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[OpenStack Infra <1500337@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/228351
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=f00f3bee239836b095e2c99c363586f17dae9b72
Submitter: Jenkins
Branch:    master

commit f00f3bee239836b095e2c99c363586f17dae9b72
Author: Hiroyuki Eguchi <h-eguchi@xxxxxxxxxxxxx>
Date:   Mon Sep 28 17:24:01 2015 +0900

    Rollback of live-migration fails with the NFS driver
    
    This error occurs when fail to live migrate before
    destination host attach to the NFS server.
    We should consider whether destination host has mounted to
    NFS server or not when executing rollback of live-migration.
    
    Closes-Bug: #1500337
    Change-Id: Id6d0bfead0557e1dfe4aeee56a7d85adaf38549a


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

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https://bugs.launchpad.net/bugs/1500337

Title:
  Rollback of live-migration fails in the case of cinder with the NFS
  driver

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  This error occurs under the following situations.

  - cinder is using the NFS driver.
  - cinder volume is attached to the instance.
  - fail to live migrate before destination host attach to the NFS server

  We should consider whether destination host has mounted to NFS server
  or not when executing rollback of live-migration.

  <Error Message>

  ProcessExecutionError: Unexpected error while running command.
  Command: sudo nova-rootwrap /etc/nova/rootwrap.conf umount /var/lib/nova/mnt/b5e2fcf5ad9470489747f7caa242747b
  Exit code: 32
  Stdout: u''
  Stderr: u'umount: /var/lib/nova/mnt/b5e2fcf5ad9470489747f7caa242747b: not mounted\n'

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