fns string) {\n   139→\tvar rule RuleFormat\n   140→\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&rule); err != nil {\n   141→\t\tcclog.Warn(\"Error while decoding raw job meta json\")\n   142→\t\treturn\n   143→\t}\n   144→\n   145→\tri := ruleInfo{}\n   146→\tri.env = make(map[string]any)\n   147→\tri.metrics = make([]string, 0)\n   148→\tri.requirements = make([]*vm.Program, 0)\n   149→\tri.variables = make([]ruleVariable, 0)\n   150→\n   151→\t// check if all required parameters are available\n   152→\tfor _, p := range rule.Parameters {\n   153→\t\tparam, ok := t.parameters[p]\n   154→\t\tif !ok {\n   155→\t\t\tcclog.Warnf(\"prepareRule() > missing parameter %s in rule %s\", p, fns)\n   156→\t\t\treturn\n   157→\t\t}\n   158→\t\tri.env[p] = param\n   159→\t}\n   160→\n   161→\t// set all required metrics\n   162→\tri.metrics = append(ri.metrics, rule.Metrics...)\n   163→\n   164→\t// compile requirements\n   165→\tfor _, r := range rule.Requirements {\n   166→\t\treq, err := expr.Compile(r, expr.AsBool())\n   167→\t\tif err != nil {\n   168→\t\t\tcclog.Errorf(\"error compiling requirement %s: %#v\", r, err)\n   169→\t\t\treturn\n   170→\t\t}\n   171→\t\tri.requirements = append(ri.requirements, req)\n   172→\t}\n   173→\n   174→\t// compile variables\n   175→\tfor _, v := range rule.Variables {\n   176→\t\treq, err := expr.Compile(v.Expr, expr.AsFloat64())\n   177→\t\tif err != nil {\n   178→\t\t\tcclog.Errorf(\"error compiling requirement %s: %#v\", v.Name, err)\n   179→\t\t\treturn\n   180→\t\t}\n   181→\t\tri.variables = append(ri.variables, ruleVariable{name: v.Name, expr: req})\n   182→\t}\n   183→\n   184→\t// compile rule\n   185→\texp, err := expr.Compile(rule.Rule, expr.AsBool())\n   186→\tif err != nil {\n   187→\t\tcclog.Errorf(\"error compiling rule %s: %#v\", fns, err)\n   188→\t\treturn\n   189→\t}\n   190→\tri.rule = exp\n   191→\n   192→\t// prepare hint template\n   193→\tri.hint, err = template.New(fns).Parse(rule.Hint)\n   194→\tif err != nil {\n   195→\t\tcclog.Errorf(\"error processing template %s: %#v\", fns, err)\n   196→\t}\n   197→\tcclog.Infof(\"prepareRule() > processing %s with %d requirements and %d variables\", fns, len(ri.requirements), len(ri.variables))\n   198→\n   199→\tt.rules[rule.Tag] = ri\n   200→}\n   201→\n   202→// EventMatch checks if a filesystem event should trigger configuration reload.\n   203→// It returns true if the event path contains \"jobclasses\".\n   204→func (t *JobClassTagger) EventMatch(s string) bool {\n   205→\treturn strings.Contains(s, jobClassConfigDirMatch)\n   206→}\n   207→\n   208→// EventCallback is triggered when the configuration directory changes.\n   209→// It reloads parameters and all rule files from the watched directory.\n   210→// FIXME: Only process the file that caused the event\n   211→func (t *JobClassTagger) EventCallback() {\n   212→\tfiles, err := os.ReadDir(t.cfgPath)\n   213→\tif err != nil {\n   214→\t\tcclog.Fatal(err)\n   215→\t}\n   216→\n   217→\tt.rules = make(map[string]ruleInfo)\n   218→\n   219→\tparametersFile := filepath.Join(t.cfgPath, parametersFileName)\n   220→\tif util.CheckFileExists(parametersFile) {\n   221→\t\tcclog.Info(\"Merge parameters\")\n   222→\t\tb, err := os.ReadFile(parametersFile)\n   223→\t\tif err != nil {\n   224→\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n   225→\t\t}\n   226→\n   227→\t\tvar paramTmp map[string]any\n   228→\t\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&paramTmp); err != nil {\n   229→\t\t\tcclog.Warn(\"Error while decoding parameters.json\")\n   230→\t\t}\n   231→\n   232→\t\tmaps.Copy(t.parameters, paramTmp)\n   233→\t}\n   234→\n   235→\tfor _, fn := range files {\n   236→\t\tfns := fn.Name()\n   237→\t\tif fns != parametersFileName {\n   238→\t\t\tcclog.Debugf(\"Process: %s\", fns)\n   239→\t\t\tfilename := filepath.Join(t.cfgPath, fns)\n   240→\t\t\tb, err := os.ReadFile(filename)\n   241→\t\t\tif err != nil {\n   242→\t\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n   243→\t\t\t\tcontinue\n   244→\t\t\t}\n   245→\t\t\tt.prepareRule(b, fns)\n   246→\t\t}\n   247→\t}\n   248→}\n   249→\n   250→func (t *JobClassTagger) initParameters() error {\n   251→\tcclog.Info(\"Initialize parameters\")\n   252→\tparametersFile := filepath.Join(t.cfgPath, parametersFileName)\n   253→\tb, err := os.ReadFile(parametersFile)\n   254→\tif err != nil {\n   255→\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n   256→\t\treturn err\n   257→\t}\n   258→\n   259→\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&t.parameters); err != nil {\n   260→\t\tcclog.Warn(\"Error while decoding parameters.json\")\n   261→\t\treturn err\n   262→\t}\n   263→\n   264→\treturn nil\n   265→}\n   266→\n   267→// Register initializes the JobClassTagger by loading parameters and classification rules from external folder.\n   268→// It sets up a file watch on ./var/tagger/jobclasses if it exists, allowing for\n   269→// dynamic configuration updates without restarting the application.\n   270→// Returns an error if the configuration path does not exist or cannot be read.