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https://issues.apache.org/jira/browse/YARN-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757925#comment-13757925
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Srimanth Gunturi commented on YARN-1001:
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Ambari's primary use-case is to show in YARN UI the app-type/state distribution
as a time-series graph. For this we would make periodic calls to
{{/ws/v1/cluster/appscount}}. Apart from that we need similar information for
MR2 UI, where a call to {{/ws/v1/cluster/appscount?types=mapreduce}} would be
made.
For now having these calls should suffice.
I am hoping that these calls include both the current/real-time app-type
counts, as well as historical information (atleast until last RM restart)?
> YARN should provide per application-type and state statistics
> -------------------------------------------------------------
>
> Key: YARN-1001
> URL: https://issues.apache.org/jira/browse/YARN-1001
> Project: Hadoop YARN
> Issue Type: Task
> Components: api
> Affects Versions: 2.1.0-beta
> Reporter: Srimanth Gunturi
> Assignee: Zhijie Shen
> Attachments: YARN-1001.1.patch
>
>
> In Ambari we plan to show for MR2 the number of applications finished,
> running, waiting, etc. It would be efficient if YARN could provide per
> application-type and state aggregated counts.
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