MAPREDUCE-6359. In RM HA setup, Cluster tab links populated with AM hostname instead of RM. Contributed by zhaoyunjiong.

(cherry picked from commit df36ad0a08261b03c250b6f745b27e5f83e4286e)

hadoop-mapreduce-project/CHANGES.txt

@@ -147,6 +147,9 @@ Release 2.8.0 - UNRELEASED
     MAPREDUCE-4750. Enable NNBenchWithoutMR in MapredTestDriver (Liang Xie
     and Jason Lowe via raviprak)
 
+    MAPREDUCE-6359. In RM HA setup, "Cluster" tab links populated with AM 
+    hostname instead of RM. (zhaoyunjiong via junping_du)
+
 Release 2.7.1 - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/webapp/AppController.java

@@ -62,7 +62,7 @@ public class AppController extends Controller implements AMParams {
     set(APP_ID, app.context.getApplicationID().toString());
     set(RM_WEB,
         JOINER.join(MRWebAppUtil.getYARNWebappScheme(),
-            WebAppUtils.getResolvedRMWebAppURLWithoutScheme(conf,
+            WebAppUtils.getResolvedRemoteRMWebAppURLWithoutScheme(conf,
                 MRWebAppUtil.getYARNHttpPolicy())));
   }