[openstack-dev] [Horizon] [Cinder] [Nova] [Neutron] Gathering quota usage data in Horizon
tsufiev at mirantis.com
Thu Dec 17 18:41:01 UTC 2015
I'd like to initiate a discussion of the feature request I'm going to make
on behalf of Horizon to every core OpenStack service which supports Quota
feature, namely Cinder, Nova and Neutron.
Although all three services' APIs support special calls to get current
quota limitations (Nova and Cinder allows to get and update both per-tenant
and default cloud-wide limitations, Neutron allows to do it only for
per-tenant limitations), there is no special call in any of these services
to get current per-tenant usage of quota. Because of that Horizon needs to
get, say for 'volumes' quota, a list of Cinder volumes in the current
tenant and then just calculate its length . When there are really a lot
of entities in tenant - instances/volumes/security groups/whatever - all
this calls sum up and make rendering pages in Horizon much more slower than
it could be. Is it possible to provide special API calls to alleviate this?
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