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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Public bug reported:

This is a follow up to bug 1782393 which handled reporting 0
local_gb_used during an instance claim in the resource tracker but we
still have the same issue with resize claims ignoring volume-backed
instances.

This is the instance_claim fix:

https://review.openstack.org/#/c/584204/

The problem is here during a resize:

https://github.com/openstack/nova/blob/f63fd14975cda83d24121b010cbedfc3a7e5ff1f/nova/compute/resource_tracker.py#L1027

That passes the flavor object to the _get_usage_dict method which
doesn't handle the is_bfv case:

https://github.com/openstack/nova/blob/f63fd14975cda83d24121b010cbedfc3a7e5ff1f/nova/compute/resource_tracker.py#L1466

** Affects: nova
     Importance: Medium
     Assignee: Matt Riedemann (mriedem)
         Status: Triaged

** Affects: nova/rocky
     Importance: Medium
         Status: Triaged


** Tags: compute resour volumes

** Changed in: nova
       Status: New => Triaged

** Changed in: nova
   Importance: Undecided => High

** Changed in: nova
   Importance: High => Medium

** Also affects: nova/rocky
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1796737

Title:
  resize: hypervisor local_gb_used still reports usage even with volume-
  backed instances after fix for bug 1469179

Status in OpenStack Compute (nova):
  Triaged
Status in OpenStack Compute (nova) rocky series:
  Triaged

Bug description:
  This is a follow up to bug 1782393 which handled reporting 0
  local_gb_used during an instance claim in the resource tracker but we
  still have the same issue with resize claims ignoring volume-backed
  instances.

  This is the instance_claim fix:

  https://review.openstack.org/#/c/584204/

  The problem is here during a resize:

  https://github.com/openstack/nova/blob/f63fd14975cda83d24121b010cbedfc3a7e5ff1f/nova/compute/resource_tracker.py#L1027

  That passes the flavor object to the _get_usage_dict method which
  doesn't handle the is_bfv case:

  https://github.com/openstack/nova/blob/f63fd14975cda83d24121b010cbedfc3a7e5ff1f/nova/compute/resource_tracker.py#L1466

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