MacPorts installs an old version of RabbitMQ. To get the latest, you need to add the RabbitMQ repository as described here:
http://www.rabbitmq.com/macports.html
However, when you try and install it, it throws the following error:
$ sudo port install rabbitmq-server Error: Unable to open port: tar: +CONTENTS: Not found in archive tar: Error exit delayed from previous errors. To report a bug, see
As it turns out, there is a bug in MacPorts 2.0.1.
http://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2011-September/014855.html
Upgrading to 2.0.3 resolved it.
