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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-1597) combinefileinputformat does not work with non-splittable files
Date Fri, 12 Mar 2010 21:57:27 GMT
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


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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