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

I was trying to cluster and even when the cookies matched it wouldn't work for me... the only thing that finally worked was setting the ERLANG_HOME variable in my environment variables.

After I set this, I was able to copy the cookie from my master broker to the one I wanted to cluster with and the join worked fine.

"Set ERLANG_HOME to where you actually put your Erlang installation, e.g. C:\Program Files\erlx.x.x (full path). The RabbitMQ batch files expect to execute %ERLANG_HOME%\bin\erl.exe.

Go to Start > Settings > Control Panel > System > Advanced > Environment Variables. Create the system environment variable ERLANG_HOME and set it to the full path of the directory which contains bin\erl.exe. "

https://www.rabbitmq.com/install-windows-manual.html