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https://issues.apache.org/jira/browse/HADOOP-8552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413213#comment-13413213
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Devaraj Das commented on HADOOP-8552:
-------------------------------------

Hi Karthik, is this on the client or on the server side? (Guessing its on 
client.. please confirm). In general, the audit log stuff doesn't make sense on 
the client side. It's meant to be used on the server side only (and in 
deployments I know about, the security audit logging is turned off on the 
client side). 
Your patch will work though. But I'll note that it might be introducing 
compatibility issues due to the filename change of the log file (if someone is 
collecting logs based on file names, etc.).
                
> Conflict: Same security.log.file for multiple users. 
> -----------------------------------------------------
>
>                 Key: HADOOP-8552
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8552
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: conf, security
>    Affects Versions: 1.0.3, 2.0.0-alpha
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>         Attachments: HADOOP-8552_branch1.patch, HADOOP-8552_branch2.patch
>
>
> In log4j.properties, hadoop.security.log.file is set to SecurityAuth.audit. 
> In the presence of multiple users, this can lead to a potential conflict.
> Adding username to the log file would avoid this scenario.

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