Moving try catch inside node loop and adding additional context to fa…

…ilure error. Nodes without data will return 400 errors this change allows other nodes to be collected without issue.

VTMAgent.cs

@@ -120,12 +120,12 @@ private void PollPool()
 
         private void PollNodes()
         {
-            try
-            {
-                Children nodes = VTM.fetchVTMObject<Children>("/api/tm/3.3/status/local_tm/statistics/nodes/node");
+            Children nodes = VTM.fetchVTMObject<Children>("/api/tm/3.3/status/local_tm/statistics/nodes/node");
 
-                foreach (var node in nodes.children)
-                {
+            foreach (var node in nodes.children)
+            {
+                try
+                {                
                     // Setup new EpochProcessors for each Node
                     // Check for existance of first Dictionary Item for the Node
                     if (!processors.ContainsKey("node_" + node.name + "_errors"))
@@ -141,10 +141,10 @@ private void PollNodes()
                     ReportMetric("nodes/" + node.name + "/current_conn", "connections", nodeStats.current_conn);
                     ReportMetric("nodes/" + node.name + "/current_requests", "requests", nodeStats.current_requests);
                 }
-            }
-            catch
-            {
-                log.Error("Unable to fetch Node information from the Virtual Traffic Manager '{0}'", this.name);
+                catch
+                {
+                    log.Error("Unable to fetch Node information from the Virtual Traffic Manager '{0}' for Node: '{1}'", this.name, node.name);
+                }
             }
         }