ClickHouse incident

AWS ap-south-1 degraded operations

Resolved after 1 hour 32 minutes, affecting ap-south-1, on January 30, 2026.

resolved Jan 30, 2026, 01:27 PM UTC

The issue is fully resolved. The latest data in ControlPlane UI monitoring dashboards was backfilled and should be available. The issue seems to be related to networking issues on underlying VMs. Team is investigating the root cause to make sure it won't happen again or in other regions.

Started
Jan 30, 2026, 11:55 AM UTC
Resolved
Jan 30, 2026, 01:27 PM UTC
Duration
1h 32m
Detected by Pingoru
Jan 30, 2026, 11:55 AM UTC

Affected components

ap-south-1

Update timeline

  1. investigating Jan 30, 2026, 11:55 AM UTC

    We are investigating issue in AWS ap-south-1 region where: - Admin operations on instances might be delayed or not progressing - Billing metrics not updated - Some dashboards in Control Plane UI not loading or loading slowly

  2. identified Jan 30, 2026, 12:08 PM UTC

    The team has identified the issue and working on the fix. ClickHouse instances are expected to be reachable and working (except autoscaling functionality).

  3. monitoring Jan 30, 2026, 12:56 PM UTC

    We are seeing signs of recovery, and closely monitoring.

  4. monitoring Jan 30, 2026, 01:16 PM UTC

    User dashboards and autoscaling operations should be recovering now. Old data is already available, last hours are being backfilled.

  5. resolved Jan 30, 2026, 01:27 PM UTC

    The issue is fully resolved. The latest data in ControlPlane UI monitoring dashboards was backfilled and should be available. The issue seems to be related to networking issues on underlying VMs. Team is investigating the root cause to make sure it won't happen again or in other regions.

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