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https://issues.apache.org/jira/browse/YARN-5883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15691660#comment-15691660
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Billie Rinaldi commented on YARN-5883:
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+1, the new patch looks good.
> Avoid or eliminate expensive YARN get all applications call
> -----------------------------------------------------------
>
> Key: YARN-5883
> URL: https://issues.apache.org/jira/browse/YARN-5883
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Gour Saha
> Assignee: Gour Saha
> Fix For: yarn-native-services
>
> Attachments: YARN-5883-yarn-native-services.001.patch,
> YARN-5883-yarn-native-services.002.patch
>
>
> YARN _getAllApplications()_ call with no param or with application types
> _getApplications(Set<String> applicationTypes)_ are very costly in a cluster
> with hundreds or thousands of Slider apps running.
> YARN now has the API to filter by application tags - YARN-4491. We should be
> able to use this to avoid these expensive calls.
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