Three proposals addressing the 2026-02-25 trace pipeline OOM crash (114K CIDs):
1. trace-events-memory-triage: fetchmany iterator (read_sql_df_slow_iter),
admission control (50K CID limit for non-MSD), cache skip for large queries,
early memory release with gc.collect()
2. trace-async-job-queue: RQ-based async jobs for queries >20K CIDs,
separate worker process with isolated memory, frontend polling via
useTraceProgress composable, systemd service + deploy scripts
3. trace-streaming-response: chunked Redis storage (TRACE_STREAM_BATCH_SIZE=5000),
NDJSON stream endpoint (GET /api/trace/job/<id>/stream), frontend
ReadableStream consumer for progressive rendering, backward-compatible
with legacy single-key storage
All three proposals archived. 1101 tests pass, frontend builds clean.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Transform /mid-section-defect from TMTT-only backward analysis into a full-line
bidirectional defect traceability center supporting all detection stations.
Key changes:
- Parameterized station detection: any workcenter group as detection station
- Bidirectional tracing: backward (upstream attribution) + forward (downstream reject rates)
- Dual query mode: date range OR LOT/工單/WAFER container-based seed resolution
- Multi-select filters for upstream station, equipment model (RESOURCEFAMILYNAME), and loss reasons
- Progressive 3-stage trace pipeline (seed-resolve → lineage → events) with streaming UI
- Equipment model lookup via resource cache instead of SPECNAME
- Session caching, auto-refresh, searchable MultiSelect with fuzzy matching
- Remove legacy tmtt-defect module (fully superseded)
- Archive openspec change artifacts
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Update README v5.5 with Hold Overview/History pages, cascade filters,
table query whitelist, WIP filter preservation, and review hardening
changelog. Sync start_server.sh required frontend entries to cover all
13 Vite-built pages.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
URL is now single source of truth for filter state (workorder, lotid,
package, type, status) across WIP Overview and Detail pages. Drill-down
carries all filters + status; back button dynamically reflects Detail
changes. Backend Detail API now supports pj_type filter parameter.
Harden concurrency: add pagehide abort for MPA navigation, double-check
locking on Redis JSON parse and snapshot build to prevent thread pool
saturation during rapid page switching. Fix watchdog setsid and PID
discovery. Fix test_realtime_equipment_cache RUNCARDLOTID field mismatch.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
