[nova][placement] Yoga PTG summary

Balazs Gibizer balazs.gibizer at est.tech
Tue Oct 26 08:56:45 UTC 2021

On Mon, Oct 25 2021 at 06:50:12 PM +0200, Sylvain Bauza 
<sbauza at redhat.com> wrote:
> Well, it's a try given we discussed for 4 days and it could be a 
> large summary ;)
> You can see all the notes in a read-only etherpad here : 
> https://etherpad.opendev.org/p/r.e70aa851abf8644c29c8abe4bce32b81

Thank you Sylvain!

> ### Cross-project discussions
> # Cyborg cross-project discussion with Nova
> We agreed on adding a OWNED_BY_NOVA trait for all Resource Providers 
> creating by Nova so Cyborg would provide their own OWNED_BY_CYBORG 
> trait for knowing which inventories are used by either Nova or Cyborg.
> Cyborg contributors need to modify 
> https://review.opendev.org/c/openstack/nova-specs/+/780452
> We also agreed on the fact that 
> https://blueprints.launchpad.net/nova/+spec/cyborg-suspend-and-resume 
> is a specless blueprint.

A small correction. The name of the trait did not changed during the 
PTG discussion. It is still OWNER_<project> in the etherpad so 
OWNED_BY_<project> seems like a honest mistake here.


> # Zombie Resource Providers no longer corresponding to Nova resources
> Thanks to the OWNED_BY_NOVA trait we agreed when discussing with the 
> Cyborg team, we could find a way to know the ResourceProviders owned 
> by Nova that are no longer in use and we could consequently delete 
> them, or warn the operator if existing allocations are present.

and also here.


> Okay, if you reach this point, you're very brave. Kudos to you.
> I don't really want to reproduce this exercice often, but I just hope 
> it helps you summarizing a thousand-line large etherpad.
> -Sylvain


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