As you correctly observed, I mainly used ZeroMQ for the fan-in, so I need only consider one request at a time without worrying about chunking, disconnection or

As you correctly observed, I mainly used ZeroMQ for the fan-in, so I need only consider one request at a time without worrying about chunking, disconnection or other lower (socket) level issues. For speed, the idea is that you could potentially have multiple read-only servers answering queries simultaneous (all taking from the dealer). This isn't fleshed out yet. It possibly involves splitting requests into two queues for read and write requests (instead of only "run"). I'd be interested in hearing any info about potential slowdowns if you have them.