On Fri, 5 Oct 2018 14:31:05 +0100 (BST), Chris Dent wrote:
*<https://review.openstack.org/#/c/509042/> Propose counting quota usage from placement and API database (A bit out of date but may be worth resurrecting)
I'd like to resurrect this spec but it really depends on being able to ask for usage scoped only to a particular instance of Nova (GET /usages for NovaA vs GET /usages for NovaB). From what I understand, we don't have a concrete plan for being able to differentiate ownership of allocations yet.
Until then, we will be using a policy-based switch to control the quota behavior in the event of down/slow cells in a multi-cell deployment (fail build if project has servers in down/slow cells vs allow potentially violating quota limits if project has servers in down/slow cells). So, being able to leverage the placement API for /usages is not considered critical, since we have an interim plan.
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