Steve Loughran created SPARK-13148:
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             Summary: support zero-keytab Oozie application launch on a secure 
cluster 
                 Key: SPARK-13148
                 URL: https://issues.apache.org/jira/browse/SPARK-13148
             Project: Spark
          Issue Type: New Feature
          Components: YARN
    Affects Versions: 1.6.0
         Environment: YARN cluster with Kerberos enabled, launched from Oozie 
—where Oozie passes down the delegation tokens
            Reporter: Steve Loughran


Oozie can launch Spark instances on insecure clusters, and on a secure cluster 
if Oozie is set up to provide a keytab.

What it cannot currently do is launch a Spark application on a YARN cluster 
without a keytab. In this situation, Oozie collects the delegation tokens it is 
setup to collect (as a superuser in the cluster), saves them to a file, then 
points to the file in the `HADOOP_TOKEN_FILE_LOCATION` environment variable.

These tokens need to be used to launch the application —rather than try to get 
some more



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