软件环境

JDK1.8
zookeeper-3.5.5

集群搭建

wget http://mirror.bit.edu.cn/apache/zookeeper/zookeeper-3.5.5/apache-zookeeper-3.5.5-bin.tar.gz
 #下载zookeeper3.5.5到当前目录
tar -xzvf apache-zookeeper-3.5.5-bin.tar.gz #解压zookeeper到当前目录
mv apache-zookeeper-3.5.5-bin zookeeper
cd zookeeper   #进入zookeeper目录
mkdir data
mkdir log
cd conf/
cp zoo_sample.cfg zoo.cfg
vi zoo.cfg

文件末位追加

dataDir=/root/zookeeper/data
dataLogDir=/root/zookeeper/log
server.1=内网IP:2888:3888
server.2=内网IP:2888:3888
server.3=内网IP:2888:3888

data目录添加myid文件

cd ../data/
touch myid
# 第一台编写1，第二台编写2，第三台编写3。
echo "1">>myid

添加环境变量

vim /etc/profile
# zookeeper
export ZK_HOME=/root/zookeeper
export PATH=$ZK_HOME/bin:$PATH
source /etc/profile

启动Zookeeper

zkServer.sh start   #三台机器都要做此操作，否则通过zkServer.sh status查看启动状态时，   
                    #可能会有Error contacting service. It is probably not running.错误信息。
                    #具体查看可以在$ZK_HOME/zookeeper.out查看详细的日志信息

查看状态

zkServer.sh status #查看当前机器的zookeeper状态
[root@iZwz90bzsu76894wmz3hieZ data]# zkServer.sh status
ZooKeeper JMX enabled by default
Using config: /root/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower

zookeeper图形化的客户端工具
https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip；