Temporal incident

Some customers in AWS us-east-1 may be seeing a small number of gRPC UNIMPLEMENTED errors

Resolved after 1 hour 45 minutes, affecting us-east-1, on May 4, 2026.

monitoring May 04, 2026, 11:23 PM UTC

The issue has been identified as being related to a proxy node replacement rollout which has been halted. We are currently monitoring the region but do not anticipate any new errors at this point.

Started
May 04, 2026, 10:50 PM UTC
Resolved
May 05, 2026, 12:36 AM UTC
Duration
1h 45m
Detected by Pingoru
May 04, 2026, 10:50 PM UTC

Affected components

us-east-1

Update timeline

  1. investigating May 04, 2026, 10:50 PM UTC

    We are currently investigating a small number of gRPC UNIMPLEMENTED errors being returned in the AWS us-east-1 region.

  2. monitoring May 04, 2026, 11:23 PM UTC

    The issue has been identified as being related to a proxy node replacement rollout which has been halted. We are currently monitoring the region but do not anticipate any new errors at this point.

  3. resolved May 05, 2026, 12:36 AM UTC

    This incident has been resolved.

Your product runs on more than Temporal

Add the vendors you depend on and get one message when any of them reports trouble. Free for 3 vendors, no card.

Add your stack →