goiri commented on a change in pull request #3971:
URL: https://github.com/apache/hadoop/pull/3971#discussion_r802909602



##########
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterNamenodeHeartbeat.java
##########
@@ -211,6 +216,54 @@ public void testHearbeat() throws InterruptedException, 
IOException {
     assertEquals(NAMENODES[1], standby.getNamenodeId());
   }
 
+  @Test
+  public void testNamenodeHeartbeatServiceHAServiceProtocolProxy(){
+    testNamenodeHeartbeatServiceHAServiceProtocol(
+            "test-ns", "nn", 1000, -1, -1, 1003,

Review comment:
       The spacing doesn't look correct.

##########
File path: 
hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterNamenodeHeartbeat.java
##########
@@ -50,13 +50,18 @@
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.TestName;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Test the service that heartbeats the state of the namenodes to the State
  * Store.
  */
 public class TestRouterNamenodeHeartbeat {
 
+  private static final Logger LOG =
+          LoggerFactory.getLogger(TestRouterNamenodeHeartbeat.class);

Review comment:
       The space doesn't look correct.




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