1.解压jdk到src文件夹下
tar zxvf /h3cu/jdk-8u311-linux-x64.tar.gz -C /usr/local/src/
2.修改jdk1.8.0_311 名字为jdk
mv /usr/local/src/jdk1.8.0_311 /usr/local/src/jdk
3.解压Hadoop到src文件夹下
tar zxvf /h3cu/hadoop.2.7.7.tar.gz -C /usr/local/src/
4.修改hadoop-2.7.7 名字为hadoop
mv /usr/local/src/hadoop.2.7.7/usr/local/src/hadoop
5.jdk配置环境变量
vim /root/.bash_profile
添加以下变量路径 #jdk export JAVA_HOME=/usr/local/src/jdk PATH=.:$JAVA_HOME:$JAVA_HOME/bin:$PATH:$HOME/bin
6.配置hadoop环境变量
vim /root/.bash_profile
#hadoop export HADOOP_HOME=/usr/local/src/hadoop PATH=.:$JAVA_HOME:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH:$HOME/bin
7.让已配置的环境变量生效
source /root/.bash_profile
8.启动Java，Hadoop检查一下是否配置成功