\n   271→func (t *JobClassTagger) Register() error {\n   272→\tif t.cfgPath == \"\" {\n   273→\t\tt.cfgPath = defaultJobClassConfigPath\n   274→\t}\n   275→\tt.tagType = tagTypeJobClass\n   276→\tt.rules = make(map[string]ruleInfo)\n   277→\n   278→\tif !util.CheckFileExists(t.cfgPath) {\n   279→\t\treturn fmt.Errorf(\"configuration path does not exist: %s\", t.cfgPath)\n   280→\t}\n   281→\n   282→\terr := t.initParameters()\n   283→\tif err != nil {\n   284→\t\tcclog.Warnf(\"error reading parameters.json: %v\", err)\n   285→\t\treturn err\n   286→\t}\n   287→\n   288→\tfiles, err := os.ReadDir(t.cfgPath)\n   289→\tif err != nil {\n   290→\t\treturn fmt.Errorf(\"error reading jobclasses folder: %#v\", err)\n   291→\t}\n   292→\n   293→\tfor _, fn := range files {\n   294→\t\tfns := fn.Name()\n   295→\t\tif fns != parametersFileName {\n   296→\t\t\tcclog.Infof(\"Process: %s\", fns)\n   297→\t\t\tfilename := filepath.Join(t.cfgPath, fns)\n   298→\n   299→\t\t\tb, err := os.ReadFile(filename)\n   300→\t\t\tif err != nil {\n   301→\t\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n   302→\t\t\t\tcontinue\n   303→\t\t\t}\n   304→\t\t\tt.prepareRule(b, fns)\n   305→\t\t}\n   306→\t}\n   307→\n   308→\tcclog.Infof(\"Setup file watch for %s\", t.cfgPath)\n   309→\tutil.AddListener(t.cfgPath, t)\n   310→\n   311→\tt.repo = repository.GetJobRepository()\n   312→\tt.getStatistics = archive.GetStatistics\n   313→\tt.getMetricConfig = archive.GetMetricConfigSubCluster\n   314→\n   315→\treturn nil\n   316→}\n   317→\n   318→// Match evaluates all classification rules against a job and applies matching tags.\n   319→// It retrieves job statistics and metric configurations, then tests each rule's requirements\n   320→// and main expression. For each matching rule, it:\n   321→//   - Applies the classification tag to the job\n   322→//   - Generates and stores a hint message based on the rule's template\n   323→//\n   324→// The function constructs an evaluation environment containing:\n   325→//   - Job properties (duration, cores, nodes, state, etc.)\n   326→//   - Metric statistics (min, max, avg) and their configured limits\n   327→//   - Shared parameters defined in parameters.json\n   328→//   - Computed variables from the rule definition\n   329→//\n   330→// Rules are evaluated in arbitrary order. Multiple rules can match and apply\n   331→// their tags to the same job. Hint messages from all matching rules are collected\n   332→// and stored as a combined message in the job metadata.\n   333→func (t *JobClassTagger) Match(job *schema.Job) {\n   334→\tjobStats, err := t.getStatistics(job)\n   335→\tmetricsList := t.getMetricConfig(job.Cluster, job.SubCluster)\n   336→\tcclog.Debugf(\"Enter match rule with %d rules for job %d\", len(t.rules), job.JobID)\n   337→\tif err != nil {\n   338→\t\tcclog.Errorf(\"job classification failed for job %d: %#v\", job.JobID, err)\n   339→\t\treturn\n   340→\t}\n   341→\n   342→\tid := *job.ID\n   343→\tvar messages []string\n   344→\n   345→\tfor tag, ri := range t.rules {\n   346→\t\tenv := make(map[string]any)\n   347→\t\tmaps.Copy(env, ri.env)\n   348→\t\tcclog.Debugf(\"Try to match rule %s for job %d\", tag, job.JobID)\n   349→\n   350→\t\t// Initialize environment\n   351→\t\tenv[\"job\"] = map[string]any{\n   352→\t\t\t\"shared\":   job.Shared,\n   353→\t\t\t\"duration\": job.Duration,\n   354→\t\t\t\"numCores\": job.NumHWThreads,\n   355→\t\t\t\"numNodes\": job.NumNodes,\n   356→\t\t\t\"jobState\": job.State,\n   357→\t\t\t\"numAcc\":   job.NumAcc,\n   358→\t\t\t\"smt\":      job.SMT,\n   359→\t\t}\n   360→\n   361→\t\t// add metrics to env\n   362→\t\tskipRule := false\n   363→\t\tfor _, m := range ri.metrics {\n   364→\t\t\tstats, ok := jobStats[m]\n   365→\t\t\tif !ok {\n   366→\t\t\t\tcclog.Errorf(\"job classification: missing metric '%s' for rule %s on job %d\", m, tag, job.JobID)\n   367→\t\t\t\tskipRule = true\n   368→\t\t\t\tbreak\n   369→\t\t\t}\n   370→\t\t\tenv[m] = map[string]any{\n   371→\t\t\t\t\"min\": stats.Min,\n   372→\t\t\t\t\"max\": stats.Max,\n   373→\t\t\t\t\"avg\": stats.Avg,\n   374→\t\t\t\t\"limits\": map[string]float64{\n   375→\t\t\t\t\t\"peak\":    metricsList[m].Peak,\n   376→\t\t\t\t\t\"normal\":  metricsList[m].Normal,\n   377→\t\t\t\t\t\"caution\": metricsList[m].Caution,\n   378→\t\t\t\t\t\"alert\":   metricsList[m].Alert,\n   379→\t\t\t\t},\n   380→\t\t\t}\n   381→\t\t}\n   382→\t\tif skipRule {\n   383→\t\t\tcontinue\n   384→\t\t}\n   385→\n   386→\t\t// check rule requirements apply\n   387→\t\trequirementsMet := true\n   388→\t\tfor _, r := range ri.requirements {\n   389→\t\t\tok, err := expr.Run(r, env)\n   390→\t\t\tif err != nil {\n   391→\t\t\t\tcclog.Errorf(\"error running requirement for rule %s: %#v\", tag, err)\n   392→\t\t\t\trequirementsMet = false\n   393→\t\t\t\tbreak\n   394→\t\t\t}\n   395→\t\t\tif !ok.(bool) {\n   396→\t\t\t\tcclog.Debugf(\"requirement for rule %s not met\", tag)\n   397→\t\t\t\trequirementsMet = false\n   398→\t\t\t\tbreak\n   399→\t\t\t}\n   400→\t\t}\n   401→\t\tif !requirementsMet {\n   402→\t\t\tcontinue\n   403→\t\t}\n   404→\n   405→\t\t// evaluate rule variables\n   406→\t\tvarError := false\n   407→\t\tfor _, v := range ri.variables {\n   408→\t\t\tvalue, err := expr.Run(v.expr, env)\n   409→\t\t\tif err != nil {\n   410→\t\t\t\tcclog.Errorf(\"error evaluating variable %s for rule %s: %#v\", v.name, tag, err)\n   411→\t\t\t\tvarError = true\n   412→\t\t\t\tbreak\n   413→\t\t\t}\n   414→\t\t\tenv[v.name] = value\n   415→\t\t}\n   416→\t\tif varError {\n   417→\t\t\tcontinue\n   418→\t\t}\n   419→\n   420→\t\tmatch, err := expr.Run(ri.rule, env)\n   421→\t\tif err != nil {\n   422→\t\t\tcclog.Errorf(\"error running rule %s: %#v\", tag, err)\n   423→\t\t\tcontinue\n   424→\t\t}\n   425→\t\tif match.