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From "Owen O'Malley (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-2711) Make the header of RCFile unique
Date Thu, 12 Jan 2012 16:31:40 GMT
Make the header of RCFile unique
--------------------------------

                 Key: HIVE-2711
                 URL: https://issues.apache.org/jira/browse/HIVE-2711
             Project: Hive
          Issue Type: Bug
          Components: Serializers/Deserializers
            Reporter: Owen O'Malley


The RCFile implementation was copied from Hadoop's SequenceFile and copied the 'magic' string
in the header. This means that you can't use the header to distinguish between RCFiles and
SequenceFiles.

I'd propose that we create a new header for RCFiles (RCF?) to replace the current SEQ. To
maintain compatibility, we'll need to continue to accept the current 'SEQ\06' and just make
new files contain the new header.

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