Linux下安装jdk1.8和zookeeper3.6.0

1.下载jdk1.8和zookeeper3.6.0的安装包

1.1 jdk官网下载地址：https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html
1.2 zk官网下载地址：https://archive.apache.org/dist/zookeeper/zookeeper-3.6.0/apache-zookeeper-3.6.0-bin.tar.gz

2.上传到linux服务器

//安装上传工具sz
yum install -y lrzsz
//创建安装目录
mkdir /opt/xiaoqiaobian
cd /opt/xiaoqiaobian
//执行上传命令
rz
//选择安装包进行上传

3.上传后解压安装

//3.1解压jdk和zookeeper
tar -zxvf jdk-8u161-linux-x64.tar.gz
tar -zxvf apache-zookeeper-3.6.0-bin.tar.gz
//3.4给解压后的文件目录重命名
mv jdk1.8.0_161 jdk1.8

4.修改环境变量

//4.1设置环境变量
vi /etc/profile
//4.2在最下面添加以下信息
#set java environment
export JAVA_HOME=/opt/xiaoqiaobian/jdk1.8
export CLASSPATH=$JAVA_HOME/lib
export PATH=$JAVA_HOME/bin:$PATH

#set zookeeper environment
export ZOOKEEPER_HOME=/opt/xiaoqiaobian/apache-zookeeper-3.6.0-bin
export PATH=$PATH:$ZOOKEEPER_HOME/bin
//4.3命令让修改生效
source /etc/profile

5.zookeeper配置

//5.1创建data和logs目录
cd apache-zookeeper-3.6.0-bin
mkdir data
mkdir logs
//5.2修改配置文件
cd conf
mv zoo_sample.cfg zoo.cfg
vi zoo.cfg
//5.3zoo.cfg配置如下
ticketTime=2000
clientPort=2181
dataDir=/opt/xiaoqiaobian/apache-zookeeper-3.6.0-bin/data
dataLogDir=/opt/xiaoqiaobian/apache-zookeeper-3.6.0-bin/logs

6.测试成功

//6.1查看jdk版本号
java -version
/*
[root@hecs-x-medium-2-linux-20200705142322 java]# java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
*/

//6.2查看zk
cd /opt/xiaoqiaobian/apache-zookeeper-3.6.0-bin/bin
./zkServer.sh start
ps -ef|grep zookeeper
/*
[root@centos bin]# ps -ef|grep zookeeper
root     17724     1  3 23:33 pts/0    00:00:01 /opt/xiaoqiaobian/jdk1.8/bin/java -
Dzookeeper.log.dir=/opt/xiaoqiaobian/apache-zookeepe-3.6.0-bin/bin/../logs -
Dzookeeper.log.file=zookeeper-root-server-VM-0-8-centos.log -
Dzookeeper.root.logger=INFO,CONSOLE -XX:+HeapDumpOnOutOfMemoryError -
XX:OnOutOfMemoryError=kill -9 %p -cp /opt/xiaoqiaobian/apache-
zookeeper-3.6.0-bin/bin/..
*/