Projects::TreeController#show Acceptance Testing

~Conversation: #220 (closed)

See the Migration Process documentation for more information on the Acceptance Testing stage of the process.

Feature Toggle Environment Variables: GITALY_ROOT_REF, GITALY_BRANCH_NAMES, GITALY_TAG_NAMES

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• Chef recipes to enable/disable this feature (staging/dev: https://dev.gitlab.org/cookbooks/chef-repo/merge_requests/640, prod: https://dev.gitlab.org/cookbooks/chef-repo/merge_requests/641)
• Grafana dashboard for monitoring (gitaly-dashboards!3 (closed))
• Environments
  • dev.gitlab.com
  • Staging
  • gitlab.com
• Test Results (post as comments on this issue)
  • Did the migration perform as expected? Yes
  • Did the code have reasonable performance characteristics? Yes
  • Did error rates jump to an unacceptable level? No
• Have the changes been rolled back pending final review?
• Runbook Added (gitlab-com/runbooks!259 (merged))
• Prometheus Alerts Added (gitlab-com/runbooks!259 (merged))