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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-3701) MapReduce jobs need to perform kerberos login before instantiating Job
Date Mon, 30 Mar 2015 19:43:52 GMT
Josh Elser created ACCUMULO-3701:
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             Summary: MapReduce jobs need to perform kerberos login before instantiating Job
                 Key: ACCUMULO-3701
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3701
             Project: Accumulo
          Issue Type: Bug
          Components: client
            Reporter: Josh Elser
            Assignee: Josh Elser
            Priority: Blocker
             Fix For: 1.7.0


[~billie.rinaldi] found another nice bug through testing out running a Continuous Verify MapReduce
job with Kerberos/SASL enabled. She provided a keytab and SASL was enabled in the client conf,
but when the job was submitted, it failed because there were no kerberos credentials.

* Instantiate Job (caches currentUser which is nobody)
* Login with keytab programmatically, get Accumulo delegation token
* Job tries to get HDFS delegation token, and fails

We need to ensure that a UGI login happens when a keytab is provided as an option *before*
a Job is created.



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