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[Jens Offenbach <wolle5050@xxxxxx>]

Public bug reported:

I have setup a fresh OpenStack HA Pike environment on Ubuntu 16.04.3.
Live migration has been enabled and works so far. As storage backend I
am using Ceph v12.2.0 (Luminous). When you attach a secondary volume to
a vm and try to live migrate the vm to another host, it fails with the
following exception:

2017-09-07 08:30:46.621 3246 ERROR nova.virt.libvirt.driver [req-832fc6c9-4d8e-46f8-94be-95cb5c7a4114 dddfba8e02f746799a6408a523e6cd25 ed2d2efd86dd40e7a45491d8502318d3 - default default] [instance: 414e8bc1-0b85-4e7f-8897-74b416b9caf8] Live Migration failure: unsupported configuration: Target device drive address 0:0:0 does not match source 0:0:1: libvirtError: unsupported configuration: Target device drive address 0:0:0 does not match source 0:0:1
2017-09-07 08:30:47.293 3246 ERROR nova.virt.libvirt.driver [req-832fc6c9-4d8e-46f8-94be-95cb5c7a4114 dddfba8e02f746799a6408a523e6cd25 ed2d2efd86dd40e7a45491d8502318d3 - default default] [instance: 414e8bc1-0b85-4e7f-8897-74b416b9caf8] Migration operation has aborted

When you (not live) migrate the corresponding vm with the attached
volume, migration succeeds. When you launch the vm from a bootable
volume, migration and live migration succeeds in both cases. Only live
migration with an additional attached volume fails. Because of Ceph RDB
volumes, migration does not require "Block migration".

Compute node:
$ pip list | grep -E 'nova|cinder'
nova (16.0.0)
python-cinderclient (3.1.0)
python-novaclient (9.1.0)

Controller node:
$ pip list | grep -E 'nova|cinder'
cinder (11.0.0)
nova (16.0.0)
python-cinderclient (3.1.0)
python-novaclient (9.1.0)

$ ceph --version
ceph version 12.2.0 (32ce2a3ae5239ee33d6150705cdb24d43bab910c) luminous (rc)

Is this a normal behaviour?

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: ceph cinder live-migration volumes

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https://bugs.launchpad.net/bugs/1715569

Title:
  Live migration fails with an attached non-bootable Cinder volume
  (Pike)

Status in OpenStack Compute (nova):
  New

Bug description:
  I have setup a fresh OpenStack HA Pike environment on Ubuntu 16.04.3.
  Live migration has been enabled and works so far. As storage backend I
  am using Ceph v12.2.0 (Luminous). When you attach a secondary volume
  to a vm and try to live migrate the vm to another host, it fails with
  the following exception:

  2017-09-07 08:30:46.621 3246 ERROR nova.virt.libvirt.driver [req-832fc6c9-4d8e-46f8-94be-95cb5c7a4114 dddfba8e02f746799a6408a523e6cd25 ed2d2efd86dd40e7a45491d8502318d3 - default default] [instance: 414e8bc1-0b85-4e7f-8897-74b416b9caf8] Live Migration failure: unsupported configuration: Target device drive address 0:0:0 does not match source 0:0:1: libvirtError: unsupported configuration: Target device drive address 0:0:0 does not match source 0:0:1
  2017-09-07 08:30:47.293 3246 ERROR nova.virt.libvirt.driver [req-832fc6c9-4d8e-46f8-94be-95cb5c7a4114 dddfba8e02f746799a6408a523e6cd25 ed2d2efd86dd40e7a45491d8502318d3 - default default] [instance: 414e8bc1-0b85-4e7f-8897-74b416b9caf8] Migration operation has aborted

  When you (not live) migrate the corresponding vm with the attached
  volume, migration succeeds. When you launch the vm from a bootable
  volume, migration and live migration succeeds in both cases. Only live
  migration with an additional attached volume fails. Because of Ceph
  RDB volumes, migration does not require "Block migration".

  Compute node:
  $ pip list | grep -E 'nova|cinder'
  nova (16.0.0)
  python-cinderclient (3.1.0)
  python-novaclient (9.1.0)

  Controller node:
  $ pip list | grep -E 'nova|cinder'
  cinder (11.0.0)
  nova (16.0.0)
  python-cinderclient (3.1.0)
  python-novaclient (9.1.0)

  $ ceph --version
  ceph version 12.2.0 (32ce2a3ae5239ee33d6150705cdb24d43bab910c) luminous (rc)

  Is this a normal behaviour?

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