Some customers in AWS us-east-1 experienced a small number of gRPC UNIMPLEMENTED errors

Event timeline

How this incident unfolded, from the official status page.

1. Identified

   5 months ago

   Temporal

   Some customers in AWS us-east-1 experienced a small number of gRPC UNIMPLEMENTED errors today from 19:40 to 20:05 UTC. We have identified a root cause and are currently working towards a permanent fix.

2. Monitoring

   5 months ago

   Temporal

   The gRPC UNIMPLEMENTED errors previously observed have been mitigated. We are continuing to monitor the situation and are working towards a permanent fix at this time.

3. Monitoring

   5 months ago

   Temporal

   Service has remained stable and we are continuing to monitor the situation. We will continue to provide updates as they become available.

4. Monitoring

   5 months ago

   Temporal

   We have confirmed the service is now stable and are now working to ensure a permanent fix is in place to prevent any recurrence. We will continue to monitor for errors until the fix is deployed.

5. Monitoring

   5 months ago

   Temporal

   The service remains stable. We are continuing to monitor closely while work progresses on a permanent fix to prevent recurrence.

6. Monitoring

   5 months ago

   Temporal

   The service continues to operate normally. We will provide additional updates as they become available.

7. Resolved

   5 months ago

   Temporal

   The service has remained stable since the initial behavior was observed 5/28 19:40 to 20:05 UTC. A permanent fix for the region is now in-progress.