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From "Kevin Wilfong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-3593) Output files of SMB join grow indefinitely
Date Wed, 17 Oct 2012 21:40:04 GMT
Kevin Wilfong created HIVE-3593:
-----------------------------------

             Summary: Output files of SMB join grow indefinitely
                 Key: HIVE-3593
                 URL: https://issues.apache.org/jira/browse/HIVE-3593
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.10.0
            Reporter: Kevin Wilfong
            Assignee: Kevin Wilfong


The output files of a SMB join are prefixed by the big table's partition spec that was used
to create them.  The length of the bucket number portion of the file name is updated to be
the same length as the length of the task ID.  Since the task ID is the name of the file,
this means that if the output of a SMB join is used as the big table of another SMB join,
the output files will increase by the size of the original partition spec.  Compound this
and the file size can grow indefinitely.

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