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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5275) Mapreduce API: TokenCache incompatibility issues with MR1
Date Sat, 15 Jun 2013 00:15:20 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13683951#comment-13683951
] 

Karthik Kambatla commented on MAPREDUCE-5275:
---------------------------------------------

The only issue with adding the methods to Hadoop-2 is that we are expected to support it for
Hadoop-2 and Hadoop-3 at the least. I understand the point of adding the methods, but think
they should at least be marked @Deprecated. What do you think? 

Not suggesting we reopen this. I can address this in MAPREDUCE-5213.
                
> Mapreduce API: TokenCache incompatibility issues with MR1
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-5275
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5275
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Mayank Bansal
>             Fix For: 2.1.0-beta
>
>         Attachments: MAPREDUCE-5275-trunk-1.patch, MAPREDUCE-5275-trunk-2.patch, MAPREDUCE-5275-trunk-3.patch,
MAPREDUCE-5275-trunk-4.patch
>
>
> There're following incompatibility issues:
> * Token<DelegationTokenIdentifier> getDelegationToken(Credentials, String) is removed
> * Credentials loadTokens(String, Configuration) changes to Credentials loadTokens(String,
JobConf)

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