combinefileinputformat does not work with non-splittable files
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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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