Linux上zk节点在哪存着,Linux下的zookeeper集群搭建（3节点）

1. 环境安装

主机名称

IP

zookeeper1

192.168.21.66

zookeeper2

192.168.21.57

zookeeper3

192.168.21.17

2.准备zookeeper

2.1 安装jdk8(必须)

1)Centos(普通用户请在命令前加sudo)

yum install java-1.8.0-openjdk* -y

2)Ubuntu(普通用户请在命令前加sudo)

add-apt-repository ppa:webupd8team/java

apt-get update

apt-get install oracle-java8-installer

3)检查jdk版本

java -version

2.2 下载zookeeper

1)下载如下的zookeeper的包到zookeeper1上

https://pan.baidu.com/s/1mVCqv-bJW9cAxO44Xosn2A 提取码: tphy

2)在zookeeper1下做如下操作

#将zookeeper解压到/usr/local/zookeeper下面

mv zookeeper-3.4.12.tar /usr/local

tar -zxvf zookeeper-3.4.12.tar

mv zookeeper-3.4.12 zookeeper

#拷贝sample配置

cp /usr/local/zookeeper/conf/zoo_sample.cfg /usr/local/zookeeper/conf/zoo.cfg

#修改/usr/local/zookeeper/conf/zoo.cfg

dataDir=/usr/local/zookeeper/data

#在文件末尾添加，这里的三个ip为内网ip，填写实际就好(ip a查询)

server.1=10.10.10.3:2888:3888

server.2=10.10.10.4:2888:3888

server.3=10.10.10.7:2888:3888

3)初始化集群信息

#1.在zookeeper01下执行

mkdir /usr/local/zookeeper/data echo "1" > /usr/local/zookeeper/data/myid#2.在zookeeper02下执行

mkdir /usr/local/zookeeper/data echo "2" > /usr/local/zookeeper/data/myid#3.在zookeeper03下执行

mkdir /usr/local/zookeeper/data echo "3" > /usr/local/zookeeper/data/myid

3. 运行zk集群&测试

1.分别在zookeeper01，zookeeper02，zookeeper03下执行

/usr/local/zookeeper/bin/zkServer.sh start

2.分别在zookeeper01，zookeeper02，zookeeper03下执行

/usr/local/zookeeper/bin/zkServer.sh status

应该有一台为leader节点，另外两台为follower节点

至此，zookeeper的3节点集群已经搭建完毕。