Public bug reported:
rbdimages information isn't updated during a live migration.
I have a customer that has updated their ceph cluster and added a new monitor
IP.
He adds a new monitor to his ceph cluster and updates ceph.conf on all of the
openstack nodes to reflect the new monitor IP.
They have running VMs that are boot from ceph volume and also has attached ceph
volumes.
He does a live migration to try and get nova to update the libvirt.xml and it
seems that only the volumes section is updated, not the vms section.
This is a copy of xml after the live migrate.
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<auth username='nova'>
<secret type='ceph' uuid='820ccd0b-b180-4528-93ed-76ae82edf832'/>
</auth>
<source protocol='rbd'
name='vms/3b97914e-3f9b-410a-b3d9-6c1a83244136_disk'> <-- this one is NOT
changed, old ips
<host name='192.168.200.12' port='6789'/>
<host name='192.168.200.14' port='6789'/>
<host name='192.168.200.24' port='6789'/>
<host name='192.168.240.17' port='6789'/>
<host name='192.168.240.23' port='6789'/>
</source>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<auth username='nova'>
<secret type='ceph' uuid='820ccd0b-b180-4528-93ed-76ae82edf832'/>
</auth>
<source protocol='rbd'
name='volumes/volume-6d04520d-0029-499c-af81-516a7ba37a54'> <-- this one is
changed, new ips
<host name='192.168.200.12' port='6789'/>
<host name='192.168.200.14' port='6789'/>
<host name='192.168.200.24' port='6789'/>
<host name='192.168.210.15' port='6789'/>
<host name='192.168.240.17' port='6789'/>
<host name='192.168.240.23' port='6789'/>
</source>
<backingStore/>
<target dev='vdb' bus='virtio'/>
<serial>6d04520d-0029-499c-af81-516a7ba37a54</serial>
<alias name='virtio-disk1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</disk>
** Affects: nova
Importance: Undecided
Status: New
** Tags: ceph
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https://bugs.launchpad.net/bugs/1741364
Title:
ceph ephemeral info not updated during live migrate
Status in OpenStack Compute (nova):
New
Bug description:
rbdimages information isn't updated during a live migration.
I have a customer that has updated their ceph cluster and added a new monitor
IP.
He adds a new monitor to his ceph cluster and updates ceph.conf on all of the
openstack nodes to reflect the new monitor IP.
They have running VMs that are boot from ceph volume and also has attached
ceph volumes.
He does a live migration to try and get nova to update the libvirt.xml and it
seems that only the volumes section is updated, not the vms section.
This is a copy of xml after the live migrate.
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<auth username='nova'>
<secret type='ceph' uuid='820ccd0b-b180-4528-93ed-76ae82edf832'/>
</auth>
<source protocol='rbd'
name='vms/3b97914e-3f9b-410a-b3d9-6c1a83244136_disk'> <-- this one is NOT
changed, old ips
<host name='192.168.200.12' port='6789'/>
<host name='192.168.200.14' port='6789'/>
<host name='192.168.200.24' port='6789'/>
<host name='192.168.240.17' port='6789'/>
<host name='192.168.240.23' port='6789'/>
</source>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
</disk>
<disk type='network' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<auth username='nova'>
<secret type='ceph' uuid='820ccd0b-b180-4528-93ed-76ae82edf832'/>
</auth>
<source protocol='rbd'
name='volumes/volume-6d04520d-0029-499c-af81-516a7ba37a54'> <-- this one is
changed, new ips
<host name='192.168.200.12' port='6789'/>
<host name='192.168.200.14' port='6789'/>
<host name='192.168.200.24' port='6789'/>
<host name='192.168.210.15' port='6789'/>
<host name='192.168.240.17' port='6789'/>
<host name='192.168.240.23' port='6789'/>
</source>
<backingStore/>
<target dev='vdb' bus='virtio'/>
<serial>6d04520d-0029-499c-af81-516a7ba37a54</serial>
<alias name='virtio-disk1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</disk>
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