集群环境ssh免密码登录设置

ssh-copy-id -i hadoop01 #登录hadoop02,将公钥拷贝到hadoop01的authorized_keys中

ssh-copy-id -i hadoop01#登录hadoop03,将公钥拷贝到hadoop01的authorized_keys中

ssh-copy-id -i hadoop01#登录hadoop04,将公钥拷贝到hadoop01的authorized_keys中

ssh-copy-id -i hadoop01 #登录hadoop05,将公钥拷贝到hadoop01的authorized_keys中，最终authorized_keys文件内容如下：