File extensions not preserved in Hive.checkPaths when renaming new destination
file
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Key: HIVE-2407
URL: https://issues.apache.org/jira/browse/HIVE-2407
Project: Hive
Issue Type: Bug
Affects Versions: 0.7.1
Reporter: Brian Muller
In the checkPaths method of Hive.java, a new destination filename will be
chosen if the source filename already exists in the destination directory.
This new filename follows the simple schema of adding _copy_N to the source
filename (with increasing N until a non-existing filename is found).
If the file has been LZO compressed it is imperative that the extension remain
".lzo" so that the LZO indexer can find it and create a corresponding index
file. It would be much better to use a prefix of "copy_N_" or insert "_copy_N"
somewhere else in the filename.
Without this, Hive and LZO compression will not work when identical source
filenames are inserted into Hive.
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