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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5156) Hadoop-examples-1.x.x.jar cannot run on Yarn
Date Thu, 02 May 2013 17:54:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13647751#comment-13647751
] 

Karthik Kambatla commented on MAPREDUCE-5156:
---------------------------------------------

+1. Not particular on it: the comment on the {{void driver}} should probably be "API compatible
with Hadoop 1.x"
                
> Hadoop-examples-1.x.x.jar cannot run on Yarn
> --------------------------------------------
>
>                 Key: MAPREDUCE-5156
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5156
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>            Priority: Blocker
>         Attachments: MAPREDUCE-5156.1.patch
>
>
> M/R examples are run through ProgramDriver.driver. ProgramDriver.driver returns void
in hadoop-1, while it returns int in hadoop-2. Therefore, the function signatures in the example
jar and yarn are incompatible.

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