Instead of rate-limiting, there are two other options that solve the GP's concerns: the high water mark which controls the maximum queue length and the

Instead of rate-limiting, there are two other options that solve the GP's concerns: the high water mark which controls the maximum queue length and the swap size, which saves messages to disk when the queue is full. http://api.zeromq.org/zmq_setsockopt.html http://api.zeromq.org/zmq_setsockopt.html