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Posted to dev@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2013/10/27 21:24:30 UTC

[jira] [Created] (HIVE-5663) Refactor ORC RecordReader to operate on direct & wrapped ByteBuffers

Gopal V created HIVE-5663:
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             Summary: Refactor ORC RecordReader to operate on direct & wrapped ByteBuffers
                 Key: HIVE-5663
                 URL: https://issues.apache.org/jira/browse/HIVE-5663
             Project: Hive
          Issue Type: Improvement
          Components: File Formats
    Affects Versions: 0.13.0
         Environment: Ubuntu LXC 
            Reporter: Gopal V
            Assignee: Gopal V


The current ORC RecordReader implementation assumes array structures backing the ByteBuffers it passes around between RecordReaderImpl and Compressed/Uncompressed InStream objects.

This patch attempts to refactor those assumptions out of both classes, allowing the future use of direct byte buffers within ORC (as might come from HDFS zero-copy readers).



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