Health checks upstreams for nginx

https://github.com/JingchengLi/swapdb/wiki

ADFS (Ali Distributed File System) is an evolutional version of Hadoop which delivers high availability, auick-restart and other features.

Use Aho-Corasick state machine to string matching(C language, under BSD License)

TFS (Taobao File System) is a distributed file system similar to GFS.

yaoweibin html5 slides (steal from http://code.google.com/p/html5slides/)