Outage in Langfuse
Delayed LLM as a judge execution
Resolved Minor
May 26, 2026 - Started 7 days ago
- Lasted about 4 hours
Incident Report
We currently see a delay of LLM as a judge execution for trace-level evaluations by 30 minutes. We currently look into the issue to make sure we execute evals in time. Observation level evaluations are not impacted as they are on a new code path and more scalable by an order of magnitude. Please migrate to observation level evaluations.
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Latest Updates ( sorted recent to last )
IDENTIFIED
7 days ago - at 05/26/2026 07:51PM
We have identified the root issue and are scaling our infrastructure to work through the evaluation backlog.
INVESTIGATING
7 days ago - at 05/26/2026 05:52PM
We currently see a delay of LLM as a judge execution for trace-level evaluations by 30 minutes. We currently look into the issue to make sure we execute evals in time. Observation level evaluations are not impacted as they are on a new code path and more scalable by an order of magnitude. Please migrate to observation level evaluations.
Latest Langfuse outages
[EU] Elevated error rates and delayed inserts - 1 day ago
[US] Delayed LLM as a judge evaluation - 5 days ago
LLM as a Judge execution is delayed - 6 days ago
UI loads slowly and returns errors - 12 days ago
Errors and latencies on ingestion APIs - 25 days ago
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