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

- Provider: [Confluent Cloud](https://down.guide/confluent)
- Level: confirmed
- Impact: Partial outage
- lasted 27d 15h
- started 2026-05-08 01:14 UTC
- Confluent Cloud
- us, us-east-1
- id: DWN-d262dfc85e
- Official page: https://stspg.io/br3hbb97ft7r

## Updates from Confluent Cloud
### 2026-05-08 01:14 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.

### 2026-05-08 01:55 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

### 2026-05-09 13:19 UTC: 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.

### 2026-05-12 18:51 UTC: 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.

### 2026-06-04 16:47 UTC: resolved
The incident has been resolved and us-east-1 (use1-az4) is fully operational.

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