Astronomer incident
Incorrect scheduler heartbeat metrics being reported
Astronomer experienced a notice incident on August 18, 2026, lasting 23d 3h. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Aug 18, 2026, 06:51 PM UTC
Our metrics pipeline is falsely displaying spikes in scheduler heartbeat metrics, despite underlying component health.
- identified Sep 08, 2026, 06:31 PM UTC
We've identified the cause of the false availability alerts that have been showing the Astro UI. This is a degradation affecting dashboard and monitoring visibility only. Task execution, scheduling, and workflow processing have not been impacted. The issue is the result of a metrics reporting bug that has been intermittently flagging scheduler heartbeats as missed when they were not. We are actively rolling out a fix that corrects how these metrics are reported.
- resolved Sep 10, 2026, 10:19 PM UTC
This issue is now resolved.