Langfuse incident

Degraded ingestion for 20 projects

Resolved after 6 hours 20 minutes, affecting EU (cloud.langfuse.com) (Ingestion API) and US (us.cloud.langfuse.com) (Ingestion API) and 1 more, on September 30, 2026.

resolved Sep 30, 2026, 03:30 PM UTC

All projects ingesting as normal

Started: Sep 30, 2026, 09:10 AM UTC
Resolved: Sep 30, 2026, 03:30 PM UTC
Duration: 6h 20m
Detected by Pingoru: Sep 30, 2026, 09:10 AM UTC

Affected components

EU (cloud.langfuse.com) (Ingestion API)US (us.cloud.langfuse.com) (Ingestion API)HIPAA (hipaa.cloud.langfuse.com) (Ingestion API)JP (jp.cloud.langfuse.com (Ingestion API)

Update timeline

identified Sep 30, 2026, 09:10 AM UTC

S3 backpressure leads to S3 "please slow down" errors across projects with cm* prefix
identified Sep 30, 2026, 09:10 AM UTC

S3 backpressure leads to S3 "please slow down" errors across projects with cm* prefix
monitoring Sep 30, 2026, 09:43 AM UTC

Offending workload was isolated, performance should be back to normal for other projects
monitoring Sep 30, 2026, 09:43 AM UTC

Offending workload was isolated, performance should be back to normal for other projects
resolved Sep 30, 2026, 03:30 PM UTC

All projects ingesting as normal
resolved Sep 30, 2026, 03:30 PM UTC

All projects ingesting as normal
resolved Sep 30, 2026, 03:30 PM UTC

All projects ingesting as normal

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