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From "Torsten Mielke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7101) UserGroupInformation.getCurrentUser() fails when called from non-Hadoop JAAS context
Date Mon, 11 Mar 2013 08:21:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13598632#comment-13598632

Torsten Mielke commented on HADOOP-7101:

Filling in for Claus Ibsen here as well: 
{quote}Can you tell me the branch name and commit revision for this?{quote}
The latest 0.23.5 release has this fix included. 
However we did not find any 1.x release that contains this code fix. See my comment from 01/Feb/13.
I checked the source code of all relevant 1.x releases and did not see the fix. 
The fix is present in 2.0 branch however there has not been any release of 2.0 yet. 

So trying to use the Hadoop client libs of any 1.x version when running inside another container
(e.g. OSGi) fails.
> 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

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