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Cluster information is now derived from the job archive.\n    56→- **`apiAllowedIPs` is now optional**: If not specified, defaults to not\n    57→  restricted.\n    58→\n    59→### Architecture changes\n    60→\n    61→- **Web framework replaced**: Migrated from `gorilla/mux` to `chi` as the HTTP\n    62→  router. This should be transparent to users but affects how middleware and\n    63→  routes are composed. A proper 404 handler is now in place.\n    64→- **MetricStore moved**: The `metricstore` package has been moved from `internal/`\n    65→  to `pkg/` as it is now part of the public API.\n    66→- **MySQL/MariaDB support removed**: Only SQLite is now supported as the database backend.\n    67→- **Archive to Cleanup renaming**: Archive-related functions have been refactored\n    68→  and renamed to \"Cleanup\" for clarity.\n    69→- **`minRunningFor` filter removed**: This undocumented filter has been removed\n    70→  from the API and frontend.\n    71→\n    72→### Dependency changes\n    73→\n    74→- **cc-lib v2.8.0**: Switched to cc-lib version 2 with updated APIs\n    75→- **cclib NATS client**: Now using the cclib NATS client implementation\n    76→- Removed obsolete `util.Float` usage from cclib\n    77→\n    78→## Major new features\n    79→\n    80→### NATS API Integration\n    81→\n    82→- **Real-time job events**: Subscribe to job start/stop events via NATS\n    83→- **Node state updates**: Receive real-time node state changes via NATS\n    84→- **Configurable subjects**: NATS API subjects are now configurable via `api-subjects`\n    85→- **Deadlock fixes**: Improved NATS client stability and graceful shutdown\n    86→\n    87→### Public Dashboard\n    88→\n    89→- **Public-facing interface**: New public dashboard route for external users\n    90→- **DoubleMetricPlot component**: New visualization component for comparing metrics\n    91→- **Improved layout**: Reviewed and optimized dashboard layouts for better readability\n    92→\n    93→### Enhanced Node Management\n    94→\n    95→- **Node state tracking**: New node table in database with timestamp tracking\n    96→- **Node state filtering**: Filter jobs by node state in systems view\n    97→- **Node list enhancements**: Improved paging, filtering, and continuous scroll support\n    98→- **Nodestate retention and archiving**: Node state data is now subject to configurable\n    99→  retention policies and can be archived to Parquet format for long-term storage\n   100→- **Faulty node metric tracking**: Faulty node state metric lists are persisted to the database\n   101→\n   102→### Health Monitoring\n   103→\n   104→- **Health status dashboard**: New dedicated \"Health\" tab in the status details view\n   105→  showing per-node metric health across the cluster\n   106→- **CCMS health check**: Support for querying health status of external\n   107→  cc-metric-store (CCMS) instances via the API\n   108→- **GraphQL health endpoints**: New GraphQL queries and resolvers for health data\n   109→- **Cluster/subcluster filter**: Filter health status view by cluster or subcluster\n   110→\n   111→### Log Viewer\n   112→\n   113→- **Web-based log viewer**: New log viewer page in the admin interface for inspecting\n   114→  backend log output directly from the browser without shell access\n   115→- **Accessible from header**: Quick access link from the navigation header\n   116→\n   117→### MetricStore Improvements\n   118→\n   119→- **Memory tracking worker**: New worker for CCMS memory usage tracking\n   120→- **Dynamic retention**: Support for job specific dynamic retention times\n   121→- **Improved compression**: Transparent compression for job archive imports\n   122→- **Parallel processing**: Parallelized Iter function in all archive backends\n   123→\n   124→### Job Tagging System\n   125→\n   126→- **Job tagger option**: Enable automatic job tagging via configuration flag\n   127→- **Application detection**: Automatic detection of applications (MATLAB, GROMACS, etc.)\n   128→- **Job classification**: Automatic detection of pathological jobs\n   129→- **omit-tagged**: Option to exclude tagged jobs from retention/cleanup operations (`none`, `all`, or `user`)\n   130→- **Admin UI trigger**: Taggers can be run on-demand from the admin web interface\n   131→  without restarting the backend\n   132→\n   133→### Archive Backends\n   134→\n   135→- **Parquet archive format**: New Parquet file format for job archiving, providing\n   136→  columnar storage with efficient compression for analytical workloads\n   137→- **S3 backend**: Full support for S3-compatible object storage\n   138→- **SQLite backend**: Full support for SQLite backend using blobs\n   139→- **Performance improvements**: Fixed performance bugs in archive backends\n   140→- **Better error handling**: Improved error messages and fallback handling\n   141→- **Zstd compression**: Parquet writers use zstd compression for better\n   142→  compression ratios compared to the previous snappy default\n   143→- **Optimized sort order**: Job and nodestate Parquet files are sorted by\n   144→  cluster, subcluster, and start time for efficient range queries\n   145→\n   146→### Unified Archive Retention and Format Conversion\n   147→\n   148→- **Uniform retention policy**: Job archive retention now supports both JSON and\n   149→  Parquet as target formats under a single, consistent policy configuration\n   150→- **Archive manager tool**: The `tools/archive-manager` utility now supports\n   151→  format conversion between JSON and Parquet job archives\n   152→- **Parquet reader**: Full Parquet archive reader implementation for reading back\n   153→  archived job data\n   154→\n   155→## New features and improvements\n   156→\n   157→### Frontend\n   158→\n   159→- **Loading indicators**: Added loading indicators to status detail and job lists\n   160→- **Job info layout**: Reviewed and improved job info row layout\n   161→- **Metric selection**: Enhanced metric selection with drag-and-drop fixes\n   162→- **Filter presets**: Move list filter preset to URL for easy sharing\n   163→- **Job comparison**: Improved job comparison views and plots\n   164→- **Subcluster reactivity**: Job list now reacts to subcluster filter changes\n   165→- **Short jobs quick selection**: New \"Short jobs\" quick-filter button in job lists\n   166→  replaces the removed undocumented `minRunningFor` filter\n   167→- **Row plot cursor sync**: Cursor position is now synchronized across all metric\n   168→  plots in a job list row for easier cross-metric comparison\n   169→- **Disabled metrics handling**: Improved handling and display of disabled metrics\n   170→  across job view, node view, and list rows\n   171→- **\"Not configured\" info cards**: Informational cards shown when optional features\n   172→  are not yet configured\n   173→- **Frontend dependencies**: Bumped frontend dependencies to latest versions\n   174→- **Svelte 5 compatibility**: Fixed Svelte state warnings and compatibility issues\n   175→\n   176→### Backend\n   177→\n   178→- **Progress bars**: Import function now shows progress during long operations\n   179→- **Better logging**: Improved logging with appropriate log levels throughout\n   180→- **Graceful shutdown**: Fixed shutdown timeout bugs and hanging issues\n   181→- **Configuration defaults**: Sensible defaults for most configuration options\n   182→- **Documentation**: Extensive documentation improvements across packages\n   183→- **Server flag in systemd unit**: Example systemd unit now includes the `-server` flag\n   184→\n   185→### Security\n   186→\n   187→- **LDAP security hardening**: Improved input validation, connection handling, and\n   188→  error reporting in the LDAP authenticator\n   189→- **OIDC security hardening**: Stricter token validation and improved error handling\n   190→  in the OIDC authenticator\n   191→- **Auth schema extensions**: Additional schema fields for improved auth configuration\n   192→\n   193→### API improvements\n   194→\n   195→- **Role-based metric visibility**: Metrics can now have role-based access control\n   196→- **Job exclusivity filter**: New filter for exclusive vs. shared jobs\n   197→- **Improved error messages**: Better error messages and documentation in REST API\n   198→- **GraphQL enhancements**: Improved GraphQL queries and resolvers\n   199→- **Stop job lookup order**: Reversed lookup order in stop job requests for\n   200→  more reliable job matching (cluster+jobId first, then jobId alone)\n   201→\n   202→### Performance\n   203→\n   204→- **Database indices**: Optimized SQLite indices for better query performance\n   205→- **Job cache**: Introduced caching table for faster job inserts\n   206→- **Parallel imports**: Archive imports now run in parallel where possible\n   207→- **External tool integration**: Optimized use of external tools (fd) for better performance\n   208→- **Node repository queries**: Reviewed and optimized node repository SQL queries\n   209→- **Buffer pool**: Resized and pooled internal buffers for better memory reuse\n   210→\n   211→### Developer experience\n   212→\n   213→- **AI agent guidelines**: Added documentation for AI coding agents (AGENTS.md, CLAUDE.md)\n   214→- **Example API payloads**: Added example JSON API payloads for testing\n   215→- **Unit tests**: Added more unit tests for NATS API, node repository, and other components\n   216→- **Test improvements**: Better test coverage; test DB is now copied before unit tests\n   217→  to avoid state pollution between test runs\n   218→- **Parquet writer tests**: Comprehensive tests for Parquet archive writing and conversion\n   219→\n   220→## Bug fixes\n   