hadoop-hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jeff Hammerbacher (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-827) increase hive.mapjoin.cache.numrows default value
Date Sat, 12 Sep 2009 06:26:57 GMT

    [ https://issues.apache.org/jira/browse/HIVE-827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12754488#action_12754488
] 

Jeff Hammerbacher commented on HIVE-827:
----------------------------------------

For posterity, why does the value of 10,000 lead to bad performance?

> 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

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message