Can I change rabbitmq node name?

I have started to run RabbitMQ on EC2 linux.

I'm running a RabbitMQ on default settings, so my RabbitMQ node name is rabbit@{hostname} now and the hostname is default EC2 hostname, ip-{my IP address}.

I want to change the node name, if I change the directories and .pid name in mnesia/ and rabbitmq.conf file as rabbit@newhost, would it be work?

Solution 1:

I think yes, you can configure any of this parameters using environment variables, it's described on RabbitMQ configuration page https://www.rabbitmq.com/configure.html

Solution 2:

The following is what should be in the /etc/rabbitmq/rabbitmq-env.conf file (create it):

NODENAME=rabbitNodeName@myServerName

Next restart RabbitMQ:

sudo service rabbitmq-server restart