[BigData] Hadoop 2.2 Installation `.' no such file or directory

하둡을 설치하고 하둡 명령어를 사용할때 다음과 같은 에러가 나올 수 있다.

 
다음과 같은 이유 때문이며

 

well, your problem regarding ls: '.': No such file or directory' is because there is not home dir on HDFS for your current user. 

Try

hadoop fs -mkdir -p /user/[current login user]
hadoop fs -ls

 

위와 같이 실행을 하게 되면 정상적으로 실행이 될것이다.