Major Incident Postmortem & Chronology
Incident Resolved
Incident ID: INC-20260908
Severity: P1 Critical
Impact Duration: 42 minutes
Copy (MD)
Time to Detect (TTD)
2m 14s
Time to Mitigate (TTM)
18m 40s
Total Downtime
42m 00s
Data Loss Rate
0.00%
Traffic Restored & Canary Passes All Health Checks
14:42:10 UTC
Failover cluster in us-west fully assumed traffic. Latency returned to 38ms baseline. Incident marked resolved.
Initiated Automated Traffic Drain to Backup Region
14:18:25 UTC
SRE team executed Runbook #104. Edge CDN redirected 100% of ingress requests to secondary availability zone.
[ACTION] Cloudflare route drain: applied zone us-east-01 -> weight: 0 [STATUS] 200 OK: Traffic migrated to us-west-02
Database Connection Pool Exhaustion Triggered
14:00:10 UTC
High memory spike caused unindexed analytical query to hold 100% of active pooled connections, blocking HTTP ingress.