[Hadoop]SSH免密码登录以及失败解决方案
1. 创建ssh-key这里我们采用rsa方式,使用如下命令:xiaosi@xiaosi:~$ ssh-keygen -t rsa -f ~/.ssh/id_rsaGenerating public/private rsa key pair.Created directory '/home/xiaosi/.ssh'.Enter passphrase (empty for no pa