YARN-8844. TestNMProxy unit test is failing. (Eric Yang via wangda)

Change-Id: I241fa8701b6f1dbcad87fd2e9a429e32e7aa40f5
(cherry picked from commit b3ac8869338faeabedbc27e95e3166c830a9a761)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/TestNMProxy.java

@@ -161,7 +161,7 @@ public class TestNMProxy extends BaseContainerManagerTest {
         IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SOCKET_TIMEOUTS_KEY, 100);
     // connect to some dummy address so that it can trigger
     // connection failure and RPC level retires.
-    newConf.set(YarnConfiguration.NM_ADDRESS, "1234");
+    newConf.set(YarnConfiguration.NM_ADDRESS, "0.0.0.0:1234");
     ContainerManagementProtocol proxy = getNMProxy(newConf);
     try {
       proxy.startContainers(allRequests);