tomscut commented on code in PR #4357:
URL: https://github.com/apache/hadoop/pull/4357#discussion_r884077287


##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSlowPeerTracker.java:
##########
@@ -79,9 +79,12 @@ public void testEmptyReports() {
 
   @Test
   public void testReportsAreRetrieved() {
-    tracker.addReport("node2", "node1", 1.2);
-    tracker.addReport("node3", "node1", 2.1);
-    tracker.addReport("node3", "node2", 1.22);
+    OutlierMetrics outlierMetrics1 = new OutlierMetrics(0.0, 0.0, 0.0, 1.2);

Review Comment:
   Can we not define a variable `outlierMetrics1` here, just to make it a 
little bit cleaner.



##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestSlowPeerTracker.java:
##########
@@ -161,17 +176,28 @@ public void testGetJson() throws IOException {
 
   @Test
   public void testGetJsonSizeIsLimited() throws IOException {
-    tracker.addReport("node1", "node2", 1.634);
-    tracker.addReport("node1", "node3", 2.3566);
-    tracker.addReport("node2", "node3", 3.869);
-    tracker.addReport("node2", "node4", 4.1356);
-    tracker.addReport("node3", "node4", 1.73057);
-    tracker.addReport("node3", "node5", 2.4956730);
-    tracker.addReport("node4", "node6", 3.29847);
-    tracker.addReport("node5", "node6", 4.13444);
-    tracker.addReport("node5", "node7", 5.10845);
-    tracker.addReport("node6", "node8", 2.37464);
-    tracker.addReport("node6", "node7", 1.29475656);
+    OutlierMetrics outlierMetrics1 = new OutlierMetrics(0.0, 0.0, 0.0, 1.634);

Review Comment:
   Same as above.



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