# CockroachDB: Failures on cluster operations

- Impact (vendor’s label): major
- Status: resolved
- Started: 2023-12-22 02:01 UTC · Resolved: 2023-12-23 02:46 UTC · Duration: 25 h
- Updates: 4
- [Vendor status page: https://stspg.io/0z8gzk7lp1bf](https://stspg.io/0z8gzk7lp1bf)
- [Company: CockroachDB](https://rewindex.com/company/cockroachdb.md)

## Summary

CockroachDB reported a major incident affecting AWS cluster operations, including creation and modification, starting 2023-12-22 02:01 UTC and lasting 24 h 45 min. Impact later narrowed to vertical scaling failures and delays. Resolved at 2023-12-23 02:46 UTC, the vendor stated all cluster operations should succeed and monitoring continued. _(machine-written, sol)_
## Timeline of updates

- **identified** 2023-12-22 02:01 UTC: We are currently seeing some operations on AWS clusters failing, including cluster creation and modification. We've investigated and found a root cause and are working on a mitigation.
- **identified** 2023-12-22 17:07 UTC: We've identified a root cause and are working on a solution. Current impact is limited to vertical scaling of AWS clusters only.
- **monitoring** 2023-12-22 22:27 UTC: Vertical scaling of clusters on AWS may take longer than expected.
- **resolved** 2023-12-23 02:46 UTC: All cluster operations should now succeed. We are monitoring for any additional failures.

## Rewindex changes for this incident

- 2023-12-22 02:01 UTC: [Major incident: Failures on cluster operations](https://rewindex.com/change/ic9751b0e77be33.md)


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Canonical: https://rewindex.com/company/cockroachdb/incidents/7jdp3zd08knb · Markdown: https://rewindex.com/company/cockroachdb/incidents/7jdp3zd08knb.md · JSON: https://rewindex.com/api/v1/companies/cockroachdb/incidents/7jdp3zd08knb · Generated 2026-10-18T09:36:22.987Z