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[John Hua <i@xxxxxxxxxxxxx>]

Public bug reported:

The host free memory is always set by this formula: "free = total -
reserved - instances" while the actual consumption will be ignored. If
there are some other VMs also hosted on the host, the resource view will
report an incorrect memory usage, and scheduler will not prevent
instance claiming memory even when there isn't enough available.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1642494

Title:
  Host memory used for other VMs is not included

Status in OpenStack Compute (nova):
  New

Bug description:
  The host free memory is always set by this formula: "free = total -
  reserved - instances" while the actual consumption will be ignored. If
  there are some other VMs also hosted on the host, the resource view
  will report an incorrect memory usage, and scheduler will not prevent
  instance claiming memory even when there isn't enough available.

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