I'm trying to create a group on one of my datanodes that will have superuser privileges for hdfs and associated fs commands.
So far I have:
Checked to see that dfs.permissions.superusergroup=supergroup (default)
Created a local group on the datanode using : groupadd supergroup
Added a local linux user to supergroup
I still receive errors that I'm not the super user when I run "hadoop dfsadmin -report" and I should be able to access anything within the hdfs regardless of permission as a super user but I can't.