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From "Taras Ledkov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4507) Hadoop: allow direct shuffle mode when combiner is set
Date Tue, 17 Jan 2017 11:52:26 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15825929#comment-15825929
] 

Taras Ledkov commented on IGNITE-4507:
--------------------------------------

The workflow with combiner doesn't not differ so much. So, we have to set up mapper index
for combiner task to correct work of the partitioned output.

> Hadoop: allow direct shuffle mode when combiner is set
> ------------------------------------------------------
>
>                 Key: IGNITE-4507
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4507
>             Project: Ignite
>          Issue Type: Task
>          Components: hadoop
>    Affects Versions: 1.8
>            Reporter: Vladimir Ozerov
>            Assignee: Taras Ledkov
>             Fix For: 2.0
>
>
> Currently "direct" shuffle mode is not used when combiner is set. It is necessary to
investigate root cause of this limitation and remove it if possible.



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