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pm2-self-heal.prose.md: - Add AS-BUILT note: gpu-monitor is systemd-managed, NOT PM2 - gpu-watchdog is decommissioned and folded into gpu-monitor.service - gitea-runner is KEPT; abiba-zulip is KEPT (online for days) - spoton-service was deleted; live PM2 set is 4 processes - Preserve historical context for crash-loop guard litellm-health.prose.md: - Correct Prometheus node coverage: 6 nodes (.4/.5/.6/.9/.12/.15:9100) - Note .4:9100 is DEAD target (no route, down for weeks) - Clarify this does not read as 6 healthy nodes
95 lines
3.8 KiB
Markdown
95 lines
3.8 KiB
Markdown
---
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kind: responsibility
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name: pm2-self-heal
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description: >
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PM2 process health check for abiba-telegram, abiba-zulip, gitea-runner, and zulip-watchdog.
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gpu-monitor is systemd-managed (gpu-monitor.service), NOT PM2.
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gpu-watchdog is decommissioned and folded into gpu-monitor.service.
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gitea-runner is KEPT. abiba-zulip is KEPT (online for days).
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---
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## Maintains
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- abiba-telegram: { status: "online", uptime: string, restarts: number }
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- abiba-zulip: { status: "online", uptime: string, restarts: number }
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- gitea-runner: { status: "online", uptime: string, restarts: number }
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- zulip-watchdog: { status: "online", uptime: string, restarts: number }
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- last_check: timestamp
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## Continuity
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- Self-driven: check every 300 seconds (5 min)
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- Also wakes on user request (`prose run pm2-self-heal`)
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## Remediation Rules
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### Rule 1: Process Stopped or Errored
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- **Detect**: `pm2 status` shows "stopped" or "errored" for a named process
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- **Fix**: `pm2 restart <name>`
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- **Verify**: Re-check status after 5 seconds
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- **Escalate**: If still failed after 2 retries, send Zulip DM to owner
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### Rule 2: Process Restarting Too Often (crash-loop guard)
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- **Detect**: `pm2 status` shows restarts > 30 (cumulative lifetime counter) **or** a
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process reporting a restart count > 1000 while showing "online" (a crash-loop mask)
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- **Note**: PM2 counter never decrements; only full delete+re-add resets it
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- **Fix**: `pm2 delete <name> && pm2 start <ecosystem> --only <name>`
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- **Script guard (2026-08-16)**: `scripts/pm2-self-heal.sh` now restarts `abiba-telegram`
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when `TEL_RESTARTS > 1000` even if the process reports "online" — catches a quiet
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crash-loop that never toggles status to "stopped"/"errored" (e.g. the 10k-restarts
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spoton incident). Alerts include the restart count.
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- **AS-BUILT (2026-09-15)**: spoton-service was deleted with its app; the live PM2 set is
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four processes (abiba-telegram, abiba-zulip, gitea-runner, zulip-watchdog). The spoton
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reference above is historical context for the crash-loop guard, not a live process.
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- **Escalate**: Only when restarts > 30 — alerts to Zulip DM
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- **Historical fix**: Previous cycles were caused by abiba-zulip extension's
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stuck detection (STUCK_THRESHOLD_MS was 30min, raised to 4h in v2).
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This was the root cause of the 18-restart accumulation. Threshold raised
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and PM2 counter reset on 2026-06-28.
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## Execution
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1. **Check PM2 status** — Run `pm2 status --no-color` and parse the table (5th data column = PID, 8th = restarts, 9th = status)
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2. **Check abiba-telegram**:
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- If status is "online" → pass
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- If status is "stopped" or "errored" → apply Rule 1
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- If restarts > 5 → alert owner
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3. **Check abiba-zulip** (live Zulip bridge, heartbeating):
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- If status is "online" → pass, log restarts count
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- If status is "stopped" or "errored" → restart (`pm2 restart abiba-zulip` — fully restored)
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- If restarts > 5 in last hour → alert owner with full diagnostics
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4. **Log results** — Append to `SyslogSolution/health-logs/pm2/{timestamp}.md` in Gitea (not knowledge graph — hard rule)
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5. **Alert** — Send Zulip DM to owner if escalation needed (do NOT run pm2 commands during alerting)
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6. **Wait 5 min** → repeat from step 1
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## Example Output (when healthy)
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```json
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{
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"run_id": "pm2-heal-001",
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"checked_at": "2026-06-26T15:00:00Z",
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"processes": {
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"abiba-zulip": { "status": "online", "uptime": "2h", "restarts": 0 },
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"abiba-telegram": { "status": "online", "uptime": "48h", "restarts": 0 }
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},
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"actions_taken": [],
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"overall": "healthy"
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}
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```
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## Example Output (when fixed)
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```json
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{
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"processes": {
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"abiba-telegram": { "status": "errored → restarted → online" },
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"abiba-zulip": { "status": "online", "uptime": "2h", "restarts": 0 }
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},
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"actions_taken": [
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{ "target": "abiba-telegram", "action": "pm2 restart", "result": "online" }
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],
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"overall": "fixed"
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}
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```
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