hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Miklos Szegedi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6384) Add configuratin to set max cpu usage when strict-resource-usage is false with cgroups
Date Mon, 16 Oct 2017 17:57:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16206295#comment-16206295
] 

Miklos Szegedi commented on YARN-6384:
--------------------------------------

Thank you for the patch [~lolee_k],
DEFAULT_NM_LINUX_CONTAINER_CGROUPS_MAX_RESOURCE_USAGE_PERCENT should be 1.0 by default I think
not to break backward compatibility and issues are easier to debug in a default cluster.
Please fix the outstanding checkstyle issues.
Just a note on the overall design. I think the patch does it correctly, it allows a higher
limit to be set in case of strict mode, not affecting non-strict mode. In a future jira we
may consider mixing the two, allowing weights to be set with a strict limit. However, that
would be a breaking change, since strict and non-strict mode are not distinct anymore.

> 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, YARN-6384-3.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.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org


Mime
View raw message