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From John Lilley <john.lil...@redpoint.net>
Subject HDFS and YARN security and interface impacts
Date Fri, 25 Apr 2014 15:42:12 GMT
Hi, can anyone help me with this?

From: John Lilley [mailto:john.lilley@redpoint.net]
Sent: Sunday, April 20, 2014 3:40 PM
To: user@hadoop.apache.org
Subject: HDFS and YARN security and interface impacts

We have an application that interfaces directly to HDFS and YARN (no MapReduce).  It does
not currently support any Hadoop security other than the insecure "trust the client" defaults.
 I've been doing some reading about Hadoop security, but it mostly assumes that applications
will be MapReduce.  For a "native" YARN/HDFS application, what changes if any must be made
to the API calls to support Kerberos or other authentication?  Does it just happen automatically
at the OS level using the authenticated user ID of the process?  If there's a good reference
I'd appreciate it.

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