hadoop完全分布式环境搭建

1，设置Java环境

rpm -ivh jdk-8u73-linux-x64.rpm

添加环境变量到启动文件vi /etc/profile

export JAVA_HOME=/usr/java/jdk1.8.0_73
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tool.jar

测试java环境

[[email protected] ~]# more test.java
public class test{
    public static void main(String args[]){
        System.out.println("A new jdk test...sqing!");
    }
}

javac test.java

[[email protected] ~]# java test
A new jdk test...sqing!

看到这，表明java环境设置成功！

2，配置hosts

192.168.1.208 hadoop1
192.168.1.210 hadoop2

3，配置ssh无密登录