在根目录创建zookeeper文件夹（service1、service2、service3都创建）
[root@localhost /]# mkdir zookeeper
通过Xshell上传文件到service1服务器：上传zookeeper-3.4.6.tar.gz到/software文件夹
2.远程copy将service1下的/software/zookeeper-3.4.6.tar.gz到service2、service3
[root@localhost software]# scp -r /software/zookeeper-3.4.6.tar.gz root@192.168.2.212:/software/
[root@localhost software]# scp -r /software/zookeeper-3.4.6.tar.gz root@192.168.2.213:/software/
3.copy /software/zookeeper-3.4.6.tar.gz到/zookeeper/目录（service1、service2、service3都执行）
[root@localhost software]# cp /software/zookeeper-3.4.6.tar.gz /zookeeper/
4.安装解压zookeeper-3.4.6.tar.gz（service1、service2、service3都执行）
[root@localhost /]# cd /zookeeper/
[root@localhost zookeeper]# tar -zxvf zookeeper-3.4.6.tar.gz
5.在/zookeeper创建两个目录：zkdata、zkdatalog（service1、service2、service3都创建）
[root@localhost zookeeper]# mkdir zkdata
[root@localhost zookeeper]# mkdir zkdatalog
6.进入/zookeeper/zookeeper-3.4.6/conf/目录
[root@localhost zookeeper]# cd /zookeeper/zookeeper-3.4.6/conf/
[root@localhost conf]# ls
configuration.xsl log4j.properties zoo.cfg zoo_sample.cfg
修改zoo.cfg文件
The number of milliseconds of each tick
tickTime=2000
The number of ticks that the initial
synchronization phase can take
initLimit=10
The number of ticks that can pass between
sending a request and getting an acknowledgement
syncLimit=5
the directory where the snapshot is stored.
do not use /tmp for storage, /tmp here is just
example sakes.
dataDir=/zookeeper/zkdata
dataLogDir=/zookeeper/zkdatalog
the port at which the clients will connect
clientPort=2181
the maximum number of client connections.
increase this if you need to handle more clients
maxClientCnxns=60
Be sure to read the maintenance section of the
administrator guide before turning on autopurge.
The number of snapshots to retain in dataDir
autopurge.snapRetainCount=3
Purge task interval in hours
Set to "0" to disable auto purge feature
autopurge.purgeInterval=1
server.1=192.168.2.211:12888:13888
server.2=192.168.2.212:12888:13888
server.3=192.168.2.213:12888:13888
同步修改service2、service3的zoo.cfg配置
myid文件写入（进入/zookeeper/zkdata目录下）
[root@localhost /]# cd /zookeeper/zkdata
[root@localhost /]# echo 1 > myid
myid文件写入service2、service3
echo 2 > myid
echo 3 > myid
查看zk命令：
[root@localhost ~]# cd /zookeeper/zookeeper-3.4.6/bin/
[root@localhost bin]# ls
README.txt zkCleanup.sh zkCli.cmd zkCli.sh zkEnv.cmd zkEnv.sh zkServer.cmd zkServer.sh zookeeper.out
执行zkServer.sh查看详细命令：
[root@localhost bin]# ./zkServer.sh
JMX enabled by default
Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
Usage: ./zkServer.sh {start|start-foreground|stop|restart|status|upgrade|print-cmd}
在service1、service2、service3分别启动zk服务
[root@localhost bin]# ./zkServer.sh start
jps查看zk进程
[root@localhost bin]# jps
31483 QuorumPeerMain
31664 Jps
分别在service1、service2、service3查看zk状态（可以看到leader和follower节点）
[root@localhost bin]# ./zkServer.sh status
JMX enabled by default
Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
Mode: follower
[root@localhost bin]# ./zkServer.sh status
JMX enabled by default
Using config: /zookeeper/zookeeper-3.4.6/bin/../conf/zoo.cfg
Mode: leader
看到leader和follower节点已经安装成功
