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https://issues.apache.org/jira/browse/YARN-6532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15986268#comment-15986268
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Ravi Teja Chilukuri commented on YARN-6532:
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[~rohithsharma] , I wanted to get the total allocated containers of a
application mainly for analysing the jobs, mainly for Tez.
Currently for MR, we can approximately get the containers using maps+reduces
count, but for tez there is no mechanism like that.
> Allocated container metrics per application should be exposed using Yarn &
> ATS rest APIs
> ----------------------------------------------------------------------------------------
>
> Key: YARN-6532
> URL: https://issues.apache.org/jira/browse/YARN-6532
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: ATSv2, resourcemanager, restapi
> Reporter: Ravi Teja Chilukuri
> Priority: Minor
>
> Currently *allocatedMB* and *allocatedVCores* are being exposed by the RM and
> ATS rest APIs.
> But we don't have the allocatedContainers exposed per application.
> This metric can be exposed as a additional param in the existing rest APIs.
> *RM:* http://<rm http address:port>/ws/v1/cluster/apps/{appid}
> *ATS:* http(s)://<timeline server http(s)
> address:port>/ws/v1/applicationhistory/apps/{appid}
> This would be essential for application types like TEZ which have container
> re-use.
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