Astronomer incident

Issues with EC2 scale up time in AWS us-east-1, use1-az2 Availability Zone causing node scale up issues for some deployment in AWs us-east-1

Minor Resolved View vendor source →

Astronomer experienced a minor incident on October 28, 2025 affecting Scheduling and Running DAGs and Tasks and Scheduling and Running DAGs and Tasks, lasting 5h 46m. The incident has been resolved; the full update timeline is below.

Started
Oct 28, 2025, 06:05 PM UTC
Resolved
Oct 28, 2025, 11:51 PM UTC
Duration
5h 46m
Detected by Pingoru
Oct 28, 2025, 06:05 PM UTC

Affected components

Scheduling and Running DAGs and TasksScheduling and Running DAGs and Tasks

Update timeline

  1. investigating Oct 28, 2025, 06:05 PM UTC

    We are currently investigating this issue and have been notified by AWS of issues with VM scale ups in AWS us-east-1, specifically the use1-az2 AZ. We are working to identify affected deployments, as well as on mitigations.

  2. monitoring Oct 28, 2025, 07:39 PM UTC

    Customer deployments should no longer be affected, we are monitoring to confirm resolution.

  3. resolved Oct 28, 2025, 11:51 PM UTC

    This incident has been resolved.