Comment 4 for bug 1892063

We are seeing this again here: https://solutions.qa.canonical.com/v2/testruns/c26f6331-7387-4938-8921-9c09302d8087/

Lots of python errors in the crashdump, e.g.:
```
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils Traceback (most recent call last):
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/cotyledon/_utils.py", line 95, in exit_on_exception
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils yield
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/cotyledon/_service.py", line 139, in _run
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils self.run()
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/octavia/controller/queue/v1/consumer.py", line 47, in run
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils self.message_listener.start()
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in wrapper
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils states[state].run_once(lambda: fn(self, *args, **kwargs),
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 188, in run_once
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils post_fn = fn()
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 267, in <lambda>
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils states[state].run_once(lambda: fn(self, *args, **kwargs),
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/server.py", line 413, in start
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils self.listener = self._create_listener()
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/rpc/server.py", line 150, in _create_listener
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils return self.transport._listen(self._target, 1, None)
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils File "/usr/lib/python3/dist-packages/oslo_messaging/transport.py", line 139, in _listen
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils raise exceptions.InvalidTarget('A server\'s target must have '
octavia/octavia-worker.log:2022-10-25 13:04:32.622 72424 ERROR cotyledon._utils oslo_messaging.exceptions.InvalidTarget: A server's target must have topic and server names specified:<Target server=juju-c4a296-4-lxd-9>
```

Logs can be found here:
https://oil-jenkins.canonical.com/artifacts/c26f6331-7387-4938-8921-9c09302d8087/index.html