# GitLab: Major incident: Errors and slow performance on merge requests in the specific groups.

**Summary:** GitLab reported a major incident causing errors and slow performance on merge request and pipeline pages for projects in specific groups. It started at 2026-10-10 04:49 UTC and was resolved at 2026-10-12 10:15 UTC, lasting 2 days 5 h. GitLab reported sustained recovery after applying a mitigation at 2026-10-10 06:26 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-10-10 04:49 UTC · Detected: 2026-10-18 05:07 UTC
- [Source: https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6ac9c3c12dc48705ab3d9fb9](https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6ac9c3c12dc48705ab3d9fb9)
- [Company: GitLab](https://rewindex.com/company/gitlab.md)
- Versions: before (none: first archived) → after incident\_version:188/6ac9c3c12dc48705ab3d9fb9@e124fe888f30
- Change 1 of 1 for this incident

Incident page (full timeline): [Errors and slow performance on merge requests in the specific groups.](https://rewindex.com/company/gitlab/incidents/6ac9c3c12dc48705ab3d9fb9.md)
## What changed

**1. Added: Title**

```diff
+ Errors and slow performance on merge requests in the specific groups.
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-10 04:49 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-12 10:15 UTC
```

**6. Added: Affected components**

```diff
+ API, CI/CD, Git Operations, Website
```

**7. Added: Update** (investigating) · 2026-10-10 04:49 UTC

```diff
+ We are investigating reports of errors and slow performance on merge request and pipeline pages for projects in the specific groups. Details in https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/23150
```

**8. Added: Update** (monitoring) · 2026-10-10 06:26 UTC

```diff
+ We have applied a mitigation and are seeing sustained recovery in error rates and performance on merge request and pipeline pages for the affected projects. We are continuing to monitor. Details in https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/23150
```

**9. Added: Update** (monitoring) · 2026-10-10 06:27 UTC

```diff
+ We have applied a mitigation and are seeing sustained recovery in error rates and performance on merge request and pipeline pages for the affected projects. We are continuing to monitor. Details in gitlab.com/gitlab-com/gl-infra/production/-/work_items/23150
```

**10. Added: Update** (resolved) · 2026-10-12 10:15 UTC

```diff
+ The issue has been resolved, and systems have returned to normal operation.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-10 04:49 UTC | Major incident: Errors and slow performance on merge requests in the specific groups. (this change) | degradation |

All GitLab changes: [timeline](https://rewindex.com/company/gitlab/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/ic11a09bb84a77b · Markdown: https://rewindex.com/change/ic11a09bb84a77b.md · JSON: https://rewindex.com/api/v1/changes/ic11a09bb84a77b · Generated 2026-10-18T11:25:12.631Z