Grafana Cloud outage, 21 October 2026

Possible incorrect evaluation of Synthetic Monitoring alert rules in cluster prod-us-east-3

Started
Resolved
21 Oct 2026, 07:10 UTC
Impact
Not stated
Affected
AWS US East - prod-us-east-3: API, AWS US East - prod-us-east-3: Public Probes

Is this still happening?

No. Grafana Cloud marked this incident resolved on 21 Oct 2026, 07:10 UTC.

Right now: Grafana Cloud reports all systems operational. (as of 26 Oct, 03:49 UTC) Live Grafana Cloud status

Last update from Grafana Cloud

As of 21 Oct, 06:20 am UTC, we became aware of an issue with possible incorrect evaluation of Synthetic Monitoring alert rules in cluster prod-us-east-3. The issue has been ended 07:00 am UTC

21 Oct 2026, 07:10 UTC

Read the full incident on the official Grafana Cloud status page

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Earlier incidents with the same affected part or wording - useful to see how long this kind of problem usually takes.

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  2. , resolved after 1 h 16 min

    Increased Execution Time for Browser Checks in Synthetic Monitoring

  3. , resolved after 4 h 49 min

    Metric reads and rule evaluations are degraded in mimir-prod-66

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