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https://issues.apache.org/jira/browse/OOZIE-1498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13742393#comment-13742393
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Robert Kanter commented on OOZIE-1498:
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I'm not sure I follow the issue; can you explain it again?  Also, I'd be 
hesitant to change the default value of a configuration property that has been 
like that for quite a long time.  
                
> Any user is allowed to manage job not as owner
> ----------------------------------------------
>
>                 Key: OOZIE-1498
>                 URL: https://issues.apache.org/jira/browse/OOZIE-1498
>             Project: Oozie
>          Issue Type: Bug
>            Reporter: Eugene Shevchuk
>            Assignee: Eugene Shevchuk
>         Attachments: OOZIE-1498.patch
>
>
> The problem was that anonymous users are enabled in oozie configuration. It 
> can lead to the following problem. When user's token is expired 
> PseudoAuthenticationHandler searches for user.name parameter in request. 
> Obviously, it can't find it because client doesn't know anything about 
> expired token. So auth handler assumes that user is anonymous and return 
> anonymous token with username=null. Oozie server can't deal with doAs 
> parameter and anonymous request simultaneously because 500 error will occur 
> (user is null). By default this option is disabled so any user can manage any 
> job. Now it's disabled by default

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