221→\n   222→- Fixed nodelist paging issues\n   223→- Fixed metric select drag and drop functionality\n   224→- Fixed render race conditions in nodeList\n   225→- Fixed tag count grouping including type\n   226→- Fixed wrong metricstore schema (missing comma)\n   227→- Fixed configuration issues causing shutdown hangs\n   228→- Fixed deadlock when NATS is not configured\n   229→- Fixed archive backend performance bugs\n   230→- Fixed continuous scroll buildup on refresh\n   231→- Improved footprint calculation logic\n   232→- Fixed polar plot data query decoupling\n   233→- Fixed missing resolution parameter handling\n   234→- Fixed node table initialization fallback\n   235→- Fixed reactivity key placement in nodeList\n   236→- Fixed nodeList resolver data handling and increased nodestate filter cutoff\n   237→- Fixed job always being transferred to main job table before archiving\n   238→- Fixed AppTagger error handling and logging\n   239→- Fixed log endpoint formatting and correctness\n   240→- Fixed automatic refresh in metric status tab\n   241→- Fixed NULL value handling in `health_state` and `health_metrics` columns\n   242→- Fixed bugs related to `job_cache` IDs being used in the main job table\n   243→- Fixed SyncJobs bug causing start job hooks to be called with wrong (cache) IDs\n   244→- Fixed 404 handler route for sub-routers\n   245→\n   246→## Configuration changes\n   247→\n   248→### New configuration options\n   249→\n   250→```json\n   251→{\n   252→  \"main\": {\n   253→    \"enable-job-taggers\": true,\n   254→    \"resampling\": {\n   255→      \"minimum-points\": 600,\n   256→      \"trigger\": 180,\n   257→      \"resolutions\": [240, 60]\n   258→    },\n   259→    \"api-subjects\": {\n   260→      \"subject-job-event\": \"cc.job.event\",\n   261→      \"subject-node-state\": \"cc.node.state\"\n   262→    }\n   263→  },\n   264→  \"nats\": {\n   265→    \"address\": \"nats://0.0.0.0:4222\",\n   266→    \"username\": \"root\",\n   267→    \"password\": \"root\"\n   268→  },\n   269→  \"cron\": {\n   270→    \"commit-job-worker\": \"1m\",\n   271→    \"duration-worker\": \"5m\",\n   272→    \"footprint-worker\": \"10m\"\n   273→  },\n   274→  \"metric-store\": {\n   275→    \"cleanup\": {\n   276→      \"mode\": \"archive\",\n   277→      \"interval\": \"48h\",\n   278→      \"directory\": \"./var/archive\"\n   279→    }\n   280→  },\n   281→  \"archive\": {\n   282→    \"retention\": {\n   283→      \"policy\": \"delete\",\n   284→      \"age\": \"6months\",\n   285→      \"target-format\": \"parquet\"\n   286→    }\n   287→  },\n   288→  \"nodestate\": {\n   289→    \"retention\": {\n   290→      \"policy\": \"archive\",\n   291→      \"age\": \"30d\",\n   292→      \"archive-path\": \"./var/nodestate-archive\"\n   293→    }\n   294→  }\n   295→}\n   296→```\n   297→\n   298→## Migration notes\n   299→\n   300→- Review and update your `config.json` to use kebab-case attribute names\n   301→- If using NATS, configure the new `nats` and `api-subjects` sections\n   302→- If using S3 archive backend, configure the new `archive` section options\n   303→- Test the new public dashboard at `/public` route\n   304→- Review cron worker configuration if you need different frequencies\n   305→- If using the archive retention feature, configure the `target-format` option\n   306→  to choose between `json` (default) and `parquet` output formats\n   307→- Consider enabling nodestate retention if you track node states over time\n   308→\n   309→## Known issues\n   310→\n   311→- The new dynamic memory management is not bullet proof yet across restarts. We\n   312→  will fix that in a subsequent patch release\n   313→- Currently energy footprint metrics of type energy are ignored for calculating\n   314→  total energy.\n   315→- With energy footprint metrics of type power the unit is ignored and it is\n   316→  assumed the metric has the unit Watt.\n   317→\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":"098078f4-e4ca-4879-9182-b00cd5e64d6d","timestamp":"2026-03-13T16:23:27.430Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/ReleaseNotes.md","content":"# `cc-backend` version 1.5.1\n\nSupports job archive version 3 and database version 12.\n\nThis is a bugfix release of `cc-backend`, the API backend and frontend\nimplementation of ClusterCockpit.\nFor release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).\n\n## Changes in 1.5.1\n\n### Database\n\n- **New migration (version 12)**: Added covering index for stats queries for significantly improved query performance\n- **New migration (version 11)**: Optimized database index count for better performance\n- **Migration 9 fix**: Removed redundant indices from migration 9 that are superseded by migration 11\n- **Optional DB optimization flag**: Added `-optimize-db` CLI flag to run `ANALYZE` on demand; removed automatic ANALYZE on startup\n- **Selective stats queries**: Stats queries are now selective, reducing unnecessary computation\n- **User list paging**: Added paging support to the user list for better scalability\n- **SQLite configuration hardening**: Sanitized SQLite configuration with new configurable options; fixes large heap allocations in the SQLite driver\n- **Query cancellation**: Long-running database queries can now be cancelled\n- **Resource leak fix**: Added missing `defer Close()` calls for all query result sets\n\n### Bug fixes\n\n- **Segfault when taggers misconfigured**: Fixed crash when `enable-job-taggers` is set but tagger rule directories are missing\n- **GroupBy stats query complexity**: Reduced complexity for `groupBy` statistics queries\n- **Ranged filter conditions**: Fixed GT and LT conditions in ranged filters\n- **Energy filter preset**: Reduced energy filter preset to a more practical default\n- **JSON validity check**: Fixed wrong field being checked for JSON validity\n- **Tagger float rounding**: Fixed rounding of floats in tagger messages\n- **Node view null safety**: Added null-safe checks in node view to prevent runtime errors\n- **Public dashboard null safety**: Added null-safe checks in the public dashboard to prevent runtime errors\n\n### Frontend\n\n- **Bumped patch versions**: Updated frontend dependencies to latest patch versions\n\n### Documentation\n\n- **New DB config options**: Added new database configuration options to README\n\n---\n\n*The sections below document all features and changes introduced in the 1.5.0 major release, which 1.5.1 is based on.*\n\n## Breaking changes\n\n### Configuration changes\n\n- **JSON attribute naming**: All JSON configuration attributes now use `kebab-case`\n  style consistently (e.g., `api-allowed-ips` instead of `apiAllowedIPs`).\n  Update your `config.json` accordingly.\n- **Removed `disable-archive` option**: This obsolete configuration option has been removed.\n- **Removed `clusters` config section**: The separate clusters configuration section\n  has been removed. Cluster information is now derived from the job archive.\n- **`apiAllowedIPs` is now optional**: If not specified, defaults to not\n  restricted.\n\n### Architecture changes\n\n- **Web framework replaced**: Migrated from `gorilla/mux` to `chi` as the HTTP\n  router. This should be transparent to users but affects how middleware and\n  routes are composed. A proper 404 handler is now in place.\n- **MetricStore moved**: The `metricstore` package has been moved from `internal/`\n  to `pkg/` as it is now part of the public API.\n- **MySQL/MariaDB support removed**: Only SQLite is now supported as the database backend.\n- **Archive to Cleanup renaming**: Archive-related functions have been refactored\n  and renamed to \"Cleanup\" for clarity.\n- **`minRunningFor` filter removed**: This undocumented filter has been removed\n  from the API and frontend.\n\n### Dependency changes\n\n- **cc-lib v2.8.0**: Switched to cc-lib version 2 with updated APIs\n- **cclib NATS client**: Now using the cclib NATS client implementation\n- Removed obsolete `util.Float` usage from cclib\n\n## Major new features\n\n### NATS API Integration\n\n- **Real-time job events**: Subscribe to job start/stop events via NATS\n- **Node state updates**: Receive real-time node state changes via NATS\n- **Configurable subjects**: NATS API subjects are now configurable via `api-subjects`\n- **Deadlock fixes**: Improved NATS client stability and graceful shutdown\n\n### Public Dashboard\n\n- **Public-facing interface**: New public dashboard route for external users\n- **DoubleMetricPlot component**: New visualization component for comparing metrics\n- **Improved layout**: Reviewed and optimized dashboard layouts for better readability\n\n### Enhanced Node Management\n\n- **Node state tracking**: New node table in database with timestamp tracking\n- **Node state filtering**: Filter jobs by node state in systems view\n- **Node list enhancements**: Improved paging, filtering, and continuous scroll support\n- **Nodestate retention and archiving**: Node state data is now subject to configurable\n  retention policies and can be archived to Parquet format for long-term storage\n- **Faulty node metric tracking**: Faulty node state metric lists are persisted to the database\n\n### Health Monitoring\n\n- **Health status dashboard**: New dedicated \"Health\" tab in the status details view\n  showing per-node metric health across the cluster\n- **CCMS health check**: Support for querying health status of external\n  cc-metric-store (CCMS) instances via the API\n- **GraphQL health endpoints**: New GraphQL queries and resolvers for health data\n- **Cluster/subcluster filter**: Filter health status view by cluster or subcluster\n\n### Log Viewer\n\n- **Web-based log viewer**: New log viewer page in the admin interface for inspecting\n  backend log output directly from the browser without shell access\n- **Accessible from header**: Quick access link from the navigation header\n\n### MetricStore Improvements\n\n- **Memory tracking worker**: New worker for CCMS memory usage tracking\n- **Dynamic retention**: Support for job specific dynamic retention times\n- **Improved compression**: Transparent compression for job archive imports\n- **Parallel processing**: Parallelized Iter function in all archive backends\n\n### Job Tagging System\n\n- **Job tagger option**: Enable automatic job tagging via configuration flag\n- **Application detection**: Automatic detection of applications (MATLAB, GROMACS, etc.)