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GitLab: CI pipelines not starting on merge requests.

Affected components: CI/CDWebsite

Timeline of updates

1. investigating2026-06-30 08:52 UTC

   We are currently investigating an issue affecting CI pipelines not starting on merge requests. Our team is actively investigating the root cause.

2. identified2026-06-30 09:37 UTC

   We have identified that the sidekiq workers processing the jobs are getting deferred. The team is working on identifying the remediation steps.

3. identified2026-06-30 10:51 UTC

   No material updates to report. We are continuing to investigate the current issue and engineers are working to determine remediation steps.

4. identified2026-06-30 11:19 UTC

   Our engineers are still investigating the issue but jobs are starting to be processed with a delay. More details can be found here: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22412

5. monitoring2026-06-30 11:39 UTC

   Queues and runner backlog are trending back towards normal, while systems continue to work through the remaining backlog. Engineers are continuing to monitor this.

6. resolved2026-06-30 12:07 UTC

   Incident has now been mitigated and runner backlogs are now back to normal. CI pipelines are now resuming. Engineers will continue to monitor this recovery.

Rewindex changes for this incident

• Major incident: CI pipelines not starting on merge requests. 2026-06-30 08:52 UTC

Impact, status and times are the vendor’s own, as last archived. View on status.gitlab.com (opens in new tab). GitLab profile · Recent GitLab incidents · Markdown · JSON