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[Rui Chen <chenrui.momo@xxxxxxxxx>]

Public bug reported:

The large pages of source compute node should be hold for a possible
revert to the old instance type before resize-confirm, but it don't work
because 'hw:mem_page_size' in flavor wasn't stashed in instance system
metadata, so resource tracker didn't update the usage of large pages for
resize/migration instance.

See details:
ResourceTracker._update_usage_from_migration
flavors.extract_flavor
flavors.save_flavor_info

** Affects: nova
     Importance: Undecided
     Assignee: Rui Chen (kiwik-chenrui)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Rui Chen (kiwik-chenrui)

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https://bugs.launchpad.net/bugs/1412663

Title:
  Wrong usage of large pages on source compute node during resizing
  instance

Status in OpenStack Compute (Nova):
  New

Bug description:
  The large pages of source compute node should be hold for a possible
  revert to the old instance type before resize-confirm, but it don't
  work because 'hw:mem_page_size' in flavor wasn't stashed in instance
  system metadata, so resource tracker didn't update the usage of large
  pages for resize/migration instance.

  See details:
  ResourceTracker._update_usage_from_migration
  flavors.extract_flavor
  flavors.save_flavor_info

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