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https://issues.apache.org/jira/browse/HADOOP-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13573281#comment-13573281
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Claus Ibsen commented on HADOOP-7101:
-------------------------------------
I mean when people uses Hadoop 0.2 and it works. Then if they upgrade to Hadoop
1.x and it no longer works.
eg the fix only went into the 0.2 code branch, and not the 1.x code branch.
> UserGroupInformation.getCurrentUser() fails when called from non-Hadoop JAAS
> context
> ------------------------------------------------------------------------------------
>
> 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
>
> Attachments: hadoop-7101.txt
>
>
> 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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