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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-2798) YarnClient doesn't need to translate Kerberos name of timeline DT renewer
Date Sun, 02 Nov 2014 20:15:33 GMT
Zhijie Shen created YARN-2798:
---------------------------------

             Summary: YarnClient doesn't need to translate Kerberos name of timeline DT renewer
                 Key: YARN-2798
                 URL: https://issues.apache.org/jira/browse/YARN-2798
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Zhijie Shen
            Assignee: Zhijie Shen
            Priority: Blocker


Now YarnClient will automatically get a timeline DT when submitting an app in a secure mode.
It will try to parse the yarn-site.xml/core-site.xml to get the RM daemon operating system
user. However, the RM principal and auth_to_local may not be properly presented to the client,
and the client cannot translate the principal to the daemon user properly. On the other hand,
AbstractDelegationTokenIdentifier will do this translation when create the token. However,
since the client has already translated the full principal into a short user name (which may
not be correct), the server can no longer apply the translation any more, where RM principal
and auth_to_local are always correct.



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