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ClickHouse · Data and observabilitySep 14, 2026, 20:36 UTC

Distributed Cache performance degradation in AWS us-east-1

MinorNot disclosedUpdated 15h ago
Sep 14, 20:36 UTCSep 15, 00:35 UTC
Duration
3h 59m
Impact
Minor
Root cause
Not disclosed
ClickHouse, 90 days
16 incidents
Affected
Not listed by the vendor.
Status page

Final update

This incident has been resolved. Distributed Cache performance in the region is back to normal. Please contact ClickHouse Support if any services in the Distributed Cache Private Preview are experiencing any remaining issues:

Timeline

  1. Resolved · Sep 15, 00:35 UTC
    This incident has been resolved. Distributed Cache performance in the region is back to normal. Please contact ClickHouse Support if any services in the Distributed Cache Private Preview are experiencing any remaining issues:
  2. Monitoring · Sep 14, 22:41 UTC
    Impacted services have been updated and are now fully operational. ClickHouse is monitoring.
  3. Identified · Sep 14, 21:28 UTC
    ClickHouse has identified the cause and proceeding with remedying impacted services.
  4. Investigating · Sep 14, 20:36 UTC
    ClickHouse is investigating degraded Distributed Cache performance affecting multiple ClickHouse Cloud customers. Distributed Cache is a feature currently in Private Preview. We will provide further updates as they become available.

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Full history

From vendors' own status pages and disclosures. Times as reported. Logos via logo.dev; trademarks belong to their owners.

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