1.下载Zookeeper最新稳定版本

apache-zookeeper-3.6.1-bin.tar.gz

解压缩
# tar -zxvf apache-zookeeper-3.6.1-bin.tar.gz

重命名
# mv apache-zookeeper-3.6.1-bin/ zookeeper-3.6.1

进入到conf目录，修改配置文件
将 zoo_sample.cfg 复制一份并命名为 zoo.cfg
# cp zoo_sample.cfg zoo.cfg

在zookeeper目录下创建data目录
修改配置文件中的dataDir如下：
# dataDir=/app/soft/zookeeper-3.6.1/data

2.修改zoo.cfg配置

# 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=/app/soft/zookeeper-3.6.1/data
# the port at which the clients will connect
clientPort=2181

3.zookeeper命令

进入到zookeeper目录下的bin文件夹中，使用以下命令：
启动zookeeper
./zkServer.sh start

检查zookeeper启动情况
./zkServer.sh status

使用客户端连接zookeeper
./zkCli.sh

查看zookeeper的进程
ps -ef | grep zookeeper

4.设置zookeeper开机自启动

可以将zookeeper作为一个服务，设置其开机自启，这样每次我们打开虚拟机就可以开启zookeeper。设置zookeeper开机自启需要以下几个步骤：
1.修改/etc/profile文件，添加ZK配置

# vim /etc/profile

#zookeeper
export ZK_HOME=/app/soft/zookeeper-3.6.1
PATH=$ZK_HOME/bin/:$PATH
export ZK_HOME PATH

# source /etc/profile

2.进入 /etc/init.d 目录,创建文件zookeeper，并添加脚本如下：

vim zookeeper

未配置ZK_PATH环境变量
#!/bin/bash
#chkconfig:2345 20 90
#description:zookeeper
#processname:zookeeper
ZK_PATH=/app/soft/zookeeper-3.6.1
case $1 in
         start) sh  $ZK_PATH/bin/zkServer.sh start;;
         stop)  sh  $ZK_PATH/bin/zkServer.sh stop;;
         status) sh  $ZK_PATH/bin/zkServer.sh status;;
         restart) sh $ZK_PATH/bin/zkServer.sh restart;;
         *)  echo "require start|stop|status|restart";;
esac

已配置ZK_PATH环境变量
#!/bin/bash
#chkconfig:2345 20 90
#description:zookeeper
#processname:zookeeper
case $1 in
         start) sh zkServer.sh start;;
         stop)  sh  zkServer.sh stop;;
         status) sh  zkServer.sh status;;
         restart) sh zkServer.sh restart;;
         *)  echo "require start|stop|status|restart";;
esac

为脚本添加权限
# chmod +x zookeeper

3、保存脚本之后，执行以下指令将其注册为服务：
chkconfig --add zookeeper
4.测试其是否生效，这里采用先停服务，再使用命令启动，注意需要修改创建的zookeeper服务权限：

# 启动
[root@qa-11-2 init.d]# service zookeeper start
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
# 停止
[root@qa-11-2 init.d]# service zookeeper stop
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
Stopping zookeeper ... STOPPED
# 状态查看
[root@qa-11-2 init.d]# service zookeeper status
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Error contacting service. It is probably not running.
# 重启
[root@qa-11-2 init.d]# service zookeeper restart
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
Stopping zookeeper ... no zookeeper to stop (could not find file /app/soft/zookeeper-3.6.1/data/zookeeper_server.pid)
/bin/java
ZooKeeper JMX enabled by default
Using config: /app/soft/zookeeper-3.6.1/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@qa-11-2 init.d]# 

5.zookeeper基本操作命令

1. ls /： 使用 ls 命令来查看当前 ZooKeeper 中所包含的内容
2. ls2 /： 查看当前节点数据并能看到更新次数等数据
3. 创建文件，并设置初始内容： create /fy "feiyue" 创建一个新的znode节点"fy"以及与它关联的字符串"feiyue"
4. 获取文件内容： get /fy 确认新创建的znode节点是否包含我们所创建的"feiyue"字符串
5. 修改文件内容： set /fy "feiyue100" 对 zk 所关联的字符串"feiyue"进行设置,修改为"feiyue100"
6. 删除文件： delete /fy 将刚才创建的 znode 删除；rmr /fy 删除节点和他的子节点
7. 退出客户端： quit
8. 帮助命令： help