You will need changes in kolla and kolla-ansible. You might try comparing with ussuri, since we use 3.8 in ussuri. Upgrading to ussuri and beyond would be (far) better still. Mark On Tue, 22 Feb 2022 at 21:17, Albert Braden <ozzzo@yahoo.com> wrote:

We are running kolla-ansible Train and I successfully followed the recommendations in [1] to change our RMQ settings, and our RMQ works a lot better now, but one of the recommendations is to run RMQ 3.8 and so far I haven’t been able to make it work. Our working RMQ container has these settings in the Dockerfile to force 3.7 and the appropriate erlang version:

'erlang-21.3*', 'rabbitmq-server-3.7.23*'

I changed those settings to allow 3.8:

'rabbitmq-server-3.*.*el8ost*'

Now my RMQ container fails to start with:

{"log":"20:29:28.440 [error] Supervisor rabbit_prelaunch_sup had child prelaunch started with rabbit_prelaunch:run_prelaunch_first_phase() at undefined exit with reason no_configuration_schema_found in context start_error\r\n","stream":"stdout","time":"2022-02-22T20:29:28.441064637Z"}

What am I missing?

[1] https://wiki.openstack.org/wiki/Large_Scale_Configuration_Rabbit