This tutorial showed how to do basic stream processing on top of Storm. There's lots more things you can do with Storm's primitives. One of the most interesting applications of Storm is Distributed RPC, where you parallelize the computation of intense functions on the fly.
参考链接：
官方文档：Distributed RPC
徐明明博客：
Twitter Storm: DRPC简介
Twitter Storm源代码分析之DRPC架构细节
