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[OpenStack Infra <1580609@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/315053
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=2194b103ad4c7573ddf1bf67d90e3f72c1ee8ad7
Submitter: Jenkins
Branch:    master

commit 2194b103ad4c7573ddf1bf67d90e3f72c1ee8ad7
Author: Timofey Durakov <tdurakov@xxxxxxxxxxxx>
Date:   Wed May 11 15:01:49 2016 +0300

    Fix race condition for live-migration-force-complete
    
    Live-migration monitor is single source of truth for
    actual migration state. This patch introduce mechanics
    that allows to schedule action, e.g. force-complete on
    active migration, and execute it in the right time.
    It fix issue that allow to leave active instance paused
    after live-migration.
    
    Closes-bug: #1580609
    
    Change-Id: Iadd8f57949b99a893b7c2c3a19084a21ae6290f9


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1580609

Title:
  live-migration force complete could leave instance paused in case of
  failure

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Description
  ===========

  nova live-migration-force-complete could pause instance in case of failure.
  There is potential window that could cause instance to be paused after live-migration finished.

  Steps to reproduce
  ==================

  1. Attempt to live-migrate instance
  2. Force live-migration to finish
  3. In case of live-migration failure before force-complete executed, or force-complete(pause) is executed before live-migration even started, instance will end up paused.

  Expected result
  ===============

  Instance should preserve state

  
  Actual result
  =============

  Instance will be left paused.

  Environment
  ===========

  Mitaka Openstack, with libvirt as a driver.

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