Run #401

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Tu es un agent de monitoring du pool agencecom.\n\nLessons pertinentes:\nLESSONS APPRISES PERTINENTES :
- L453-HUB: Health endpoints K8s : separer liveness no-DB / readiness DB-1s alert / startup cached
- L328-CROSS-S150-blocD2-deploy: Bloc D2 cache layer DEPLOYED Sprint 2 P2 — REUSE Redis 7.0.15 BSD existing Contabo (skip Valkey doublon) + smoke 5/5 PASS via /api/memory/cache/health endpoint dedie
- L460-CROSS: Cron rsync openclaw gem-agencecom Info->Contabo (drift prevention, exclude sessions/)
- L448-INFO: Healthcheck doit alerter sur HTTP status_code=0 (timeout/connection refused), pas seulement >=500
- L447-INFO: agent_task_schedules.total_runs sous-évalué x10-x40 — dual scheduler (timers systemd vs scheduler-bot) cause désync\n\nDonnees pool actuelles:\n[missing:pool_status]\n\nIdentifie les agents zombies (busy >1h sans completion), error_count_last_hour > 5, ou drift quarantine. Donne 3 recommandations concretes en markdown bullet points avec actions SQL.

D'après les lessons apprises et l'absence de données `pool_status`, voici mon analyse et recommandations :

## 🔍 Analyse des risques identifiés

1. **Absence de données pool_status** → indicateur potentiel de panne du collecteur ou de timeout (cf. L448-INFO : HTTP status_code=0)
2. **Risque de désynchronisation dual scheduler** (L447-INFO) → agents peuvent sembler "zombies" si `total_runs` sous-évalué
3. **Drift potentiel** entre Contabo et agencecom (L460-CROSS) → sessions/ peuvent causer des incohérences

## 🛠️ 3 Recommandations concrètes

### 1. Diagnostiquer l'absence de pool_status
```sql
-- Vérifier si le collecteur est vivant (health endpoint)
SELECT 
  agent_id,
  last_heartbeat,
  CASE 
    WHEN last_heartbeat < NOW() - INTERVAL '1 hour' THEN 'ZOMBIE'
    WHEN last_heartbeat IS NULL THEN 'NO_DATA'
    ELSE 'OK'
  END as status
FROM agent_heartbeats
WHERE pool = 'agencecom'
ORDER BY last_heartbeat DESC NULLS LAST;

-- Si aucun résultat : vérifier le endpoint health K8s (L453-HUB)
-- curl -X GET https://agencecom.internal/health/liveness  # no-DB
-- curl -X GET https://agencecom.internal/health/readiness # DB-1s
```

### 2. Identifier les vrais zombies (hors désync scheduler)
```sql
-- Agents busy >1h sans completion (filtrer faux positifs scheduler)
WITH scheduler_desync AS (
  SELECT agent_id, 
         (total_runs * 10) as estimated_real_runs  -- correction x10 (L447)
  FROM agent_task_schedules 
  WHERE pool = 'agencecom'
)
SELECT 
  a.agent_id,
  a.state,
  a.last_busy_at,
  a.last_completed_at,
  a.error_count_last_hour,
  CASE 
    WHEN a.error_count_last_hour > 5 THEN 'ERROR_THRESHOLD'
    WHEN a.last_busy_at < NOW() - INTERVAL '1 hour' 
         AND (a.last_completed_at IS NULL OR a.last_completed_at < a.last_busy_at)
         AND (s.estimated_real_runs IS NULL OR s.estimated_real_runs < 100) -- exclure scheduler actif
    THEN 'ZOMBIE'
    ELSE 'OK'
  END as alert
FROM agents a
LEFT JOIN scheduler_desync s ON a.agent_id = s.agent_id
WHERE a.pool = 'agencecom'
  AND (a.error_count_last_hour > 5 
       OR (a.last_busy_at < NOW() - INTERVAL '1 hour' 
           AND a.state = 'busy'));
```

### 3. Vérifier drift Contabo et quarantaine
```sql
-- Détection drift via rsync logs (L460-CROSS)
SELECT 
  agent_id,
  last_rsync_at,
  rsync_exit_code,
  CASE 
    WHEN rsync_exit_code != 0 THEN 'DRIFT_DETECTED'
    WHEN last_rsync_at < NOW() - INTERVAL '2 hours' THEN 'STALE_RSYNC'
    ELSE 'OK'
  END as drift_status
FROM agent_rsync_logs
WHERE pool = 'agencecom'
  AND (rsync_exit_code != 0 OR last_rsync_at < NOW() - INTERVAL '2 hours');

-- Mettre en quarantaine les agents en drift
UPDATE agents 
SET quarantine = TRUE,
    quarantine_reason = 'Drift Contabo détecté - rsync exit code != 0'
WHERE agent_id IN (
  SELECT agent_id 
  FROM agent_rsync_logs 
  WHERE pool = 'agencecom' 
    AND rsync_exit_code != 0
    AND last_rsync_at > NOW() - INTERVAL '1 hour'
);
```

## ⚡ Actions immédiates

1. **Redémarrer le collecteur pool_status** si aucune donnée :
   ```bash
   systemctl restart agencecom-collector
   # Vérifier : curl -X GET https://agencecom.internal/health/readiness
   ```

2. **Corriger le dual scheduler** (L447-INFO) :
   ```sql
   -- Désactiver un des deux schedulers
   UPDATE agent_task_schedules 
   SET enabled = FALSE 
   WHERE scheduler_type = 'systemd_timer' 
     AND pool = 'agencecom';
   ```

3. **Forcer un rsync manuel** si drift détecté :
   ```bash
   rsync -avz --exclude 'sessions/' /var/lib/agencecom/ contabo:/var/lib/agencecom/
   ```