Zookeeper集群安装和基础配置

概述

zookeeper官网：https://zookeeper.apache.org/

安装环境

安装部署

三台机器做相同操作，同一机器安装集群端口需要不相同

依赖环境安装

tar -zxvf jdk-8u211-linux-x64.tar.gz
mv jdk1.8.0_211 /opt/
vi  /etc/profile
#根据实际情况修改JAVA_HOME
export JAVA_HOME=/opt/jdk1.8.0_211
export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
source /etc/profile
#测试
java -version

zookeeper安装

mkdir -p /data/zookeeper
tar zxvf apache-zookeeper-3.5.8-bin.tar.gz
mv apache-zookeeper-3.5.8-bin /data/zookeeper/zookeeper-3.5.8
mkdir -p /data/zookeeper/zookeeper-3.5.8/{data,logs}

基础配置

vim /data/zookeeper/zookeeper-3.5.8/conf/zoo.cfg

tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zookeeper/zookeeper-3.5.8/data
dataLogDir=/data/zookeeper/zookeeper-3.5.8/logs
clientPort=2181
server.1=192.168.199.10:2182:2183
server.2=192.168.199.11:2182:2183
server.3=192.168.199.12:2182:2183

<!-- 192.168.199.10 -->
echo 1 > /data/zookeeper/zookeeper-3.5.8/data/myid
<!-- 192.168.199.11 -->
echo 2 > /data/zookeeper/zookeeper-3.5.8/data/myid
<!-- 192.168.199.12 -->
echo 3 > /data/zookeeper/zookeeper-3.5.8/data/myid

配置启动脚本

vim /usr/lib/systemd/system/zookeeper.service

[Unit]
Description=zookeeper
After=network.target remote-fs.target nss-lookup.target
[Service]
Type=forking
ExecStart=/data/zookeeper/zookeeper-3.5.8/bin/zkServer.sh start
ExecReload=/data/zookeeper/zookeeper-3.5.8/bin/zkServer.sh restart
ExecStop=/data/zookeeper/zookeeper-3.5.8/bin/zkServer.sh stop
[Install]
WantedBy=multi-user.target

systemctl daemon-reload

开机自启动设置

# 加入开机启动
systemctl daemon-reload
systemctl enable zookeeper
# 查看开机是否启动成功
systemctl is-enabled zookeeper
# 启动服务
systemctl start zookeeper
# 停止服务
systemctl stop zookeeper

防火墙开放端口（三台机器都放行端口）

firewall-cmd --zone=public --add-port=2181/tcp --permanent
firewall-cmd --zone=public --add-port=2182/tcp --permanent
firewall-cmd --zone=public --add-port=2183/tcp --permanent
firewall-cmd --reload
setenforce 0