Unable to set custom overcommit ratio
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Fuel for OpenStack |
Fix Committed
|
Medium
|
Meg McRoberts |
Bug Description
In 5.0 (and 4.1.1 afterward) we implemented custom overcommit ratios for Nova Scheduler in Puppet manifests. But our default values are still far from real needs. Also, they are not configurable via UI, but it's easy to change them after deployment manually.
I propose:
1) allow a Fuel user to set the ratios on the Settings tab,
or
2) just document how to do it after the installation.
I prefer #2. It should be something like:
*) Read about overcommitment support [0],
*) Fuel uses ratios 8/1/1 for CPU/RAM/HDD
*) If you don't like that, go to /etc/nova/nova.conf at the Controller nodes , change the values and restart nova-scheduler service.
Links:
[0] http://
Conversation in Fuel-dev ML about the problem https:/
Initial blueprint of scheduler improvements for 5.0 https:/
Thread in Openstack-dev ML about moving overcommit calculations out of scheduler into the resource tracker http://
Changed in fuel: | |
status: | New → Confirmed |
assignee: | nobody → Meg McRoberts (dreidellhasa) |
description: | updated |
Neither the filter scheduler nor the overcommit ratio made it into the 5.0 or 4.1.1 Release Notes -- this seems like something we should fix while we're documenting this.