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https://issues.apache.org/jira/browse/YARN-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15155388#comment-15155388
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Tsuyoshi Ozawa commented on YARN-2225:
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It's a bit too aggressive to disable vmem-check as discussed on this issue
since some user enables vmem-check.
IMHO, I prefer to make the default value of the vmem ratio larger. How about
closing this issue and doing it on another jira(or, moving HADOOP-11364 to YARN
issue) since the addressing problem is different from this issue?
> 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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