Graham McIntie
90af7ac0d1
- StormDetector GenServer: sliding-window per org, >10 alerts/min triggers suppression mode with single summary notification - Site correlation: >3 devices at same site down within 120s creates single 'Site Outage' alert instead of N individual alerts - Notification rate limiter: max 5 per user per 15min window, excess batched into digest via AlertDigestWorker - PagerDuty client: retry with exponential backoff on 429, respects Retry-After header - Batch maintenance checks: new Maintenance.devices_in_maintenance/1 takes list of device_ids, returns MapSet (single query vs N queries) - Migration: alert_storms, site_outages, notification_digests tables plus site_outage_id/storm_suppressed on alerts - DeviceMonitorWorker integrates storm detection and site correlation before creating alerts - Tests for StormDetector, SiteCorrelation, NotificationRateLimiter, and batch maintenance checks |
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