Hadoop localhost: frankxulei@localhost: Permission denied (publickey,password)

Hadoop启动HDFS进程的时候报错，提示权限不够，具体信息如图所示：
localhost: frankxulei@localhost: Permission denied (publickey,password).

frankxulei@ubuntu:/usr/local/hadoop$sbin/start-all.sh WARNING: Attempting to start all Apache Hadoop daemons as frankxulei in 10 seconds. WARNING: This is not a recommended production deployment configuration. WARNING: Use CTRL-C to abort. Starting namenodes on [localhost] localhost: frankxulei@localhost: Permission denied (publickey,password). Starting datanodes localhost: frankxulei@localhost: Permission denied (publickey,password). Starting secondary namenodes [ubuntu] ubuntu: frankxulei@ubuntu: Permission denied (publickey,password). Starting resourcemanager Starting nodemanagers localhost: frankxulei@localhost: Permission denied (publickey,password). frankxulei@ubuntu:/usr/local/hadoop$
解决办法，复制导入公钥就可以了，SSH链接需要使用公钥认证：

切换到ssh目录：cd ~/.ssh/

ssh-keygen -t rsa -P ""
cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys

        

          
        
        
        

          

          AI 代码解读
        
      
      

再次启动HDFS就可以了，
sbin/start-dfs.sh