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[Bug 1249319] Re: evacuate on ceph backed volume fails

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Alan Pevec <1249319@xxxxxxxxxxxxxxxxxx>
Date: Thu, 04 Dec 2014 23:32:35 -0000
Reply-to: Bug 1249319 <1249319@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: nova/juno
   Importance: Undecided
       Status: New

** Changed in: nova/juno
       Status: New => Fix Committed

** Changed in: nova/juno
    Milestone: None => 2014.2.1

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https://bugs.launchpad.net/bugs/1249319

Title:
  evacuate on ceph backed volume fails

Status in OpenStack Compute (Nova):
  Fix Committed
Status in OpenStack Compute (nova) juno series:
  Fix Committed

Bug description:
  When using nova evacuate to move an instance from one compute host to
  another, the command silently fails. The issue seems to be that the
  rebuild process builds an incorrect libvirt.xml file that no longer
  correctly references the ceph volume.

  Specifically under the <disk> section I see:

  <source protocol="rbd" name="volumes/instance-00000004_disk">

  where in the original libvirt.xml the file was:

  <source protocol="rbd" name="volumes/volume-9e1a7835-b780-495c-a88a-
  4558be784dde">

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