yahoo-eng-team team mailing list archive

["Davanum Srinivas \(DIMS\)" <davanum@xxxxxxxxx>]

This bug lacks the necessary information to effectively reproduce and
fix it, therefore it has been closed. Feel free to reopen the bug by
providing the requested information and set the bug status back to
''New''.


** Changed in: nova
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1068048

Title:
  nova live-migration with ceph backend attempts to detach vda

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  Migration of an instance between two Folsom Compute nodes more often
  than not results in failure.

  When attempting to migrate a VM with
  block_device_mapping=vda:ceph_volume destination compute node attempts
  to detach vda

  Destination host on failed migration: http://pastebin.com/3GRnZzkL
  Source host on failed migration: http://pastebin.com/dMann0vL

  About 4 attempts later, after no changes.
  Destination host on successful migration: http://pastebin.com/aSDN4Myn
  Source host on successful migration: http://pastebin.com/PW1LbeW8

  
  Command being run:
  [admin:admin] root@openstack-control:~# nova live-migration 8c5cde28-904c-49ee-ac18-2885e87925b7 openstack-compute1

  
  Info:
  [demo:demo] root@openstack-control:~# nova boot --flavor 1 --image 7c55a705-c642-4223-914a-44e777beb859 --key_name mykey --block_device_mapping vda=923f330d-a084-491d-a32b-b4e38ccc9ca1::10:0 l-vol-vm_1
  [demo:demo] root@openstack-control:~# nova boot --flavor 1 --image 7c55a705-c642-4223-914a-44e777beb859 --key_name mykey --block_device_mapping vda=bb9a9ae7-e3c6-43f6-9aae-2701e1543adc::10:0 l-vol-vm_2
  [demo:demo] root@openstack-control:~# nova boot --flavor 1 --image 7c55a705-c642-4223-914a-44e777beb859 --key_name mykey --block_device_mapping vda=74dcc66f-53fc-43ec-9f79-16e8442d4b5c::10:0 l-vol-vm_3

  [demo:demo] root@openstack-control:~# nova list
  +--------------------------------------+------------+-----------+-------------------+
  | ID                                   | Name       | Status    | Networks          |
  +--------------------------------------+------------+-----------+-------------------+
  | 050c406b-3a3b-41b3-85ae-7ab4765f8d6e | l-vol-vm_1 | ACTIVE    | demo-net=10.7.7.7 |
  | 8c5cde28-904c-49ee-ac18-2885e87925b7 | l-vol-vm_2 | ACTIVE    | demo-net=10.7.7.8 |
  | 1fb5935f-8ab0-4464-8eb7-35b355f3c2ad | l-vol-vm_3 | ACTIVE    | demo-net=10.7.7.3 |
  +--------------------------------------+------------+-----------+-------------------+

  [demo:demo] root@openstack-control:~# cinder list
  +--------------------------------------+-----------+------------------+------+-------------+--------------------------------------+
  |                  ID                  |   Status  |   Display Name   | Size | Volume Type |             Attached to              |
  +--------------------------------------+-----------+------------------+------+-------------+--------------------------------------+
  | 74dcc66f-53fc-43ec-9f79-16e8442d4b5c |   in-use  |  linux-vm_3-vol  |  10  |     None    | 1fb5935f-8ab0-4464-8eb7-35b355f3c2ad |
  | 923f330d-a084-491d-a32b-b4e38ccc9ca1 |   in-use  |  linux-vm_1-vol  |  10  |     None    | 050c406b-3a3b-41b3-85ae-7ab4765f8d6e |
  | bb9a9ae7-e3c6-43f6-9aae-2701e1543adc |   in-use  |  linux-vm_2-vol  |  10  |     None    | 8c5cde28-904c-49ee-ac18-2885e87925b7 |
  | ccb71b41-efdf-4ae3-8b3e-ccb299a378e5 | available | Linux-Master-Vol |  10  |     None    |                                      |
  +--------------------------------------+-----------+------------------+------+-------------+--------------------------------------+

