# Temporal Cloud: Elevated latency and errors in AWS us-east-1

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-10-09 22:33 UTC · Resolved: 2026-10-10 00:51 UTC · Duration: 2.3 h
- Updates: 5 · Affected components: Amazon Web Services (AWS) - us-east-1, us-east-1
- [Vendor status page: https://stspg.io/hjqqy56lr2c3](https://stspg.io/hjqqy56lr2c3)
- [Company: Temporal Cloud](https://rewindex.com/company/temporal-cloud.md)

## Timeline of updates

- **investigating** 2026-10-09 22:33 UTC: We are investigating elevated latency and increased deadline exceeded errors affecting some namespaces in the AWS us-east-1 region. Workflows may progress more slowly than usual. Our team is actively working to identify the cause. We will provide another update within 30 minutes.
- **investigating** 2026-10-09 22:38 UTC: We have identified the cause of elevated latency affecting a subset of namespaces in AWS us-east-1. Namespaces with Multi-Region Replication enabled are being failed over to their replica region to restore service. We will provide another update within 30 minutes.
- **investigating** 2026-10-09 22:50 UTC: Mitigation remains in progress. We are continuing to fail over affected namespaces with Multi-Region Replication enabled to their replica regions. Some customers may continue to experience elevated latency while this work is underway. We will provide another update within 30 minutes.
- **monitoring** 2026-10-09 23:11 UTC: Latency and error rates in AWS us-east-1 have returned to normal levels and affected namespaces have recovered. We are continuing to monitor the region. We will provide another update once failback is complete.
- **resolved** 2026-10-10 00:51 UTC: This incident has been resolved. The AWS us-east-1 region is stable and all affected namespaces have been failed back.


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Canonical: https://rewindex.com/company/temporal-cloud/incidents/vx437s5b5myq · Markdown: https://rewindex.com/company/temporal-cloud/incidents/vx437s5b5myq.md · JSON: https://rewindex.com/api/v1/companies/temporal-cloud/incidents/vx437s5b5myq · Generated 2026-10-18T10:26:43.766Z