An instance may be destroyed prior nova-compute receives a vif-delete-event. detach_interface() will so try to get the lxd profile related to the instance which does not exist anymore, the process will fail with:
Dec 14 12:26:42.331921 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: DEBUG nova.network.base_api [-] [instance: 08fcff77-2118-4cd3-828f-daeb619fc3bd] Updating instance_info_cache with network_info: [] {{(pid=27625) update_instance_cache_with_nw_info /opt/stack/new/nova/nova/network/base_api.py:48}}
Dec 14 12:26:42.352509 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: INFO nova.compute.manager [-] [instance: 08fcff77-2118-4cd3-828f-daeb619fc3bd] Took 1.22 seconds to deallocate network for instance.
Dec 14 12:26:42.358135 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: DEBUG nova.compute.manager [req-4661f7c1-fcc8-48d8-9c2f-30b246cb331a req-a0f6e191-042f-481c-ae20-a300f7c1cde7 service nova] [instance: 08fcff77-2118-4cd3-828f-daeb619fc3bd] Received event network-vif-deleted-be4dbfa3-3fcc-4dbc-bd2f-d1226321ab2e {{(pid=27625) external_instance_event /opt/stack/new/nova/nova/compute/manager.py:8074}}
Dec 14 12:26:42.358434 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: INFO nova.compute.manager [req-4661f7c1-fcc8-48d8-9c2f-30b246cb331a req-a0f6e191-042f-481c-ae20-a300f7c1cde7 service nova] [instance: 08fcff77-2118-4cd3-828f-daeb619fc3bd] Neutron deleted interface be4dbfa3-3fcc-4dbc-bd2f-d1226321ab2e; detaching it from the instance and deleting it from the info cache
Dec 14 12:26:42.358843 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: DEBUG nova.network.base_api [req-4661f7c1-fcc8-48d8-9c2f-30b246cb331a req-a0f6e191-042f-481c-ae20-a300f7c1cde7 service nova] [instance: 08fcff77-2118-4cd3-828f-daeb619fc3bd] Updating instance_info_cache with network_info: [] {{(pid=27625) update_instance_cache_with_nw_info /opt/stack/new/nova/nova/network/base_api.py:48}}
Dec 14 12:26:42.454631 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server [req-4661f7c1-fcc8-48d8-9c2f-30b246cb331a req-a0f6e191-042f-481c-ae20-a300f7c1cde7 service nova] Exception during message handling: NotFound: not found
Dec 14 12:26:42.454872 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server Traceback (most recent call last):
Dec 14 12:26:42.455022 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 166, in _process_incoming
Dec 14 12:26:42.455156 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
Dec 14 12:26:42.455291 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 265, in dispatch
Dec 14 12:26:42.455432 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
Dec 14 12:26:42.455574 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 194, in _do_dispatch
Dec 14 12:26:42.455807 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
Dec 14 12:26:42.456014 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/exception_wrapper.py", line 79, in wrapped
Dec 14 12:26:42.456161 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server function_name, call_dict, binary, tb)
Dec 14 12:26:42.456350 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220, in __exit__
Dec 14 12:26:42.456498 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server self.force_reraise()
Dec 14 12:26:42.456644 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196, in force_reraise
Dec 14 12:26:42.456805 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server six.reraise(self.type_, self.value, self.tb)
Dec 14 12:26:42.456941 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/exception_wrapper.py", line 69, in wrapped
Dec 14 12:26:42.457078 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server return f(self, context, *args, **kw)
Dec 14 12:26:42.457218 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/manager.py", line 8090, in external_instance_event
Dec 14 12:26:42.457361 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server event.tag)
Dec 14 12:26:42.457496 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova/nova/compute/manager.py", line 7995, in _process_instance_vif_deleted_event
Dec 14 12:26:42.457626 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server self.driver.detach_interface(context, instance, vif)
Dec 14 12:26:42.457771 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/opt/stack/new/nova-lxd/nova/virt/lxd/driver.py", line 803, in detach_interface
Dec 14 12:26:42.457902 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server profile = self.client.profiles.get(instance.name)
Dec 14 12:26:42.458042 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/pylxd/models/profile.py", line 38, in get
Dec 14 12:26:42.458175 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server response = client.api.profiles[name].get()
Dec 14 12:26:42.458311 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/pylxd/client.py", line 148, in get
Dec 14 12:26:42.458440 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server is_api=is_api)
Dec 14 12:26:42.458578 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server File "/usr/local/lib/python2.7/dist-packages/pylxd/client.py", line 103, in _assert_response
Dec 14 12:26:42.458707 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server raise exceptions.NotFound(response)
Dec 14 12:26:42.458889 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server NotFound: not found
Dec 14 12:26:42.459028 ubuntu-xenial-vexxhost-sjc1-0001200467 nova-compute[27625]: ERROR oslo_messaging.rpc.server
Fix proposed to branch: master /review. openstack. org/625616
Review: https:/