Hi Henry,

Let me answer your questions at least partially.

Stomp provides a simplified protocol for the messaging which at a time greatly helped effectively adding new functionalities.

We do not have any development plans to separate the broker. AFAIK, in the past there were some attempts to use Rabbit MQ but that has never left the PoC stage(please somebody correct me if I am wrong). The current implementation with internal broker is performant enough (and reliable) to support huge installations (I cannot find relevant documentation right now, hopefully others will post urls) and gives enough flexibility to implement new messaging flows. By huge I mean hundreds of hosts and thousands of VMs communicating with each other.

@Piotr Kliczewski @Martin Perina  Would you like to add anything more?

Artur