Pinecone: [Serverless][GCP][europe-west4] 5xx errors on read and write operations for some indexes

Impact: majorStatus: resolvedStarted 2025-12-15 10:39 UTCResolved 2025-12-15 22:02 UTC (11 h)4 updatesSource: stspg.io

Summary

Pinecone reported a major outage causing 5xx errors on read and write operations for some Serverless indexes in GCP europe-west4. It started at 2025-12-15 10:39 UTC and was resolved at 2025-12-15 22:02 UTC, lasting 11 h 22 min; a fix was implemented, but no cause was stated.

Machine-written from the archived incident (Sol). Check the timeline before relying on it.

Affected components: GCP europe-west4Serverless Indexes - GCP europe-west4

Timeline of updates

investigating2025-12-15 10:39 UTC
We are currently investigating this issue.
identified2025-12-15 14:34 UTC
The issue has been identified and a fix is being implemented.
monitoring2025-12-15 21:20 UTC
A fix has been implemented and we are monitoring the results.
resolved2025-12-15 22:02 UTC
This incident has been resolved.

Rewindex changes for this incident

Major incident: [Serverless][GCP][europe-west4] 5xx errors on read and write operations for some indexes 2025-12-15 10:39 UTC

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Pinecone profile · Recent Pinecone incidents · Markdown · JSON