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

- Impact (vendor’s label): minor
- Status: resolved · edited after publishing
- Started: 2026-10-21 11:48 UTC · Resolved: 2026-10-21 13:26 UTC · Duration: 1.6 h
- Updates: 4 · Affected components: Alerting and SLO - AWS Germany - prod-eu-west-2: Rule Evaluation, AWS Germany - prod-eu-west-2: Rule Evaluation
- [Vendor status page: https://stspg.io/xk032xv99zbr](https://stspg.io/xk032xv99zbr)
- [Company: Grafana Cloud](https://rewindex.com/company/grafana-cloud.md)

## Timeline of updates

- **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.
- **identified** 2026-10-21 12:12 UTC: The root cause of the issue has been indentified and we are working on the remediation steps.
- **monitoring** 2026-10-21 13:12 UTC: Remediation measures have been applied, and we are monitoring the recovery.
- **resolved** 2026-10-21 13:26 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2026-10-21 12:13 UTC: [Incident updated: Increased timeout errors in alert rule evaluations (AWS Germany, prod-eu-west-2)](https://rewindex.com/change/r908e77bcb2213b.md)
- 2026-10-21 13:13 UTC: [Incident updated: Increased timeout errors in alert rule evaluations (AWS Germany, prod-eu-west-2)](https://rewindex.com/change/r96ecf232c6bd36.md)
- 2026-10-21 13:33 UTC: [Incident updated: Increased timeout errors in alert rule evaluations (AWS Germany, prod-eu-west-2)](https://rewindex.com/change/redbbf7da49f12d.md)


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Canonical: https://rewindex.com/company/grafana-cloud/incidents/bpld6z1v27qx · Markdown: https://rewindex.com/company/grafana-cloud/incidents/bpld6z1v27qx.md · JSON: https://rewindex.com/api/v1/companies/grafana-cloud/incidents/bpld6z1v27qx · Generated 2026-10-22T00:33:21.567Z