** Also affects: nova/icehouse Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1357599
Title: race condition with neutron in nova migrate code Status in OpenStack Compute (Nova): Fix Committed Status in OpenStack Compute (nova) icehouse series: New Bug description: The tempest test that does a resize on the instance from time to time fails with a neutron virtual interface timeout error. The reason why this is occurring is because resize_instance() calls: disk_info = self.driver.migrate_disk_and_power_off( context, instance, migration.dest_host, instance_type, network_info, block_device_info) which calls destory() which unplugs the vifs(). Then, self.driver.finish_migration(context, migration, instance, disk_info, network_info, image, resize_instance, block_device_info, power_on) is called which expects a vif_plugged event. Since this happens on the same host the neutron agent is able to detect that the vif was unplugged then plugged because it happens so fast. To fix this we should check if we are migrating to the same host if we are we should not expect to get an event. 8d1] Setting instance vm_state to ERROR 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] Traceback (most recent call last): 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/compute/manager.py", line 3714, in finish_resize 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] disk_info, image) 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/compute/manager.py", line 3682, in _finish_resize 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] old_instance_type, sys_meta) 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/openstack/common/excutils.py", line 82, in __exit__ 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] six.reraise(self.type_, self.value, self.tb) 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/compute/manager.py", line 3677, in _finish_resize 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] block_device_info, power_on) 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/virt/libvirt/driver.py", line 5302, in finish_migration 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] block_device_info, power_on) 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] File "/opt/stack/new/nova/nova/virt/libvirt/driver.py", line 3792, in _create_domain_and_network 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] raise exception.VirtualInterfaceCreateException() 2014-08-14 00:03:58.010 1276 TRACE nova.compute.manager [instance: dca468e4-d26f-4ae2-a522-7d02ef7c98d1] VirtualInterfaceCreateException: Virtual Interface creation failed To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1357599/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp