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https://issues.apache.org/jira/browse/MAPREDUCE-2046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated MAPREDUCE-2046:
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Attachment: patch-2046-ydist.txt
Patch for Yahoo! distribution on top MAPREDUCE-2021.
> A CombineFileInputSplit cannot be less than a dfs block
> --------------------------------------------------------
>
> Key: MAPREDUCE-2046
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2046
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Namit Jain
> Assignee: dhruba borthakur
> Fix For: 0.22.0
>
> Attachments: combineFileInputFormatMaxSize.txt,
> combineFileInputFormatMaxSize2.txt, patch-2046-ydist.txt
>
>
> I ran into this while testing some hive features.
> Whether we use hiveinputformat or combinehiveinputformat, a split cannot be
> less than a dfs block size.
> This is a problem if we want to increase the block size for older data to
> reduce memory consumption for the
> name node.
> It would be useful if the input split was independent of the dfs block size.
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