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Date: Mon, 6 Sep 2010 23:26:34 -0400 (EDT)
From: "Amareshwari Sriramadasu (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Commented: (MAPREDUCE-1597) combinefileinputformat does not
 work with non-splittable files
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-1597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906651#action_12906651 ] 

Amareshwari Sriramadasu commented on MAPREDUCE-1597:
----------------------------------------------------

bq. This patch would have to get merged with the recently committed one from MAPREDUCE-2046
Thanks Dhruba for the review. Uploaded patch is already merged with commit of MAPREDUCE-2046. Will update the test results soon.

> combinefileinputformat does not work with non-splittable files
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-1597
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1597
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Namit Jain
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.22.0
>
>         Attachments: patch-1597.txt
>
>
> CombineFileInputFormat.getSplits() does not take into account whether a file is splittable.
> This can lead to a problem for compressed text files - for example, getSplits() may return more
> than 1 split depending on the size of the compressed file, all the splits recordreader will read the
> complete file.
> I ran into this problem while using Hive on hadoop 20.

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