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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4439) Cleanup memory related resource management
Date Fri, 17 Oct 2008 16:16:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640560#action_12640560
] 

Hemanth Yamijala commented on HADOOP-4439:
------------------------------------------

One other proposal was to change the max memory specification to be a percentage of the physical
RAM rather than an absolute value. In interest of time (as this is a blocker for 0.19), I
decided to leave this suggestion out. As the configuration is not exposed until HADOOP-4035,
we can change it as part of that patch. In fact, the current configuration can be supported
in a backwards compatible model as well, if we want.

> Cleanup memory related resource management
> ------------------------------------------
>
>                 Key: HADOOP-4439
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4439
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Hemanth Yamijala
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-4439.patch
>
>
> HADOOP-3759 and HADOOP-3581 introduced memory based resource management. This JIRA is
to cleanup certain aspects of the two issues that came up while doing HADOOP-4035, which is
filed to support memory based scheduling 

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