So, by default, is it enabled in Antelope ? Is it a configurable option ? If so in which file it resides ? Once again thank you for your help. Appreciate it.
On Mon, 2024-05-13 at 18:27 +0530, Gk Gk wrote:
> Hi,
>
> In the Antelope version nova scheduler, is there an option for filtering
> hypervisors based on available disk space ? I cant find the option
> "DiskFilter' in the latest documentation for antelope. How to achieve this
> ?
the Disk filter was removed 5 years ago in train release.
https://github.com/openstack/nova/commit/78645e61c63bf042453d1f822ae8b3f1ee6a311b
its functionality is now unconditionally implemented by the placement service.
the placement service pre filters that able host returing a set of allocation candiates
this funcitonlaty was intoduced as an optional configuration in Pike
https://specs.openstack.org/openstack/nova-specs/specs/pike/implemented/placement-allocation-requests.html
and then was made mandotry around the time of the rocky release.
we removed the filters in train because as of rocky they were redundant since placement always
enforces the disk requirements as nova includes a request for disk space in the placement allocation
candiate request when its approprate to do so.
i.e. nova will not claim local disk space for BFV guest but will for guests using local storage.
>
> Thanks
> G.K