Are you Debugging? Websocket wont start if you are debugging or using --dev

Update your odoo.conf as follows:

limit_time_cpu = 86400

limit_time_real = 86400

limit_memory_soft = 13538884000

limit_memory_hard = 140388840001

max_cron_threads = 1

workers = 2

longpolling_port = 8072

xmlrpc_interface = 127.0.0.1

netrpc_interface = 127.0.0.1

proxy_mode = True  # If you are using a reverse proxy like Nginx

After updating your odoo.conf file, restart the Odoo service:

This warning occurs because you haven't specified the gevent_port number, and your server's longpolling_port is active. You have two options to resolve this:

1. Disable Longpolling: Set longpolling_port = False in your configuration.
2. Specify Gevent Port: Assign a value to gevent_port, for example, gevent_port = 9090.

odoo.config file

longpolling_port = False
gevent_port = 9090

Please note that if you're hosting multiple Odoo instances, the gevent_port should be different for each instance to avoid conflicts, as the longpolling_port will still be running on the server.

Let me know if you need any further assistance!

Port 8072 might be already in use by another application on your system.

Solution: Check if any other application is listening on port 8072. If so, either stop the conflicting application or change the port used by Odoo.