Internal reference document — depth 5
The batch job runs at 03:00 UTC and archives records beyond the retention window.
Circuit breaker opens after 50 % error rate over a 10-second sliding window.
Health checks fire every 10 seconds; three failures mark the instance unhealthy.
Prometheus metrics are scraped every 15 seconds and retained for 30 days.
Snapshots are taken hourly and replicated to the secondary availability zone.
Log rotation is configured for 7 days with gzip compression after the first 24 hours.