hadoop伪分布式搭建[zyz123@Master ~]$ ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa生成一个密钥再输入以下命令后回车[zyz123@Master ~]$ ssh-copy-id -i ~/.ssh/id_rsa.pub zyz123@192.168.245.136输入当前用户的密码后回车再次切入用户就不需要密码了clear解压压缩包tar