基于centos的大数据hadoop集群搭建说明文档

Hadoop 搭建.....................................................................................................................................2

·准备工作 ..............................................................................................................................2

·基本环境搭建.......................................................................................................................2

·搭建虚拟机...................................................................................................................2

·配置本地 host 文件(这样我们就不用 IP 也能访问虚拟机).......................................4

·配置 Linux 的 hosts 文件和 HOSTNAME（主机名）..................................................5

·关闭 selinux 和防火墙 .................................................................................................7

·配置 ssh ........................................................................................................................7

·配置 jdk（每台服务器都要配置） .............................................................................8

·准备工作