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https://issues.apache.org/jira/browse/HADOOP-8458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13293230#comment-13293230
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Aaron T. Myers commented on HADOOP-8458:
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The patch contains a few lines that are over 80 chars, with some over 100.
Otherwise the patch looks good to me. +1 from me once this is addressed.
I agree that this shouldn't affect host-based tokens at all. Daryn, could you
please take a look soon to allay any concerns you might have?
> 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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