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https://issues.apache.org/jira/browse/HADOOP-10769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14053196#comment-14053196
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Aaron T. Myers commented on HADOOP-10769:
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+1, the latest patch looks good to me. I'm going to commit this momentarily.

> Create KeyProvider extension to handle delegation tokens
> --------------------------------------------------------
>
>                 Key: HADOOP-10769
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10769
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 3.0.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Arun Suresh
>         Attachments: HADOOP-10769.1.patch, HADOOP-10769.2.patch, 
> HADOOP-10769.3.patch
>
>
> The KeyProvider API needs to return delegation tokens to enable access to the 
> KeyProvider from processes without Kerberos credentials (ie Yarn containers).
> This is required for HDFS encryption and KMS integration.



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