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