Resolved incident

Several services are degraded

GitHub · Critical · Started

Duration
3h 43m
Severity
Critical
Status
Resolved

Summary

Critical · Resolved

On October 6, 2026, from 19:44 to 19:50 UTC, GitHub experienced a service outage with elevated error rates peaking at 1.30% of all requests, totaling approximately 1.16 million failed requests. This impacted 12 services across GitHub, including Pull Requests, Webhooks, Repos, OAuth, Git over SSH, Codespaces, and Gists. The incident was triggered by GitHub Enterprise Importer (GEI) making multiple, long duration queries which saturated a database connection pool. Recovery was seen at approximately 19:50 UTC once the migration's calls stopped; GEI migrations were reenabled at 23:32 UTC after a code fix was merged.<br /><br />We have completed a detailed root-cause review and are implementing improved database-health safeguards. We will continue to review and add additional safeguards to prevent future recurrence.

View official incident ↗

Event timeline

How this incident unfolded, from the official status page.

  1. Investigating

    GitHub

    We are investigating reports of degraded performance for Pull Requests and Webhooks

  2. Investigating

    GitHub

    Webhooks is operating normally.

  3. Investigating

    GitHub

    Pull Requests is operating normally.

  4. Investigating

    GitHub

    A number of services including issues, pull requests, and webhooks, were briefly degraded, but have now recovered. Enterprise migrations are paused while we validate causes and mitigations.

  5. Monitoring

    GitHub

    The degradation has been mitigated. We are monitoring to ensure stability.

  6. Investigating

    GitHub

    All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.

  7. Investigating

    GitHub

    We are working towards a mitigation that will allow us to resume processing enterprise migrations.

  8. Investigating

    GitHub

    We are deploying a mitigation and plan to resume migrations shortly thereafter

  9. Resolved

    GitHub

    On October 6, 2026, from 19:44 to 19:50 UTC, GitHub experienced a service outage with elevated error rates peaking at 1.30% of all requests, totaling approximately 1.16 million failed requests. This impacted 12 services across GitHub, including Pull Requests, Webhooks, Repos, OAuth, Git over SSH, Codespaces, and Gists. The incident was triggered by GitHub Enterprise Importer (GEI) making multiple, long duration queries which saturated a database connection pool. Recovery was seen at approximately 19:50 UTC once the migration's calls stopped; GEI migrations were reenabled at 23:32 UTC after a code fix was merged.<br /><br />We have completed a detailed root-cause review and are implementing improved database-health safeguards. We will continue to review and add additional safeguards to prevent future recurrence.