- /api/health returns {status, uptime_sec, version, event_count,
ingest_rate_per_sec, ws_clients, tailer_files_watched, dedup_dropped,
process_resident_memory_bytes}; returns HTTP 503 with status='overloaded'
when maxEventCount is exceeded
- /api/metrics exposes the same counters in Prometheus text format;
fabric_status=0 when overloaded
- Add ServerMetrics.eventCount setter so both endpoints sync from store.size
(fixes fabric_event_count in /api/metrics showing 0 when events added directly)
- Wire --max-events CLI option into `fabric web`; pass maxEventCount and
deduplicator to createWebServer so the memory-bomb guard and dedup_dropped
reporting are actually activated
- Track tailerFilesWatched: set after tailer.start() and update on each event
for DirectoryTailer (uses activeFiles.length getter)
- Add import for Node net module used by systemd watchdog notify
- Add tests: overload guard returns 503, within-limit returns 200, Prometheus
reflects fabric_status=0 when overloaded
systemd service already has Restart=on-failure + WatchdogSec=30 (scripts/fabric-web.service);
liveness guard in server.ts calls process.exit(1) after 3 consecutive overload
checks, triggering systemd restart.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
NEEDLE log retention for ~/.needle/logs/. The directory had grown to
103k files / 11GB with no cleanup. Adds:
- fabric prune command: archives old files into dated tar.gz, deletes
expired archives, with configurable age thresholds
- mend.logs_pruned events emitted to fabric-mend.jsonl for FABRIC tailer
- systemd timer (fabric-prune.timer) for daily automatic pruning
- 9 tests covering archive, delete, dry-run, edge cases
Ran initial prune: 103,857 -> 1,006 files, 8.6 GB freed.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
