zookeeper (二) paxos & fast paxos & FastLeaderElection

参考文章：

http://blog.csdn.net/xhh198781/article/details/10949697

paxos->fast paxos->FastLeaderElection:http://blog.csdn.net/u010039929/article/details/70171672

FastLeaderElection：http://www.cnblogs.com/leesf456/p/6508185.html