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https://issues.apache.org/jira/browse/MAPREDUCE-235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-235.
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Resolution: Not a Problem
Closing this with Not A Problem.
> Custom Splitter for handling many small files
> ---------------------------------------------
>
> Key: MAPREDUCE-235
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-235
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Subramaniam Venkatraman Krishnan
> Assignee: Subramaniam Venkatraman Krishnan
>
> Hadoop by default allocates a Map to a file irrespective of size. This is not
> optimal if you have a large number of small files, for e.g:- If you 2000
> 100KB files, 2000 Maps will be allocated for the job.
> The Custom Multi File Splitter collapses all the small files to a single
> split till the DFS Block Size is hit.
> It also take care of handling big files by splitting them on Block Size and
> adding up all the reminders(if any) to a further splits of Block Size.
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