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From "Guillaume Nodet (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-8572) Have the ability to force the use of the login user
Date Fri, 06 Jul 2012 14:05:35 GMT
Guillaume Nodet created HADOOP-8572:

             Summary: Have the ability to force the use of the login user 
                 Key: HADOOP-8572
                 URL: https://issues.apache.org/jira/browse/HADOOP-8572
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Guillaume Nodet

In Karaf, most of the code is run under the "karaf" user. When a user ssh into Karaf, commands
will be executed under that user.
Deploying hadoop inside Karaf requires that the authenticated Subject has the required hadoop
principals set, which forces the reconfiguration of the whole security layer, even at dev

My patch proposes the introduction of a new configuration property {{hadoop.security.force.login.user}}
which if set to true (it would default to false to keep the current behavior), would force
the use of the login user instead of using the authenticated subject (which is what happen
when there's no authenticated subject at all).  This greatly simplifies the use of hadoop
in such environments where security isn't really needed (at dev time).

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