YARN-9722. PlacementRule logs object ID in place of queue name. Contributed by Prabhu Joseph.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/AppNameMappingPlacementRule.java

@@ -190,9 +190,9 @@ public class AppNameMappingPlacementRule extends PlacementRule {
               //queueName will be same as mapped queue name in case of recovery
               || queueName.equals(mappedQueue.getQueue())
               || overrideWithQueueMappings) {
-            LOG.info("Application " + applicationName
-                + " mapping [" + queueName + "] to [" + mappedQueue
-                + "] override " + overrideWithQueueMappings);
+            LOG.info("Application {} mapping [{}] to [{}] override {}",
+                applicationName, queueName, mappedQueue.getQueue(),
+                overrideWithQueueMappings);
             return mappedQueue;
           }
         }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/UserGroupMappingPlacementRule.java

@@ -200,9 +200,9 @@ public class UserGroupMappingPlacementRule extends PlacementRule {
               //queueName will be same as mapped queue name in case of recovery
               || queueName.equals(mappedQueue.getQueue())
               || overrideWithQueueMappings) {
-            LOG.info("Application " + applicationId + " user " + user
-                + " mapping [" + queueName + "] to [" + mappedQueue
-                + "] override " + overrideWithQueueMappings);
+            LOG.info("Application {} user {} mapping [{}] to [{}] override {}",
+                applicationId, user, queueName, mappedQueue.getQueue(),
+                overrideWithQueueMappings);
             return mappedQueue;
           }
         }