Hosting Total Cost of Ownership Squad

mrjones · June 3, 2025, 2:28am

3 Jun 2025 Call

Review main ticket
- #9845: refactor shared libssearch to call cht datasource freetext search APIs - PR approved - should be merged!
- Upgrade to latest version of Couch/Nouveau to 3.4.3 #9882 can be merged in 4.x and not wait for 5.x
- should
any ddoc changes, all views are rebuilt
- See related comment on research ticket
- Q: do we know for certain if a 4.19 → 4.20 will cause this spike in disk use? A: . From the current diff of 4.19.0...master, I do not see any changes to the ddoc files
- Need for more disk space upgrade testing on ec2 test instance with prod data?
MoH KE update on testing Nouveau on prod data
- had to work through MoH process for provisioning a new VM
- got a large and small cloned instance
- will commence testing once ready - but need to make sure large instance has enough free space before proceeding
hosting TCO 2.0
- consider moving views to more/different ddocs?
- existing research ticket
- current ticket status is “it’s tricky”
- still looking into this effort though as it’s still quite promising - it is likely a key part of path forward to address 5x disk space in upgrading
- relevant findings in shard/cpu research on forums
- tom exploring why exactly the space used is more than ~5x we see in production. ideally it’s ~2x.
- early research showing map reduce (including, but beyond, freetext) views are resource intensive (both CPU & Disk)
- some early research on removing freetext views