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From "Alexander Schwid (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4331) DBOutputFormat: add batch size support for JDBC and recieve DBWritable object in value not in key
Date Tue, 28 Oct 2008 10:34:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643177#action_12643177
] 

Alexander Schwid commented on HADOOP-4331:
------------------------------------------

You right, all work perfect with increased number of reduces and has the same effect as using
batch in one reduce.
So, i think this task is not nessesary.

> DBOutputFormat: add batch size support for JDBC and recieve  DBWritable object in value
not in key
> --------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4331
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4331
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: Alexander Schwid
>            Priority: Minor
>             Fix For: 0.20.0
>
>         Attachments: patch.txt
>
>
> package mapred.lib.db
> added batch size support for JDBC in DBOutputFormat 
> recieve  DBWritable object in value not in key in DBOutputFormat

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