Database Connection Pool Exhaustion Causing API Timeouts

We are receiving reports of elevated error rates and timeouts across our API endpoints. Our monitoring systems show a spike in 503 errors starting at 14:30 UTC. The team is investigating the root cause.

Root cause identified: A recent deployment introduced a database connection leak in the user authentication module. Connections are not being properly released back to the pool after authentication requests.

Hotfix deployed to production. We have rolled back the problematic deployment and applied a patch that ensures proper connection cleanup. Monitoring connection pool metrics closely.

All metrics returning to normal levels. Error rate now below 1%, average response time at 145ms (baseline: 120ms). Connection pool stable at 150/500. Continuing to monitor for any anomalies.

Incident resolved. All services have returned to normal operation. Error rates and response times are within acceptable thresholds. We will publish a detailed postmortem within 48 hours.