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[Kanagaraj Manickam <mkr1481@xxxxxxxxx>]

Public bug reported:

allow_resize_to_same_host is used to direct the 'resize' action to the
same node where the instance was running now. But the nova.compute.api.
resize() method is not taking care of this condition as of now when this
flag is set to TRUE.

Following code set the force_nodes to make sure that, the instance is
resized to the same node again.

        if not CONF.allow_resize_to_same_host:
            filter_properties['ignore_hosts'].append(instance['host'])
        else:
            if instance['host'] != instance['node']:
                filter_properties['force_nodes'] = [instance['node']]

** Affects: nova
     Importance: Undecided
     Assignee: Kanagaraj Manickam (kanagaraj-manickam)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Kanagaraj Manickam (kanagaraj-manickam)

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https://bugs.launchpad.net/bugs/1356309

Title:
  allow_resize_to_same_host is not handled properly in the resize() api

Status in OpenStack Compute (Nova):
  New

Bug description:
  allow_resize_to_same_host is used to direct the 'resize' action to the
  same node where the instance was running now. But the
  nova.compute.api. resize() method is not taking care of this condition
  as of now when this flag is set to TRUE.

  Following code set the force_nodes to make sure that, the instance is
  resized to the same node again.

          if not CONF.allow_resize_to_same_host:
              filter_properties['ignore_hosts'].append(instance['host'])
          else:
              if instance['host'] != instance['node']:
                  filter_properties['force_nodes'] = [instance['node']]

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