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Outage

AWS US-EAST-1 Service Disruption Report - ECS, EC2, and Dependent Services – October 28, 2025

AWS US-EAST-1 Service Disruption Report - ECS, EC2, and Dependent Services – October 28, 2025

AWS experienced a significant outage in the US-EAST-1 Region on October 28, 2025, affecting ECS, EC2, and several dependent services such as Fargate, EMR Serverless, MWAA, and Glue. The incident lasted nearly 14 hours and was caused by control-plane contention within ECS’s internal infrastructure.

✅ [RESOLVED] AWS US-EAST-1 Outage: Full Post-Incident Report and Timeline

✅ [RESOLVED] AWS US-EAST-1 Outage: Full Post-Incident Report and Timeline

AWS confirms full recovery after the US-EAST-1 outage that began with a DynamoDB DNS failure and escalated into EC2 and load balancer impairments. Full timeline, analysis, and engineering lessons inside.

⚙️ AWS US-EAST-1 Outage: Full Technical Breakdown of Impacted Services

⚙️ AWS US-EAST-1 Outage: Full Technical Breakdown of Impacted Services

The disruption began with a DNS resolution failure, escalated into EC2 internal network issues, and peaked when an internal subsystem monitoring the health of AWS load balancers malfunctioned — causing false health signals and throttled instance launches.