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[Alan Pevec <1304333@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1304333

Title:
  [SRU] Instance left stuck in transitional POWERING state

Status in OpenStack Compute (Nova):
  Fix Released
Status in OpenStack Compute (nova) icehouse series:
  New
Status in nova package in Ubuntu:
  Fix Released
Status in nova source package in Trusty:
  Fix Released

Bug description:
  If a compute manager is stopped / fails during POWERING-ON or
  POWERING-OFF operations then the instance will be left stuck in a this
  transitional task_state.

  --- --- --- --- --- --- ---

  [Impact]

   * We are backporting this to Icehouse since nova currently fails to resolve
     instance state when service is restarted. It is not expected to impact
     normal operational behaviour in any way.

  [Test Case]

   * Deploy cloud incl. nova-compute and rabbitmq and create some
  instances.

   * Perform actions on those instances that cause state to change

   * Restart nova-compute and once restarted check that nova instances are in
     expected state.

  [Regression Potential]

   * None that I can see. This is hopefully a very low impact patch and I have
     tested in my local cloud environment with successful results.

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