goiri commented on code in PR #4274:
URL: https://github.com/apache/hadoop/pull/4274#discussion_r868256734
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/RouterMetrics.java:
##########
@@ -74,7 +76,9 @@ public final class RouterMetrics {
@Metric("Total number of successful Retrieved getClusterMetrics and "
+ "latency(ms)")
private MutableRate totalSucceededGetClusterMetricsRetrieved;
-
+ @Metric("Total number of successful Retrieved getClusterNodes and "
Review Comment:
I think with the new checkstyle, you could make this one line.
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/RouterYarnClientUtils.java:
##########
@@ -17,17 +17,14 @@
*/
package org.apache.hadoop.yarn.server.router.clientrm;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.Map;
+import java.util.*;
Review Comment:
Avoid messing too much with the imports.
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/RouterYarnClientUtils.java:
##########
@@ -194,4 +191,24 @@ private static boolean mergeUamToReport(String appName,
return !(appName.startsWith(UnmanagedApplicationManager.APP_NAME) ||
appName.startsWith(PARTIAL_REPORT));
}
+
+ /**
+ * Merges a list of GetClusterNodesResponse.
+ *
+ * @param responses a list of GetClusterNodesResponse to merge
+ * @return the merged GetClusterNodesResponse
+ */
+ public static GetClusterNodesResponse mergeClusterNodesResponse(
+ Collection<GetClusterNodesResponse> responses) {
+ GetClusterNodesResponse clusterNodesResponse = Records.newRecord(
+ GetClusterNodesResponse.class);
Review Comment:
Check the checkstyle report from Yetus.
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