This exchange type is for load-balancing among consumers. It's basically a direct exchange, with the exception that, instead of each consumer bound to that exchange with the same routing key getting a copy of the message, the exchange type randomly selects a queue to route to.
There is no weighting or anything, so maybe load "balancing" might be a bit of a misnomer. It uses Erlang's crypto:rand_uniform/2 function, if you're interested.
git clone git://github.com/jbrisbin/random-exchange.git cd random-exchange make package cp dist/*.ez $RABBITMQ_HOME/plugins
To use it, declare an exchange of type "x-random".
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