According to Foresight News, Amazon AWS reported connectivity issues affecting EC2 instances in the Asia-Pacific Northeast region (AP-NORTHEAST-1) during the early hours of Pacific Time. The disruption occurred between 12:40 AM and 1:43 AM due to simultaneous interruptions of both the main and backup power supplies in a single availability zone (apne1-az4).
The connectivity problem impacted the normal operation of EC2 instances, leading to increased error rates and delays for customers using instances in the affected area. Additionally, other AWS APIs relying on these EC2 instances may have experienced disruptions.
AWS engineers intervened automatically within minutes and promptly began troubleshooting and implementing corrective measures. The company assured that the issue is unlikely to recur. Currently, only a small number of instances remain deployed on hardware affected by the power outage.
Efforts are ongoing to restore all impacted instances and volumes. However, AWS recommends replacing any instances or storage volumes that have not yet been recovered to ensure immediate restoration.
The issue has been resolved, and services have returned to normal operation. At present, only Amazon Relational Database Service is reported to be affected.