Hadoop-cdh4下载地址：http://www.cloudera.com/content/cloudera-content/cloudera-docs/CDHTarballs/3.25.2013/CDH4-Downloadable-Tarballs/CDH4-Downloadable-Tarballs.html一、建立linux用户二、上传文件hadoop cdh4文件三、ssh无验证登陆四、Hadoop2配置3、测试命令：