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From "Ramya R (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5881) Simplify configuration related to task-memory-monitoring and memory-based scheduling
Date Tue, 02 Jun 2009 11:33:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715488#action_12715488
] 

Ramya R commented on HADOOP-5881:
---------------------------------

It would be useful if the description of the above memory management parameters is added in
mapred-default.xml. Also mapred.tasktracker.vmem.reserved, mapred.task.default.maxvmem and
mapred.task.limit.maxvmem has to be removed from the xml.

> Simplify configuration related to task-memory-monitoring and memory-based scheduling
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5881
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5881
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Vinod K V
>            Assignee: Vinod K V
>             Fix For: 0.20.1
>
>         Attachments: HADOOP-5881-20090526-branch-20.1.txt, HADOOP-5881-20090526.1.txt
>
>
> The configuration we have now is pretty complicated. Besides everything else, the mechanism
of not specifying parameters separately for maps and reduces leads to problems like HADOOP-5811.
This JIRA should address simplifying things and at the same time solving these problems.

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