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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-827) increase hive.mapjoin.cache.numrows default value
Date Mon, 14 Sep 2009 05:20:57 GMT

    [ https://issues.apache.org/jira/browse/HIVE-827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12754829#action_12754829
] 

Namit Jain commented on HIVE-827:
---------------------------------

It is actually backed my persistent disk, so there is no correctness issue, but most of the
applications may be able to use a higher default value

> increase hive.mapjoin.cache.numrows default value
> -------------------------------------------------
>
>                 Key: HIVE-827
>                 URL: https://issues.apache.org/jira/browse/HIVE-827
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>         Attachments: hive.827.1.patch
>
>
> Currently, it is 10000 and leads to bad performance

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