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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5091) ORC files should have an option to pad stripes to the HDFS block boundaries
Date Fri, 30 Aug 2013 15:30:54 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5091?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13754794#comment-13754794
] 

Hudson commented on HIVE-5091:
------------------------------

FAILURE: Integrated in Hive-trunk-hadoop1-ptest #145 (See [https://builds.apache.org/job/Hive-trunk-hadoop1-ptest/145/])
HIVE-5091: ORC files should have an option to pad stripes to the HDFS block boundaries (Owen
O'Malley via Gunther Hagleitner) (gunther: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1518830)
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcFile.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcOutputFormat.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/WriterImpl.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestNewIntegerEncoding.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java
* /hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcNullOptimization.java
* /hive/trunk/ql/src/test/resources/orc-file-dump.out

                
> ORC files should have an option to pad stripes to the HDFS block boundaries
> ---------------------------------------------------------------------------
>
>                 Key: HIVE-5091
>                 URL: https://issues.apache.org/jira/browse/HIVE-5091
>             Project: Hive
>          Issue Type: Bug
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.12.0
>
>         Attachments: HIVE-5091.D12249.1.patch, HIVE-5091.D12249.2.patch, HIVE-5091.D12249.3.patch
>
>
> With ORC stripes being large, if a stripe straddles an HDFS block, the locality of read
is suboptimal. It would be good to add padding to ensure that stripes don't straddle HDFS
blocks.

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