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[Shinobu KINJO <shinobu@xxxxxxxxx>]

Public bug reported:

[Background]

When I did:

 ""nova live-migration""

It tells the Cinder to do:

 1.addhlu to add HLU on destination host
 2.removehlu to delete HLU on source host

But when I did:

 ""nova evacuate""

It only tells the Cinder to do:

 1.addhlu to add HLU on destination host

Even source compute node completely is down, powered off, HLU on source
compute node is still visible.

Evacuation itself is success. I'm not quite sure if this behavior is by
design or not.

[Reproduce]
 * Pre-requirement:
  the Cinder using EMC VNX storage as backend.

""nova boot"" to create an instance, called ""ins-A"" (for instance)
Power-off compute node which  ""ins-A"" were running on.
""nova evacuate"" to evacuate ""ins-A"" to another compute node.

[Expected Behavior]
 Add HLU on destination compute node
 Remove HLU from source compute node.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1523175

Title:
  ""nova evacuate""  does not tell cinder to do  ""removehlu""

Status in OpenStack Compute (nova):
  New

Bug description:
  [Background]

  When I did:

   ""nova live-migration""

  It tells the Cinder to do:

   1.addhlu to add HLU on destination host
   2.removehlu to delete HLU on source host

  But when I did:

   ""nova evacuate""

  It only tells the Cinder to do:

   1.addhlu to add HLU on destination host

  Even source compute node completely is down, powered off, HLU on
  source compute node is still visible.

  Evacuation itself is success. I'm not quite sure if this behavior is
  by design or not.

  [Reproduce]
   * Pre-requirement:
    the Cinder using EMC VNX storage as backend.

  ""nova boot"" to create an instance, called ""ins-A"" (for instance)
  Power-off compute node which  ""ins-A"" were running on.
  ""nova evacuate"" to evacuate ""ins-A"" to another compute node.

  [Expected Behavior]
   Add HLU on destination compute node
   Remove HLU from source compute node.

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