YARN-9316. TestPlacementConstraintsUtil#testInterAppConstraintsByAppID fails intermittently. Contributed by Prabhu Joseph.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/constraint/TestPlacementConstraintsUtil.java

@@ -874,6 +874,8 @@ public class TestPlacementConstraintsUtil {
 
     long ts = System.currentTimeMillis();
     ApplicationId application1 = BuilderUtils.newApplicationId(ts, 123);
+    ApplicationId application2 = BuilderUtils.newApplicationId(ts, 124);
+    ApplicationId application3 = BuilderUtils.newApplicationId(ts, 125);
 
     // Register App1 with anti-affinity constraint map.
     RMNode n0r1 = rmNodes.get(0);
@@ -917,8 +919,6 @@ public class TestPlacementConstraintsUtil {
     srcTags2.add("app2");
     constraintMap.put(srcTags2, constraint2);
 
-    ts = System.currentTimeMillis();
-    ApplicationId application2 = BuilderUtils.newApplicationId(ts, 124);
     pcm.registerApplication(application2, constraintMap);
 
     // Anti-affinity with app1/hbase-m so it should not be able to be placed
@@ -947,10 +947,7 @@ public class TestPlacementConstraintsUtil {
     srcTags3.add("app3");
     constraintMap.put(srcTags3, constraint3);
 
-    ts = System.currentTimeMillis();
-    ApplicationId application3 = BuilderUtils.newApplicationId(ts, 124);
     pcm.registerApplication(application3, constraintMap);
-
     /**
      * Place container:
      *  n0: app1/hbase-m(1), app3/hbase-m