\n- **Job classification**: Automatic detection of pathological jobs\n- **omit-tagged**: Option to exclude tagged jobs from retention/cleanup operations (`none`, `all`, or `user`)\n- **Admin UI trigger**: Taggers can be run on-demand from the admin web interface\n  without restarting the backend\n\n### Archive Backends\n\n- **Parquet archive format**: New Parquet file format for job archiving, providing\n  columnar storage with efficient compression for analytical workloads\n- **S3 backend**: Full support for S3-compatible object storage\n- **SQLite backend**: Full support for SQLite backend using blobs\n- **Performance improvements**: Fixed performance bugs in archive backends\n- **Better error handling**: Improved error messages and fallback handling\n- **Zstd compression**: Parquet writers use zstd compression for better\n  compression ratios compared to the previous snappy default\n- **Optimized sort order**: Job and nodestate Parquet files are sorted by\n  cluster, subcluster, and start time for efficient range queries\n\n### Unified Archive Retention and Format Conversion\n\n- **Uniform retention policy**: Job archive retention now supports both JSON and\n  Parquet as target formats under a single, consistent policy configuration\n- **Archive manager tool**: The `tools/archive-manager` utility now supports\n  format conversion between JSON and Parquet job archives\n- **Parquet reader**: Full Parquet archive reader implementation for reading back\n  archived job data\n\n## New features and improvements\n\n### Frontend\n\n- **Loading indicators**: Added loading indicators to status detail and job lists\n- **Job info layout**: Reviewed and improved job info row layout\n- **Metric selection**: Enhanced metric selection with drag-and-drop fixes\n- **Filter presets**: Move list filter preset to URL for easy sharing\n- **Job comparison**: Improved job comparison views and plots\n- **Subcluster reactivity**: Job list now reacts to subcluster filter changes\n- **Short jobs quick selection**: New \"Short jobs\" quick-filter button in job lists\n  replaces the removed undocumented `minRunningFor` filter\n- **Row plot cursor sync**: Cursor position is now synchronized across all metric\n  plots in a job list row for easier cross-metric comparison\n- **Disabled metrics handling**: Improved handling and display of disabled metrics\n  across job view, node view, and list rows\n- **\"Not configured\" info cards**: Informational cards shown when optional features\n  are not yet configured\n- **Frontend dependencies**: Bumped frontend dependencies to latest versions\n- **Svelte 5 compatibility**: Fixed Svelte state warnings and compatibility issues\n\n### Backend\n\n- **Progress bars**: Import function now shows progress during long operations\n- **Better logging**: Improved logging with appropriate log levels throughout\n- **Graceful shutdown**: Fixed shutdown timeout bugs and hanging issues\n- **Configuration defaults**: Sensible defaults for most configuration options\n- **Documentation**: Extensive documentation improvements across packages\n- **Server flag in systemd unit**: Example systemd unit now includes the `-server` flag\n\n### Security\n\n- **LDAP security hardening**: Improved input validation, connection handling, and\n  error reporting in the LDAP authenticator\n- **OIDC security hardening**: Stricter token validation and improved error handling\n  in the OIDC authenticator\n- **Auth schema extensions**: Additional schema fields for improved auth configuration\n\n### API improvements\n\n- **Role-based metric visibility**: Metrics can now have role-based access control\n- **Job exclusivity filter**: New filter for exclusive vs. shared jobs\n- **Improved error messages**: Better error messages and documentation in REST API\n- **GraphQL enhancements**: Improved GraphQL queries and resolvers\n- **Stop job lookup order**: Reversed lookup order in stop job requests for\n  more reliable job matching (cluster+jobId first, then jobId alone)\n\n### Performance\n\n- **Database indices**: Optimized SQLite indices for better query performance\n- **Job cache**: Introduced caching table for faster job inserts\n- **Parallel imports**: Archive imports now run in parallel where possible\n- **External tool integration**: Optimized use of external tools (fd) for better performance\n- **Node repository queries**: Reviewed and optimized node repository SQL queries\n- **Buffer pool**: Resized and pooled internal buffers for better memory reuse\n\n### Developer experience\n\n- **AI agent guidelines**: Added documentation for AI coding agents (AGENTS.md, CLAUDE.md)\n- **Example API payloads**: Added example JSON API payloads for testing\n- **Unit tests**: Added more unit tests for NATS API, node repository, and other components\n- **Test improvements**: Better test coverage; test DB is now copied before unit tests\n  to avoid state pollution between test runs\n- **Parquet writer tests**: Comprehensive tests for Parquet archive writing and conversion\n\n## Bug fixes\n\n- Fixed nodelist paging issues\n- Fixed metric select drag and drop functionality\n- Fixed render race conditions in nodeList\n- Fixed tag count grouping including type\n- Fixed wrong metricstore schema (missing comma)\n- Fixed configuration issues causing shutdown hangs\n- Fixed deadlock when NATS is not configured\n- Fixed archive backend performance bugs\n- Fixed continuous scroll buildup on refresh\n- Improved footprint calculation logic\n- Fixed polar plot data query decoupling\n- Fixed missing resolution parameter handling\n- Fixed node table initialization fallback\n- Fixed reactivity key placement in nodeList\n- Fixed nodeList resolver data handling and increased nodestate filter cutoff\n- Fixed job always being transferred to main job table before archiving\n- Fixed AppTagger error handling and logging\n- Fixed log endpoint formatting and correctness\n- Fixed automatic refresh in metric status tab\n- Fixed NULL value handling in `health_state` and `health_metrics` columns\n- Fixed bugs related to `job_cache` IDs being used in the main job table\n- Fixed SyncJobs bug causing start job hooks to be called with wrong (cache) IDs\n- Fixed 404 handler route for sub-routers\n\n## Configuration changes\n\n### New configuration options\n\n```json\n{\n  \"main\": {\n    \"enable-job-taggers\": true,\n    \"resampling\": {\n      \"minimum-points\": 600,\n      \"trigger\": 180,\n      \"resolutions\": [240, 60]\n    },\n    \"api-subjects\": {\n      \"subject-job-event\": \"cc.job.event\",\n      \"subject-node-state\": \"cc.node.state\"\n    }\n  },\n  \"nats\": {\n    \"address\": \"nats://0.0.0.0:4222\",\n    \"username\": \"root\",\n    \"password\": \"root\"\n  },\n  \"cron\": {\n    \"commit-job-worker\": \"1m\",\n    \"duration-worker\": \"5m\",\n    \"footprint-worker\": \"10m\"\n  },\n  \"metric-store\": {\n    \"cleanup\": {\n      \"mode\": \"archive\",\n      \"interval\": \"48h\",\n      \"directory\": \"./var/archive\"\n    }\n  },\n  \"archive\": {\n    \"retention\": {\n      \"policy\": \"delete\",\n      \"age\": \"6months\",\n      \"target-format\": \"parquet\"\n    }\n  },\n  \"nodestate\": {\n    \"retention\": {\n      \"policy\": \"archive\",\n      \"age\": \"30d\",\n      \"archive-path\": \"./var/nodestate-archive\"\n    }\n  }\n}\n```\n\n## Migration notes\n\n- Review and update your `config.json` to use kebab-case attribute names\n- If using NATS, configure the new `nats` and `api-subjects` sections\n- If using S3 archive backend, configure the new `archive` section options\n- Test the new public dashboard at `/public` route\n- Review cron worker configuration if you need different frequencies\n- If using the archive retention feature, configure the `target-format` option\n  to choose between `json` (default) 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{"parentUuid":"3151f95f-7baf-4a89-98c9-1e0cf9ce9e8d","isSidechain":false,"promptId":"b82d8079-ef82-400b-8153-430c0e41c8a4","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01YQugggz2sDEHUFoey16zyW","type":"tool_result","content":"     1→-- Migration 11: Optimize job table indexes\n     2→--   - Remove overly specific sorting indexes (reduces ~78 → 48)\n     3→--   - Add covering index for grouped stats queries\n     4→--   - Add covering indexes for status/dashboard queries\n     5→--   - Add partial covering indexes for running jobs (tiny B-tree)\n     6→\n     7→-- ============================================================\n     8→-- Drop SELECTED existing job indexes (from migrations 08/09)\n     9→-- sqlite_autoindex_job_1 (UNIQUE constraint) is kept automatically\n    10→-- ============================================================\n    11→\n    12→-- Cluster+Partition Filter Sorting\n    13→DROP INDEX IF EXISTS jobs_cluster_partition_numnodes;\n    14→DROP INDEX IF EXISTS jobs_cluster_partition_numhwthreads;\n    15→DROP INDEX IF EXISTS jobs_cluster_partition_numacc;\n    16→DROP INDEX IF EXISTS jobs_cluster_partition_energy;\n    17→\n    