Zookeeper集群搭建

一、环境准备

 下载zookeeper文件,zookeeper下载地址。本次安装部署使用的版本为zookeeper-3.4.9.

 三台Linux服务器，配置静态IP,分别为192.168.1.203、192.168.1.204、192.168.1.205

三台服务器均安装好java环境

二、zookeeper安装

解压zookeeper下载文件

cd /Data/servers  #软件索要安装的目录

tar -zxvf  zookeeper-3.4.9.tar.gz

 配置zookeeper

cd  /Data/servers/zookeeper-3.4.9/conf  #进入到配置文件所在目录

cp  zoo_sample.cfg zoo.cfg    #复制配置样例文件

vi  zoo.cfg  #编辑配置文件

      zoo.cfg文件内容如下

# 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=/tmp/zookeeper   //修改前

dataDir=/Data/servers/zookeeper //修改后

# 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.

#

# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance

#

# 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

//新增部分内容

server.1=192.168.1.203:2888:3888

server.2=192.168.1.204:2888:3888

server.3=192.168.1.205:2888:3888

 在每台zookeeper的服务上创建dataDir中配置的目录即/Data/servers/zookeeper

mkdir -p /Data/servers/zookeeper

cd /Data/servers/zookeeper

touch myid

vim myid  //设置文件的值为当前服务器在集群中的序号后保存即可

zookeeper启动

cd /Data/servers/zookeeper-3.4.9/bin/ 

./zkServer.sh  start  

# 可以使用 ./zkServer.sh start-foreground让其打印出日志输出

三、测试

  使用zkCli.sh分别连到三台服务器确认连接正常。// ./zkCli.sh -server 192.168.1.203

  在其中一台创建节点，查看其它两台是否同步到创建的节点信息