HDFS -rmr permissions

[Brian Karlak]

Hello --

As far as I can tell, "hadoop dfs -rmr" only checks the permissions of  
the directory to be deleted and it's parent.  Unlike Unix, however, it  
does not seem to check the permissions of the directories / files  
contained within the directory to be deleted.

Is this by design?  It seems dangerous.  For instance, we have a  
directory where we want to allow people to deposit common resources  
for a project.  Its permissions need to be 777, otherwise only one  
person can write to it.  But with 777 permissions, any fool can  
accidentally wipe it.

(Of course, if we have /trash set up, accidental writes are not as big  
a deal, but still ...)

Thoughts / comments?  Is there a way to make -rmr check the  
permissions of the files within the directories it's deleting, just as  
unix does?  If not, is this a legit feature request?  (I checked JIRA,  
but I didn't find anything on this ...)

Thanks,
Brian