[ovirt-users] Live Migration broken in 4.2.6 under OVS/OVN networking
Hello; despite many tests and tentative adjustments, I'm currently unable to live
migrate VMs on oVirt 4.2.6.
The vdsm.log contains a "failed to migrate" error, that points to an attempt to
access a non-existent network port "TestOne". This is in fact the name of the
(externally defined) network, and isn't anywhere to be seen as OVS port.
2018-09-24 14:32:57,059+0000 ERROR (migsrc/4c0255b5) [virt.vm]
(vmId='4c0255b5-0f52-4da7-ac97-d54d815cd6ab') Cannot get interface MTU on
'TestOne': No such device (migration:290)
2018-09-24 14:32:57,793+0000 ERROR (migsrc/4c0255b5) [virt.vm]
(vmId='4c0255b5-0f52-4da7-ac97-d54d815cd6ab') Failed to migrate (migration:455)
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 437, in
_regular_run
self._startUnderlyingMigration(time.time())
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 509, in
_startUnderlyingMigration
self._perform_with_conv_schedule(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 587, in
_perform_with_conv_schedule
self._perform_migration(duri, muri)
File "/usr/lib/python2.7/site-packages/vdsm/virt/migration.py", line 529, in
_perform_migration
self._migration_flags)
File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 98, in f
ret = attr(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py", line
130, in wrapper
ret = f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line 92, in
wrapper
return func(inst, *args, **kwargs)
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 1746, in
migrateToURI3
if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed',
dom=self)
libvirtError: Cannot get interface MTU on 'TestOne': No such device
The setup was previously working under OVS, and I have "migration_ovs_hook_enabled =
true" under /etc/vdsm/vdsm.conf
Do I need to change anything? Is this supposed to work in the first place?
Many thanks for your help, have a nice day