Looks pretty cool, but doing RPC over RMQ is quite expensive. I would rather see good abstractions over ZMQ - that would be really cool. Also as many people he

Looks pretty cool, but doing RPC over RMQ is quite expensive. I would rather see good abstractions over ZMQ - that would be really cool. Also as many people here pointed out, RMQ is a single point of failure which might be acceptable for some cases. To me, the problem is that by design this architecture has a bottleneck which is really hard to get rid off.