erlang - how to limit message queue or emulate it?

Question

Right now I am doing Process ! Message, but as i googled a bit, a message queue size is only limited to memory. I have a tree of processes where leaves generate messages and

Answer 1

RabbitMQ implements this in the form of Credit Flow. More info on this blog post: http://videlalvaro.github.io/2013/09/rabbitmq-internals-credit-flow-for-erlang-processes.html