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https://issues.apache.org/jira/browse/YARN-8009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16390116#comment-16390116
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Miklos Szegedi commented on YARN-8009:
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Thank you for raising this [[email protected]]. Normally the
Application Master has the ability to specify the amount of containers. It can
then provide an option to the user. See the the distributed shell example for
details:
https://github.com/apache/hadoop/blob/037d7834833df2d1e60f5015b60d42550b1ddce6/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/src/main/java/org/apache/hadoop/yarn/applications/distributedshell/ApplicationMaster.java#L459
> YARN limit number of simultaneously running containers in the application
> level
> -------------------------------------------------------------------------------
>
> Key: YARN-8009
> URL: https://issues.apache.org/jira/browse/YARN-8009
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Affects Versions: 3.0.0
> Reporter: Sachin Jose
> Priority: Minor
> Labels: features
>
> It would be really useful if the user can specify maximum containers can be
> running simultaneously in the application level. Most of the long running
> YARN application can be benefited out of it. At this moment, the only
> available option to restrict resource over usage of long running is in the
> YARN resource manager queue level.
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