Several services are degraded

Timeline

1. 12 Oct · 18:18 UTC 🔴 Resolved atom

   Oct 6, 23:40 UTC
   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.
   
   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.
   
   Oct 6, 22:40 UTC
   Update - We are deploying a mitigation and plan to resume migrations shortly thereafter
   
   Oct 6, 21:29 UTC
   Update - We are working towards a mitigation that will allow us to resume processing enterprise migrations.
   
   Oct 6, 20:57 UTC
   Investigating - All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.
   
   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

2. 06 Oct · 23:40 UTC 🟡 Resolved atom

   Oct 6, 23:40 UTC
   Resolved - This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
   
   Oct 6, 22:40 UTC
   Update - We are deploying a mitigation and plan to resume migrations shortly thereafter
   
   Oct 6, 21:29 UTC
   Update - We are working towards a mitigation that will allow us to resume processing enterprise migrations.
   
   Oct 6, 20:57 UTC
   Investigating - All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.
   
   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

3. 06 Oct · 22:40 UTC 🟡 Identified atom

   Oct 6, 22:40 UTC
   Update - We are deploying a mitigation and plan to resume migrations shortly thereafter
   
   Oct 6, 21:29 UTC
   Update - We are working towards a mitigation that will allow us to resume processing enterprise migrations.
   
   Oct 6, 20:57 UTC
   Investigating - All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.
   
   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

4. 06 Oct · 21:29 UTC 🟡 Identified atom

   Oct 6, 21:29 UTC
   Update - We are working towards a mitigation that will allow us to resume processing enterprise migrations.
   
   Oct 6, 20:57 UTC
   Investigating - All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.
   
   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

5. 06 Oct · 20:57 UTC 🟡 Investigating atom

   Oct 6, 20:57 UTC
   Investigating - All services are functioning normally except for enterprise migrations, which are still paused. They will resume soon.
   
   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

6. 06 Oct · 20:26 UTC 🟡 Monitoring atom

   Oct 6, 20:26 UTC
   Monitoring - The degradation has been mitigated. We are monitoring to ensure stability.
   
   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

7. 06 Oct · 20:22 UTC 🟡 Identified atom

   Oct 6, 20:22 UTC
   Update - 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.
   
   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

8. 06 Oct · 20:12 UTC 🟡 Identified atom

   Oct 6, 20:12 UTC
   Update - Pull Requests is operating normally.
   
   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

9. 06 Oct · 20:04 UTC 🟡 Identified atom

   Oct 6, 20:04 UTC
   Update - Webhooks is operating normally.
   
   Oct 6, 19:57 UTC
   Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks

10. 06 Oct · 19:57 UTC 🟡 Investigating atom

    Oct 6, 19:57 UTC
    Investigating - We are investigating reports of degraded performance for Pull Requests and Webhooks