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https://issues.apache.org/jira/browse/YARN-6989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16645629#comment-16645629
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Vrushali C commented on YARN-6989:
----------------------------------
Committed to trunk as part of
https://github.com/apache/hadoop/commit/045069efeca07674be1571252bc4c685aa57b440
Committed to branch-2 as part of
https://github.com/apache/hadoop/commit/7a5d27dde4abab8db35895b77d0ce93bfe99c8a1
> Ensure timeline service v2 codebase gets UGI from HttpServletRequest in a
> consistent way
> ----------------------------------------------------------------------------------------
>
> Key: YARN-6989
> URL: https://issues.apache.org/jira/browse/YARN-6989
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Vrushali C
> Assignee: Abhishek Modi
> Priority: Major
> Attachments: YARN-6989.001.patch, YARN-6989.002.patch
>
>
> As noticed during discussions in YARN-6820, the webservices in timeline
> service v2 get the UGI created from the user obtained by invoking
> getRemoteUser on the HttpServletRequest .
> It will be good to use getUserPrincipal instead of invoking getRemoteUser on
> the HttpServletRequest.
> Filing jira to update the code.
> Per Java EE documentations for 6 and 7, the behavior around getRemoteUser and
> getUserPrincipal is listed at:
> http://docs.oracle.com/javaee/6/tutorial/doc/gjiie.html#bncba
> https://docs.oracle.com/javaee/7/tutorial/security-webtier003.htm
> {code}
> getRemoteUser, which determines the user name with which the client
> authenticated. The getRemoteUser method returns the name of the remote user
> (the caller) associated by the container with the request. If no user has
> been authenticated, this method returns null.
> getUserPrincipal, which determines the principal name of the current user and
> returns a java.security.Principal object. If no user has been authenticated,
> this method returns null. Calling the getName method on the Principal
> returned by getUserPrincipal returns the name of the remote user.
> {code}
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