EU ingestion lag increase

Incident Report for PostHog

Resolved

We had one of the ClickHouse nodes suffering connection issues with the rest of the cluster. After solving them, the lag has been already solved and it's back to normal.

Posted Aug 20, 2024 - 17:50 UTC

Investigating

We have detected an issue with sessions tables having too many parts and ClickHouse not being able to keep the pace doing merges, which is causing ingestion lag.

We are currently investigating what is the root cause.

Posted Aug 20, 2024 - 16:46 UTC

This incident affected: EU Cloud 🇪🇺 (Event and Data Ingestion).