18→-- Cluster+JobState Filter Sorting\n    19→DROP INDEX IF EXISTS jobs_cluster_jobstate_numnodes;\n    20→DROP INDEX IF EXISTS jobs_cluster_jobstate_numhwthreads;\n    21→DROP INDEX IF EXISTS jobs_cluster_jobstate_numacc;\n    22→DROP INDEX IF EXISTS jobs_cluster_jobstate_energy;\n    23→\n    24→-- Cluster+Shared Filter Sorting\n    25→DROP INDEX IF EXISTS jobs_cluster_shared_numnodes;\n    26→DROP INDEX IF EXISTS jobs_cluster_shared_numhwthreads;\n    27→DROP INDEX IF EXISTS jobs_cluster_shared_numacc;\n    28→DROP INDEX IF EXISTS jobs_cluster_shared_energy;\n    29→\n    30→-- User Filter Sorting\n    31→DROP INDEX IF EXISTS jobs_user_numnodes;\n    32→DROP INDEX IF EXISTS jobs_user_numhwthreads;\n    33→DROP INDEX IF EXISTS jobs_user_numacc;\n    34→DROP INDEX IF EXISTS jobs_user_energy;\n    35→\n    36→-- Project Filter Sorting\n    37→DROP INDEX IF EXISTS jobs_project_numnodes;\n    38→DROP INDEX IF EXISTS jobs_project_numhwthreads;\n    39→DROP INDEX IF EXISTS jobs_project_numacc;\n    40→DROP INDEX IF EXISTS jobs_project_energy;\n    41→\n    42→-- JobState Filter Sorting\n    43→DROP INDEX IF EXISTS jobs_jobstate_numnodes;\n    44→DROP INDEX IF EXISTS jobs_jobstate_numhwthreads;\n    45→DROP INDEX IF EXISTS jobs_jobstate_numacc;\n    46→DROP INDEX IF EXISTS jobs_jobstate_energy;\n    47→\n    48→-- Shared Filter Sorting\n    49→DROP INDEX IF EXISTS jobs_shared_numnodes;\n    50→DROP INDEX IF EXISTS jobs_shared_numhwthreads;\n    51→DROP INDEX IF EXISTS jobs_shared_numacc;\n    52→DROP INDEX IF EXISTS jobs_shared_energy;\n    53→\n    54→-- ArrayJob Filter\n    55→DROP INDEX IF EXISTS jobs_cluster_arrayjobid_starttime;\n    56→\n    57→-- Backup Indices For High Variety Columns\n    58→DROP INDEX IF EXISTS jobs_duration;\n    59→\n    60→-- ============================================================\n    61→-- Covering indexes for grouped stats queries\n    62→-- Column order: cluster (equality), hpc_user/project (GROUP BY), start_time (range scan)\n    63→-- Includes aggregated columns to avoid main table lookups entirely.\n    64→-- ============================================================\n    65→\n    66→CREATE INDEX IF NOT EXISTS jobs_cluster_user_starttime_stats\n    67→  ON job (cluster, hpc_user, start_time, duration, job_state, num_nodes, num_hwthreads, num_acc);\n    68→\n    69→CREATE INDEX IF NOT EXISTS jobs_cluster_project_starttime_stats\n    70→  ON job (cluster, project, start_time, duration, job_state, num_nodes, num_hwthreads, num_acc);\n    71→\n    72→-- ============================================================\n    73→-- Covering indexes for status/dashboard queries\n    74→-- Column order: cluster (equality), job_state (equality), grouping col, then aggregated columns\n    75→-- These indexes allow the status views to be served entirely from index scans.\n    76→-- ============================================================\n    77→\n    78→-- Drop 3-col indexes that are subsumed by the covering indexes below\n    79→DROP INDEX IF EXISTS jobs_cluster_jobstate_user;\n    80→DROP INDEX IF EXISTS jobs_cluster_jobstate_project;\n    81→\n    82→CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_user_stats\n    83→  ON job (cluster, job_state, hpc_user, duration, start_time, num_nodes, num_hwthreads, num_acc);\n    84→\n    85→CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_project_stats\n    86→  ON job (cluster, job_state, project, duration, start_time, num_nodes, num_hwthreads, num_acc);\n    87→\n    88→CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_subcluster_stats\n    89→  ON job (cluster, job_state, subcluster, duration, start_time, num_nodes, num_hwthreads, num_acc);\n    90→\n    91→-- ============================================================\n    92→-- Partial covering indexes for running jobs\n    93→-- Only running jobs are in the B-tree, so these indexes are tiny compared to\n    94→-- the full-table indexes above. SQLite uses them when the query contains the\n    95→-- literal `job_state = 'running'` (not a parameter placeholder).\n    96→-- ============================================================\n    97→\n    98→CREATE INDEX IF NOT EXISTS jobs_running_user_stats\n    99→  ON job (cluster, hpc_user, num_nodes, num_hwthreads, num_acc, duration, start_time)\n   100→  WHERE job_state = 'running';\n   101→\n   102→CREATE INDEX IF NOT EXISTS jobs_running_project_stats\n   103→  ON job (cluster, project, num_nodes, num_hwthreads, num_acc, duration, start_time)\n   104→  WHERE job_state = 'running';\n   105→\n   106→CREATE INDEX IF NOT EXISTS jobs_running_subcluster_stats\n   107→  ON job (cluster, subcluster, num_nodes, num_hwthreads, num_acc, duration, start_time)\n   108→  WHERE job_state = 'running';\n   109→\n   110→PRAGMA optimize;\n   111→\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":"791dd694-6169-44f0-abb7-f8a9d042a7c9","timestamp":"2026-03-13T16:23:31.681Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/migrations/sqlite3/11_optimize-indexes.up.sql","content":"-- Migration 11: Optimize job table indexes\n--   - Remove overly specific sorting indexes (reduces ~78 → 48)\n--   - Add covering index for grouped stats queries\n--   - Add covering indexes for status/dashboard queries\n--   - Add partial covering indexes for running jobs (tiny B-tree)\n\n-- ============================================================\n-- Drop SELECTED existing job indexes (from migrations 08/09)\n-- sqlite_autoindex_job_1 (UNIQUE constraint) is kept automatically\n-- ============================================================\n\n-- Cluster+Partition Filter Sorting\nDROP INDEX IF EXISTS jobs_cluster_partition_numnodes;\nDROP INDEX IF EXISTS jobs_cluster_partition_numhwthreads;\nDROP INDEX IF EXISTS jobs_cluster_partition_numacc;\nDROP INDEX IF EXISTS jobs_cluster_partition_energy;\n\n-- Cluster+JobState Filter Sorting\nDROP INDEX IF EXISTS jobs_cluster_jobstate_numnodes;\nDROP INDEX IF EXISTS jobs_cluster_jobstate_numhwthreads;\nDROP INDEX IF EXISTS jobs_cluster_jobstate_numacc;\nDROP INDEX IF EXISTS jobs_cluster_jobstate_energy;\n\n-- Cluster+Shared Filter Sorting\nDROP INDEX IF EXISTS jobs_cluster_shared_numnodes;\nDROP INDEX IF EXISTS jobs_cluster_shared_numhwthreads;\nDROP INDEX IF EXISTS jobs_cluster_shared_numacc;\nDROP INDEX IF EXISTS jobs_cluster_shared_energy;\n\n-- User Filter Sorting\nDROP INDEX IF EXISTS jobs_user_numnodes;\nDROP INDEX IF EXISTS jobs_user_numhwthreads;\nDROP INDEX IF EXISTS jobs_user_numacc;\nDROP INDEX IF EXISTS jobs_user_energy;\n\n-- Project Filter Sorting\nDROP INDEX IF EXISTS jobs_project_numnodes;\nDROP INDEX IF EXISTS jobs_project_numhwthreads;\nDROP INDEX IF EXISTS jobs_project_numacc;\nDROP INDEX IF EXISTS jobs_project_energy;\n\n-- JobState Filter Sorting\nDROP INDEX IF EXISTS jobs_jobstate_numnodes;\nDROP INDEX IF EXISTS jobs_jobstate_numhwthreads;\nDROP INDEX IF EXISTS jobs_jobstate_numacc;\nDROP INDEX IF EXISTS jobs_jobstate_energy;\n\n-- Shared Filter Sorting\nDROP INDEX IF EXISTS jobs_shared_numnodes;\nDROP INDEX IF EXISTS jobs_shared_numhwthreads;\nDROP INDEX IF EXISTS jobs_shared_numacc;\nDROP INDEX IF EXISTS jobs_shared_energy;\n\n-- ArrayJob Filter\nDROP INDEX IF EXISTS jobs_cluster_arrayjobid_starttime;\n\n-- Backup Indices For High Variety Columns\nDROP INDEX IF EXISTS jobs_duration;\n\n-- ============================================================\n-- Covering indexes for grouped stats queries\n-- Column order: cluster (equality), hpc_user/project (GROUP BY), start_time (range scan)\n-- Includes aggregated columns to avoid main table lookups entirely.\n-- ============================================================\n\nCREATE INDEX IF NOT EXISTS jobs_cluster_user_starttime_stats\n  ON job (cluster, hpc_user, start_time, duration, job_state, num_nodes, num_hwthreads, num_acc);\n\nCREATE INDEX IF NOT EXISTS jobs_cluster_project_starttime_stats\n  ON job (cluster, project, start_time, duration, job_state, num_nodes, num_hwthreads, num_acc);\n\n-- ============================================================\n-- Covering indexes for status/dashboard queries\n-- Column order: cluster (equality), job_state (equality), grouping col, then aggregated columns\n-- These indexes allow the status views to be served entirely from index scans.\n-- ============================================================\n\n-- Drop 3-col indexes that are subsumed by the covering indexes below\nDROP INDEX IF EXISTS jobs_cluster_jobstate_user;\nDROP INDEX IF EXISTS jobs_cluster_jobstate_project;\n\nCREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_user_stats\n  ON job (cluster, job_state, hpc_user, duration, start_time, num_nodes, num_hwthreads, num_acc);\n\nCREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_project_stats\n  ON job (cluster, job_state, project, duration, start_time, num_nodes, num_hwthreads, num_acc);\n\nCREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_subcluster_stats\n  ON job (cluster, job_state, subcluster, duration, start_time, num_nodes, num_hwthreads, num_acc);\n\n-- ============================================================\n-- Partial covering indexes for running jobs\n-- Only running jobs are in the B-tree, so these indexes are tiny compared to\n-- the full-table indexes above. SQLite uses them when the query contains the\n-- literal `job_state = 'running'` (not a parameter placeholder).\n-- ============================================================\n\nCREATE INDEX IF NOT EXISTS jobs_running_user_stats\n  ON job (cluster, hpc_user, num_nodes, num_hwthreads, num_acc, duration, start_time)\n  WHERE job_state = 'running';\n\nCREATE INDEX IF NOT EXISTS jobs_running_project_stats\n  ON job (cluster, project, num_nodes, num_hwthreads, num_acc, duration, start_time)\n  WHERE job_state = 'running';\n\nCREATE INDEX IF NOT EXISTS jobs_running_subcluster_stats\n  ON job (cluster, subcluster, num_nodes, num_hwthreads, num_acc, duration, start_time)\n  WHERE job_state = 'running';\n\nPRAGMA optimize;\n","numLines":111,"startLine":1,"totalLines":111}},"sourceToolAssistantUUID":"3151f95f-7baf-4a89-98c9-1e0cf9ce9e8d","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"2be98a44-8fcb-4e3e-8ffe-2ccb5a41a0b4","version":"2.1.74","gitBranch":"hotfix","slug":"purrfect-booping-quill"}
