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    On Tuesday, August 2, 2016 9:04 AM, ravi teja <raviort...@gmail.com> wrote:
 

 Hi,
We are evaluating Ranger for authorization over our existing hadoop cluster.Had 
some doubts:   
   - I wonder , is ranger auth a substitute of HDFS authorization 
(FSPermissionChecker) or a layer above it? - Layer above.   

   - If the hdfs and ranger rules are conflicting, eg: ranger allows but hdfs 
denies, which rule will be used? - Ranger rules imposed.
   - Does Ranger work with NN federation? - Yes


I was going through many articles but was unable to get these answers,it would 
be great if someone can help me here.

Thanks in advance,Ravi

  

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