Larger hosted runners experiencing delays
Incident
Report for GitHub
Resolved
On November 11, 2025, between 16:28 UTC and 20:54 UTC, GitHub Actions larger hosted runners experienced degraded performance, with 0.4% of overall workflow runs and 8.8% of larger hosted runner jobs failing to start within 5 minutes. The majority of impact was mitigated by 18:44, with a small tail of organizations taking longer to recover.
The impact was caused by the same database infrastructure issue that caused similar larger hosted runner performance degradation on October 23rd, 2025. In this case, it was triggered by a brief infrastructure event in this incident rather than a database change.
Through this incident, we identified and implemented a better solution for both prevention and faster mitigation. In addition to this, a durable solution for the underlying database issue is rolling out soon.
The impact was caused by the same database infrastructure issue that caused similar larger hosted runner performance degradation on October 23rd, 2025. In this case, it was triggered by a brief infrastructure event in this incident rather than a database change.
Through this incident, we identified and implemented a better solution for both prevention and faster mitigation. In addition to this, a durable solution for the underlying database issue is rolling out soon.
Update
Mitigation is complete and all new jobs targeting Larger Hosted Runners should not experience delays.
Update
The team is continuing to apply the mitigation for Large Hosted Runners. We will provide updates as we progress.
Update
The team continues to investigate delays with Large Hosted Runners. We will continue providing updates on the progress towards mitigation.
Investigating
We are currently investigating this issue.
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