(bool) {\n   426→\t\t\tif !t.repo.HasTag(id, t.tagType, tag) {\n   427→\t\t\t\tif _, err := t.repo.AddTagOrCreateDirect(id, t.tagType, tag); err != nil {\n   428→\t\t\t\t\tcclog.Errorf(\"failed to add tag '%s' to job %d: %v\", tag, id, err)\n   429→\t\t\t\t\tcontinue\n   430→\t\t\t\t}\n   431→\t\t\t}\n   432→\n   433→\t\t\t// process hint template\n   434→\t\t\tvar msg bytes.Buffer\n   435→\t\t\tif err := ri.hint.Execute(&msg, roundEnv(env)); err != nil {\n   436→\t\t\t\tcclog.Errorf(\"Template error: %s\", err.Error())\n   437→\t\t\t\tcontinue\n   438→\t\t\t}\n   439→\t\t\tmessages = append(messages, msg.String())\n   440→\t\t}\n   441→\t}\n   442→\n   443→\tif len(messages) > 0 {\n   444→\t\tcombined := strings.Join(messages, \"\\n\")\n   445→\t\tif err := t.repo.UpdateMetadata(job, \"message\", combined); err != nil {\n   446→\t\t\tcclog.Errorf(\"failed to update metadata for job %d: %v\", *job.ID, err)\n   447→\t\t}\n   448→\t}\n   449→}\n   450→\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"uuid":"4cf8e57d-0003-4877-af6f-c6c73596b172","timestamp":"2026-03-11T06:48:04.089Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/classifyJob.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 tagger\n\nimport (\n\t\"bytes\"\n\t\"encoding/json\"\n\t\"fmt\"\n\t\"maps\"\n\t\"math\"\n\t\"os\"\n\t\"path/filepath\"\n\t\"strings\"\n\t\"text/template\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\t\"github.com/ClusterCockpit/cc-backend/pkg/archive\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/util\"\n\t\"github.com/expr-lang/expr\"\n\t\"github.com/expr-lang/expr/vm\"\n)\n\nconst (\n\t// defaultJobClassConfigPath is the default path for job classification configuration\n\tdefaultJobClassConfigPath = \"./var/tagger/jobclasses\"\n\t// tagTypeJobClass is the tag type identifier for job classification tags\n\ttagTypeJobClass = \"jobClass\"\n\t// jobClassConfigDirMatch is the directory name used for matching filesystem events\n\tjobClassConfigDirMatch = \"jobclasses\"\n\t// parametersFileName is the name of the parameters configuration file\n\tparametersFileName = \"parameters.json\"\n)\n\n// Variable defines a named expression that can be computed and reused in rules.\n// Variables are evaluated before the main rule and their results are added to the environment.\ntype Variable struct {\n\t// Name is the variable identifier used in rule expressions\n\tName string `json:\"name\"`\n\t// Expr is the expression to evaluate (must return a numeric value)\n\tExpr string `json:\"expr\"`\n}\n\ntype ruleVariable struct {\n\tname string\n\texpr *vm.Program\n}\n\n// RuleFormat defines the JSON structure for job classification rules.\n// Each rule specifies requirements, metrics to analyze, variables to compute,\n// and the final rule expression that determines if the job matches the classification.\ntype RuleFormat struct {\n\t// Name is a human-readable description of the rule\n\tName string `json:\"name\"`\n\t// Tag is the classification tag to apply if the rule matches\n\tTag string `json:\"tag\"`\n\t// Parameters are shared values referenced in the rule (e.g., thresholds)\n\tParameters []string `json:\"parameters\"`\n\t// Metrics are the job metrics required for this rule (e.g., \"cpu_load\", \"mem_used\")\n\tMetrics []string `json:\"metrics\"`\n\t// Requirements are boolean expressions that must be true for the rule to apply\n\tRequirements []string `json:\"requirements\"`\n\t// Variables are computed values used in the rule expression\n\tVariables []Variable `json:\"variables\"`\n\t// Rule is the boolean expression that determines if the job matches\n\tRule string `json:\"rule\"`\n\t// Hint is a template string that generates a message when the rule matches\n\tHint string `json:\"hint\"`\n}\n\ntype ruleInfo struct {\n\tenv          map[string]any\n\tmetrics      []string\n\trequirements []*vm.Program\n\tvariables    []ruleVariable\n\trule         *vm.Program\n\thint         *template.Template\n}\n\n// JobRepository defines the interface for job database operations needed by the tagger.\n// This interface allows for easier testing and decoupling from the concrete repository implementation.\ntype JobRepository interface {\n\t// HasTag checks if a job already has a specific tag\n\tHasTag(jobID int64, tagType string, tagName string) bool\n\t// AddTagOrCreateDirect adds a tag to a job or creates it if it doesn't exist\n\tAddTagOrCreateDirect(jobID int64, tagType string, tagName string) (tagID int64, err error)\n\t// UpdateMetadata updates job metadata with a key-value pair\n\tUpdateMetadata(job *schema.Job, key, val string) (err error)\n}\n\n// JobClassTagger classifies jobs based on configurable rules that evaluate job metrics and properties.\n// Rules are loaded from an external configuration directory and can be dynamically reloaded when files change.\n// When a job matches a rule, it is tagged with the corresponding classification and an optional hint message.