RabbitMQ is ridiculously trivial to set up in a clustered configuration. Even more advanced things like HA policies and user permissions are super easy to do.

RabbitMQ is ridiculously trivial to set up in a clustered configuration. Even more advanced things like HA policies and user permissions are super easy to do. RabbitMQ's problem is that has no tolerance for network partitions, and also tends to be very buggy in the presence of such.