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From "Thomas Graves (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-443) allow OS scheduling priority of NM to be different than the containers it launches
Date Thu, 07 Mar 2013 15:26:14 GMT

     [ https://issues.apache.org/jira/browse/YARN-443?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Thomas Graves updated YARN-443:

    Attachment: YARN-443.patch

trunk patch.  Note that I have nice -n applying to the winutils.exe call to, but unfortunately
haven't tested it as I don't have a windows box.

Bikas if you have cycles to test I would appreciate it, if not I can remove the windows part
and file a follow on jira.
> allow OS scheduling priority of NM to be different than the containers it launches
> ----------------------------------------------------------------------------------
>                 Key: YARN-443
>                 URL: https://issues.apache.org/jira/browse/YARN-443
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>    Affects Versions: 2.0.3-alpha, 0.23.6
>            Reporter: Thomas Graves
>            Assignee: Thomas Graves
>         Attachments: YARN-443-branch-0.23.patch, YARN-443-branch-0.23.patch, YARN-443-branch-2.patch,
YARN-443.patch, YARN-443.patch, YARN-443.patch
> It would be nice if we could have the nodemanager run at a different OS scheduling priority
than the containers so that you can still communicate with the nodemanager if the containers
out of control.  
> On linux we could launch the nodemanager at a higher priority, but then all the containers
it launches would also be at that higher priority, so we need a way for the container executor
to launch them at a lower priority.
> I'm not sure how this applies to windows if at all.

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