# Pinecone: [Serverless][Azure][eastus2] 5xx errors on some read and write operations

- Impact (vendor’s label): major
- Status: resolved
- Started: 2025-10-21 17:57 UTC · Resolved: 2025-10-21 19:24 UTC · Duration: 1.4 h
- Updates: 4 · Affected components: Azure eastus2, Serverless Indexes - Azure eastus2
- [Vendor status page: https://stspg.io/3mcc2zg8y9pv](https://stspg.io/3mcc2zg8y9pv)
- [Company: Pinecone](https://rewindex.com/company/pinecone.md)

## Summary

Pinecone reported a major incident affecting Serverless Indexes in Azure eastus2, with 5xx errors on some read and write operations. It started at 2025-10-21 17:57 UTC and resolved at 2025-10-21 19:24 UTC, lasting 1 h 26 min. A fix was implemented; no cause was stated. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2025-10-21 17:57 UTC: We are currently investigating this issue.
- **identified** 2025-10-21 18:36 UTC: The issue has been identified and a fix is being implemented.
- **monitoring** 2025-10-21 19:03 UTC: A fix has been implemented and we are monitoring the results.
- **resolved** 2025-10-21 19:24 UTC: This incident has been resolved.

## Rewindex changes for this incident

- 2025-10-21 17:57 UTC: [Major incident: \[Serverless\]\[Azure\]\[eastus2\] 5xx errors on some read and write operations](https://rewindex.com/change/i3d45c76d19e40f.md)


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Canonical: https://rewindex.com/company/pinecone/incidents/rnj8t1pwnwt5 · Markdown: https://rewindex.com/company/pinecone/incidents/rnj8t1pwnwt5.md · JSON: https://rewindex.com/api/v1/companies/pinecone/incidents/rnj8t1pwnwt5 · Generated 2026-10-18T10:31:54.808Z