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https://issues.apache.org/jira/browse/YARN-11965?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18089294#comment-18089294
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ASF GitHub Bot commented on YARN-11965:
---------------------------------------
zhengchenyu commented on code in PR #8547:
URL: https://github.com/apache/hadoop/pull/8547#discussion_r3418533730
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/QueueMetrics.java:
##########
@@ -1275,6 +1275,18 @@ public int getReservedVirtualCores() {
public int getReservedContainers() {
return reservedContainers.value();
}
+
+ public int getAllocatedContainers(String partition) {
+ return getPartitionMetrics(partition).getAllocatedContainers();
+ }
+
+ public int getPendingContainers(String partition) {
+ return getPartitionMetrics(partition).getPendingContainers();
+ }
+
+ public int getReservedContainers(String partition) {
+ return getPartitionMetrics(partition).getReservedContainers();
+ }
Review Comment:
This is a good suggestion to avoid creating partition metrics unnecessarily.
I will fix it.
> 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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