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Posted to common-dev@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2008/04/10 08:42:04 UTC

[jira] Updated: (HADOOP-3226) Run combiner when merging spills from map output

     [ https://issues.apache.org/jira/browse/HADOOP-3226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Douglas updated HADOOP-3226:
----------------------------------

    Attachment: 3226-0.patch

> Run combiner when merging spills from map output
> ------------------------------------------------
>
>                 Key: HADOOP-3226
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3226
>             Project: Hadoop Core
>          Issue Type: Improvement
>            Reporter: Chris Douglas
>             Fix For: 0.18.0
>
>         Attachments: 3226-0.patch
>
>
> When merging spills from the map, running the combiner should further diminish the volume of data we send to the reduce.

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