b5df74a321
The OOM event detection and alert banner was implemented in commit ea1406a.
This notes file documents the implementation summary.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
37 lines
1.5 KiB
Markdown
37 lines
1.5 KiB
Markdown
# OOM Event Detection - Already Complete
|
|
|
|
This task (bf-dm8v) was already implemented in commit `ea1406a` on 2026-06-07.
|
|
|
|
## Implementation Summary
|
|
|
|
The OOM event detection and alert banner feature was fully implemented with:
|
|
|
|
### Backend (systemCgroupMonitor.ts)
|
|
- `getOomState()` function for lightweight OOM polling
|
|
- Tracks: `oomKillCount`, `lastOomAt`, `oomDetected`, `memoryCurrentAtOom`
|
|
- Reads from `/sys/fs/cgroup/user.slice/user-1001.slice/memory.events`
|
|
|
|
### API (server.ts)
|
|
- `GET /api/system/oom-state` endpoint returns current OOM state
|
|
- Includes `formattedMemoryCurrent` for human-readable memory value
|
|
|
|
### Frontend (OomAlertBanner.tsx)
|
|
- Polls `/api/system/oom-state` every 30 seconds
|
|
- Shows persistent red alert banner when `oomDetected=true`
|
|
- Displays: OOM kill count, timestamp, memory at detection
|
|
- Dismissible via X button
|
|
- Auto-clears after 1 hour using localStorage
|
|
- CSS styling: red background, warning icon, dismiss button
|
|
|
|
### Integration (App.tsx)
|
|
- Banner rendered at top of dashboard (line 640)
|
|
- `oomBannerDismissed` state tracks dismissal
|
|
|
|
## Files Modified in ea1406a
|
|
- `src/systemCgroupMonitor.ts` - +66 lines (getOomState, OomState interface)
|
|
- `src/web/server.ts` - +11 lines (/api/system/oom-state endpoint)
|
|
- `src/web/frontend/src/components/OomAlertBanner.tsx` - +115 lines (new component)
|
|
- `src/web/frontend/src/App.tsx` - +3 lines (import and render)
|
|
- `src/web/frontend/src/index.css` - +68 lines (banner styling)
|
|
|
|
Total: 263 lines added
|