CentOs7 安装Hadoop-3.1.0集群搭建
虚拟机准备 master 172.16.20.11 slave1 172.16.20.12 slave2 172.16.20.13 安装JDK version 1.8.0_121,注意需要配置环境变量。 安装:参考 https://blog.csdn.net/boonya/article/details/55506386 SSH免密登录 1、修改hostname [root@localhost local]# hostname master [root@localhost local]# hostname master [root@localhost local]# [root@localhost local]# hostname slave1 [root@localhost local]# hostname slave1 [root@localhost local]# [root@localhost local]# hostname slave2 [root@localhost local]# hostname slave2 [root@localhost local]# 2、修改/etc/hosts文件 172.16.20.11 master 172.16.20.12 slave1 172.16.20.13 slave2 3、ping验证 [root@localhost