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{"parentUuid":"1211977b-f737-4b54-b308-aa054aa1b043","isSidechain":false,"promptId":"b82d8079-ef82-400b-8153-430c0e41c8a4","type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01DncDjVvHKu3bZqN9MeYNa7","type":"tool_result","content":"     1→// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n     2→// All rights reserved. This file is part of cc-backend.\n     3→// Use of this source code is governed by a MIT-style\n     4→// license that can be found in the LICENSE file.\n     5→\n     6→package repository\n     7→\n     8→import (\n     9→\t\"database/sql\"\n    10→\t\"embed\"\n    11→\t\"fmt\"\n    12→\n    13→\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n    14→\t\"github.com/golang-migrate/migrate/v4\"\n    15→\t\"github.com/golang-migrate/migrate/v4/database/sqlite3\"\n    16→\t\"github.com/golang-migrate/migrate/v4/source/iofs\"\n    17→)\n    18→\n    19→// Version is the current database schema version required by this version of cc-backend.\n    20→// When the database schema changes, this version is incremented and a new migration file\n    21→// is added to internal/repository/migrations/sqlite3/.\n    22→//\n    23→// Version history:\n    24→//   - Version 11: Optimize job table indexes (reduce from ~78 to 48, add covering/partial indexes)\n    25→//   - Version 10: Node table\n    26→//\n    27→// Migration files are embedded at build time from the migrations directory.\n    28→const Version uint = 11\n    29→\n    30→//go:embed migrations/*\n    31→var migrationFiles embed.FS\n    32→\n    33→// checkDBVersion verifies that the database schema version matches the expected version.\n    34→// This is called automatically during Connect() to ensure schema compatibility.\n    35→//\n    36→// Returns an error if:\n    37→//   - Database version is older than expected (needs migration)\n    38→//   - Database version is newer than expected (needs app upgrade)\n    39→//   - Database is in a dirty state (failed migration)\n    40→//\n    41→// A \"dirty\" database indicates a migration was started but not completed successfully.\n    42→// This requires manual intervention to fix the database and force the version.\n    43→func checkDBVersion(db *sql.DB) error {\n    44→\tdriver, err := sqlite3.WithInstance(db, &sqlite3.Config{})\n    45→\tif err != nil {\n    46→\t\treturn err\n    47→\t}\n    48→\td, err := iofs.New(migrationFiles, \"migrations/sqlite3\")\n    49→\tif err != nil {\n    50→\t\treturn err\n    51→\t}\n    52→\n    53→\tm, err := migrate.NewWithInstance(\"iofs\", d, \"sqlite3\", driver)\n    54→\tif err != nil {\n    55→\t\treturn err\n    56→\t}\n    57→\n    58→\tv, dirty, err := m.Version()\n    59→\tif err != nil {\n    60→\t\tif err == migrate.ErrNilVersion {\n    61→\t\t\tcclog.Warn(\"Legacy database without version or missing database file!\")\n    62→\t\t} else {\n    63→\t\t\treturn err\n    64→\t\t}\n    65→\t}\n    66→\n    67→\tif v < Version {\n    68→\t\treturn fmt.Errorf(\"unsupported database version %d, need %d.\\nPlease backup your database file and run cc-backend -migrate-db\", v, Version)\n    69→\t} else if v > Version {\n    70→\t\treturn fmt.Errorf(\"unsupported database version %d, need %d.\\nPlease refer to documentation how to downgrade db with external migrate tool\", v, Version)\n    71→\t}\n    72→\n    73→\tif dirty {\n    74→\t\treturn fmt.Errorf(\"last migration to version %d has failed, please fix the db manually and force version with -force-db flag\", Version)\n    75→\t}\n    76→\n    77→\treturn nil\n    78→}\n    79→\n    80→// getMigrateInstance creates a new migration instance for the given database file.\n    81→// This is used internally by MigrateDB, RevertDB, and ForceDB.\n    82→func getMigrateInstance(db string) (m *migrate.Migrate, err error) {\n    83→\td, err := iofs.New(migrationFiles, \"migrations/sqlite3\")\n    84→\tif err != nil {\n    85→\t\treturn nil, err\n    86→\t}\n    87→\n    88→\tm, err = migrate.NewWithSourceInstance(\"iofs\", d, fmt.Sprintf(\"sqlite3://%s?_foreign_keys=on\", db))\n    89→\tif err != nil {\n    90→\t\treturn nil, err\n    91→\t}\n    92→\n    93→\treturn m, nil\n    94→}\n    95→\n    96→// MigrateDB applies all pending database migrations to bring the schema up to date.\n    97→// This should be run with the -migrate-db flag before starting the application\n    98→// after upgrading to a new version that requires schema changes.\n    99→//\n   100→// Process:\n   101→//  1. Checks current database version\n   102→//  2. Applies all migrations from current version to target Version\n   103→//  3. Updates schema_migrations table to track applied migrations\n   104→//\n   105→// Important:\n   106→//   - Always backup your database before running migrations\n   107→//   - Migrations are irreversible without manual intervention\n   108→//   - If a migration fails, the database is marked \"dirty\" and requires manual fix\n   109→//\n   110→// Usage:\n   111→//\n   112→//\tcc-backend -migrate-db\n   113→func MigrateDB(db string) error {\n   114→\tm, err := getMigrateInstance(db)\n   115→\tif err != nil {\n   116→\t\treturn err\n   117→\t}\n   118→\n   119→\tv, dirty, err := m.Version()\n   120→\tif err != nil {\n   121→\t\tif err == migrate.ErrNilVersion {\n   122→\t\t\tcclog.Info(\"Legacy database without version or missing database file!\")\n   123→\t\t} else {\n   124→\t\t\treturn err\n   125→\t\t}\n   126→\t}\n   127→\n   128→\tif v < Version {\n   129→\t\tcclog.Infof(\"unsupported database version %d, need %d.\\nPlease backup your database file and run cc-backend -migrate-db\", v, Version)\n   130→\t}\n   131→\n   132→\tif dirty {\n   133→\t\treturn fmt.Errorf(\"last migration to version %d has failed, please fix the db manually and force version with -force-db flag\", Version)\n   134→\t}\n   135→\n   136→\tif err := m.Up(); err != nil {\n   137→\t\tif err == migrate.ErrNoChange {\n   138→\t\t\tcclog.Info(\"DB already up to date!\")\n   139→\t\t} else {\n   140→\t\t\treturn err\n   141→\t\t}\n   142→\t}\n   143→\n   144→\tm.Close()\n   145→\treturn nil\n   146→}\n   147→\n   148→// RevertDB rolls back the database schema to the previous version (Version - 1).\n   149→// This is primarily used for testing or emergency rollback scenarios.\n   150→//\n   151→// Warning:\n   152→//   - This may cause data loss if newer schema added columns/tables\n   153→//   - Always backup before reverting\n   154→//   - Not all migrations are safely reversible\n   155→//\n   156→// Usage:\n   157→//\n   158→//\tcc-backend -revert-db\n   159→func RevertDB(db string) error {\n   160→\tm, err := getMigrateInstance(db)\n   161→\tif err != nil {\n   162→\t\treturn err\n   163→\t}\n   164→\n   165→\tif err := m.Migrate(Version - 1); err != nil {\n   166→\t\tif err == migrate.ErrNoChange {\n   167→\t\t\tcclog.Info(\"DB already up to date!\")\n   168→\t\t} else {\n   169→\t\t\treturn err\n   170→\t\t}\n   171→\t}\n   172→\n   173→\tm.Close()\n   174→\treturn nil\n   175→}\n   176→\n   177→// ForceDB forces the database schema version to the current Version without running migrations.\n   178→// This is only used to recover from failed migrations that left the database in a \"dirty\" state.\n   179→//\n   180→// When to use:\n   181→//   - After manually fixing a failed migration\n   182→//   - When you've manually applied schema changes and need to update the version marker\n   183→//\n   184→// Warning:\n   185→//   - This does NOT apply any schema changes\n   186→//   - Only use after manually verifying the schema is correct\n   187→//   - Improper use can cause schema/version mismatch\n   188→//\n   189→// Usage:\n   190→//\n   191→//\tcc-backend -force-db\n   192→func ForceDB(db string) error {\n   193→\tm, err := getMigrateInstance(db)\n   194→\tif err != nil {\n   195→\t\treturn err\n   196→\t}\n   197→\n   198→\tif err := m.Force(int(Version)); err != nil {\n   199→\t\treturn err\n   200→\t}\n   201→\n   202→\tm.Close()\n   203→\treturn nil\n   204→}\n   205→\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":"a0292b40-b6d2-4df8-a8f3-fc6d8e9bd98d","timestamp":"2026-03-13T16:23:47.993Z","toolUseResult":{"type":"text","file":{"filePath":"/Users/jan/prg/ClusterCockpit/cc-backend/internal/repository/migration.go","content":"// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.\n// All rights reserved. This file is part of cc-backend.\n// Use of this source code is governed by a MIT-style\n// license that can be found in the LICENSE file.\n\npackage repository\n\nimport (\n\t\"database/sql\"\n\t\"embed\"\n\t\"fmt\"\n\n\tcclog \"github.com/ClusterCockpit/cc-lib/v2/ccLogger\"\n\t\"github.com/golang-migrate/migrate/v4\"\n\t\"github.com/golang-migrate/migrate/v4/database/sqlite3\"\n\t\"github.com/golang-migrate/migrate/v4/source/iofs\"\n)\n\n// Version is the current database schema version required by this version of cc-backend.\n// When the database schema changes, this version is incremented and a new migration file\n// is added to internal/repository/migrations/sqlite3/.