# GitHub: Incident affecting actions-runner-controller

> GitHub status incident “Incident affecting actions-runner-controller” on 2026-01-20: impact minor (vendor’s label), 21 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/github/incidents/m4xfyzd8mn2n
Last updated: 2026-01-20T16:23:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-01-20 16:02 UTC · Resolved: 2026-01-20 16:23 UTC · Duration: 21 min
- Updates: 1
- [Vendor status page: https://www.githubstatus.com/incidents/m4xfyzd8mn2n](https://www.githubstatus.com/incidents/m4xfyzd8mn2n)
- [Company: GitHub](https://rewindex.com/company/github.md)

## Timeline of updates

- **resolved** 2026-01-20 16:23 UTC: On January 20, 2026, between 14:39 UTC and 16:03 UTC, actions-runner-controller users experienced a 1% failure rate for API requests managing GitHub Actions runner scale sets. This caused delays in runner creation, resulting in delayed job starts for workflows targeting those runners. The root cause was a service to service circuit breaker that incorrectly tripped for all users when a single user hit rate limits for runner registration. The issue was mitigated by bypassing the circuit breaker, and users saw immediate and full service recovery following the fix. We have updated our circuit breakers to exclude individual customer rate limits from their triggering logic and are continuing work to improve detection and mitigation times.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by GitHub, started 2026-01-20 16:02 UTC, resolved after 21 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/github/incidents/m4xfyzd8mn2n
- Citation: GitHub, “Incident affecting actions-runner-controller” (2026-01-20 16:02 UTC). Archived by Rewindex: https://rewindex.com/company/github/incidents/m4xfyzd8mn2n (CC BY 4.0).
- Markdown link: `[GitHub: Incident affecting actions-runner-controller (2026-01-20)](https://rewindex.com/company/github/incidents/m4xfyzd8mn2n)`


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Canonical: https://rewindex.com/company/github/incidents/m4xfyzd8mn2n · Markdown: https://rewindex.com/company/github/incidents/m4xfyzd8mn2n.md · JSON: https://rewindex.com/api/v1/companies/github/incidents/m4xfyzd8mn2n · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:08:36.987Z