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From "Anubhav Dhoot (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2225) Turn the virtual memory check to be off by default
Date Fri, 27 Jun 2014 21:59:24 GMT

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

Anubhav Dhoot updated YARN-2225:
--------------------------------

    Description: 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.  (was: 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 off by default and let users turn it on if they need to.)

> 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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