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So... time to eat some crow.  I had a customer who is automating their user onboarding process for his Hadoop cluster and wanted to know if he could use a linux account besides hdfs to create a HDFS user home directory and set the appropriate permissions (see "Creating a New HDFS User" in my Hadoop Cheat Sheet).  I told him he was out of luck and that was just the way it was going to be.

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To make matters worse, I eventually realized my "you must switch to hdfs to create the home directory and change the owner" is actually wrong.  You can just switch to the newly created user and keep on keeping on.

Code Block
languagebash
[root@sandbox ~]# useradd nonadminuser
[root@sandbox ~]# su nonadminuser
[nonadminuser@sandbox root]$ hdfs dfs -mkdir /user/nonadminuser
[nonadminuser@sandbox root]$ hdfs dfs -chgrp nonadminuser /user/nonadminuser
[nonadminuser@sandbox root]$ hdfs dfs -ls /user

   ... rm'd some lines ...

drwxr-xr-x   - nonadminuser   nonadminuser           0 2014-08-14 00:01 /user/nonadminuser

   ... rm'd some lines ...

If you want to have a process that doesn't involve switching to any other user, (or more importantly, want to have other linux users with superuser rights) then please read on.

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