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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2014/07/17 19:15:05 UTC

[jira] [Resolved] (MAPREDUCE-316) Splittability of input should be controllable by application

     [ https://issues.apache.org/jira/browse/MAPREDUCE-316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Allen Wittenauer resolved MAPREDUCE-316.
----------------------------------------

    Resolution: Won't Fix

Closing this as won't fix.  As was pointed out, there are other ways.

> Splittability of input should be controllable by application
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-316
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-316
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>         Environment: ALL
>            Reporter: Milind Bhandarkar
>            Assignee: Senthil Subramanian
>         Attachments: HADOOP-1441_1.patch
>
>
> Currently, isSplittable method of FileInputFormat always returns true. For some applications, it becomes necessary that the map task process entire file, rather than a block. Therefore, splittability of input (i.e. block-level split vs file-level-split) should be controllable by user via a configuration variable. The default could be block-level split, as is.



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