Slow trace data retirival across API and UI in EU

Resolved·Degraded performance

should be finally resolved

Wed, Oct 21, 2026, 05:39 AM

(9 hours ago)

Affected components

03:15 AM

05:39 AM

Public API

LLM-as-a-judge

Updates

Resolved

should be finally resolved

Wed, Oct 21, 2026, 05:39 AM

Monitoring

Looks like some timeout are still occurring. Monitoring.

Wed, Oct 21, 2026, 04:56 AM(43 minutes earlier)

Resolved

All replicas look healthy again

Wed, Oct 21, 2026, 04:45 AM(10 minutes earlier)

Identified

Slow clickhouse read replicas affecting performance across the service. Draining and replacing them.

Wed, Oct 21, 2026, 04:31 AM(13 minutes earlier)

Investigating

Slow traces data serving across API and UI

Wed, Oct 21, 2026, 03:46 AM(45 minutes earlier)

Langfuse