Service is operating normally: [RESOLVED] Increased Error Rate and Latency

Starting May 7 4:20 PM PDT, we experienced increased impaired EC2 instances and degraded EBS volumes in a single facility (data center) within a single Availability Zone (use1-az4) in the US-EAST-1 Region. The issue was caused by a thermal event resulting in a loss of power. As part of our recovery effort, we shifted traffic away from the impacted Availability Zone for most services at May 7 5:06 PM.

AWS services, like Elastic Load Balancing, Elastic Kubernetes Service, ElastiCache, Redshift...