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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4288) ClusterStatus.getMapTasks() and ClusterStatus.getReduceTasks() is giving one when no job is running
Date Mon, 18 Jun 2012 18:49:43 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13396130#comment-13396130
] 

Karthik Kambatla commented on MAPREDUCE-4288:
---------------------------------------------

In YARN, the ClusterMetrics should only correspond to numNodeManagers, numActiveJobs(), numActiveContainers(),
availableResources(). Other job/app-specific metrics should move to the corresponding AMs.
JobStatus would be a good place to have these metrics.

Subsequently, JobClient.getClusterStatus() can correspond to the job-specific metrics (would
be a misnomer).

Comments?
                
> ClusterStatus.getMapTasks() and ClusterStatus.getReduceTasks() is giving one when no
job is running
> ---------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4288
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4288
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 2.0.0-alpha
>            Reporter: Nishan Shetty
>            Assignee: Karthik Kambatla
>
> When no job is running in the cluster invoke the ClusterStatus.getMapTasks() and ClusterStatus.getReduceTasks()
API's
> Observed that these API's are returning one instead of zero(as no job is running)

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