Comment 4 for bug 2054705

I'm not sure setting this to "fake://" is really best practice, see:

https://docs.openstack.org/oslo.messaging/latest/user/FAQ.html#i-don-t-need-notifications-on-the-message-bus-how-do-i-disable-them

"Notification messages can be disabled using the noop notify driver. Set driver = noop in your configuration file under the [oslo_messaging_notifications] section."

But that's only for notifications.

Then again https://docs.openstack.org/oslo.messaging/latest/admin/drivers.html states:

"
fake

Fake driver used for testing.

This driver passes messages in memory, and should only be used for unit tests."

So this really doesn't sound like you are meant to deploy the "fake://" driver into production.