[libvirt-users] Live migration & storage copy broken since 1.2.17

[Antoine Millet]

Hi,

It seems that live migration using storage copy is broken since libvirt
1.2.17.

Here is the command line used to do the migration using virsh:

  virsh migrate --live --p2p --persistent --undefinesource --copy
-storage-all d2b545d3-db32-48d3-b7fa-f62ff3a7fa18
qemu+tcp://dest/system

XML dump of my storage:

  <pool type='logical'>
    <name>local</name>
    <uuid>276bda97-d6c2-4681-bc3f-0c8c221bd1b1</uuid>
    <capacity unit='bytes'>1024207093760</capacity>
    <allocation unit='bytes'>4294967296</allocation>
    <available unit='bytes'>1019912126464</available>
    <source>
      <name>hkvm</name>
      <format type='lvm2'/>
    </source>
    <target>
      <path>/dev/hkvm</path>
    </target>
  </pool>

When it fails, I get the following error:

  error: Storage volume not found: no storage vol with matching name
'402aea08-26aa-45b6-a46e-a3b02137ff26'

Where 402aea08-26aa-45b6-a46e-a3b02137ff26 is the volume bound to my
VM:

      <disk type='volume' device='disk'>
        <driver name='qemu' type='raw' cache='none'/>
        <source pool='local' volume='402aea08-26aa-45b6-a46e
-a3b02137ff26'/>
       <backingStore/>
        <target dev='vda' bus='virtio'/>
        <alias name='virtio-disk0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
     </disk>

Here is the test result (version is for both source and destination):

- 1.2.15 -> ok
- 1.2.16 -> ok
- 1.2.17 -> fails
- 1.2.18 -> fails

Is it a bug? Do I miss something?

Thanks,

Antoine