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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1567) increase hive.mapjoin.maxsize to 10 million
Date Tue, 25 Oct 2011 18:28:32 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135315#comment-13135315
] 

Hudson commented on HIVE-1567:
------------------------------

Integrated in Hive-trunk-h0.21 #1032 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1032/])
    HIVE-1567. Remove hive.mapjoin.maxsize - it was not being used
(Asuhtosh Chauhan via namit)

namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1188449
Files : 
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/conf/hive-default.xml
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/AbstractMapJoinOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/HashTableSinkOperator.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/MapJoinOperator.java

                
> increase hive.mapjoin.maxsize to 10 million
> -------------------------------------------
>
>                 Key: HIVE-1567
>                 URL: https://issues.apache.org/jira/browse/HIVE-1567
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: He Yongqiang
>            Assignee: Ashutosh Chauhan
>         Attachments: hive-1567.patch
>
>
> i saw in a very wide table, hive can process 1million rows in less than one minute (select
all columns).
> setting the hive.mapjoin.maxsize to 100k is kind of too restrictive. Let's increase this
to 10 million.

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