# Langfuse: Degraded LLMaJ execution in EU

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-08-18 10:06 UTC · Resolved: 2026-08-18 13:25 UTC · Duration: 3.3 h
- Updates: 4 · Affected components: LLM-as-a-judge
- [Vendor status page: https://status.langfuse.com/incidents/01M0AC8PM24HN9TVHRWR47G2R2](https://status.langfuse.com/incidents/01M0AC8PM24HN9TVHRWR47G2R2)
- [Company: Langfuse](https://rewindex.com/company/langfuse.md)

## Timeline of updates

- **investigating** 2026-08-18 12:06 UTC: Eval execution in EU region is taking longer than usual
- **identified** 2026-08-18 12:27 UTC: evaluation throughput was overwhelmed by a slow tenant/model workload, with lock-expiry retries multiplying work; the concurrent worker rollout prolonged the incident.
- **monitoring** 2026-08-18 12:47 UTC: our autoscaling responded slower than expected, but responded nonetheless. the backlog is draining
- **resolved** 2026-08-18 13:25 UTC: Steady throughput for the last 30 minutes. Delay \< 5min.


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Canonical: https://rewindex.com/company/langfuse/incidents/01M0AC8PM24HN9TVHRWR47G2R2 · Markdown: https://rewindex.com/company/langfuse/incidents/01M0AC8PM24HN9TVHRWR47G2R2.md · JSON: https://rewindex.com/api/v1/companies/langfuse/incidents/01M0AC8PM24HN9TVHRWR47G2R2 · Generated 2026-10-20T00:51:23.138Z