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https://issues.apache.org/jira/browse/YARN-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766878#comment-13766878
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Srimanth Gunturi commented on YARN-1001:
----------------------------------------

What we need is a call like {{/appStates?type=mapreduce}}, and that would give 
per-state counts of the various MR apps. It should also include a total count 
of MR apps. 

Something like 
{noformat}
{
  total: 10,
  submitted: 10,
  running: 3,
  pending: 4,
  completed: 2,
  killed: 1,
  failed: 1
}
{noformat}
                
> 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
>            Priority: Blocker
>         Attachments: YARN-1001.1.patch, YARN-1001.2.patch, YARN-1001.3.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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