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Confluent: Elevated error rates and latency on produce and consume operations on AWS us-east-1 AZ4
Confluent Cloud reported a major incident affecting produce/consume operations in AWS us-east-1 AZ4, with elevated errors, latency and lingering connectivity issues. It started 2026-05-08 01:14 UTC and resolved 2026-06-04 16:47 UTC, lasting 27 days 15 h. Confluent attributed the initial impact to EC2 power loss during a thermal event and confirmed full operation at resolution.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: Confluent Cloud
Timeline of updates
- 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.
- 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
- monitoring
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.
- monitoring
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.
- resolved
The incident has been resolved and us-east-1 (use1-az4) is fully operational.
Rewindex changes for this incident
- Major incident: Elevated error rates and latency on produce and consume operations on AWS us-east-1 AZ4 2026-05-08 01:14 UTC
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Confluent profile · Recent Confluent incidents · Markdown · JSON