Files
DashBoard/openspec/changes/archive/2026-02-25-trace-pipeline-pool-isolation/tasks.md
egg cbb943dfe5 feat(trace-pool-isolation): migrate event_fetcher/lineage_engine to slow connections + fix 51 test failures
Trace pipeline pool isolation:
- Switch event_fetcher and lineage_engine to read_sql_df_slow (non-pooled)
- Reduce EVENT_FETCHER_MAX_WORKERS 4→2, TRACE_EVENTS_MAX_WORKERS 4→2
- Add 60s timeout per batch query, cache skip for CID>10K
- Early del raw_domain_results + gc.collect() for large queries
- Increase DB_SLOW_MAX_CONCURRENT: base 3→5, dev 2→3, prod 3→5

Test fixes (51 pre-existing failures → 0):
- reject_history: WORKFLOW CSV header, strict bool validation, pareto mock path
- portal shell: remove non-existent /tmtt-defect route from tests
- conftest: add --run-stress option to skip stress/load tests by default
- migration tests: skipif baseline directory missing
- performance test: update Vite asset assertion
- wip hold: add firstname/waferdesc mock params
- template integration: add /reject-history canonical route

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 16:13:19 +08:00

1.1 KiB
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1. Config 調整

  • 1.1 settings.py: Config base DB_SLOW_MAX_CONCURRENT 3→5, DevelopmentConfig 2→3, ProductionConfig 3→5

2. 後端 service 遷移

  • 2.1 event_fetcher.py: import read_sql_df_slow as read_sql_df (line 16)
  • 2.2 event_fetcher.py: EVENT_FETCHER_MAX_WORKERS default 4→2 (line 22)
  • 2.3 event_fetcher.py: _fetch_batchtimeout_seconds=60 (line 247)
  • 2.4 event_fetcher.py: 新增 CACHE_SKIP_CID_THRESHOLDfetch_events 大 CID 集跳過 cache + del grouped
  • 2.5 lineage_engine.py: import read_sql_df_slow as read_sql_df (line 10)

3. Route 層修改

  • 3.1 trace_routes.py: TRACE_EVENTS_MAX_WORKERS default 4→2 (line 39)
  • 3.2 trace_routes.py: events endpoint 中 del raw_domain_results 早期釋放
  • 3.3 trace_routes.py: 大查詢後 gc.collect()
  • 3.4 trace_routes.py: 大查詢跳過 route-level events cache

4. Tests

  • 4.1 test_event_fetcher.py: 新增 regression test 驗證 slow path import
  • 4.2 test_lineage_engine.py: 新增 regression test 驗證 slow path import
  • 4.3 執行 pytest tests/ -v 確認全部通過