\ntype JobClassTagger struct {\n\t// rules maps classification tags to their compiled rule information\n\trules map[string]ruleInfo\n\t// parameters are shared values (e.g., thresholds) used across multiple rules\n\tparameters map[string]any\n\t// tagType is the type of tag (\"jobClass\")\n\ttagType string\n\t// cfgPath is the path to watch for configuration changes\n\tcfgPath string\n\t// repo provides access to job database operations\n\trepo JobRepository\n\t// getStatistics retrieves job statistics for analysis\n\tgetStatistics func(job *schema.Job) (map[string]schema.JobStatistics, error)\n\t// getMetricConfig retrieves metric configuration (limits) for a cluster\n\tgetMetricConfig func(cluster, subCluster string) map[string]*schema.Metric\n}\n\n// roundEnv returns a copy of env with all float64 values rounded to 2 decimal places.\n// Nested map[string]any and map[string]float64 values are recursed into.\nfunc roundEnv(env map[string]any) map[string]any {\n\trounded := make(map[string]any, len(env))\n\tfor k, v := range env {\n\t\tswitch val := v.(type) {\n\t\tcase float64:\n\t\t\trounded[k] = math.Round(val*100) / 100\n\t\tcase map[string]any:\n\t\t\trounded[k] = roundEnv(val)\n\t\tcase map[string]float64:\n\t\t\trm := make(map[string]float64, len(val))\n\t\t\tfor mk, mv := range val {\n\t\t\t\trm[mk] = math.Round(mv*100) / 100\n\t\t\t}\n\t\t\trounded[k] = rm\n\t\tdefault:\n\t\t\trounded[k] = v\n\t\t}\n\t}\n\treturn rounded\n}\n\nfunc (t *JobClassTagger) prepareRule(b []byte, fns string) {\n\tvar rule RuleFormat\n\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&rule); err != nil {\n\t\tcclog.Warn(\"Error while decoding raw job meta json\")\n\t\treturn\n\t}\n\n\tri := ruleInfo{}\n\tri.env = make(map[string]any)\n\tri.metrics = make([]string, 0)\n\tri.requirements = make([]*vm.Program, 0)\n\tri.variables = make([]ruleVariable, 0)\n\n\t// check if all required parameters are available\n\tfor _, p := range rule.Parameters {\n\t\tparam, ok := t.parameters[p]\n\t\tif !ok {\n\t\t\tcclog.Warnf(\"prepareRule() > missing parameter %s in rule %s\", p, fns)\n\t\t\treturn\n\t\t}\n\t\tri.env[p] = param\n\t}\n\n\t// set all required metrics\n\tri.metrics = append(ri.metrics, rule.Metrics...)\n\n\t// compile requirements\n\tfor _, r := range rule.Requirements {\n\t\treq, err := expr.Compile(r, expr.AsBool())\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"error compiling requirement %s: %#v\", r, err)\n\t\t\treturn\n\t\t}\n\t\tri.requirements = append(ri.requirements, req)\n\t}\n\n\t// compile variables\n\tfor _, v := range rule.Variables {\n\t\treq, err := expr.Compile(v.Expr, expr.AsFloat64())\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"error compiling requirement %s: %#v\", v.Name, err)\n\t\t\treturn\n\t\t}\n\t\tri.variables = append(ri.variables, ruleVariable{name: v.Name, expr: req})\n\t}\n\n\t// compile rule\n\texp, err := expr.Compile(rule.Rule, expr.AsBool())\n\tif err != nil {\n\t\tcclog.Errorf(\"error compiling rule %s: %#v\", fns, err)\n\t\treturn\n\t}\n\tri.rule = exp\n\n\t// prepare hint template\n\tri.hint, err = template.New(fns).Parse(rule.Hint)\n\tif err != nil {\n\t\tcclog.Errorf(\"error processing template %s: %#v\", fns, err)\n\t}\n\tcclog.Infof(\"prepareRule() > processing %s with %d requirements and %d variables\", fns, len(ri.requirements), len(ri.variables))\n\n\tt.rules[rule.Tag] = ri\n}\n\n// EventMatch checks if a filesystem event should trigger configuration reload.\n// It returns true if the event path contains \"jobclasses\".\nfunc (t *JobClassTagger) EventMatch(s string) bool {\n\treturn strings.Contains(s, jobClassConfigDirMatch)\n}\n\n// EventCallback is triggered when the configuration directory changes.\n// It reloads parameters and all rule files from the watched directory.\n// FIXME: Only process the file that caused the event\nfunc (t *JobClassTagger) EventCallback() {\n\tfiles, err := os.ReadDir(t.cfgPath)\n\tif err != nil {\n\t\tcclog.Fatal(err)\n\t}\n\n\tt.rules = make(map[string]ruleInfo)\n\n\tparametersFile := filepath.Join(t.cfgPath, parametersFileName)\n\tif util.CheckFileExists(parametersFile) {\n\t\tcclog.Info(\"Merge parameters\")\n\t\tb, err := os.ReadFile(parametersFile)\n\t\tif err != nil {\n\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n\t\t}\n\n\t\tvar paramTmp map[string]any\n\t\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&paramTmp); err != nil {\n\t\t\tcclog.Warn(\"Error while decoding parameters.json\")\n\t\t}\n\n\t\tmaps.Copy(t.parameters, paramTmp)\n\t}\n\n\tfor _, fn := range files {\n\t\tfns := fn.Name()\n\t\tif fns != parametersFileName {\n\t\t\tcclog.Debugf(\"Process: %s\", fns)\n\t\t\tfilename := filepath.Join(t.cfgPath, fns)\n\t\t\tb, err := os.ReadFile(filename)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tt.prepareRule(b, fns)\n\t\t}\n\t}\n}\n\nfunc (t *JobClassTagger) initParameters() error {\n\tcclog.Info(\"Initialize parameters\")\n\tparametersFile := filepath.Join(t.cfgPath, parametersFileName)\n\tb, err := os.ReadFile(parametersFile)\n\tif err != nil {\n\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n\t\treturn err\n\t}\n\n\tif err := json.NewDecoder(bytes.NewReader(b)).Decode(&t.parameters); err != nil {\n\t\tcclog.Warn(\"Error while decoding parameters.json\")\n\t\treturn err\n\t}\n\n\treturn nil\n}\n\n// Register initializes the JobClassTagger by loading parameters and classification rules from external folder.