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[OpenStack Infra <1974470@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/c/openstack/horizon/+/906004
Committed: https://opendev.org/openstack/horizon/commit/3acbf227a41493032c5828945d41d0b193cd960b
Submitter: "Zuul (22348)"
Branch:    master

commit 3acbf227a41493032c5828945d41d0b193cd960b
Author: Tatiana Ovchinnikova <t.v.ovtchinnikova@xxxxxxxxx>
Date:   Wed Jan 17 14:52:37 2024 -0600

    Add allocation ratios to Placement stats
    
    All the Placement API stats "total" show the actual amount of the
    resource that the provider can accommodate. Using allocation ratio
    it is possible to exceed physical constraints.
    
    This patch uses allocation ratios to display the diagrams properly
    and adds the data to the stats table.
    
    Closes-Bug: #1974470
    Closes-Bug: #1397917
    
    Change-Id: Iab0ce21ae63f4cc26d3ec5684615189b8ab35231


** Changed in: horizon
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1974470

Title:
  Nova is Deprecating Hypervisor API Endpoints

Status in OpenStack Dashboard (Horizon):
  Fix Released

Bug description:
  As reported on https://bugs.launchpad.net/horizon/+bug/1202965, the
  data brought by the responses from the Nova hypervisor API endpoint
  contain inconsistencies between the data it provides and the names of
  the response fields.

  This causes Horizon to display incongruent information on the
  hypervisor overview view, as the field for vCPUs used (vcpus_used) is
  really providing the total number dedicated and shared CPUs used
  while the field for total vCPUs (vcpus) provides information only
  about shared CPUs. This last field also doesn't account for the
  configured cpu_allocation_ration.

  This results on Horizon displaying, for example, uses of 5 out of 4
  vCPUs, if an hypervisor is overcommitting cpus, or even uses of 4 out
  of 0 vCPUs, if all CPUs are configured as dedicated.

  This is troublesome as Nova is, practically, deprecating the
  Hypervisor API endpoints, see this accepted proposal that REMOVES the
  fields used by horizon on the latest version of the API:
  https://review.opendev.org/c/openstack/nova/+/764040/. A fix to the
  contents of its response should not be expected as a solution.

  A possible solution might be transitioning to the Placement API
  instead, which appears to provide more consistent data and is Being
  used in Skyline.

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