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From "Gopal V" <go...@hortonworks.com>
Subject Review Request 17634: ZeroCopy and Direct ByteBuffer decompression for ORC files
Date Sat, 01 Feb 2014 04:53:55 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/17634/
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Review request for hive, Gunther Hagleitner and Owen O'Malley.


Bugs: HIVE-6347
    https://issues.apache.org/jira/browse/HIVE-6347


Repository: hive-git


Description
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Zero Copy Read path for ORC + Zlib&Snappy decompressors wrapping the DirectDecompressor
interface from HADOOP-10047


Diffs
-----

  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 84ee78f 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/DirectDecompressionCodec.java PRE-CREATION

  ql/src/java/org/apache/hadoop/hive/ql/io/orc/InStream.java 6da3d03 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java a5747a6 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/Reader.java 2bab0ce 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java 56f25b7 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/RecordReaderImpl.java 0df82b9 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/SnappyCodec.java e3131a3 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/VectorizedOrcInputFormat.java d904c44 
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ZlibCodec.java a75fdea 
  ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java 03fc705 

Diff: https://reviews.apache.org/r/17634/diff/


Testing
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Updated seek tests to test with zero-copy reads on.

TPC-DS queries on scale=2 flat ORC data.


Thanks,

Gopal V


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