\n// It sets up a file watch on ./var/tagger/jobclasses if it exists, allowing for\n// dynamic configuration updates without restarting the application.\n// Returns an error if the configuration path does not exist or cannot be read.\nfunc (t *JobClassTagger) Register() error {\n\tif t.cfgPath == \"\" {\n\t\tt.cfgPath = defaultJobClassConfigPath\n\t}\n\tt.tagType = tagTypeJobClass\n\tt.rules = make(map[string]ruleInfo)\n\n\tif !util.CheckFileExists(t.cfgPath) {\n\t\treturn fmt.Errorf(\"configuration path does not exist: %s\", t.cfgPath)\n\t}\n\n\terr := t.initParameters()\n\tif err != nil {\n\t\tcclog.Warnf(\"error reading parameters.json: %v\", err)\n\t\treturn err\n\t}\n\n\tfiles, err := os.ReadDir(t.cfgPath)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error reading jobclasses folder: %#v\", err)\n\t}\n\n\tfor _, fn := range files {\n\t\tfns := fn.Name()\n\t\tif fns != parametersFileName {\n\t\t\tcclog.Infof(\"Process: %s\", fns)\n\t\t\tfilename := filepath.Join(t.cfgPath, fns)\n\n\t\t\tb, err := os.ReadFile(filename)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Warnf(\"prepareRule() > open file error: %v\", err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tt.prepareRule(b, fns)\n\t\t}\n\t}\n\n\tcclog.Infof(\"Setup file watch for %s\", t.cfgPath)\n\tutil.AddListener(t.cfgPath, t)\n\n\tt.repo = repository.GetJobRepository()\n\tt.getStatistics = archive.GetStatistics\n\tt.getMetricConfig = archive.GetMetricConfigSubCluster\n\n\treturn nil\n}\n\n// Match evaluates all classification rules against a job and applies matching tags.\n// It retrieves job statistics and metric configurations, then tests each rule's requirements\n// and main expression. For each matching rule, it:\n//   - Applies the classification tag to the job\n//   - Generates and stores a hint message based on the rule's template\n//\n// The function constructs an evaluation environment containing:\n//   - Job properties (duration, cores, nodes, state, etc.)\n//   - Metric statistics (min, max, avg) and their configured limits\n//   - Shared parameters defined in parameters.json\n//   - Computed variables from the rule definition\n//\n// Rules are evaluated in arbitrary order. Multiple rules can match and apply\n// their tags to the same job. Hint messages from all matching rules are collected\n// and stored as a combined message in the job metadata.\nfunc (t *JobClassTagger) Match(job *schema.Job) {\n\tjobStats, err := t.getStatistics(job)\n\tmetricsList := t.getMetricConfig(job.Cluster, job.SubCluster)\n\tcclog.Debugf(\"Enter match rule with %d rules for job %d\", len(t.rules), job.JobID)\n\tif err != nil {\n\t\tcclog.Errorf(\"job classification failed for job %d: %#v\", job.JobID, err)\n\t\treturn\n\t}\n\n\tid := *job.ID\n\tvar messages []string\n\n\tfor tag, ri := range t.rules {\n\t\tenv := make(map[string]any)\n\t\tmaps.Copy(env, ri.env)\n\t\tcclog.Debugf(\"Try to match rule %s for job %d\", tag, job.JobID)\n\n\t\t// Initialize environment\n\t\tenv[\"job\"] = map[string]any{\n\t\t\t\"shared\":   job.Shared,\n\t\t\t\"duration\": job.Duration,\n\t\t\t\"numCores\": job.NumHWThreads,\n\t\t\t\"numNodes\": job.NumNodes,\n\t\t\t\"jobState\": job.State,\n\t\t\t\"numAcc\":   job.NumAcc,\n\t\t\t\"smt\":      job.SMT,\n\t\t}\n\n\t\t// add metrics to env\n\t\tskipRule := false\n\t\tfor _, m := range ri.metrics {\n\t\t\tstats, ok := jobStats[m]\n\t\t\tif !ok {\n\t\t\t\tcclog.Errorf(\"job classification: missing metric '%s' for rule %s on job %d\", m, tag, job.JobID)\n\t\t\t\tskipRule = true\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tenv[m] = map[string]any{\n\t\t\t\t\"min\": stats.Min,\n\t\t\t\t\"max\": stats.Max,\n\t\t\t\t\"avg\": stats.Avg,\n\t\t\t\t\"limits\": map[string]float64{\n\t\t\t\t\t\"peak\":    metricsList[m].Peak,\n\t\t\t\t\t\"normal\":  metricsList[m].Normal,\n\t\t\t\t\t\"caution\": metricsList[m].Caution,\n\t\t\t\t\t\"alert\":   metricsList[m].Alert,\n\t\t\t\t},\n\t\t\t}\n\t\t}\n\t\tif skipRule {\n\t\t\tcontinue\n\t\t}\n\n\t\t// check rule requirements apply\n\t\trequirementsMet := true\n\t\tfor _, r := range ri.requirements {\n\t\t\tok, err := expr.Run(r, env)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"error running requirement for rule %s: %#v\", tag, err)\n\t\t\t\trequirementsMet = false\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tif !ok.(bool) {\n\t\t\t\tcclog.Debugf(\"requirement for rule %s not met\", tag)\n\t\t\t\trequirementsMet = false\n\t\t\t\tbreak\n\t\t\t}\n\t\t}\n\t\tif !requirementsMet {\n\t\t\tcontinue\n\t\t}\n\n\t\t// evaluate rule variables\n\t\tvarError := false\n\t\tfor _, v := range ri.variables {\n\t\t\tvalue, err := expr.Run(v.expr, env)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"error evaluating variable %s for rule %s: %#v\", v.name, tag, err)\n\t\t\t\tvarError = true\n\t\t\t\tbreak\n\t\t\t}\n\t\t\tenv[v.name] = value\n\t\t}\n\t\tif varError {\n\t\t\tcontinue\n\t\t}\n\n\t\tmatch, err := expr.Run(ri.rule, env)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"error running rule %s: %#v\", tag, err)\n\t\t\tcontinue\n\t\t}\n\t\tif match.