commit 51bd528bd34b6c01d9d1126ffed2fc6cb94604c2
author Akshat Bordia <31816865+akshatb1@users.noreply.github.com> Tue Sep 28 22:21:18 2021 +0530
committer GitHub <noreply@github.com> Tue Sep 28 09:51:18 2021 -0700
tree fa030a9e68f540e5b3e241711745bf1712af8d93
parent f5148ca542108d1e308a89922d765119bfa73ab4

YARN-10957. Using invokeConcurrent Overload with Collection in getClusterMetrics (#3439)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java

diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java
index 391bc1c..3133ad5 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java
@@ -664,11 +664,10 @@
         federationFacade.getSubClusters(true);
     ClientMethod remoteMethod = new ClientMethod("getClusterMetrics",
         new Class[] {GetClusterMetricsRequest.class}, new Object[] {request});
-    ArrayList<SubClusterId> clusterList = new ArrayList<>(subclusters.keySet());
     Map<SubClusterId, GetClusterMetricsResponse> clusterMetrics;
 
     try {
-      clusterMetrics = invokeConcurrent(clusterList, remoteMethod,
+      clusterMetrics = invokeConcurrent(subclusters.keySet(), remoteMethod,
           GetClusterMetricsResponse.class);
 
     } catch (Exception ex) {