Hello, When deleting a instance by the openstack API (DELETE​ {tenant_id}​/servers/​{server_id}) we see the following error on the neutron server, the instance isn’t deleted and change to error status: 2015-07-06 13:00:31.084 45873 ERROR neutron.notifiers.nova [req-7cf6c8a7-15a2-4c7e-8a84-97e173697ab0 None] Failed to notify nova on events: [{'status': 'completed', 'tag': u'267d2fc6-8ccb-4e6a-b88b-9caa3f09ba83', 'name': 'network-vif-unplugged', 'server_uuid': u'1eb1b855-e8fd-4df0-840e-d5fae0b69dda'}] 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova Traceback (most recent call last): 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/neutron/notifiers/nova.py", line 187, in send_events 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova batched_events) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/v1_1/contrib/server_external_events.py", line 39, in create 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova return_raw=True) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/base.py", line 152, in _create 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova _resp, body = self.api.client.post(url, body=body) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 312, in post 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova return self._cs_request(url, 'POST', **kwargs) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 298, in _cs_request 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova method, **kwargs) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 268, in _time_request 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova resp, body = self.request(url, method, **kwargs) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova File "/usr/lib/python2.6/site-packages/novaclient/client.py", line 262, in request 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova raise exceptions.from_response(resp, body, url, method) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova NotFound: No instances found for any event (HTTP 404) (Request-ID: req-63a9ba3f-f1d3-4c5f-ae94-e6a7b4e6bb15) 2015-07-06 13:00:31.084 45873 TRACE neutron.notifiers.nova 2015-07-06 13:00:31.130 45873 INFO neutron.wsgi [-] (45873) accepted ('10.121.36.25', 49882) Any help appreciated! Cheers, Chris