(bool) {\n\t\t\tif !t.repo.HasTag(id, t.tagType, tag) {\n\t\t\t\tif _, err := t.repo.AddTagOrCreateDirect(id, t.tagType, tag); err != nil {\n\t\t\t\t\tcclog.Errorf(\"failed to add tag '%s' to job %d: %v\", tag, id, err)\n\t\t\t\t\tcontinue\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// process hint template\n\t\t\tvar msg bytes.Buffer\n\t\t\tif err := ri.hint.Execute(&msg, roundEnv(env)); err != nil {\n\t\t\t\tcclog.Errorf(\"Template error: %s\", err.Error())\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tmessages = append(messages, msg.String())\n\t\t}\n\t}\n\n\tif len(messages) > 0 {\n\t\tcombined := strings.Join(messages, \"\\n\")\n\t\tif err := t.repo.UpdateMetadata(job, \"message\", combined); err != nil {\n\t\t\tcclog.Errorf(\"failed to update metadata for job %d: %v\", *job.ID, err)\n\t\t}\n\t}\n}\n","numLines":450,"startLine":1,"totalLines":450}},"sourceToolAssistantUUID":"583373e5-e372-4714-aa2f-11daa3ea068d"}
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{"parentUuid":"7bff4efc-c3b2-4d89-adfa-7dfa4f9f812d","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","message":{"model":"claude-sonnet-4-6","id":"msg_018dPydspaHqAhvVQgbfZrTw","type":"message","role":"assistant","content":[{"type":"text","text":"Found the bug. In `newTagger()` (tagger.go:67-84), taggers are appended to the slices **before** `Register()` is called. When `Register()` fails (directory missing), the tagger stays in the slice with uninitialized fields (`t.repo`, `t.getStatistics`, `t.getMetricConfig` are all `nil`). When `Match()` is subsequently called, it dereferences these nil function pointers at `classifyJob.go:334-335`, causing the segfault.\n\nThe fix is to register each tagger first, and only add it to the slice if registration succeeds:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":9350,"cache_read_input_tokens":21455,"cache_creation":{"ephemeral_5m_input_tokens":9350,"ephemeral_1h_input_tokens":0},"output_tokens":8,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYvqzAPWaZV9XXxQ8BjeH","type":"assistant","uuid":"e5b8d0b1-c696-49d2-8243-5e72e53608bb","timestamp":"2026-03-11T06:48:23.022Z"}
{"parentUuid":"e5b8d0b1-c696-49d2-8243-5e72e53608bb","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","message":{"model":"claude-sonnet-4-6","id":"msg_018dPydspaHqAhvVQgbfZrTw","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01DcaR8UGaFkX6Vi8LArtMP4","name":"Edit","input":{"replace_all":false,"file_path":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/tagger.go","old_string":"func newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})\n\n\tfor _, tagger := range jobTagger.startTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t}\n\t}\n\tfor _, tagger := range jobTagger.stopTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t}\n\t}\n}","new_string":"func newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\n\tfor _, t := range []Tagger{&AppTagger{}} {\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t} else {\n\t\t\tjobTagger.startTaggers = append(jobTagger.startTaggers, t)\n\t\t}\n\t}\n\tfor _, t := range []Tagger{&JobClassTagger{}} {\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t} else {\n\t\t\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, t)\n\t\t}\n\t}\n}"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":9350,"cache_read_input_tokens":21455,"output_tokens":1407,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":9350},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYvqzAPWaZV9XXxQ8BjeH","type":"assistant","uuid":"d69e40ee-030b-47df-9127-d83b79528be5","timestamp":"2026-03-11T06:48:24.788Z"}
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{"parentUuid":"d69e40ee-030b-47df-9127-d83b79528be5","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"progress","data":{"type":"hook_progress","hookEvent":"PostToolUse","hookName":"PostToolUse:Edit","command":"callback"},"parentToolUseID":"toolu_01DcaR8UGaFkX6Vi8LArtMP4","toolUseID":"toolu_01DcaR8UGaFkX6Vi8LArtMP4","timestamp":"2026-03-11T06:48:24.799Z","uuid":"3cdf268d-369d-4b35-9d81-17717ad943f9"}
{"parentUuid":"d69e40ee-030b-47df-9127-d83b79528be5","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DcaR8UGaFkX6Vi8LArtMP4","type":"tool_result","content":"The file /Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/tagger.go has been updated successfully."}]},"uuid":"6b8d092a-f4dc-4eff-ae47-5660985a4908","timestamp":"2026-03-11T06:48:24.799Z","toolUseResult":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/tagger/tagger.go","oldString":"func newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})\n\n\tfor _, tagger := range jobTagger.startTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t}\n\t}\n\tfor _, tagger := range jobTagger.stopTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t}\n\t}\n}","newString":"func newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\n\tfor _, t := range []Tagger{&AppTagger{}} {\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t} else {\n\t\t\tjobTagger.startTaggers = append(jobTagger.startTaggers, t)\n\t\t}\n\t}\n\tfor _, t := range []Tagger{&JobClassTagger{}} {\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t} else {\n\t\t\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, t)\n\t\t}\n\t}\n}","originalFile":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\n// Package tagger provides automatic job tagging functionality for cc-backend.