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From "Zhankun Tang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-9464) Support "Pending Resource" metrics in RM's RESTful API
Date Tue, 09 Apr 2019 03:44:00 GMT
Zhankun Tang created YARN-9464:
----------------------------------

             Summary: Support "Pending Resource" metrics in RM's RESTful API
                 Key: YARN-9464
                 URL: https://issues.apache.org/jira/browse/YARN-9464
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Zhankun Tang


Knowing only the "available", "used" resource is not enough for YARN management tools like
auto-scaler. It would be helpful to diagnose the cluster resource utilization if it get "Pending
Resource" from RM RESTful APIs. In a certain extent, it represents how starving the applications
are.

Initially, we can add "pending resource" information in below two RM REST APIs:

 
{code:java}
RMnode:port/ws/v1/cluster/metrics
RMnode:port/ws/v1/cluster/metrics/nodes
{code}
 

 



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