[jira] [Created] (YARN-6532) Allocated container metrics per applciation should be exposed using Yarn & ATS rest APIs

["Ravi Teja Chilukuri (JIRA)" <ji...@apache.org>]

Ravi Teja Chilukuri created YARN-6532:
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             Summary: Allocated container metrics per applciation 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


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, where there container re-use. 



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