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From "Larry McCay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10769) Add getDelegationToken() method to KeyProvider
Date Fri, 04 Jul 2014 15:06:33 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14052493#comment-14052493
] 

Larry McCay commented on HADOOP-10769:
--------------------------------------

After some more thought on this, I think the way forward may best be the extension pattern.
This leaves the responsibility of fetching tokens and/or populating the credentials object
outside of the the key provider but available for providers that explicitly call it out.


> Add getDelegationToken() method to KeyProvider
> ----------------------------------------------
>
>                 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
>
> 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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