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https://issues.apache.org/jira/browse/YARN-9276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhaohui Xin updated YARN-9276:
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Attachment: (was: image-2019-02-03-14-58-31-246.png)
> Filter non-existent resource requests actively
> ----------------------------------------------
>
> Key: YARN-9276
> URL: https://issues.apache.org/jira/browse/YARN-9276
> Project: Hadoop YARN
> Issue Type: Bug
> Components: RM, scheduler
> Affects Versions: 2.6.0, 2.7.0, 2.8.0, 2.9.0, 3.0.0, 3.1.0
> Reporter: Zhaohui Xin
> Assignee: Zhaohui Xin
> Priority: Major
>
> In some scenarios, applications will request nonexistent resource name in
> this cluster, such as nonexistent hosts or racks.
> Obviously, we should filter or degrade these invaild resource requests
> actively.
> *This is especially effective when HDFS and Yarn are deployed on different
> nodes, and the scheduling throughput of one of our clusters has improved by
> {color:#ff0000}5X{color}.*
>
> !image-2019-02-03-14-58-48-148.png!
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