Getting error in command hdfs dfs -mkdir

Question

I have just started learning Hadoop & had setup my own VM. I am learning basic commands. One of the basic command is to create a directory ully.

I am trying to create a test directory in HDFS.

hdfs dfs -mkdir hdfs://localhost:9000/usr/hadoop/test

I am getting the following error message:

/usr/lib/hadoop/etc/hadoop/hadoop-env.sh: line 2: ./hadoop-env.sh: Permission denied

11/6/17 12:08:02 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

mkdir: `hdfs://localhost:9000/usr/hadoop/test': No such file or directory

I am creating a directory but the error is saying that the directory is not there. I think this has something to do with the permissions. Can someone help me out?

Answer 1

You are getting this error because the parent directory which you are referring i.e. /usr/Hadoop doesn’t exist. So hdfs is not able to create this directory. You can go to localhost:9000 in your web browser to check this. You can use this command to create the parent as well as target directory.
 

hdfs dfs -mkdir -p hdfs://localhost:9000/usr/hadoop/test