Hi, On Wed, Nov 25, 2020 at 04:21:11PM +0100, Oliver Wenz wrote:

...

First of all I'd suggest checking `openstack network agent list` and ensure that lxb agent is present there up and healthy. Next I'd check nova-scheduler log (journalctl eventually) as it might have more insights.

linuxbridge agent is up and healthy and the nova-scheduler log doesn't show any errors either

...

Please check in neutron server logs for the problems with binding port

Indeed, running journalctl and grepping for the instance id shows an error (last lines):

journalctl -u neutron-server -n 300 | grep 33c662c2-99d6-40fb-a716-118ad8b3b193

Nov 25 15:06:58 infra1-neutron-server-container-cbf4b105 neutron-server[88]: 2020-11-25 15:06:58.738 88 INFO neutron.wsgi [req-e5b7df6c-bfde-438a-bbb1-f2713b63e16b 920e739127a14018a55fb4422b0885e7 0f14905dab5546e0adec2b56c0f6be88 - default default] 192.168.110.128,192.168.110.201 "GET /v2.0/ports?device_id=33c662c2-99d6-40fb-a716-118ad8b3b193 HTTP/1.1" status: 200 len: 205 time: 0.3313231 Nov 25 15:07:04 infra1-neutron-server-container-cbf4b105 neutron-server[89]: 2020-11-25 15:07:04.782 89 INFO neutron.wsgi [req-9bdadc77-27d9-4f9d-86b5-349b598b1ba4 eaf8235312004e2da519b54d196f5415 474b7aa9b7894d6782402135c6ef4c2a - default default] 192.168.110.205,192.168.110.201 "GET /v2.0/ports?tenant_id=0f14905dab5546e0adec2b56c0f6be88&device_id=33c662c2-99d6-40fb-a716-118ad8b3b193 HTTP/1.1" status: 200 len: 1084 time: 0.0956030 Nov 25 15:07:05 infra1-neutron-server-container-cbf4b105 neutron-server[89]: 2020-11-25 15:07:05.020 89 INFO neutron.notifiers.nova [-] Nova event response: {'name': 'network-changed', 'server_uuid': '33c662c2-99d6-40fb-a716-118ad8b3b193', 'tag': '1e24a151-bd29-47f8-914b-05c66587541b', 'status': 'completed', 'code': 200} Nov 25 15:07:05 infra1-neutron-server-container-cbf4b105 neutron-server[89]: 2020-11-25 15:07:05.781 89 INFO neutron.wsgi [req-9b729386-4847-4be3-80fa-dce244435ddd eaf8235312004e2da519b54d196f5415 474b7aa9b7894d6782402135c6ef4c2a - default default] 192.168.110.205,192.168.110.201 "GET /v2.0/ports?tenant_id=0f14905dab5546e0adec2b56c0f6be88&device_id=33c662c2-99d6-40fb-a716-118ad8b3b193 HTTP/1.1" status: 200 len: 1084 time: 0.1147285 Nov 25 15:12:12 infra1-neutron-server-container-cbf4b105 neutron-server[89]: 2020-11-25 15:12:12.445 89 INFO neutron.wsgi [req-15cbcb76-04cd-4813-b1f9-d7f6596e14bf 920e739127a14018a55fb4422b0885e7 0f14905dab5546e0adec2b56c0f6be88 - default default] 192.168.110.205,192.168.110.201 "GET /v2.0/ports?device_id=33c662c2-99d6-40fb-a716-118ad8b3b193 HTTP/1.1" status: 200 len: 1085 time: 0.4594653 Nov 25 15:12:14 infra1-neutron-server-container-cbf4b105 neutron-server[83]: 2020-11-25 15:12:14.453 83 WARNING neutron.notifiers.nova [-] Nova event: {'server_uuid': '33c662c2-99d6-40fb-a716-118ad8b3b193', 'name': 'network-vif-deleted', 'tag': '1e24a151-bd29-47f8-914b-05c66587541b', 'status': 'failed', 'code': 422} returned with failed status

So this looks like issue during sending notification to Nova. You should check in Nova logs now why it returned You 422

Kind regards, Oliver

-- Slawek Kaplonski Principal Software Engineer Red Hat