GitHub: Actions Larger Runner Jobs for some customers may be slow to start
Timeline of updates
- investigating
We are investigating reports of impacted performance for some GitHub services.
- monitoring
The degradation has been mitigated. We are monitoring to ensure stability.
- resolved
On September 14, 2026, between 16:10 and 19:01 UTC, some customers using GitHub Actions larger runners experienced longer-than-normal wait times for jobs to start. During this period, 5.7% of larger-runner jobs were affected.
A routine expansion of our compute capacity exposed a bug in how our provisioning system handled capacity records when selecting where to create runner virtual machines. This slowed the creation of new runners, leaving insufficient runner capacity to start affected jobs promptly.
We restored normal provisioning by correcting the affected capacity records. We have fixed the underlying capacity-selection bug to prevent this failure from recurring. We have also added alerts for VM-record creation failures associated with this capacity issue.
Archive proof
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How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
c8fe8f0960876330…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by GitHub, started 2026-09-14 18:40 UTC, resolved after 55 min, 3 update(s).
- Title
- Actions Larger Runner Jobs for some customers may be slow to start
- Vendor
- GitHub
- Date
- URL
- https://rewindex.com/company/github/incidents/kzh5j0mt7qwc
GitHub profileRecent GitHub incidentsAll outages on September 14, 2026GitHub in September 2026MarkdownJSON