Comment 1 for bug 1863579

As far as neutron goes, this is part of Ml2Plugin method _start_rpc_notifiers

https://zuul.opendev.org/t/openstack/build/bd8c3d336030431686071cb26f2793d2/log/primary/logs/kolla/neutron/neutron-server.txt#260

2020-02-14 14:45:22.591 6 DEBUG neutron.plugins.ml2.plugin [req-b7615e16-e470-4444-8342-86fca030273c - - - - -] neutron.plugins.ml2.plugin.Ml2Plugin method _start_rpc_notifiers called with arguments () {} wrapper /var/lib/kolla/venv/lib/python3.6/site-packages/oslo_log/helpers.py:66

Since this error message is more like "I'm not ready, retry in a bit", rather than "I'm broken, die", we would like it to be treated as such.