RabbitMQ, Erlang: How to “make sure the erlang cookies are the same”

Question

I am using RabbitMQ with Grails, and a problem cropped up this morning. When I run rabbitmqctl status it tells me:

C:\\Users\\BuildnTest2>rab         


        

Answer 1

For those out there googling, this same erlang cookie error can happen when you are missing the HOME parameter from your environment configuration. For example, on the default ArchLinux installation of rabbitmq.

In this case, the service is started with systemctl start rabbitmq and it generates a cookie but the cli tools like rabbitmqctl status will not work out of the box because they do not know the home location.

default /etc/rabbitmq/rabbitmq-env.conf

NODENAME=rabbit
NODE_IP_ADDRESS=0.0.0.0
NODE_PORT=5672

LOG_BASE=/var/log/rabbitmq
MNESIA_BASE=/var/lib/rabbitmq/mnesia

modified /etc/rabbitmq/rabbitmq-env.conf

NODENAME=rabbit
NODE_IP_ADDRESS=127.0.0.1
NODE_PORT=5672

HOME=/var/lib/rabbitmq
LOG_BASE=/var/log/rabbitmq
MNESIA_BASE=/var/lib/rabbitmq/mnesia

ref https://bbs.archlinux.org/viewtopic.php?id=191587