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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => kilo-1

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https://bugs.launchpad.net/bugs/1384531

Title:
  attach encrypted volume failed, exception info is not right

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  when attaching encrypted volume to the vm, the process is failed
  because import the encryptor class to raise an exception(Empty module
  name). But the exception info in the log file is not right. The log is
  like this:

  2014-10-22 21:40:39.089 ERROR nova.virt.libvirt.driver [req-92b203b3-bda6-4013-a946-c3760363b819 admin demo] [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d] Failed to attach volume at mountpoint: /dev/vdb
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d] Traceback (most recent call last):
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1380, in attach_volume
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]     encryption)
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]   File "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1327, in _get_volume_encryptor
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]     **encryption)
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]   File "/opt/stack/nova/nova/volume/encryptors/__init__.py", line 44, in get_volume_encryptor
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]     provider=provider, exception=e)
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]   File "/usr/lib/python2.7/logging/__init__.py", line 1449, in error
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]     self.logger.error(msg, *args, **kwargs)
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]   File "/usr/lib/python2.7/logging/__init__.py", line 1178, in error
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d]     self._log(ERROR, msg, args, **kwargs)
  2014-10-22 21:40:39.089 25617 TRACE nova.virt.libvirt.driver [instance: c2589f3a-3d20-44fc-bb37-88e65cb13b2d] TypeError: _log() got an unexpected keyword argument 'exception'

  This error info is caused by wrong log printing in
  /opt/stack/nova/nova/volume/encryptors/__init__.py(line 44).

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