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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10776) Open up Delegation token fetching and renewal to STORM (Possibly others)
Date Thu, 12 May 2016 12:35:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281468#comment-15281468
] 

Steve Loughran commented on HADOOP-10776:
-----------------------------------------

Can someone do a patch for this for 2.8+?

> Open up Delegation token fetching and renewal to STORM (Possibly others)
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-10776
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10776
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Robert Joseph Evans
>            Priority: Blocker
>
> Storm would like to be able to fetch delegation tokens and forward them on to running
topologies so that they can access HDFS (STORM-346).  But to do so we need to open up access
to some of APIs. 
> Most notably FileSystem.addDelegationTokens(), Token.renew, Credentials.getAllTokens,
and UserGroupInformation but there may be others.
> At a minimum adding in storm to the list of allowed API users. But ideally making them
public. Restricting access to such important functionality to just MR really makes secure
HDFS inaccessible to anything except MR, or tools that reuse MR input formats.



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