Suite Canary Monitor

The CanaryMonitor (monitoring/canary_monitor.py) executes automated synthetic queries against all registered providers to monitor provider health, detect upstream DOM/API changes, and generate quality metrics.

Planification

The Canary suite is scheduled daily using AsyncIOScheduler (APScheduler):

• Défaut Execution Time: 06:00 UTC (configurable via CANARY_RUN_HOUR).
• Concurrency Control: Semaphore limited to CANARY_PROVIDER_SEMAPHORE (default 3 concurrent checks).

Workflow de Contrôle Synthétique

06:00 UTC APScheduler Trigger
           │
           ▼
CanaryMonitor.run_all()
           │
           ├─► For each provider in Canary Catalog (monitoring/canary_catalog.py):
           │    ├── Exécute des requêtes synthétiques sur des actifs de référence (ex. AAPL, AIR.PA)
           │    ├── Verifies response latency and HTTP status code
           │    └── Logs result into TimescaleDB `provider_health_log`
           │
           ▼
CanaryMonitor.aggregate_daily()
           │ Calcule le taux de succès sur 24h, la latence moyenne et le drapeau canary_passed
           ▼
Upsert into `provider_health_daily`
           │
           ▼
Vérification des seuils d'alerte ──► Déclenche `provider_alerts` si critique