ClickHouse incident

We are investigating an issue affecting Azure eastus2 region

Minor Resolved View vendor source →

ClickHouse experienced a minor incident on September 23, 2026 affecting eastus2, lasting 30m. The incident has been resolved; the full update timeline is below.

Started
Sep 23, 2026, 03:28 PM UTC
Resolved
Sep 23, 2026, 03:59 PM UTC
Duration
30m
Detected by Pingoru
Sep 23, 2026, 03:28 PM UTC

Affected components

eastus2

Update timeline

  1. investigating Sep 23, 2026, 03:28 PM UTC

    Status: Investigating Investigating delays to provisioning and autoscaling We are investigating an issue affecting our Kubernetes infrastructure in Azure eastus2 region. Some customers may experience delays with provisioning and autoscaling of ClickHouse clusters. We are working closely with Azure support to restore normal behavior. We’ll provide another update within 30 minutes, or sooner if we have more information. Affected components eastus2 (Degraded performance)

  2. monitoring Sep 23, 2026, 03:36 PM UTC

    Status: Monitoring We have identified the cause of the disruption and already applying the remediation. We will monitor for recovery and send update as soon as it is fully recovered. Affected components eastus2 (Degraded performance)

  3. resolved Sep 23, 2026, 03:59 PM UTC

    Status: Resolved The configuration change was reverted and we do not observe impact anymore. The ClickHouse Cloud team will work on preventing similar situations in future. Affected components eastus2 (Operational)