  
  Compute nodes are both running:
  ceph-common 0.53-1precise
  libvirt-bin 0.9.8-2ubuntu17.4
  libvirt0 0.9.8-2ubuntu17.4
  nova-common 2012.2+git201210091907~precise-0ubuntu1
  nova-compute 2012.2+git201210091907~precise-0ubuntu1
  nova-compute-kvm 2012.2+git201210091907~precise-0ubuntu1
  openvswitch-common 1.4.0-1ubuntu1.3
  openvswitch-datapath-dkms 1.4.0-1ubuntu1.3
  openvswitch-switch 1.4.0-1ubuntu1.3
  python-libvirt 0.9.8-2ubuntu17.4
  python-nova 2012.2+git201210091907~precise-0ubuntu1
  python-novaclient 1:2.9.0.10+git201210101300~precise-0ubuntu1
  python-quantum 2012.2+git201209271425~precise-0ubuntu1
  python-quantumclient 1:2.1.1+git201209200900~precise-0ubuntu1
  quantum-common 2012.2+git201209271425~precise-0ubuntu1
  quantum-plugin-openvswitch 2012.2+git201209271425~precise-0ubuntu1
  quantum-plugin-openvswitch-agent 2012.2+git201209271425~precise-0ubuntu1

  Control node is running:
  ceph-common 0.53-1precise
  cinder-api 2012.2+git201209252100~precise-0ubuntu1
  cinder-common 2012.2+git201209252100~precise-0ubuntu1
  cinder-scheduler 2012.2+git201209252100~precise-0ubuntu1
  cinder-volume 2012.2+git201209252100~precise-0ubuntu1
  glance 2012.2+git201209250330~precise-0ubuntu1
  glance-api 2012.2+git201209250330~precise-0ubuntu1
  glance-common 2012.2+git201209250330~precise-0ubuntu1
  glance-registry 2012.2+git201209250330~precise-0ubuntu1
  keystone 2012.2+git201209252030~precise-0ubuntu1
  nova-api 2012.2+git201210091907~precise-0ubuntu1
  nova-cert 2012.2+git201210091907~precise-0ubuntu1
  nova-common 2012.2+git201210091907~precise-0ubuntu1
  nova-consoleauth 2012.2+git201210091907~precise-0ubuntu1
  nova-novncproxy 2012.2+git201210091907~precise-0ubuntu1
  nova-scheduler 2012.2+git201210091907~precise-0ubuntu1
  openvswitch-common 1.4.0-1ubuntu1.3
  openvswitch-datapath-dkms 1.4.0-1ubuntu1.3
  openvswitch-datapath-module-3.2.0-32-generic 1.4.0-1ubuntu1.3
  openvswitch-datapath-source 1.4.0-1ubuntu1.3
  openvswitch-switch 1.4.0-1ubuntu1.3
  postgresql-9.1 9.1.6-0ubuntu12.04
  postgresql-client-9.1 9.1.6-0ubuntu12.04
  postgresql-client-common 129ubuntu1
  postgresql-common 129ubuntu1
  python-cinder 2012.2+git201209252100~precise-0ubuntu1
  python-cinderclient 1:1.0.0.1+git201210051400~precise-0ubuntu1
  python-glance 2012.2+git201209250330~precise-0ubuntu1
  python-glanceclient 1:0.5.1.8.cdc06d9+git201210051430~precise-0ubuntu1
  python-keystone 2012.2+git201209252030~precise-0ubuntu1
  python-keystoneclient 1:0.1.3.27+git201210122030~precise-0ubuntu1
  python-nova 2012.2+git201210091907~precise-0ubuntu1
  python-novaclient 1:2.9.0.10+git201210101300~precise-0ubuntu1
  quantum-plugin-openvswitch 2012.2+git201209271425~precise-0ubuntu1
  quantum-plugin-openvswitch-agent 2012.2+git201209271425~precise-0ubuntu1
  rabbitmq-server 2.7.1-0ubuntu4

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