I'm seriously thinking about Erlang now. What raised my eyebrows was "2-3 million concurrent connections on a single FreeBSD box"[this is what WhatsApp achieved]. Async network IO can be done with library support in Python, natively in nodeJS, etc. I wonder if one can push those stacks to this level.
Can I get anything like this with a more common tech stack? I.e. Node JS, Java + NIO, Python + Twisted (or something else)? 10K, I get. But 1 million+ is freakin awesome in my books.
