Hadoop hdfs permission denied error when I try to make new directory

Question

I am trying to make a new directory in my hdfs using the following command:

hadoop fs -mkdir sample

I am getting this error:

mkdir: Permission denied: user=cloudera, access=WRITE, inode="/user":hdfs:supergroup:drwxr-xr-x

Answer 1

This is because you dont have enough permission to create directory in hdfs. Try running this as sudo:

sudo -u hdfs hadoop fs -mkdir /sample

Alternatively if you want any user to be able to do this, you can change the permission property:

<property>
<name>dfs.permissions.enabled</name>
<value>false</value>
</property>

But this is not recommended because it compromises security.