refactor(saturation): gitaly active node available
What
- Update the disk selector to only check the new Gitaly nodes.
- Update the SLOs to be a bit lower.
Why
-
Part of the multi-project migration we provisioned new Gitaly nodes (fqdn=~"gitaly-.*) where new repositories are only created there and we are actively moving repositories from the old gitaly servers (fqdn=~"file-.*) to the new ones.
Updating the query to only look at the new Gitaly nodes will make sure we have an accurate prediction.
-
At the moment we have 9 Gitaly servers so this would amount to the following:
- Available GB per Gitaly server: 12,000GB = 16,000GB * 0.75
- Available GB for the new fleet: 108,000GB = 12,000GB * 9
- Soft SLO: 21,600GB = 108,000GB * 0.2
- Hard SLO: 16,200GB = 108,000GB * 0.15
Edited by Steve Xuereb