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https://issues.apache.org/jira/browse/MAPREDUCE-5437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Srimanth Gunturi resolved MAPREDUCE-5437.
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Resolution: Won't Fix
MR2 applications are too split up to have a central place where their metrics
can be gathered. Job history server cannot give real time MR2 metrics. Since
this is long term work, this particular issue is being resolved.
> MR2 specific metrics should be collected
> ----------------------------------------
>
> Key: MAPREDUCE-5437
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5437
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.1.0-beta
> Reporter: Srimanth Gunturi
>
> We have a usecase to show the below information. We can find job count by
> calling the /apps endpoint and filtering by type/state. But we need a way
> (JMX/API) to get the number of map/red tasks that are running/waiting.
> {noformat}
> Total Jobs: x jobs
> Tasks: Maps a running / b waiting
> Tasks: Reduces c running / d waiting
> {noformat}
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