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From "Srimanth Gunturi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1001) YARN should provide per application-type and state statistics
Date Wed, 04 Sep 2013 16:28:52 GMT

    [ https://issues.apache.org/jira/browse/YARN-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13757925#comment-13757925
] 

Srimanth Gunturi commented on YARN-1001:
----------------------------------------

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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