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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