I was following the tutorials on Openstack docs website for a minimal deployment of the Stein release (I am installing it on Ubuntu 18.04 instances). I installed the nova services and made the required configuration. Then I reached this stage and ran the following command on the controller node.
openstack compute service list --service nova-compute
I was expecting to see a nova-compute service running on a compute host as the result, but I get nothing.
I looked at the nova-compute.log file on my comupte node (/var/log/nova/nova-compute)
and I have this error:
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2022-04-25 06:33:46.682 4015 ERROR oslo.messaging._drivers.impl_rabbit [req-313f4c65-0f63-4d8b-8682-6295770701af - - - - -] Connection failed: timed out (retrying in 32.0 seconds): socket.timeout: timed out
2022-04-25 06:34:23.745 4015 ERROR oslo.messaging._drivers.impl_rabbit [req-313f4c65-0f63-4d8b-8682-6295770701af - - - - -] Connection failed: timed out (retrying in 32.0 seconds): socket.timeout: timed out
2022-04-25 06:35:00.803 4015 ERROR oslo.messaging._drivers.impl_rabbit [req-313f4c65-0f63-4d8b-8682-6295770701af - - - - -] Connection failed: timed out (retrying in 32.0 seconds): socket.timeout: timed out
2022-04-25 06:35:37.860 4015 ERROR oslo.messaging._drivers.impl_rabbit [req-313f4c65-0f63-4d8b-8682-6295770701af - - - - -] Connection failed: timed out (retrying in 32.0 seconds): socket.timeout: timed out
2022-04-25 06:36:14.920 4015 ERROR oslo.messaging._drivers.impl_rabbit [req-313f4c65-0f63-4d8b-8682-6295770701af - - - - -] Connection failed: timed out (retrying in 32.0 seconds): socket.timeout: timed out
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Apparently, it has a problem connecting to the rabbitmq service. I searched a lot but I couldn't find anything of use in my case. I've been stuck on this for quite some time now. I'd be very happy if someone could give me an answer.
As Victor Lee suggested in the comments, I checked rabbitmq's port and nothing was wrong there. It was running with no problem. Turned out my firewall didn't allow incoming traffic through rabbitmq's port. So I added a rule to allow it.