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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4421) Improve memory usage by ORC dictionaries
Date Wed, 08 May 2013 13:29:23 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13651881#comment-13651881
] 

Hudson commented on HIVE-4421:
------------------------------

Integrated in Hive-trunk-h0.21 #2091 (See [https://builds.apache.org/job/Hive-trunk-h0.21/2091/])
    HIVE-4421 : Improve memory usage by ORC dictionaries (Owen Omalley via Ashutosh Chauhan)
(Revision 1480159)

     Result = FAILURE
hashutosh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1480159
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/DynamicByteArray.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/DynamicIntArray.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/MemoryManager.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/OutStream.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/PositionedOutputStream.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/RedBlackTree.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/orc/StringRedBlackTree.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/TestMemoryManager.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/TestStringRedBlackTree.java
* /hive/trunk/ql/src/test/resources/orc-file-dump.out

                
> Improve memory usage by ORC dictionaries
> ----------------------------------------
>
>                 Key: HIVE-4421
>                 URL: https://issues.apache.org/jira/browse/HIVE-4421
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>             Fix For: 0.12.0
>
>         Attachments: HIVE-4421.D10545.1.patch, HIVE-4421.D10545.2.patch, HIVE-4421.D10545.3.patch,
HIVE-4421.D10545.4.patch
>
>
> Currently, for tables with many string columns, it is possible to significantly underestimate
the memory used by the ORC dictionaries and cause the query to run out of memory in the task.


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