*** This bug is a duplicate of bug 1696125 *** https://bugs.launchpad.net/bugs/1696125
** No longer affects: neutron -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1696006 Title: Libvirt fails to detach network interface with Linux bridge Status in OpenStack Compute (nova): New Bug description: We are seeing a spike of failures in job gate-tempest-dsvm-neutron- linuxbridge-ubuntu-xenial, test tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_hotplug_nic. As of this writing, there are 48 instances of this failure in Kibana: http://logstash.openstack.org/#/dashboard/file/logstash.json?query=message:%5C%22Failed%20to%20delete%20resource%5C%22%20AND%20message:%5C%22within%20the%20required%20time%20%5C%22%20AND%20message:%5C%22TestNetworkBasicOps:_run_cleanups%5C%22%20AND%20tags:%5C%22console%5C%22&from=7d I analyzed several cases and all seem to be the same. Compute manager calls libvirt to detach the interface and gets a failure (in this example, tap tap05567d09-b3 is being detached), so it raises an InterfaceDetachFailed exception: http://paste.openstack.org/show/611347/ The code involved is here: https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L5224 Since the exception is raised, the call to Neutron to delete the port is never executed: https://github.com/openstack/nova/blob/master/nova/compute/manager.py#L5227. Since the tempest test was setup to wait for the port deletion to ascertain success of the interface removal (https://github.com/openstack/tempest/blob/master/tempest/scenario/test_network_basic_ops.py#L253) a timeout occurs and the test / job fails. It is worth noting that the Linuxbridge agent actually detected the removal of the interface: http://paste.openstack.org/show/611346/. Please note that tap05567d09-b3 shows up in the removed set of the changes detected by the agent It is also worth noting that this failure starts to show up in Kibana on 5/31/2017 To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1696006/+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