On a related note, do you know if anyone is using Go with Lua plugins (or any other plugin system for that matter) in production. If so, does it work well?

Heka? https://github.com/mozilla-services/heka

http://hekad.readthedocs.org/en/latest/sandbox/index.html#sa...

I'm acutally doing json-rpc over ZeroMQ using a scheme similar to the one described above to do file conversion tasks.

A ZeroMQ proxy using a ROUTER/DEALER pair with a bunch of REP sockets in the background.

The clients use a simple REQ socket.

All in plain old C using ZeroMQ and jansson for JSON while conforming to the json-rpc 2.0 spec.

If I had to do that, I'd probably go with a queue on Redis or Postgres. "Cogs bad".

What are the advantadges of ZeroMQ when you're still on one computer?

That was very helpful thank you.