YARN-4613. Fix test failure in TestClientRMService#testGetClusterNodes. (Takashi Ohnishi via rohithsharmaks)

(cherry picked from commit 10dc2c049304671f0ed9fd737a30cd843427b53e)

hadoop-yarn-project/CHANGES.txt

@@ -94,6 +94,9 @@ Release 2.9.0 - UNRELEASED
     YARN-4574. Fix random failure in TestAMRMClientOnRMRestart.
     (Takashi Ohnishi via rohithsharmaks)
 
+    YARN-4613. Fix test failure in TestClientRMService#testGetClusterNodes.
+    (Takashi Ohnishi via rohithsharmaks)
+
 Release 2.8.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestClientRMService.java

@@ -209,6 +209,7 @@ public class TestClientRMService {
 
     // Now make the node unhealthy.
     node.nodeHeartbeat(false);
+    rm.NMwaitForState(node.getNodeId(), NodeState.UNHEALTHY);
 
     // Call again
     nodeReports = client.getClusterNodes(request).getNodeReports();