2024-12-04: PatroniServiceRailsPrimarySqlApdexSLOViolation

Customer Impact

Current Status

We found one likely query related to custom permissions for invited groups.. We've disabled the assign_custom_roles_to_group_links_saas feature flag globally, and re-enabled it just for a few select namespaces that are using it. This has brought down both the Database CPU, and CPU scheduling delay. As this cause is not definite, we will need to continue monitoring

📚 References and helpful links

Recent Events (available internally only):

• Feature Flag Log - Chatops to toggle Feature Flags Documentation
• Infrastructure Configurations
• GCP Events (e.g. host failure)

Deployment Guidance

• Deployments Log | Gitlab.com Latest Updates
• Reach out to Release Managers for S1/S2 incidents to discuss Rollbacks, Hot Patching or speeding up deployments. | Rollback Runbook | Hot Patch Runbook

Use the following links to create related issues to this incident if additional work needs to be completed after it is resolved:

• Corrective action ❙ Infradev
• Incident Review ❙ Infra investigation followup
• Confidential Support contact ❙ QA investigation

---

Note: In some cases we need to redact information from public view. We only do this in a limited number of documented cases. This might include the summary, timeline or any other bits of information, laid out in our handbook page. Any of this confidential data will be in a linked issue, only visible internally. By default, all information we can share, will be public, in accordance to our transparency value.

Security Note: If anything abnormal is found during the course of your investigation, please do not hesitate to contact security.