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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-7101) UserGroupInformation.getCurrentUser() fails when called from non-Hadoop JAAS context
Date Wed, 12 Jan 2011 02:26:47 GMT
UserGroupInformation.getCurrentUser() fails when called from non-Hadoop JAAS context
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                 Key: HADOOP-7101
                 URL: https://issues.apache.org/jira/browse/HADOOP-7101
             Project: Hadoop Common
          Issue Type: Bug
          Components: security
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Blocker
             Fix For: 0.22.0


If a Hadoop client is run from inside a container like Tomcat, and the current AccessControlContext
has a Subject associated with it that is not created by Hadoop, then UserGroupInformation.getCurrentUser()
will throw NoSuchElementException, since it assumes that any Subject will have a hadoop User
principal.

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