Outage in GitLab
Degraded performance affecting Duo features
Resolved Minor
May 15, 2026 - Started 1 day ago
- Lasted about 3 hours
Incident Report
Summary AI Generated
GitLab experienced degraded performance affecting Duo Agent Platform workflows across GitLab.com and GitLab Dedicated for 2.6 hours, causing code review and custom flows to fail with "Session failed" errors. The team identified the root cause, implemented a revert fix, and deployed the solution. Error rates returned to normal levels after the revert was deployed.
We’re investigating an issue affecting GitLab Duo Agent Platform workflows across GitLab.com, and GitLab Dedicated. Some code review and custom flows may fail or show “Session failed.” More details at https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
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Latest Updates ( sorted recent to last )
1 day ago - at 05/15/2026 03:37PM
We’re investigating an issue affecting GitLab Duo Agent Platform workflows across GitLab.com, and GitLab Dedicated. Some code review and custom flows may fail or show “Session failed.” More details at https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
1 day ago - at 05/15/2026 04:07PM
We’re continuing to investigate an issue affecting GitLab Duo Agent Platform workflows on GitLab.com and GitLab Dedicated. We have identified a likely cause and are testing a revert. More details at https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
1 day ago - at 05/15/2026 04:32PM
We’ve identified the issue affecting GitLab Duo Agent Platform workflows across GitLab.com, and GitLab Dedicated. Some code review and custom flows may fail or show “Session failed.”
We are working on a revert to correct the issue.
More details at https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
1 day ago - at 05/15/2026 05:05PM
We have identified the cause and have created an MR to revert. We are waiting for that MR to deploy. We will provide further updates once that has merged and deployed.
More details at gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
1 day ago - at 05/15/2026 05:44PM
The revert has been deployed and we are now monitoring the situation. Error rates look to be returning to normal.
More details at gitlab.com/gitlab-com/gl-infra/production/-/work_items/22135
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