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https://issues.apache.org/jira/browse/TEZ-2636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648113#comment-14648113
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Vikram Dixit K commented on TEZ-2636:
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+1 LGTM.
> MRInput and MultiMRInput should work for cases when there are 0 physical
> inputs
> -------------------------------------------------------------------------------
>
> Key: TEZ-2636
> URL: https://issues.apache.org/jira/browse/TEZ-2636
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.4.0, 0.5.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Fix For: 0.6.2, 0.8.0, 0.7.1, 0.5.5
>
> Attachments: TEZ-2636.1.txt, TEZ-2636.2.txt, TEZ-2636.3.txt,
> TEZ-2636.4.txt, TEZ-2636.4_branch5.txt, TEZ-2636.4_branch7.txt
>
>
> It's possible that an Input is setup without any actual data. This is
> especially valid when a task is processing multiple MRInputs. One side has
> data, but the other does not. In such cases - we currently end up generating
> an error.
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