\n//\n// Version history:\n//   - Version 11: Optimize job table indexes (reduce from ~78 to 48, add covering/partial indexes)\n//   - Version 10: Node table\n//\n// Migration files are embedded at build time from the migrations directory.\nconst Version uint = 11\n\n//go:embed migrations/*\nvar migrationFiles embed.FS\n\n// checkDBVersion verifies that the database schema version matches the expected version.\n// This is called automatically during Connect() to ensure schema compatibility.\n//\n// Returns an error if:\n//   - Database version is older than expected (needs migration)\n//   - Database version is newer than expected (needs app upgrade)\n//   - Database is in a dirty state (failed migration)\n//\n// A \"dirty\" database indicates a migration was started but not completed successfully.\n// This requires manual intervention to fix the database and force the version.\nfunc checkDBVersion(db *sql.DB) error {\n\tdriver, err := sqlite3.WithInstance(db, &sqlite3.Config{})\n\tif err != nil {\n\t\treturn err\n\t}\n\td, err := iofs.New(migrationFiles, \"migrations/sqlite3\")\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tm, err := migrate.NewWithInstance(\"iofs\", d, \"sqlite3\", driver)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tv, dirty, err := m.Version()\n\tif err != nil {\n\t\tif err == migrate.ErrNilVersion {\n\t\t\tcclog.Warn(\"Legacy database without version or missing database file!\")\n\t\t} else {\n\t\t\treturn err\n\t\t}\n\t}\n\n\tif v < Version {\n\t\treturn fmt.Errorf(\"unsupported database version %d, need %d.\\nPlease backup your database file and run cc-backend -migrate-db\", v, Version)\n\t} else if v > Version {\n\t\treturn fmt.Errorf(\"unsupported database version %d, need %d.\\nPlease refer to documentation how to downgrade db with external migrate tool\", v, Version)\n\t}\n\n\tif dirty {\n\t\treturn fmt.Errorf(\"last migration to version %d has failed, please fix the db manually and force version with -force-db flag\", Version)\n\t}\n\n\treturn nil\n}\n\n// getMigrateInstance creates a new migration instance for the given database file.\n// This is used internally by MigrateDB, RevertDB, and ForceDB.\nfunc getMigrateInstance(db string) (m *migrate.Migrate, err error) {\n\td, err := iofs.New(migrationFiles, \"migrations/sqlite3\")\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\n\tm, err = migrate.NewWithSourceInstance(\"iofs\", d, fmt.Sprintf(\"sqlite3://%s?_foreign_keys=on\", db))\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\n\treturn m, nil\n}\n\n// MigrateDB applies all pending database migrations to bring the schema up to date.\n// This should be run with the -migrate-db flag before starting the application\n// after upgrading to a new version that requires schema changes.\n//\n// Process:\n//  1. Checks current database version\n//  2. Applies all migrations from current version to target Version\n//  3. Updates schema_migrations table to track applied migrations\n//\n// Important:\n//   - Always backup your database before running migrations\n//   - Migrations are irreversible without manual intervention\n//   - If a migration fails, the database is marked \"dirty\" and requires manual fix\n//\n// Usage:\n//\n//\tcc-backend -migrate-db\nfunc MigrateDB(db string) error {\n\tm, err := getMigrateInstance(db)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tv, dirty, err := m.Version()\n\tif err != nil {\n\t\tif err == migrate.ErrNilVersion {\n\t\t\tcclog.Info(\"Legacy database without version or missing database file!\")\n\t\t} else {\n\t\t\treturn err\n\t\t}\n\t}\n\n\tif v < Version {\n\t\tcclog.Infof(\"unsupported database version %d, need %d.\\nPlease backup your database file and run cc-backend -migrate-db\", v, Version)\n\t}\n\n\tif dirty {\n\t\treturn fmt.Errorf(\"last migration to version %d has failed, please fix the db manually and force version with -force-db flag\", Version)\n\t}\n\n\tif err := m.Up(); err != nil {\n\t\tif err == migrate.ErrNoChange {\n\t\t\tcclog.Info(\"DB already up to date!\")\n\t\t} else {\n\t\t\treturn err\n\t\t}\n\t}\n\n\tm.Close()\n\treturn nil\n}\n\n// RevertDB rolls back the database schema to the previous version (Version - 1).\n// This is primarily used for testing or emergency rollback scenarios.\n//\n// Warning:\n//   - This may cause data loss if newer schema added columns/tables\n//   - Always backup before reverting\n//   - Not all migrations are safely reversible\n//\n// Usage:\n//\n//\tcc-backend -revert-db\nfunc RevertDB(db string) error {\n\tm, err := getMigrateInstance(db)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif err := m.Migrate(Version - 1); err != nil {\n\t\tif err == migrate.ErrNoChange {\n\t\t\tcclog.Info(\"DB already up to date!\")\n\t\t} else {\n\t\t\treturn err\n\t\t}\n\t}\n\n\tm.Close()\n\treturn nil\n}\n\n// ForceDB forces the database schema version to the current Version without running migrations.\n// This is only used to recover from failed migrations that left the database in a \"dirty\" state.\n//\n// When to use:\n//   - After manually fixing a failed migration\n//   - When you've manually applied schema changes and need to update the version marker\n//\n// Warning:\n//   - This does NOT apply any schema changes\n//   - Only use after manually verifying the schema is correct\n//   - Improper use can cause schema/version mismatch\n//\n// Usage:\n//\n//\tcc-backend -force-db\nfunc ForceDB(db string) error {\n\tm, err := getMigrateInstance(db)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tif err := m.Force(int(Version)); err != nil {\n\t\treturn err\n\t}\n\n\tm.Close()\n\treturn nil\n}\n","numLines":205,"startLine":1,"totalLines":205}},"sourceToolAssistantUUID":"1211977b-f737-4b54-b308-aa054aa1b043","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"2be98a44-8fcb-4e3e-8ffe-2ccb5a41a0b4","version":"2.1.74","gitBranch":"hotfix","slug":"purrfect-booping-quill"}
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Cluster information is now derived from the job archive.\n- **`apiAllowedIPs` is now optional**: If not specified, defaults to not\n  restricted.\n\n### Architecture changes\n\n- **Web framework replaced**: Migrated from `gorilla/mux` to `chi` as the HTTP\n  router. This should be transparent to users but affects how middleware and\n  routes are composed. A proper 404 handler is now in place.\n- **MetricStore moved**: The `metricstore` package has been moved from `internal/`\n  to `pkg/` as it is now part of the public API.\n- **MySQL/MariaDB support removed**: Only SQLite is now supported as the database backend.\n- **Archive to Cleanup renaming**: Archive-related functions have been refactored\n  and renamed to \"Cleanup\" for clarity.\n- **`minRunningFor` filter removed**: This undocumented filter has been removed\n  from the API and frontend.\n\n### Dependency changes\n\n- **cc-lib v2.8.0**: Switched to cc-lib version 2 with updated APIs\n- **cclib NATS client**: Now using the cclib NATS client implementation\n- Removed obsolete `util.Float` usage from cclib\n\n## Major new features\n\n### NATS API Integration\n\n- **Real-time job events**: Subscribe to job start/stop events via NATS\n- **Node state updates**: Receive real-time node state changes via NATS\n- **Configurable subjects**: NATS API subjects are now configurable via `api-subjects`\n- **Deadlock fixes**: Improved NATS client stability and graceful shutdown\n\n### Public Dashboard\n\n- **Public-facing interface**: New public dashboard route for external users\n- **DoubleMetricPlot component**: New visualization component for comparing metrics\n- **Improved layout**: Reviewed and optimized dashboard layouts for better readability\n\n### Enhanced Node Management\n\n- **Node state tracking**: New node table in database with timestamp tracking\n- **Node state filtering**: Filter jobs by node state in systems view\n- **Node list enhancements**: Improved paging, filtering, and continuous scroll support\n- **Nodestate retention and archiving**: Node state data is now subject to configurable\n  retention policies and can be archived to Parquet format for long-term storage\n- **Faulty node metric tracking**: Faulty node state metric lists are persisted to the database\n\n### Health Monitoring\n\n- **Health status dashboard**: New dedicated \"Health\" tab in the status details view\n  showing per-node metric health across the cluster\n- **CCMS health check**: Support for querying health status of external\n  cc-metric-store (CCMS) instances via the API\n- **GraphQL health endpoints**: New GraphQL queries and resolvers for health data\n- **Cluster/subcluster filter**: Filter health status view by cluster or subcluster\n\n### Log Viewer\n\n- **Web-based log viewer**: New log viewer page in the admin interface for inspecting\n  backend log output directly from the browser without shell access\n- **Accessible from header**: Quick access link from the navigation header\n\n### MetricStore Improvements\n\n- **Memory tracking worker**: New worker for CCMS memory usage tracking\n- **Dynamic retention**: Support for job specific dynamic retention times\n- **Improved compression**: Transparent compression for job archive imports\n- **Parallel processing**: Parallelized Iter function in all archive backends\n\n### Job Tagging System\n\n- **Job tagger option**: Enable automatic job tagging via configuration flag\n- **Application detection**: Automatic detection of applications (MATLAB, GROMACS, etc.)