Hosting Total Cost of Ownership Squad

21 Oct 2025 Call

Attending

Notes

  • eCHIS KE
    • tk
  • Muso Mali, currently on 4.15 in Google Kubernetes Engine (GKE) on Multi-node CouchDB with 37,551,919 docs in medic DB
    • looking for way to reduce cost
    • tried reducing size of GKS node types (CPU/RAM) but was unable to support existing users. compaction was especially bad for end users
    • have focused on reducing storage until more space is need to upgrade
    • Docs are in progress for how to migrate from 4.x → 5.x helm chart upgrade
  • 5.0
    • Cinque introduces more ephemeral disk use during upgrade to 5.x. The benefit is pretty massive (>40% faster API calls to /api/v1/initial-replication/get-ids, in turn, less CPU use) - we’re all good with this trade off?
    • More work in v2 purging for 5.1 on Nouveau, but index changes in preparation in the same Cinque PR
    • 5.0 Beta build is behind, but this week is reasonable
    • Comments on removing old UI in 5.0
      • Muso Mali is on old UI
      • Training cards may be possible, but not tested/ready yet
      • Muso & WA would prefer to wait on being forced to take new UI
      • would love to get public feedback on forum post

Action items:

  • @diana - 5.0 beta build this week (Oct 20) for eCHIS KE et al. to test on
  • @mrjones - publish forum post on how to find users with high doc count
  • Hiell - follow up with Ulrich for invite to Hosting TCO Slack channel