hadoop-hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1065) When data is large,a reducer's memory can not hold the big data by using list to store the data, and get an error "out of memory"
Date Wed, 20 Jan 2010 22:31:55 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803029#action_12803029
] 

Zheng Shao commented on HIVE-1065:
----------------------------------

Please swap the order of the table in the join clause. If it's "... from a join b ...", we
can do "... from b join a ...".


> When data is large,a reducer's memory can not hold the big data by using list to store
the data, and get an error "out of memory"
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-1065
>                 URL: https://issues.apache.org/jira/browse/HIVE-1065
>             Project: Hadoop Hive
>          Issue Type: Bug
>    Affects Versions: 0.3.0
>         Environment: redhat enterprise 4.0
>            Reporter: fuyangchang
>            Priority: Critical
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> When data is large,I do a "join" operation ,a reducer's memory can not hold the big data
by using list to store the data, and get an error "out of memory"

-- 
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