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On Mon, 19 Nov 2018 17:19:22 +0100, Surya Seetharaman wrote:
> 
> 
> On Mon, Nov 19, 2018 at 2:39 PM Matt Riedemann <mriedemos at gmail.com 
> <mailto:mriedemos at gmail.com>> wrote:
> 
>     On 11/19/2018 3:17 AM, melanie witt wrote:
>      > - Not directly related to the session, but CERN (hallway track) and
>      > NeCTAR (dev ML) have both given feedback and asked that the
>      > policy-driven idea for handling quota for down cells be avoided.
>     Revived
>      > the "propose counting quota in placement" spec to see if there's
>     any way
>      > forward here
> 
>     Should this be abandoned then?
> 
>     https://review.openstack.org/#/c/614783/
> 
>     Since there is no microversion impact to that change, it could be added
>     separately as a bug fix for the down cell case if other operators want
>     that functionality. But maybe we don't know what other operators want
>     since no one else is at multi-cell cells v2 yet.
> 
> 
> I thought the policy check was needed until the "propose counting quota 
> in placement"
> has been implemented as a workaround and that is what the "handling down 
> cell" spec also proposed,
> unless the former spec would be implemented within this cycle in which 
> case we do not need the
> policy check.

Right, I don't think that anyone _wants_ the policy check approach. That 
was just the workaround, last resort idea we had for dealing with down 
cells in the absence of being able to count quota usage from placement.

The operators we've discussed with (CERN, NeCTAR, Oath) would like quota 
counting not to depend on cell databases, if possible. But they are 
understanding and will accept the policy-driven workaround if we can't 
move forward with counting quota usage from placement.

If we can get agreement on the count quota usage from placement spec (I 
have updated it with new proposed details), then we should abandon the 
policy-driven behavior patch. I am eager to find out what everyone 
thinks of the latest proposal.

Cheers,
-melanie

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