2020-03-16 Error occurred when fetching sidebar data

Summary

When viewing MRs or issues that were part of canary, an error message appeared: Error occurred when fetching sidebar data and sidebar fields (e.g. Assignee, Epic) were not loading.

Timeline

All times UTC.

2020-03-16

• 08:16 - cny deployment that included this change: gitlab-org/gitlab!26171 (merged) was started
• 09:48 - users report on Slack the error
• 10:00 - dev-escalation is pulled in
• 10:18 - the MR breaking project query is identified
• 10:31 - chatops command for draining canary is issued
• 10:33 - canary is drained, error goes away

Resources

1. If the Situation Zoom room was utilised, recording will be automatically uploaded to Incident room Google Drive folder (private)