Major
Resolved
Service unavailable
01:38 UTC
+0 min
Investigating
Web App is not responding. We are investigating.
02:21 UTC
+43 min
Identified
The primary database failover did not complete. We are promoting a healthy replica.
03:12 UTC
+1 h 34 min
Monitoring
The replica has been promoted and Web App is serving traffic again. We are monitoring.
04:03 UTC
+2 h 25 min
Resolved
Web App has been stable since the failover. The incident is resolved.
Root cause
During routine maintenance the primary database failed over to a replica that was still catching up, and connections were refused until it was promoted manually. Failover now waits for replicas to be in sync.