Added error message if ceilometer fail
diff --git a/views/ngXosViews/diagnostic/src/js/logicTopology.js b/views/ngXosViews/diagnostic/src/js/logicTopology.js
index f88b80a..5ab5d0f 100644
--- a/views/ngXosViews/diagnostic/src/js/logicTopology.js
+++ b/views/ngXosViews/diagnostic/src/js/logicTopology.js
@@ -17,6 +17,7 @@
         var svg;
         this.selectedInstances = [];
         this.hideInstanceStats = true;
+        var _this = this;
 
         const handleSvg = (el) => {
 
@@ -61,6 +62,12 @@
           .then((instances) => {
             LogicTopologyHelper.updateTree(svg);
           })
+          .catch(e => {
+            _this.error = 'Service statistics are not available at this time. Please try again later.'
+            $timeout(() => {
+              _this.error = null;
+            }, 2000);
+          })
         });
 
         d3.select(window)
diff --git a/views/ngXosViews/diagnostic/src/js/nodeDrawer.js b/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
index 6828abb..514f114 100644
--- a/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
+++ b/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
@@ -374,10 +374,10 @@
 
       statsContainer.append('line')
         .attr({
-          x1: d => lines[d.humanReadableName].x1 || lines['mysite_vsg-1'],
-          y1: d => lines[d.humanReadableName].y1 || lines['mysite_vsg-1'],
-          x2: d => lines[d.humanReadableName].x2 || lines['mysite_vsg-1'],
-          y2: d => lines[d.humanReadableName].y2 || lines['mysite_vsg-1'],
+          x1: d => lines[d.humanReadableName].x1 || lines['mysite_vsg-1'].x1,
+          y1: d => lines[d.humanReadableName].y1 || lines['mysite_vsg-1'].y1,
+          x2: d => lines[d.humanReadableName].x2 || lines['mysite_vsg-1'].x2,
+          y2: d => lines[d.humanReadableName].y2 || lines['mysite_vsg-1'].y2,
           stroke: 'black',
           opacity: 0
         })