YARN-6631. Refactor loader.js in new Yarn UI. Contributed by Akhil P B.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/initializers/loader.js

@@ -20,25 +20,27 @@
 
 import Ember from 'ember';
 
-function getTimeLineURL() {
-  return '/conf?name=yarn.timeline-service.webapp.address';
+function getTimeLineURL(rmhost) {
+  var url = window.location.protocol + '//' +
+    (ENV.hosts.localBaseAddress? ENV.hosts.localBaseAddress + '/' : '') + rmhost;
+
+  url += '/conf?name=yarn.timeline-service.webapp.address';
+  Ember.Logger.log("Get Timeline Address URL: " + url);
+  return url;
 }
 
 function updateConfigs(application) {
   var hostname = window.location.hostname;
-  var rmhost = hostname +
-    (window.location.port ? ':' + window.location.port: '');
-
-  Ember.Logger.log("RM Address:" + rmhost);
+  var rmhost = hostname + (window.location.port ? ':' + window.location.port: '');
 
   if(!ENV.hosts.rmWebAddress) {
-    ENV = {
-       hosts: {
-          rmWebAddress: rmhost,
-        },
-    };
+    ENV.hosts.rmWebAddress = rmhost;
+  } else {
+    rmhost = ENV.hosts.rmWebAddress;
   }
 
+  Ember.Logger.log("RM Address: " + rmhost);
+
   if(!ENV.hosts.timelineWebAddress) {
     var timelinehost = "";
     $.ajax({
@@ -46,7 +48,7 @@ function updateConfigs(application) {
       dataType: 'json',
       async: true,
       context: this,
-      url: getTimeLineURL(),
+      url: getTimeLineURL(rmhost),
       success: function(data) {
         timelinehost = data.property.value;
         ENV.hosts.timelineWebAddress = timelinehost;
@@ -54,24 +56,18 @@ function updateConfigs(application) {
         var address = timelinehost.split(":")[0];
         var port = timelinehost.split(":")[1];
 
-        Ember.Logger.log("Timeline Address from RM:" + address + ":" + port);
+        Ember.Logger.log("Timeline Address from RM: " + timelinehost);
 
         if(address === "0.0.0.0" || address === "localhost") {
           var updatedAddress =  hostname + ":" + port;
-
-          /* Timeline v2 is not supporting CORS, so make as default*/
-          ENV = {
-             hosts: {
-                rmWebAddress: rmhost,
-                timelineWebAddress: updatedAddress,
-              },
-          };
-          Ember.Logger.log("Timeline Updated Address:" + updatedAddress);
+          ENV.hosts.timelineWebAddress = updatedAddress;
+          Ember.Logger.log("Timeline Updated Address: " + updatedAddress);
         }
         application.advanceReadiness();
-      },
+      }
     });
   } else {
+    Ember.Logger.log("Timeline Address: " + ENV.hosts.timelineWebAddress);
     application.advanceReadiness();
   }
 }