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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (YARN-2225) Turn the virtual memory check to be off by default
Date Fri, 01 May 2015 19:59:06 GMT

     [ https://issues.apache.org/jira/browse/YARN-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhijie Shen resolved YARN-2225.
-------------------------------
    Resolution: Invalid

Close the jira according to the comments so far. Feel free to reopen it if someone has other
thoughts.

> Turn the virtual memory check to be off by default
> --------------------------------------------------
>
>                 Key: YARN-2225
>                 URL: https://issues.apache.org/jira/browse/YARN-2225
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>         Attachments: YARN-2225.patch
>
>
> The virtual memory check may not be the best way to isolate applications. Virtual memory
is not the constrained resource. It would be better if we limit the swapping of the task using
swapiness instead. This patch will turn this DEFAULT_NM_VMEM_CHECK_ENABLED off by default
and let users turn it on if they need to.



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