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Date: Mon, 11 Jun 2012 18:42:43 +0000 (UTC)
From: "Alejandro Abdelnur (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-8458) Add management hook to
 AuthenticationHandler to enable delegation token operations support
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    [ https://issues.apache.org/jira/browse/HADOOP-8458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13292962#comment-13292962 ] 

Alejandro Abdelnur commented on HADOOP-8458:
--------------------------------------------

@Daryn, any update on your side? BTW, don't see how this JIRA would affect host-based tokens as it is only enabling a mechanism for the authhandler to perform auth management operations.
                
> Add management hook to AuthenticationHandler to enable delegation token operations support
> ------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8458
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8458
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: security
>    Affects Versions: 2.0.1-alpha
>            Reporter: Alejandro Abdelnur
>            Assignee: Alejandro Abdelnur
>             Fix For: 2.0.1-alpha
>
>         Attachments: HADOOP-8458.patch
>
>
> Currently hadoop-auth AuthenticationHandler only authenticates a request.
> While it can easily be extended to authenticate delegation tokens, it cannot handle the delegation token get/renew/cancel operations.
> The motivation of this new feature is that the above delegation token operations should be handled by a security component (hadoop-auth) instead of a functional component (httpfs implementation). Ideally we should have a complete separation of concerns between delegation token management and FileSystem/MapReduce/YARN API, but we don't. This change is a step on that directory for HTTP based services (like HttpFS).

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