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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2190) Provide a Windows container executor that can limit memory and CPU
Date Wed, 24 Sep 2014 23:31:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14147086#comment-14147086
] 

Varun Vasudev commented on YARN-2190:
-------------------------------------

[~chuanliu] thank you answering my questions. With respect to vcores - please look at [this
comment|https://issues.apache.org/jira/browse/YARN-2440?focusedCommentId=14107057&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14107057].
There are other comments in various JIRAs that reflect the same sentiment. Assuming a 1-1
mapping between vcores and physical cores is not recommended.

> Provide a Windows container executor that can limit memory and CPU
> ------------------------------------------------------------------
>
>                 Key: YARN-2190
>                 URL: https://issues.apache.org/jira/browse/YARN-2190
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: nodemanager
>            Reporter: Chuan Liu
>            Assignee: Chuan Liu
>         Attachments: YARN-2190-prototype.patch, YARN-2190.1.patch, YARN-2190.2.patch,
YARN-2190.3.patch, YARN-2190.4.patch, YARN-2190.5.patch
>
>
> Yarn default container executor on Windows does not set the resource limit on the containers
currently. The memory limit is enforced by a separate monitoring thread. The container implementation
on Windows uses Job Object right now. The latest Windows (8 or later) API allows CPU and memory
limits on the job objects. We want to create a Windows container executor that sets the limits
on job objects thus provides resource enforcement at OS level.
> http://msdn.microsoft.com/en-us/library/windows/desktop/ms686216(v=vs.85).aspx



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