[rabbitmq-discuss] newbie problem--'Error: unable to connect to node 'rabbit at rabbitmq-small02-dev': nodedown'

Emile Joubert emile at rabbitmq.com
Wed Mar 14 11:51:16 GMT 2012

Hi John,

On 12/03/12 19:21, John Stoner wrote:
> Error: unable to connect to node 'rabbit at rabbitmq-small02-dev':
> nodedown
> diagnostics:
> - nodes and their ports on rabbitmq-small02-dev: [{rabbit,57641},

Does the RabbitMQ logfile on rabbitmq-small02-dev contain an entry about
a connection attempt from a disallowed node at this time?

> I stop the server:
> [jstoner at rabbitmq-small02-dev]> service rabbitmq-server stop
> Stopping rabbitmq-server: RabbitMQ is not running
> rabbitmq-server.

Subsequent commands indicate that RabbitMQ was still running after this
command was issued. Check if you have any processes running starting
with "beam". Subsequent steps won't make any difference until you
succeed in restarting the broker. Kill the process if necessary.

> {rabbitmqctl12928,46801}]
> - current node: 'rabbitmqctl12928 at rabbitmq-small02-dev'
> - current node home dir: /var/lib/rabbitmq
> - current node cookie hash: [hashtext]

What is [hashtext] ? Does it match the other node?

Also check the EC2-specific instructions at
paying close attention to the section on hostnames.


More information about the rabbitmq-discuss mailing list