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https://issues.apache.org/jira/browse/TEZ-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Seth updated TEZ-1128:
--------------------------------

    Attachment: TEZ-1128.1.txt

Simple patch to setup the partitions so that they are visible in the 
MRPartitioner.

> OnFileUnorderedPartitionedKVOutput does not handle partitioning correctly 
> with the MRPartitioner
> ------------------------------------------------------------------------------------------------
>
>                 Key: TEZ-1128
>                 URL: https://issues.apache.org/jira/browse/TEZ-1128
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Rohini Palaniswamy
>            Assignee: Siddharth Seth
>         Attachments: TEZ-1128.1.txt
>
>
> Two issues:
>    1) It does not set value of 
> TezJobConfig.TEZ_RUNTIME_NUM_EXPECTED_PARTITIONS. So MRPartitioner assumes 
> the number of partitions is 1 and goes with a default partitioner that writes 
> only to last partition. 
>   2) If one of the partitions has empty output (due to issue 1) it gets stuck 
> without fetching input.



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