moving this to triaaged and setting this to high
the regression was introduced in train by
https://opendev.org/openstack/nova/commit/fd8fdc934530fb49497bc6deaa72adfa51c8783a
specifically
https://github.com/openstack/nova/blob/b8ca3ce31ca15ddaa18512271c2de76835f908bb/nova/compute/manager.py#L7654-L7656
adding
migrate_data.vifs = \
migrate_data_obj.VIFMigrateData.create_skeleton_migrate_vifs(
instance.get_network_info())
uncondtionally activates the code path that require multiple port bindings
as when support for the multiple port bindings was added in rocky it used
migrate_data.vif as a sentel
for the new workflow.
e.g. if it is populated the new migration workflow should be used.
migrate_data.vifs = \
migrate_data_obj.VIFMigrateData.create_skeleton_migrate_vifs(
instance.get_network_info())
should be
if self.network_api.supports_port_binding_extension(ctxt):
migrate_data.vifs =
migrate_data_obj.VIFMigrateData.create_skeleton_migrate_vifs(instance.get_network_info())
this bug prevents live migation with any neutron backend that does not
support multiple port bindigns form train on so i am setting this to
high.
** Changed in: nova
Importance: Undecided => High
** Changed in: nova
Status: Incomplete => Triaged
** Also affects: nova/train
Importance: Undecided
Status: New
** Also affects: nova/ussuri
Importance: Undecided
Status: New
** Changed in: nova/train
Status: New => Triaged
** Changed in: nova/train
Importance: Undecided => High
** Changed in: nova/ussuri
Status: New => Triaged
** Changed in: nova/ussuri
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1888395
Title:
shared live migration of a vm with a vif is broken in train
Status in networking-opencontrail:
New
Status in OpenStack Compute (nova):
Triaged
Status in OpenStack Compute (nova) train series:
Triaged
Status in OpenStack Compute (nova) ussuri series:
Triaged
Bug description:
it was working in queens but fails in train. nova compute at the
target aborts with the exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line
165, in _process_incoming
res = self.dispatcher.dispatch(message)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 274, in dispatch
return self._do_dispatch(endpoint, method, ctxt, args)
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py",
line 194, in _do_dispatch
result = func(ctxt, **new_args)
File "/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 79,
in wrapped
function_name, call_dict, binary, tb)
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220,
in __exit__
self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196,
in force_reraise
six.reraise(self.type_, self.value, self.tb)
File "/usr/lib/python2.7/site-packages/nova/exception_wrapper.py", line 69,
in wrapped
return f(self, context, *args, **kw)
File "/usr/lib/python2.7/site-packages/nova/compute/utils.py", line 1372,
in decorated_function
return function(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 219,
in decorated_function
kwargs['instance'], e, sys.exc_info())
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220,
in __exit__ self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196,
in force_reraise
six.reraise(self.type_, self.value, self.tb) File
"/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 207, in
decorated_function
return function(self, context, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 7007,
in pre_live_migration
bdm.save()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 220,
in __exit__
self.force_reraise()
File "/usr/lib/python2.7/site-packages/oslo_utils/excutils.py", line 196,
in force_reraise
six.reraise(self.type_, self.value, self.tb)
File "/usr/lib/python2.7/site-packages/nova/compute/manager.py", line 6972,
in pre_live_migration
migrate_data)
File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line
9190, in pre_live_migration
instance, network_info, migrate_data)
File "/usr/lib/python2.7/site-packages/nova/virt/libvirt/driver.py", line
9071, in _pre_live_migration_plug_vifs
vif_plug_nw_info.append(migrate_vif.get_dest_vif())
File "/usr/lib/python2.7/site-packages/nova/objects/migrate_data.py", line
90, in get_dest_vif
vif['type'] = self.vif_type
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
67, in getter
self.obj_load_attr(name)
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
603, in obj_load_attr
_("Cannot load '%s' in the base class") % attrname)
NotImplementedError: Cannot load 'vif_type' in the base class
steps to reproduce:
- train centos 7 based deployment: 1 controller, 2 computes, libvirt +
qemu-kvm, ceph shared storage, neutron with contrail vrouter virtual network;
- create and start a vm;
- live migrate it between computes.
expected result: vm migrates successfully.
rpm -qa | grep nova:
python2-novaclient-15.1.1-1.el7.noarch
openstack-nova-common-20.3.0-1.el7.noarch
python2-nova-20.3.0-1.el7.noarch
openstack-nova-compute-20.3.0-1.el7.noarch
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