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Posted to common-dev@hadoop.apache.org by "Michael Bieniosek (JIRA)" <ji...@apache.org> on 2007/04/20 01:38:15 UTC

[jira] Commented: (HADOOP-1274) Configuring different number of mappers and reducers per TaskTracker

    [ https://issues.apache.org/jira/browse/HADOOP-1274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12490198 ] 

Michael Bieniosek commented on HADOOP-1274:
-------------------------------------------

See my HADOOP-1245.  Currently this is possible by setting mapred.tasktracker.tasks.maximum differently for tasktrackers, but the jobtracker will  assign an inappropriate number of jobs when it initially creates the job. 

> Configuring different number of mappers and reducers per TaskTracker
> --------------------------------------------------------------------
>
>                 Key: HADOOP-1274
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1274
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Koji Noguchi
>            Priority: Minor
>
> Depending on the application, it sometimes make sense to have more mappers than reducers assigned to each node. 
> (I'm assuming user either has a dedicated cluster or use HOD.)

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