[Bug 1398999] Related fix merged to nova (master)

[OpenStack Infra]

Reviewed:  https://review.openstack.org/459316
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=1032c79238e87259cef6963e43c78c39eeeb2cde
Submitter: Jenkins
Branch:    master

commit 1032c79238e87259cef6963e43c78c39eeeb2cde
Author: Matt Riedemann <mriedem.os at gmail.com>
Date:   Mon Apr 24 09:54:21 2017 -0400

    Enable test_iscsi_volume in live migration job
    
    The block_migrate_cinder_iscsi config option in Tempest says
    the libvirt driver doesn't support live migration with an attached
    volume because of bug 1398999 where volumes live on a network share
    like RBD. However, I8fcc3ef3cb5d9fd3a95067929c496fdb5976fd41 in
    nova says that this is possible with libvirt >= 1.2.17. Since we are
    using libvirt 2.5.0 from the Ubuntu Cloud Archive on Xenial nodes
    now, we should be able to enable this test.
    
    Change-Id: I7d7a708b231070468616ae852d81d2f8b01ba568
    Related-Bug: #1398999

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https://bugs.launchpad.net/bugs/1398999

Title:
  Block migrate with attached volumes copies volumes to themselves

Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) juno series:
  Fix Released
Status in libvirt package in Ubuntu:
  Fix Released
Status in nova package in Ubuntu:
  Triaged
Status in libvirt source package in Trusty:
  Confirmed
Status in nova source package in Trusty:
  Triaged
Status in libvirt source package in Utopic:
  Won't Fix
Status in nova source package in Utopic:
  Won't Fix
Status in libvirt source package in Vivid:
  Confirmed
Status in nova source package in Vivid:
  Won't Fix
Status in libvirt source package in Wily:
  Fix Released
Status in nova source package in Wily:
  Won't Fix

Bug description:
  When an instance with attached Cinder volumes is block migrated, the
  Cinder volumes are block migrated along with it. If they exist on
  shared storage, then they end up being copied, over the network, from
  themselves to themselves. At a minimum, this is horribly slow and de-
  sparses a sparse volume; at worst, this could cause massive data
  corruption.

  More details at http://lists.openstack.org/pipermail/openstack-
  dev/2014-June/038152.html

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