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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1018) Document changes to the memory management and scheduling model
Date Thu, 10 Jun 2010 08:12:15 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12877369#action_12877369
] 

Hemanth Yamijala commented on MAPREDUCE-1018:
---------------------------------------------

Vinod, I was in the process of generating two patches; thanks for taking extra steps. That
will fix the broken links etc. I will also work on your comment related to occupying multiple
slots. In cluster_setup.xml, I had removed the documentation on java.opts and ulimits specifically.
I have linked them saying they are described in detail in mapred_tutorial, where I have indeed
described them in detail. Having the same definitions at two places would be very difficult
to maintain. Once you have looked at the changes for mapred_tutorial, you could tell if this
suffices or not.

Please expect a new patch in a day or so.

> Document changes to the memory management and scheduling model
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-1018
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1018
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 0.21.0
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: MAPRED-1018-1.patch, MAPRED-1018-2.patch, MAPRED-1018-3.patch, MAPRED-1018-4.patch.txt,
MAPRED-1018-5.patch.txt, MAPRED-1018-6.patch.txt, MAPRED-1018-7.patch.txt, MAPRED-1018-8.patch.txt,
MAPRED-1018-commons.patch
>
>
> There were changes done for the configuration, monitoring and scheduling of high ram
jobs. This must be documented in the mapred-defaults.xml and also on forrest documentation

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