added timeout for removing the dead loop state

server/model/monitor.js

@@ -359,9 +359,11 @@ class Monitor extends BeanModel {
                         });
                         bean.status = UP;
                     } catch (error) {
+                        if (error.message !== "Timeout") {
                             bean.status = DOWN;
                             bean.msg = error.message;
                         }
+                    }
                 } else {
                     bean.msg = "Unknown Monitor Type";
                     bean.status = PENDING;

server/util-server.js

@@ -131,6 +131,7 @@ exports.mqttAsync = function (hostname, topic, okMessage, options = {}) {
 
         setTimeout(() => {
             client.end();
+            reject("Timeout");
         }, interval * 1000);
 
     });