ClickHouse Cloud incident: AWS eu-central-1 performance degradation

1. resolvedJul 16, 2026, 01:59 UTC

   AWS has mitigated the disruption affecting the eu-central-1 availability zone. We will continue monitoring to ensure stability.

2. investigatingJul 15, 2026, 23:33 UTC

   We are seeing degraded performance in AWS eu-central-1 starting around 4 pm PT. <https://health.aws.amazon.com/health/status>

What APIStatus.watch saw

Our 5-minute checks didn't record a change in ClickHouse Cloud's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

Other services with incidents at the same time

Overlapping incidents aren't necessarily related.

• Mux: video live and playback issuesCritical · Jul 15, 2026, 19:13 UTC
• LaunchDarkly: LaunchDarkly is operational but customer action may be requiredMinor · Jul 10, 2026, 16:00 UTC
• Vercel: Errors accessing teams that require 2FAMinor · Jul 15, 2026, 23:04 UTC
• Confluent Cloud: Kafka cluster performance degradation for clusters in AWS region eu-central-1Minor · Jul 15, 2026, 23:33 UTC

How often does ClickHouse Cloud have incidents?

ClickHouse Cloud reported 16 incidents in the last 90 days, 2 of them major or critical. A typical incident lasted 2h 28m. See ClickHouse Cloud's uptime and incident history