环境操作系统:CentOS release 6.7 (Final)JDK:openjdk version "1.8.0_91"Hadoop:hadoop-2.7.2Hadoop 下载地址:http://apache.fayea.com/hadoop/common/stable/hadoop-2.7.2.tar.gz搭建步骤1.创建用户和用户组groupadd hadoopus...