Elevated error rates and latency on produce and consume operations on AWS us-east-1 AZ4

Incident Report for Confluent Cloud

Resolved

The incident has been resolved and us-east-1 (use1-az4) is fully operational.
Posted Jun 04, 2026 - 16:47 UTC

Update

AWS has reported the underlying infrastructure issue in us-east-1 (use1-az4) as resolved. However, some Confluent Cloud customers in the affected availability zone continue to experience connectivity issues.

Confluent is actively investigating and working to restore full connectivity for impacted customers.
Posted May 12, 2026 - 18:51 UTC

Update

AWS has resolved the underlying infrastructure issue in us-east-1 (use1-az4). The majority of Confluent Cloud services have recovered and are operating normally.

We are continuing to monitor for any lingering effects and verifying full service restoration.
Posted May 09, 2026 - 13:19 UTC

Monitoring

We are monitoring the health of impacted brokers in the affected availability zone. More details about the thermal event on the AWS status page: https://health.aws.amazon.com/health/status
Posted May 08, 2026 - 01:55 UTC

Investigating

We are investigating data plane impact (produce/consume) resulting from elevated error rates and latencies from AWS us-east-1 resources in AZ4. EC2 instances hosted on this availability zone are impaired by loss of power during an ongoing thermal event.
Posted May 08, 2026 - 01:14 UTC
This incident affected: Confluent Cloud.