Incident with Actions
This summary is created by Generative AI and may differ from the actual content.
Overview
GitHub Actions experienced degraded performance on February 23, 2026, between 15:00 UTC and 17:00 UTC, with 1.8% of Actions workflow runs experiencing delayed starts with an average delay of 15 minutes. The issue was detected at 16:17 UTC and posted at 17:03 UTC.
Impact
1.8% of Actions workflow runs experienced delayed starts with an average delay of 15 minutes
Trigger
A connection rebalancing event in the internal load balancing layer
Detection
Investigating reports of degraded performance for Actions at Feb 23, 2026 - 16:17 UTC
Resolution
Tuning connection rebalancing behavior to spread client reconnections more gradually during load balancer reloads, evaluating improvements to site-level traffic affinity to eliminate the uneven distribution at its source, overprovisioning critical paths to prevent any impact if a similar event occurs before those workstreams finish, and enhancing monitoring to detect capacity imbalances proactively
Root Cause
Uneven traffic distribution across sites led to request throttling due to a connection rebalancing event in the internal load balancing layer