This version of GitHub Enterprise Server was discontinued on 2025-04-03. No patch releases will be made, even for critical security issues. For better performance, improved security, and new features, upgrade to the latest version of GitHub Enterprise Server. For help with the upgrade, contact GitHub Enterprise support.

Usage limits for self-hosted runners

There are some limits on GitHub Actions usage when using self-hosted runners. These limits are subject to change.

  • Workflow run time - Each workflow run is limited to 35 days. If a workflow run reaches this limit, the workflow run is cancelled. This period includes execution duration, and time spent on waiting and approval.
  • Job queue time - Each job for self-hosted runners that has been queued for at least 24 hours will be canceled. The actual time in queue can reach up to 48 hours before cancellation occurs. If a self-hosted runner does not start executing the job within this limit, the job is terminated and fails to complete.
  • API requests - You can execute up to 1,000 requests to the GitHub API in an hour across all actions within a repository. If requests are exceeded, additional API calls will fail which might cause jobs to fail.
  • Job matrix - A job matrix can generate a maximum of 256 jobs per workflow run. This limit applies to both GitHub-hosted and self-hosted runners.
  • Workflow run queue - No more than 500 workflow runs can be queued in a 10 second interval per repository. If a workflow run reaches this limit, the workflow run is terminated and fails to complete.
  • Registering self-hosted runners - You can have a maximum of 10,000 self-hosted runners in one runner group. If this limit is reached, adding a new runner will not be possible.