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Posted to yarn-issues@hadoop.apache.org by "Zhankun Tang (JIRA)" <ji...@apache.org> on 2018/10/18 15:59:00 UTC
[jira] [Commented] (YARN-8896) Limit the maximum number of
container assignments per heartbeat
[ https://issues.apache.org/jira/browse/YARN-8896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655478#comment-16655478 ]
Zhankun Tang commented on YARN-8896:
------------------------------------
[~leftnoteasy] , change the default max assign value from -1 to 100. Please review.
> Limit the maximum number of container assignments per heartbeat
> ---------------------------------------------------------------
>
> Key: YARN-8896
> URL: https://issues.apache.org/jira/browse/YARN-8896
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.9.0, 3.0.0
> Reporter: Weiwei Yang
> Assignee: Zhankun Tang
> Priority: Major
> Attachments: YARN-8896-trunk.001.patch
>
>
> YARN-4161 adds a configuration \{{yarn.scheduler.capacity.per-node-heartbeat.maximum-container-assignments}} to control max number of container assignments per heartbeat, however the default value is -1. This could potentially cause the CS gets stuck in the while loop causing issue like YARN-8513. We should change this to a finite number, e.g 100.
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