伪分布式安装基本思想
zookeeper的安装包保存一份，但是zoo.cfg配置多份，启动zookeeper服务器的时候指定不同的zoo.cfg即可。
即启动时这样启动：
zkServer.sh start zk1.cfg
zkServer.sh start zk2.cfg
zkServer.sh start zk3.cfg
http://blog.fens.me/hadoop-zookeeper-intro/
zookeeper的Will not attempt to authenticate using SASL (无法定位登录配置)
http://www.tuicool.com/articles/jayMje
CentOS 安装rz和sz命令
http://blog.csdn.net/lazythinker/article/details/23469123
secureCRT传输文件的方法
http://www.cnblogs.com/liuweilinlin/archive/2012/06/22/2558445.html
CentOS6自带openjdk的卸载
http://blog.csdn.net/duguduchong/article/details/8816371
http://blog.csdn.net/wangjiannuaa/article/details/13767093
CentOS6.5安装telnet命令
http://blog.sina.com.cn/s/blog_4f925fc30102vj75.html