[jira] [Created] (YARN-11965) Support partition-aware resource metrics in RM cluster metrics REST API

["Chenyu Zheng (Jira)" <ji...@apache.org>]

Chenyu Zheng created YARN-11965:
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             Summary: Support partition-aware resource metrics in RM cluster metrics REST API
                 Key: YARN-11965
                 URL: https://issues.apache.org/jira/browse/YARN-11965
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Chenyu Zheng
            Assignee: Chenyu Zheng


When node labels are enabled, different labels represent separate resource pools. However, the RM REST API `/ws/v1/cluster/metrics` currently exposes fields such as totalMB and totalVirtualCores based on the default partition only. As a result, resources from non-default partitions are not visible to external resource management systems, which may incorrectly determine that the cluster has no available capacity after new labels are added.

The API should expose cluster resource metrics across all partitions and provide partition-level metrics so clients can distinguish capacity and usage by node label.



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