Between 7:59 AM and 10:05 AM PST, we experienced increased error rates with the CloudWatch GetMetricStatistics and GetMetricData APIs when requesting metrics older than 3 hours in the US-EAST-1 Region. CloudWatch alarms may have transitioned into “INSUFFICIENT_DATA” state if the period of the alarm was longer than 3 hours. Querying metrics less than 3 hours as well as publishing metrics were unimpacted. The issue has been resolved and the service is operating normally.
Recently, we experienced an issue that caused loss of connectivity and reboots for a subset of Windows WorkSpaces in the US-EAST-1 Region. The issue has been resolved and the service is operating normally.