大数据之—Zookeeper环境搭建

目录

• 前言
• 一、下载
• 二、安装
• 三、集群部署
• 四、注意

前言

参考博客：https://blog.csdn.net/weixin_55008454/article/details/128445784

一、下载

zk仓库地址：https://archive.apache.org/dist/zookeeper/
软件包：https://archive.apache.org/dist/zookeeper/zookeeper-3.8.1/apache-zookeeper-3.8.1-bin.tar.gz

二、安装

mkdir -p /opt/zookeeper && cd /opt/zookeeper
tar zxvf apache-zookeeper-3.8.1-bin.tar.gz 
cd /opt/zookeeper/apache-zookeeper-3.8.1-bin/

配置环境变量：vim /etc/profile.d/my_env.sh

# ZOOKEEPER_HOME
export ZOOKEEPER_HOME=/opt/zookeeper/apache-zookeeper-3.8.1-bin
export PATH=$PATH:$ZOOKEEPER_HOME/bin

同步文件：xsync /etc/profile.d/my_env.sh

刷新环境变量

三、集群部署

node1、node2、node3

mkdir -p /opt/zookeeper/zkData
# 此步骤最后处理，注意每个节点的值不一样，分别为2、3、4
vim /opt/zookeeper/zkData/myid
cp /opt/zookeeper/apache-zookeeper-3.8.1-bin/conf/zoo_sample.cfg /opt/zookeeper/apache-zookeeper-3.8.1-bin/conf/zoo.cfg

修改配置文件：vim /opt/zookeeper/apache-zookeeper-3.8.1-bin/conf/zoo.cfg

# 1、修改	
dataDir=/opt/zookeeper/zkData
# 2、添加集群配置	
####################### cluster ########################## 
# 2888为选举端口,3888为心跳端口
server.2=node1:2888:3888
server.3=node2:2888:3888
server.4=node3:2888:3888

集群管理脚本：touch /opt/zookeeper/zk && chmod +x /opt/zookeeper/zk && vim /opt/zookeeper/zk

#!/bin/bash

host_names=(node1 node2 node3)
cmd_bin="/opt/zookeeper/apache-zookeeper-3.8.1-bin/bin/zkServer.sh"

case $1 in "start")
for host in ${host_names[@]}
do
  echo ---------- zk $host 启动 ----------
  ssh $host "$cmd_bin start"
done
;;

"stop")
for host in ${host_names[@]}
do
  echo ---------- zk $host 停止 ----------
  ssh $host "$cmd_bin stop"
done
;;

"status")
for host in ${host_names[@]}
do
  echo ---------- zk $host 状态 ----------
  ssh $host "$cmd_bin status"
done
;;
esac

同步：xsync /opt/zookeeper/

修改权限：sudo chown -R root:root /opt/zookeeper/

修改节点标识：

# 这两个文件的内容要对应
echo 11 > /opt/zookeeper/zkData/myid
echo 12 > /opt/zookeeper/zkData/myid
echo 13 > /opt/zookeeper/zkData/myid

vim /opt/zookeeper/apache-zookeeper-3.8.1-bin/conf/zoo.cfg
server.11=node1:2888:3888
server.12=node2:2888:3888
server.13=node3:2888:3888

四、注意

如果启动不起来，就更换/opt/zookeeper/zkData/myid的值，多尝试几次应该就可以了