\n// It supports detecting applications and classifying jobs based on configurable rules.\n// Tags are automatically applied when jobs start or stop, or can be applied retroactively\n// to existing jobs using RunTaggers.\npackage tagger\n\nimport (\n\t\"fmt\"\n\t\"sync\"\n\n\t\"github.com/ClusterCockpit/cc-backend/internal/repository\"\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/ClusterCockpit/cc-lib/v2/schema\"\n)\n\n// Tagger is the interface that must be implemented by all tagging components.\n// Taggers can be registered at job start or stop events to automatically apply tags.\ntype Tagger interface {\n\t// Register initializes the tagger and loads any required configuration.\n\t// It should be called once before the tagger is used.\n\tRegister() error\n\n\t// Match evaluates the tagger's rules against a job and applies appropriate tags.\n\t// It is called for each job that needs to be evaluated.\n\tMatch(job *schema.Job)\n}\n\n// TaggerInfo holds metadata about a tagger for JSON serialization.\ntype TaggerInfo struct {\n\tName    string `json:\"name\"`\n\tType    string `json:\"type\"`\n\tRunning bool   `json:\"running\"`\n}\n\nvar (\n\tinitOnce     sync.Once\n\tjobTagger    *JobTagger\n\tstatusMu     sync.Mutex\n\ttaggerStatus = map[string]bool{}\n)\n\n// Known tagger definitions: name -> (type, factory)\ntype taggerDef struct {\n\tttype   string\n\tfactory func() Tagger\n}\n\nvar knownTaggers = map[string]taggerDef{\n\t\"AppTagger\":      {ttype: \"start\", factory: func() Tagger { return &AppTagger{} }},\n\t\"JobClassTagger\": {ttype: \"stop\", factory: func() Tagger { return &JobClassTagger{} }},\n}\n\n// JobTagger coordinates multiple taggers that run at different job lifecycle events.\n// It maintains separate lists of taggers that run when jobs start and when they stop.\ntype JobTagger struct {\n\t// startTaggers are applied when a job starts (e.g., application detection)\n\tstartTaggers []Tagger\n\t// stopTaggers are applied when a job completes (e.g., job classification)\n\tstopTaggers []Tagger\n}\n\nfunc newTagger() {\n\tjobTagger = &JobTagger{}\n\tjobTagger.startTaggers = make([]Tagger, 0)\n\tjobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})\n\tjobTagger.stopTaggers = make([]Tagger, 0)\n\tjobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})\n\n\tfor _, tagger := range jobTagger.startTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register start tagger: %s\", err)\n\t\t}\n\t}\n\tfor _, tagger := range jobTagger.stopTaggers {\n\t\tif err := tagger.Register(); err != nil {\n\t\t\tcclog.Errorf(\"failed to register stop tagger: %s\", err)\n\t\t}\n\t}\n}\n\n// Init initializes the job tagger system and registers it with the job repository.\n// This function is safe to call multiple times; initialization only occurs once.\n// It should be called during application startup.\nfunc Init() {\n\tinitOnce.Do(func() {\n\t\tnewTagger()\n\t\trepository.RegisterJobHook(jobTagger)\n\t})\n}\n\n// JobStartCallback is called when a job starts.\n// It runs all registered start taggers (e.g., application detection) on the job.\nfunc (jt *JobTagger) JobStartCallback(job *schema.Job) {\n\tfor _, tagger := range jt.startTaggers {\n\t\ttagger.Match(job)\n\t}\n}\n\n// JobStopCallback is called when a job completes.\n// It runs all registered stop taggers (e.g., job classification) on the job.\nfunc (jt *JobTagger) JobStopCallback(job *schema.Job) {\n\tfor _, tagger := range jt.stopTaggers {\n\t\ttagger.Match(job)\n\t}\n}\n\n// ListTaggers returns information about all known taggers with their current running status.\nfunc ListTaggers() []TaggerInfo {\n\tstatusMu.Lock()\n\tdefer statusMu.Unlock()\n\n\tresult := make([]TaggerInfo, 0, len(knownTaggers))\n\tfor name, def := range knownTaggers {\n\t\tresult = append(result, TaggerInfo{\n\t\t\tName:    name,\n\t\t\tType:    def.ttype,\n\t\t\tRunning: taggerStatus[name],\n\t\t})\n\t}\n\treturn result\n}\n\n// RunTaggerByName starts a tagger by name asynchronously on all jobs.\n// Returns an error if the name is unknown or the tagger is already running.\nfunc RunTaggerByName(name string) error {\n\tdef, ok := knownTaggers[name]\n\tif !ok {\n\t\treturn fmt.Errorf(\"unknown tagger: %s\", name)\n\t}\n\n\tstatusMu.Lock()\n\tif taggerStatus[name] {\n\t\tstatusMu.Unlock()\n\t\treturn fmt.Errorf(\"tagger %s is already running\", name)\n\t}\n\ttaggerStatus[name] = true\n\tstatusMu.Unlock()\n\n\tgo func() {\n\t\tdefer func() {\n\t\t\tstatusMu.Lock()\n\t\t\ttaggerStatus[name] = false\n\t\t\tstatusMu.Unlock()\n\t\t}()\n\n\t\tt := def.factory()\n\t\tif err := t.Register(); err != nil {\n\t\t\tcclog.Errorf(\"Failed to register tagger %s: %s\", name, err)\n\t\t\treturn\n\t\t}\n\n\t\tr := repository.GetJobRepository()\n\t\tjl, err := r.GetJobList(0, 0)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"Error getting job list for tagger %s: %s\", name, err)\n\t\t\treturn\n\t\t}\n\n\t\tcclog.Infof(\"Running tagger %s on %d jobs\", name, len(jl))\n\t\tfor _, id := range jl {\n\t\t\tjob, err := r.FindByIDDirect(id)\n\t\t\tif err != nil {\n\t\t\t\tcclog.Errorf(\"Error getting job %d for tagger %s: %s\", id, name, err)\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tt.Match(job)\n\t\t}\n\t\tcclog.Infof(\"Tagger %s completed\", name)\n\t}()\n\n\treturn nil\n}\n\n// RunTaggers applies all configured taggers to all existing jobs in the repository.