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Posted to yarn-issues@hadoop.apache.org by "dengkai (JIRA)" <ji...@apache.org> on 2017/10/09 02:27:00 UTC
[jira] [Commented] (YARN-6384) Add configuratin to set max cpu
usage when strict-resource-usage is false with cgroups
[ https://issues.apache.org/jira/browse/YARN-6384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16196441#comment-16196441 ]
dengkai commented on YARN-6384:
-------------------------------
Sorry, I was confused. So a factor should be added for strict mode? But how about make some limits for non-strict mode, which may be acquire unexpected cpu resource.
> Add configuratin to set max cpu usage when strict-resource-usage is false with cgroups
> --------------------------------------------------------------------------------------
>
> Key: YARN-6384
> URL: https://issues.apache.org/jira/browse/YARN-6384
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: dengkai
> Attachments: YARN-6384-0.patch, YARN-6384-1.patch, YARN-6384-2.patch
>
>
> When using cgroups on yarn, if yarn.nodemanager.linux-container-executor.cgroups.strict-resource-usage is false, user may get very more cpu time than expected based on the vcores. There should be a upper limit even resource-usage is not strict, just like a percentage which user can get more than promised by vcores. I think it's important in a shared cluster.
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