ZooKeeper集群搭建

上传zookeeper到/export/servers

scp -r D:桌面hadoop笔记资料4_jar包zookeeper-3.4.10.tar.gz root@hadoop102:/export/servers

解压zookeeper

[root@hadoop102 servers]# tar -zxvf zookeeper-3.4.10.tar.gz -C ./
# 重命名zookeeper
[root@hadoop102 servers]# mv zookeeper-3.4.10 zookeeper

修改zookeeper配置文件

[root@hadoop102 zookeeper]# cd /export/servers/zookeeper/conf/
[root@hadoop102 conf]# cp zoo_sample.cfg zoo.cfg
[root@hadoop102 conf]# vim zoo.cfg 
编辑内容如下
dataDir=/export/data/zookeeper/zkdata
dataLogDir=/export/data/zookeeper/zklog
server.0=hadoop102:2888:3888
server.1=hadoop103:2888:3888
server.2=hadoop104:2888:3888

新建zookeeper执行文件存放目录与日志目录

[root@hadoop102 conf]# mkdir -p /export/data/zookeeper/zkdata
[root@hadoop102 conf]# mkdir -p /export/data/zookeeper/zklog

编辑myid文件

[root@hadoop102 conf]# mkdir -p /export/data/zookeeper/zklog
[root@hadoop102 conf]# cd /export/data/zookeeper/zkdata/
[root@hadoop102 zkdata]# echo 0 >myid

配置zookeeper环境变量

[root@hadoop102 conf]# cd /etc/profile.d/
[root@hadoop102 profile.d]# vim my_env.sh
#内容如下
#ZooKeeper_HOME
export ZK_HOME=/export/servers/zookeeper
export PATH=$PATH:$ZK_HOME/bin

分发my_env.sh文件

[root@hadoop102 profile.d]# scp ./my_env.sh root@hadoop103:/etc/profile.d/
[root@hadoop102 profile.d]# scp ./my_env.sh root@hadoop104:/etc/profile.d/

分发zookeeper

[root@hadoop102 ~]# scp -r /export/servers/zookeeper root@hadoop103:/export/servers/
[root@hadoop102 ~]# scp -r /export/servers/zookeeper root@hadoop104:/export/servers/

分别在hadoop103,hadoop104新建文件夹编辑myid文件

[root@hadoop103 ~]# mkdir -p /export/data/zookeeper/zkdata
[root@hadoop103 ~]# mkdir -p /export/data/zookeeper/zklog
[root@hadoop103 ~]# cd /export/data/zookeeper/zkdata/
[root@hadoop103 zkdata]# echo 1 >myid
[root@hadoop103 zkdata]# 
[root@hadoop104 ~]# mkdir -p /export/data/zookeeper/zkdata
[root@hadoop104 ~]# mkdir -p /export/data/zookeeper/zklog
[root@hadoop104 ~]# cd /export/data/zookeeper/zkdata/
[root@hadoop104 zkdata]# echo 2 > myid

刷新环境变量

source /etc/profile

启动zookeeper集群

[root@hadoop102 bin]# zkServer.sh start

编辑群起zookeeper脚本

#!/bin/bash

if [ $# -lt 1 ]
then
    echo "No Args Input..."
    exit ;
fi

case $1 in
"start")
        echo " =================== 启动 zookeeper集群 ==================="
        ssh hadoop102 "/export/servers/zookeeper/bin/zkServer.sh start"
        ssh hadoop103 "/export/servers/zookeeper/bin/zkServer.sh start"
        ssh hadoop104 "/export/servers/zookeeper/bin/zkServer.sh start"
;;
"stop")
        echo " =================== 关闭 zookeeper集群 ==================="
        ssh hadoop102 "/export/servers/zookeeper/bin/zkServer.sh stop"
        ssh hadoop103 "/export/servers/zookeeper/bin/zkServer.sh stop"
        ssh hadoop104 "/export/servers/zookeeper/bin/zkServer.sh stop"
;;
*)
    echo "Input Args Error..."
;;
esac

至此zookeeper集群搭建完成