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DashBoard/openspec/changes/archive/2026-02-26-admin-perf-vue-migration-monitoring-gaps/specs/archive-log-rotation/spec.md
egg 07ced80fb0 feat(admin-perf): full Vue SPA migration + slow-query/memory monitoring gaps 
Remove Jinja2 template fallback (1249 lines) — /admin/performance now serves
Vue SPA exclusively via send_from_directory.

Backend:
- Add _SLOW_QUERY_WAITING counter with get_slow_query_waiting_count()
- Record slow-path latency in read_sql_df_slow/iter via record_query_latency()
- Extend metrics_history schema with slow_query_active, slow_query_waiting,
  worker_rss_bytes columns + ALTER TABLE migration for existing DBs
- Add cleanup_archive_logs() with configurable ARCHIVE_LOG_DIR/KEEP_COUNT
- Integrate archive cleanup into MetricsHistoryCollector 50-min cycle

Frontend:
- Add slow_query_active and slow_query_waiting StatCards to connection pool
- Add slow_query_active trend line to pool trend chart
- Add Worker memory (RSS MB) trend chart with preprocessing
- Update modernization gate check path to frontend style.css

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-26 09:48:54 +08:00

1.6 KiB
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ADDED Requirements

Requirement: Automatic archive log cleanup

The system SHALL provide a cleanup_archive_logs() function in core/metrics_history.py that deletes old rotated log files from logs/archive/, keeping the most recent N files per log type (access, error, watchdog, rq_worker, startup).

Scenario: Cleanup keeps recent files

  • WHEN cleanup_archive_logs() is called with keep_per_type=20 and there are 30 access_*.log files
  • THEN 10 oldest access_*.log files SHALL be deleted, keeping the 20 most recent by modification time

Scenario: No excess files

  • WHEN cleanup_archive_logs() is called and each type has fewer than keep_per_type files
  • THEN no files SHALL be deleted

Scenario: Archive directory missing

  • WHEN cleanup_archive_logs() is called and the archive directory does not exist
  • THEN the function SHALL return 0 without error

Requirement: Archive cleanup integrated into collector cycle

The MetricsHistoryCollector SHALL call cleanup_archive_logs() alongside the existing SQLite cleanup, running approximately every 50 minutes (every 100 collection intervals).

Scenario: Periodic cleanup executes

  • WHEN the cleanup counter reaches 100 intervals
  • THEN both SQLite metrics cleanup and archive log cleanup SHALL execute

Requirement: Archive cleanup configuration

The archive log cleanup SHALL be configurable via environment variables: ARCHIVE_LOG_DIR (default: logs/archive) and ARCHIVE_LOG_KEEP_COUNT (default: 20).

Scenario: Custom keep count

  • WHEN ARCHIVE_LOG_KEEP_COUNT=10 is set
  • THEN cleanup SHALL keep only the 10 most recent files per type