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[Alan Pevec <1385484@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1385484

Title:
  Failed to start nova-compute after evacuate

Status in OpenStack Compute (Nova):
  Fix Released
Status in OpenStack Compute (nova) icehouse series:
  New
Status in OpenStack Compute (nova) juno series:
  Fix Released

Bug description:
  After evacuated successfully, and restarting the failed host to get it
  back. User will run into below error.


  <179>Sep 23 01:48:35 node-1 nova-compute 2014-09-23 01:48:35.346 13206 ERROR nova.openstack.common.threadgroup [-] error removing image
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup Traceback (most recent call last):
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 117, in wait
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     x.wait()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/threadgroup.py", line 49, in wait
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     return self.thread.wait()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 168, in wait
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     return self._exit_event.wait()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     return hubs.get_hub().switch()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187, in switch
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     return self.greenlet.switch()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 194, in main
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     result = function(*args, **kwargs)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/openstack/common/service.py", line 483, in run_service
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     service.start()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/service.py", line 163, in start
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     self.manager.init_host()
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 1018, in init_host
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     self._destroy_evacuated_instances(context)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 712, in _destroy_evacuated_instances
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     bdi, destroy_disks)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 962, in destroy
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     destroy_disks, migrate_data)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 1080, in cleanup
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     self._cleanup_rbd(instance)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/driver.py", line 1090, in _cleanup_rbd
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     LibvirtDriver._get_rbd_driver().cleanup_volumes(instance)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/rbd_utils.py", line 238, in cleanup_volumes
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     self.rbd.RBD().remove(client.ioctx, volume)
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup   File "/usr/lib/python2.7/dist-packages/rbd.py", line 300, in remove
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup     raise make_ex(ret, 'error removing image')
  2014-09-23 01:48:35.346 13206 TRACE nova.openstack.common.threadgroup ImageBusy: error removing image

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