Dash0 incident

Transient failures in alert rule evaluations in `eu-west-1`

Minor Resolved View vendor source →

Dash0 experienced a minor incident on July 20, 2026, lasting —. The incident has been resolved; the full update timeline is below.

Started
Jul 20, 2026, 09:14 PM UTC
Resolved
Jul 20, 2026, 09:14 PM UTC
Duration
—
Detected by Pingoru
Jul 20, 2026, 09:14 PM UTC

Update timeline

  1. monitoring Jul 20, 2026, 07:40 PM UTC

    Status: Monitoring Alert rule evaluations for customers in the eu-west-1 region may have been impacted between 19:03:45 UTC and 19:30:45 UTC. During this time, some alert rules may have been skipped, and some customers may have received "Too many simultaneous queries for user ruler" errors, depending on their rule configuration. The issue has been mitigated, and we are continuing to monitor the system to ensure normal operation.

  2. monitoring Jul 20, 2026, 08:07 PM UTC

    Status: Monitoring Alert rule evaluations for customers in the eu-west-1 region may have been impacted between 19:​03:​45 UTC and 19:​30:​45 UTC. During this time, some alert rules may have been skipped during that time. The issue has been mitigated, and we are continuing to monitor the system to ensure normal operation.

  3. resolved Jul 20, 2026, 09:14 PM UTC

    Status: Resolved Incident has been mitigated, an RCA will follow.