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https://issues.apache.org/jira/browse/YARN-11965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18089261#comment-18089261
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ASF GitHub Bot commented on YARN-11965:
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zhengchenyu commented on PR #8547:
URL: https://github.com/apache/hadoop/pull/8547#issuecomment-4714141971
@K0K0V0K
On a cluster of 10,000+ nodes, having one partition per node is not a
practical use case, as it would significantly increase the operational burden.
Generally, there are only a few NodeLabels, and each partition only has 14
fields, so I don't think it will create a significant burden.
> 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
> Priority: Major
> Labels: pull-request-available
>
> 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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