\n- **Job classification**: Automatic detection of pathological jobs\n- **omit-tagged**: Option to exclude tagged jobs from retention/cleanup operations (`none`, `all`, or `user`)\n- **Admin UI trigger**: Taggers can be run on-demand from the admin web interface\n  without restarting the backend\n\n### Archive Backends\n\n- **Parquet archive format**: New Parquet file format for job archiving, providing\n  columnar storage with efficient compression for analytical workloads\n- **S3 backend**: Full support for S3-compatible object storage\n- **SQLite backend**: Full support for SQLite backend using blobs\n- **Performance improvements**: Fixed performance bugs in archive backends\n- **Better error handling**: Improved error messages and fallback handling\n- **Zstd compression**: Parquet writers use zstd compression for better\n  compression ratios compared to the previous snappy default\n- **Optimized sort order**: Job and nodestate Parquet files are sorted by\n  cluster, subcluster, and start time for efficient range queries\n\n### Unified Archive Retention and Format Conversion\n\n- **Uniform retention policy**: Job archive retention now supports both JSON and\n  Parquet as target formats under a single, consistent policy configuration\n- **Archive manager tool**: The `tools/archive-manager` utility now supports\n  format conversion between JSON and Parquet job archives\n- **Parquet reader**: Full Parquet archive reader implementation for reading back\n  archived job data\n\n## New features and improvements\n\n### Frontend\n\n- **Loading indicators**: Added loading indicators to status detail and job lists\n- **Job info layout**: Reviewed and improved job info row layout\n- **Metric selection**: Enhanced metric selection with drag-and-drop fixes\n- **Filter presets**: Move list filter preset to URL for easy sharing\n- **Job comparison**: Improved job comparison views and plots\n- **Subcluster reactivity**: Job list now reacts to subcluster filter changes\n- **Short jobs quick selection**: New \"Short jobs\" quick-filter button in job lists\n  replaces the removed undocumented `minRunningFor` filter\n- **Row plot cursor sync**: Cursor position is now synchronized across all metric\n  plots in a job list row for easier cross-metric comparison\n- **Disabled metrics handling**: Improved handling and display of disabled metrics\n  across job view, node view, and list rows\n- **\"Not configured\" info cards**: Informational cards shown when optional features\n  are not yet configured\n- **Frontend dependencies**: Bumped frontend dependencies to latest versions\n- **Svelte 5 compatibility**: Fixed Svelte state warnings and compatibility issues\n\n### Backend\n\n- **Progress bars**: Import function now shows progress during long operations\n- **Better logging**: Improved logging with appropriate log levels throughout\n- **Graceful shutdown**: Fixed shutdown timeout bugs and hanging issues\n- **Configuration defaults**: Sensible defaults for most configuration options\n- **Documentation**: Extensive documentation improvements across packages\n- **Server flag in systemd unit**: Example systemd unit now includes the `-server` flag\n\n### Security\n\n- **LDAP security hardening**: Improved input validation, connection handling, and\n  error reporting in the LDAP authenticator\n- **OIDC security hardening**: Stricter token validation and improved error handling\n  in the OIDC authenticator\n- **Auth schema extensions**: Additional schema fields for improved auth configuration\n\n### API improvements\n\n- **Role-based metric visibility**: Metrics can now have role-based access control\n- **Job exclusivity filter**: New filter for exclusive vs. shared jobs\n- **Improved error messages**: Better error messages and documentation in REST API\n- **GraphQL enhancements**: Improved GraphQL queries and resolvers\n- **Stop job lookup order**: Reversed lookup order in stop job requests for\n  more reliable job matching (cluster+jobId first, then jobId alone)\n\n### Performance\n\n- **Database indices**: Optimized SQLite indices for better query performance\n- **Job cache**: Introduced caching table for faster job inserts\n- **Parallel imports**: Archive imports now run in parallel where possible\n- **External tool integration**: Optimized use of external tools (fd) for better performance\n- **Node repository queries**: Reviewed and optimized node repository SQL queries\n- **Buffer pool**: Resized and pooled internal buffers for better memory reuse\n\n### Developer experience\n\n- **AI agent guidelines**: Added documentation for AI coding agents (AGENTS.md, CLAUDE.md)\n- **Example API payloads**: Added example JSON API payloads for testing\n- **Unit tests**: Added more unit tests for NATS API, node repository, and other components\n- **Test improvements**: Better test coverage; test DB is now copied before unit tests\n  to avoid state pollution between test runs\n- **Parquet writer tests**: Comprehensive tests for Parquet archive writing and conversion\n\n## Bug fixes\n\n- Fixed nodelist paging issues\n- Fixed metric select drag and drop functionality\n- Fixed render race conditions in nodeList\n- Fixed tag count grouping including type\n- Fixed wrong metricstore schema (missing comma)\n- Fixed configuration issues causing shutdown hangs\n- Fixed deadlock when NATS is not configured\n- Fixed archive backend performance bugs\n- Fixed continuous scroll buildup on refresh\n- Improved footprint calculation logic\n- Fixed polar plot data query decoupling\n- Fixed missing resolution parameter handling\n- Fixed node table initialization fallback\n- Fixed reactivity key placement in nodeList\n- Fixed nodeList resolver data handling and increased nodestate filter cutoff\n- Fixed job always being transferred to main job table before archiving\n- Fixed 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 \"footprint-worker\": \"10m\"\n  },\n  \"metric-store\": {\n    \"cleanup\": {\n      \"mode\": \"archive\",\n      \"interval\": \"48h\",\n      \"directory\": \"./var/archive\"\n    }\n  },\n  \"archive\": {\n    \"retention\": {\n      \"policy\": \"delete\",\n      \"age\": \"6months\",\n      \"target-format\": \"parquet\"\n    }\n  },\n  \"nodestate\": {\n    \"retention\": {\n      \"policy\": \"archive\",\n      \"age\": \"30d\",\n      \"archive-path\": \"./var/nodestate-archive\"\n    }\n  }\n}\n```\n\n## Migration notes\n\n- Review and update your `config.json` to use kebab-case attribute names\n- If using NATS, configure the new `nats` and `api-subjects` sections\n- If using S3 archive backend, configure the new `archive` section options\n- Test the new public dashboard at `/public` route\n- Review cron worker configuration if you need different frequencies\n- If using the archive retention feature, configure the `target-format` option\n  to choose between `json` (default) 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Cluster information is now derived from the job archive.\n- **`apiAllowedIPs` is now optional**: If not specified, defaults to not\n  restricted.\n\n### Architecture changes\n\n- **Web framework replaced**: Migrated from `gorilla/mux` to `chi` as the HTTP\n  router. This should be transparent to users but affects how middleware and\n  routes are composed. A proper 404 handler is now in place.\n- **MetricStore moved**: The `metricstore` package has been moved from `internal/`\n  to `pkg/` as it is now part of the public API.\n- **MySQL/MariaDB support removed**: Only SQLite is now supported as the database backend.\n- **Archive to Cleanup renaming**: Archive-related functions have been refactored\n  and renamed to \"Cleanup\" for clarity.\n- **`minRunningFor` filter removed**: This undocumented filter has been removed\n  from the API and frontend.\n\n### Dependency changes\n\n- **cc-lib v2.8.0**: Switched to cc-lib version 2 with updated APIs\n- **cclib NATS client**: Now using the cclib NATS client implementation\n- Removed obsolete `util.Float` usage from cclib\n\n## Major new features\n\n### NATS API Integration\n\n- **Real-time job events**: Subscribe to job start/stop events via NATS\n- **Node state updates**: Receive real-time node state changes via NATS\n- **Configurable subjects**: NATS API subjects are now configurable via `api-subjects`\n- **Deadlock fixes**: Improved NATS client stability and graceful shutdown\n\n### Public Dashboard\n\n- **Public-facing interface**: New public dashboard route for external users\n- **DoubleMetricPlot component**: New visualization component for comparing metrics\n- **Improved layout**: Reviewed and optimized dashboard layouts for better readability\n\n### Enhanced Node Management\n\n- **Node state tracking**: New node table in database with timestamp tracking\n- **Node state filtering**: Filter jobs by node state in systems view\n- **Node list enhancements**: Improved paging, filtering, and continuous scroll support\n- **Nodestate retention and archiving**: Node state data is now subject to configurable\n  retention policies and can be archived to Parquet format for long-term storage\n- **Faulty node metric tracking**: Faulty node state metric lists are persisted to the database\n\n### Health Monitoring\n\n- **Health status dashboard**: New dedicated \"Health\" tab in the status details view\n  showing per-node metric health across the cluster\n- **CCMS health check**: Support for querying health status of external\n  cc-metric-store (CCMS) instances via the API\n- **GraphQL health endpoints**: New GraphQL queries and resolvers for health data\n- **Cluster/subcluster filter**: Filter health status view by cluster or subcluster\n\n### Log Viewer\n\n- **Web-based log viewer**: New log viewer page in the admin interface for inspecting\n  backend log output directly from the browser without shell access\n- **Accessible from header**: Quick access link from the navigation header\n\n### MetricStore Improvements\n\n- **Memory tracking worker**: New worker for CCMS memory usage tracking\n- **Dynamic retention**: Support for job specific dynamic retention times\n- **Improved compression**: Transparent compression for job archive imports\n- **Parallel processing**: Parallelized Iter function in all archive backends\n\n### Job Tagging System\n\n- **Job tagger option**: Enable automatic job tagging via configuration flag\n- **Application detection**: Automatic detection of applications (MATLAB, GROMACS, etc.)