\n// This is useful for retroactively applying tags to jobs that were created before\n// the tagger system was initialized or when new tagging rules are added.\n// It fetches all jobs and runs both start and stop taggers on each one.\nfunc RunTaggers() error {\n\tnewTagger()\n\tr := repository.GetJobRepository()\n\tjl, err := r.GetJobList(0, 0) // 0 limit means get all jobs (no pagination)\n\tif err != nil {\n\t\tcclog.Errorf(\"Error while getting job list %s\", err)\n\t\treturn err\n\t}\n\n\tfor _, id := range jl {\n\t\tjob, err := r.FindByIDDirect(id)\n\t\tif err != nil {\n\t\t\tcclog.Errorf(\"Error while getting job %s\", err)\n\t\t\treturn err\n\t\t}\n\t\tfor _, tagger := range jobTagger.startTaggers {\n\t\t\ttagger.Match(job)\n\t\t}\n\t\tfor _, tagger := range jobTagger.stopTaggers {\n\t\t\tcclog.Infof(\"Run stop tagger for job %d\", *job.ID)\n\t\t\ttagger.Match(job)\n\t\t}\n\t}\n\treturn nil\n}\n","structuredPatch":[{"oldStart":67,"oldLines":18,"newStart":67,"newLines":20,"lines":[" func newTagger() {","   jobTagger = &JobTagger{}","   jobTagger.startTaggers = make([]Tagger, 0)","-  jobTagger.startTaggers = append(jobTagger.startTaggers, &AppTagger{})","   jobTagger.stopTaggers = make([]Tagger, 0)","-  jobTagger.stopTaggers = append(jobTagger.stopTaggers, &JobClassTagger{})"," ","-  for _, tagger := range jobTagger.startTaggers {","-    if err := tagger.Register(); err != nil {","+  for _, t := range []Tagger{&AppTagger{}} {","+    if err := t.Register(); err != nil {","       cclog.Errorf(\"failed to register start tagger: %s\", err)","+    } else {","+      jobTagger.startTaggers = append(jobTagger.startTaggers, t)","     }","   }","-  for _, tagger := range jobTagger.stopTaggers {","-    if err := tagger.Register(); err != nil {","+  for _, t := range []Tagger{&JobClassTagger{}} {","+    if err := t.Register(); err != nil {","       cclog.Errorf(\"failed to register stop tagger: %s\", err)","+    } else {","+      jobTagger.stopTaggers = append(jobTagger.stopTaggers, t)","     }","   }"," }"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"d69e40ee-030b-47df-9127-d83b79528be5"}
{"parentUuid":"6b8d092a-f4dc-4eff-ae47-5660985a4908","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","message":{"model":"claude-sonnet-4-6","id":"msg_0182CYdnzo5mAqBuM1hGEmvA","type":"message","role":"assistant","content":[{"type":"text","text":"Now verify the fix compiles:"}],"stop_reason":null,"stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1458,"cache_read_input_tokens":30805,"cache_creation":{"ephemeral_5m_input_tokens":1458,"ephemeral_1h_input_tokens":0},"output_tokens":2,"service_tier":"standard","inference_geo":"not_available"}},"requestId":"req_011CYvr1gxZeNBp3XmVxfxvL","type":"assistant","uuid":"6344bc9d-c316-4062-bbcf-2f3ee79f3274","timestamp":"2026-03-11T06:48:26.828Z"}
{"parentUuid":"6344bc9d-c316-4062-bbcf-2f3ee79f3274","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","message":{"model":"claude-sonnet-4-6","id":"msg_0182CYdnzo5mAqBuM1hGEmvA","type":"message","role":"assistant","content":[{"type":"tool_use","id":"toolu_01L7YyfCy7DK7pUys2bzRMP3","name":"Bash","input":{"command":"go build ./internal/tagger/...","description":"Build tagger package"},"caller":{"type":"direct"}}],"stop_reason":"tool_use","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":1458,"cache_read_input_tokens":30805,"output_tokens":106,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":1458},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYvr1gxZeNBp3XmVxfxvL","type":"assistant","uuid":"ed9b7f9c-5b43-451e-b138-1a22bf3220d1","timestamp":"2026-03-11T06:48:27.354Z"}
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{"parentUuid":"e4520888-23bf-4736-9522-f58a7a7cb6d2","isSidechain":false,"userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"ac43c90b-5a96-48c4-893e-7c737c2c1c84","version":"2.1.72","gitBranch":"hotfix","slug":"happy-percolating-snowflake","message":{"model":"claude-sonnet-4-6","id":"msg_01Tus2nLv16aKMjC6x5eEjKG","type":"message","role":"assistant","content":[{"type":"text","text":"Builds cleanly. \n\n**Root cause:** Taggers were appended to the slices unconditionally, then `Register()` was called. A failed registration (missing directory) left `JobClassTagger.repo`, `.getStatistics`, and `.getMetricConfig` as `nil`. The next `Match()` call dereferenced those nil function pointers → segfault.\n\n**Fix:** Register each tagger first; only append it to the active slice on success. Failed taggers are logged and skipped."}],"stop_reason":"end_turn","stop_sequence":null,"usage":{"input_tokens":1,"cache_creation_input_tokens":207,"cache_read_input_tokens":32263,"output_tokens":117,"server_tool_use":{"web_search_requests":0,"web_fetch_requests":0},"service_tier":"standard","cache_creation":{"ephemeral_1h_input_tokens":0,"ephemeral_5m_input_tokens":207},"inference_geo":"","iterations":[],"speed":"standard"}},"requestId":"req_011CYvr212FnTw8P8oUH2Xtn","type":"assistant","uuid":"e5445a72-e119-4f17-8b13-1ba4d0fef780","timestamp":"2026-03-11T06:48:32.676Z"}
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