Revert "YARN-9729. [UI2] Fix error message for logs without ATSv2. Contributed by Zoltan Siegl."

This reverts commit 50cec5a704.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/controllers/yarn-app/logs.js

@@ -263,12 +263,5 @@ export default Ember.Controller.extend({
   isLogAggregationNotSucceeded: Ember.computed("model.app", function() {
     const logAggregationStatus = this.get("model.app.logAggregationStatus");
     return logAggregationStatus !== "SUCCEEDED";
-  }),
-
-  isTimelineUnHealthy: function() {
-      if (this.model && this.model.timelineHealth) {
-        return this.model.timelineHealth.get('isTimelineUnHealthy');
-      }
-      return true;
-    }.property('model.timelineHealth')
+  })
 });

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/routes/yarn-app/logs.js

@@ -31,10 +31,7 @@ export default AbstractRoute.extend(AppAttemptMixin, {
       attempts: this.fetchAttemptListFromRMorATS(app_id, this.store).catch(function() {
         return [];
       }),
-      app: this.fetchAppInfoFromRMorATS(app_id, this.store),
-      timelineHealth: this.store.queryRecord('timeline-health', {}).catch(function() {
-        return null;
-      })
+      app: this.fetchAppInfoFromRMorATS(app_id, this.store)
     });
   },
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/src/main/webapp/app/templates/yarn-app/logs.hbs

@@ -32,14 +32,6 @@
             <img src="assets/images/spinner.gif" alt="Loading...">
           </div>
         {{/if}}
-        {{#if isTimelineUnHealthy}}
-            <div class="row panel-heading">
-                <div class="col-md-2"></div>
-                <div class="col-md-8 alert alert-warning glyphicon glyphicon-warning-sign text-center">
-                    <span>Logs are unavailable because Application Timeline Service seems unhealthy.</span>
-                </div>
-            </div>
-        {{else}}
         {{#if attemptList}}
           <div class="row">
             <div class="col-md-6">
@@ -78,7 +70,6 @@
             <h4 class="text-center">No data available!</h4>
           </div>
         {{/if}}
-        {{/if}}
       </div>
     </div>
   </div>