Erlang's OTP has got some pretty neat ideas. It's a skeletal structure in place for code that acts as servers, where transactions and hot-swappable code is bui

Erlang's OTP has got some pretty neat ideas. It's a skeletal structure in place for code that acts as servers, where transactions and hot-swappable code is built in. In addition, you can have a pool of generic servers that you can choose to 'become' a specialized server doing a specific task, and change it back when you don't have a use for it.