\n- **Job classification**: Automatic detection of pathological jobs\n- **omit-tagged**: Option to exclude tagged jobs from retention/cleanup operations (`none`, `all`, or `user`)\n- **Admin UI trigger**: Taggers can be run on-demand from the admin web interface\n  without restarting the backend\n\n### Archive Backends\n\n- **Parquet archive format**: New Parquet file format for job archiving, providing\n  columnar storage with efficient compression for analytical workloads\n- **S3 backend**: Full support for S3-compatible object storage\n- **SQLite backend**: Full support for SQLite backend using blobs\n- **Performance improvements**: Fixed performance bugs in archive backends\n- **Better error handling**: Improved error messages and fallback handling\n- **Zstd compression**: Parquet writers use zstd compression for better\n  compression ratios compared to the previous snappy default\n- **Optimized sort order**: Job and nodestate Parquet files are sorted by\n  cluster, subcluster, and start time for efficient range queries\n\n### Unified Archive Retention and Format Conversion\n\n- **Uniform retention policy**: Job archive retention now supports both JSON and\n  Parquet as target formats under a single, consistent policy configuration\n- **Archive manager tool**: The `tools/archive-manager` utility now supports\n  format conversion between JSON and Parquet job archives\n- **Parquet reader**: Full Parquet archive reader implementation for reading back\n  archived job data\n\n## New features and improvements\n\n### Frontend\n\n- **Loading indicators**: Added loading indicators to status detail and job lists\n- **Job info layout**: Reviewed and improved job info row layout\n- **Metric selection**: Enhanced metric selection with drag-and-drop fixes\n- **Filter presets**: Move list filter preset to URL for easy sharing\n- **Job comparison**: Improved job comparison views and plots\n- **Subcluster reactivity**: Job list now reacts to subcluster filter changes\n- **Short jobs quick selection**: New \"Short jobs\" quick-filter button in job lists\n  replaces the removed undocumented `minRunningFor` filter\n- **Row plot cursor sync**: Cursor position is now synchronized across all metric\n  plots in a job list row for easier cross-metric comparison\n- **Disabled metrics handling**: Improved handling and display of disabled metrics\n  across job view, node view, and list rows\n- **\"Not configured\" info cards**: Informational cards shown when optional features\n  are not yet configured\n- **Frontend dependencies**: Bumped frontend dependencies to latest versions\n- **Svelte 5 compatibility**: Fixed Svelte state warnings and compatibility issues\n\n### Backend\n\n- **Progress bars**: Import function now shows progress during long operations\n- **Better logging**: Improved logging with appropriate log levels throughout\n- **Graceful shutdown**: Fixed shutdown timeout bugs and hanging issues\n- **Configuration defaults**: Sensible defaults for most configuration options\n- **Documentation**: Extensive documentation improvements across packages\n- **Server flag in systemd unit**: Example systemd unit now includes the `-server` flag\n\n### Security\n\n- **LDAP security hardening**: Improved input validation, connection handling, and\n  error reporting in the LDAP authenticator\n- **OIDC security hardening**: Stricter token validation and improved error handling\n  in the OIDC authenticator\n- **Auth schema extensions**: Additional schema fields for improved auth configuration\n\n### API improvements\n\n- **Role-based metric visibility**: Metrics can now have role-based access control\n- **Job exclusivity filter**: New filter for exclusive vs. shared jobs\n- **Improved error messages**: Better error messages and documentation in REST API\n- **GraphQL enhancements**: Improved GraphQL queries and resolvers\n- **Stop job lookup order**: Reversed lookup order in stop job requests for\n  more reliable job matching (cluster+jobId first, then jobId alone)\n\n### Performance\n\n- **Database indices**: Optimized SQLite indices for better query performance\n- **Job cache**: Introduced caching table for faster job inserts\n- **Parallel imports**: Archive imports now run in parallel where possible\n- **External tool integration**: Optimized use of external tools (fd) for better performance\n- **Node repository queries**: Reviewed and optimized node repository SQL queries\n- **Buffer pool**: Resized and pooled internal buffers for better memory reuse\n\n### Developer experience\n\n- **AI agent guidelines**: Added documentation for AI coding agents (AGENTS.md, CLAUDE.md)\n- **Example API payloads**: Added example JSON API payloads for testing\n- **Unit tests**: Added more unit tests for NATS API, node repository, and other components\n- **Test improvements**: Better test coverage; test DB is now copied before unit tests\n  to avoid state pollution between test runs\n- **Parquet writer tests**: Comprehensive tests for Parquet archive writing and conversion\n\n## Bug fixes\n\n- Fixed nodelist paging issues\n- Fixed metric select drag and drop functionality\n- Fixed render race conditions in nodeList\n- Fixed tag count grouping including type\n- Fixed wrong metricstore schema (missing comma)\n- Fixed configuration issues causing shutdown hangs\n- Fixed deadlock when NATS is not configured\n- Fixed archive backend performance bugs\n- Fixed continuous scroll buildup on refresh\n- Improved footprint calculation logic\n- Fixed polar plot data query decoupling\n- Fixed missing resolution parameter handling\n- Fixed node table initialization fallback\n- Fixed reactivity key placement in nodeList\n- Fixed nodeList resolver data handling and increased nodestate filter cutoff\n- Fixed job always being transferred to main job table before archiving\n- Fixed AppTagger error handling and logging\n- Fixed log endpoint formatting and correctness\n- Fixed automatic refresh in metric status tab\n- Fixed NULL value handling in `health_state` and `health_metrics` columns\n- Fixed bugs related to `job_cache` IDs being used in the main job table\n- Fixed SyncJobs bug causing start job hooks to be called with wrong (cache) IDs\n- Fixed 404 handler route for sub-routers\n\n## Configuration changes\n\n### New configuration options\n\n```json\n{\n  \"main\": {\n    \"enable-job-taggers\": true,\n    \"resampling\": {\n      \"minimum-points\": 600,\n      \"trigger\": 180,\n      \"resolutions\": [240, 60]\n    },\n    \"api-subjects\": {\n      \"subject-job-event\": \"cc.job.event\",\n      \"subject-node-state\": \"cc.node.state\"\n    }\n  },\n  \"nats\": {\n    \"address\": \"nats://0.0.0.0:4222\",\n    \"username\": \"root\",\n    \"password\": \"root\"\n  },\n  \"cron\": {\n    \"commit-job-worker\": \"1m\",\n    \"duration-worker\": \"5m\",\n    \"footprint-worker\": \"10m\"\n  },\n  \"metric-store\": {\n    \"cleanup\": {\n      \"mode\": \"archive\",\n      \"interval\": \"48h\",\n      \"directory\": \"./var/archive\"\n    }\n  },\n  \"archive\": {\n    \"retention\": {\n      \"policy\": \"delete\",\n      \"age\": \"6months\",\n      \"target-format\": \"parquet\"\n    }\n  },\n  \"nodestate\": {\n    \"retention\": {\n      \"policy\": \"archive\",\n      \"age\": \"30d\",\n      \"archive-path\": \"./var/nodestate-archive\"\n    }\n  }\n}\n```\n\n## Migration notes\n\n- Review and update your `config.json` to use kebab-case attribute names\n- If using NATS, configure the new `nats` and `api-subjects` sections\n- If using S3 archive backend, configure the new `archive` section options\n- Test the new public dashboard at `/public` route\n- Review cron worker configuration if you need different frequencies\n- If using the archive retention feature, configure the `target-format` option\n  to choose between `json` (default) and `parquet` output formats\n- Consider enabling nodestate retention if you track node states over time\n\n## Known issues\n\n- The new dynamic memory management is not bullet proof yet across restarts. We\n  will fix that in a subsequent patch release\n- Currently energy footprint metrics of type energy are ignored for calculating\n  total energy.\n- With energy footprint metrics of type power the unit is ignored and it is\n  assumed the metric has the unit Watt.\n","structuredPatch":[{"oldStart":10,"oldLines":8,"newStart":10,"newLines":7,"lines":[" "," ### Database"," ","-- **New migration (version 12)**: Added covering index for stats queries for significantly improved query performance","-- **New migration (version 11)**: Optimized database index count for better performance","+- **New migration (version 11)**: Optimized database index count and added covering indexes for stats queries for significantly improved query performance"," - **Migration 9 fix**: Removed redundant indices from migration 9 that are superseded by migration 11"," - **Optional DB optimization flag**: Added `-optimize-db` CLI flag to run `ANALYZE` on demand; removed automatic ANALYZE on startup"," - **Selective stats queries**: Stats queries are now selective, reducing unnecessary computation"]}],"userModified":false,"replaceAll":false},"sourceToolAssistantUUID":"e85ef7b9-6353-4fb3-b0ed-a85b9a86a02d","userType":"external","cwd":"/Users/jan/prg/ClusterCockpit/cc-backend","sessionId":"2be98a44-8fcb-4e3e-8ffe-2ccb5a41a0b4","version":"2.1.74","gitBranch":"hotfix","slug":"purrfect-booping-quill"}
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