# Grafana Cloud: Increased timeout errors in alert rule evaluations (AWS Germany, prod-eu-west-2)

- Provider: [Grafana Cloud](https://outages.cc/grafana.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-10-21 11:48 UTC
- Resolved: 2026-10-21 13:26 UTC (lasted 1 h 38 min)
- Components: AWS Germany - prod-eu-west-2: Rule Evaluation, Alerting and SLO - AWS Germany - prod-eu-west-2: Rule Evaluation
- Official update: https://stspg.io/xk032xv99zbr

## Updates from Grafana Cloud

### resolved, 2026-10-21 13:26 UTC

This incident has been resolved.

### monitoring, 2026-10-21 13:12 UTC

Remediation measures have been applied, and we are monitoring the recovery.

### identified, 2026-10-21 12:12 UTC

The root cause of the issue has been indentified and we are working on the remediation steps.

### investigating, 2026-10-21 11:48 UTC

Since approximately 20:30 UTC on October 20, we have observed an increase in alert rule evaluation errors affecting rules that query Grafana Cloud Prometheus (Mimir) data sources in Cluster AWS Germany. Our engineering team is actively investigating and working on remediation.