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[Tao Li <litao7050@xxxxxxxxxxxxx>]

Public bug reported:

Recently，the compute node resources are updated by the periodical task ‘update_available_resource’ in https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L7067, but there are two places that will update the resource, in https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L517, the task will update the ‘memory_mb_used’，‘vcpus_used’ ，‘local_gb_used’ to the actual used memory，vcpu and local disk. So if users refesh the used resources rapidly and will find the memory will change periodically.
So I think it shouldn't update the ‘memory_mb_used’，‘vcpus_used’ ，‘local_gb_used’ here.

** Affects: nova
     Importance: Undecided
     Assignee: Tao Li (eric-litao)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Tao Li (eric-litao)

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https://bugs.launchpad.net/bugs/1733034

Title:
  Memory_mb_used will be changed to another value periodically

Status in OpenStack Compute (nova):
  New

Bug description:
  Recently，the compute node resources are updated by the periodical task ‘update_available_resource’ in https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L7067, but there are two places that will update the resource, in https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L517, the task will update the ‘memory_mb_used’，‘vcpus_used’ ，‘local_gb_used’ to the actual used memory，vcpu and local disk. So if users refesh the used resources rapidly and will find the memory will change periodically.
  So I think it shouldn't update the ‘memory_mb_used’，‘vcpus_used’ ，‘local_gb_used’ here.

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