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ClickHouse · Data and observabilityAug 2, 2026, 14:44 UTC 3 months ago

We are investigating an issue in Azure eastus2 region, impacting replicas in one specific Availability Zone

MinorNot disclosedUpdated 47d ago
Aug 2, 14:44 UTCAug 2, 19:34 UTC
Duration
4h 50m
Impact
Minor
Root cause
Not disclosed
ClickHouse, 90 days
15 incidents
Affected
Not listed by the vendor.
Status page

Final update

The issue is now resolved. All services are back to normal.

Timeline

  1. Resolved · Aug 2, 19:34 UTC
    The issue is now resolved. All services are back to normal.
  2. Monitoring · Aug 2, 19:05 UTC
    The issue seems to be resolved on the Azure side. We are monitoring before we resolve the issue.
  3. Investigating · Aug 2, 17:02 UTC
    We are still working closely with CSP support to figure out the path forward. The Azure support confirmed there is an issue with some components provided by CSP, investigation ongoing.
  4. Identified · Aug 2, 16:16 UTC
    We still see problematic compute nodes provided by CSP, so remediation may take more time. We working closely with Azure support.
  5. Identified · Aug 2, 15:42 UTC
    We are applying a change, unblocking the pending replicas. We already see sign of improvements for services that have the change applied.
  6. Investigating · Aug 2, 14:44 UTC
    We are aware about service degradation in Azure eastus2 region, impacting only one Availability Zone. New service provisioning time might be delayed. Customers may see increased latency.

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