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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-7189) Add ability to enable 'debug' property in JAAS configuration
Date Mon, 14 Mar 2011 21:08:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006635#comment-13006635
] 

Allen Wittenauer commented on HADOOP-7189:
------------------------------------------

I agree.  This definitely looks like something that should get reformulated so that we could
set it for debugging without rebuilding and/or (even worse) restarting the service.

> Add ability to enable 'debug' property in JAAS configuration
> ------------------------------------------------------------
>
>                 Key: HADOOP-7189
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7189
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Priority: Minor
>         Attachments: enable-UGI-debug-example.txt
>
>
> Occasionally users have run into weird "Unable to login" messages. Unfortunately, JAAS
obscures the underlying exception message in many cases because it thinks leaking the exception
might be insecure in itself. Enabling the "debug" option in the JAAS configuration gets it
to dump the underlying issue and makes troubleshooting this kind of issue easier.

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