Multiple monitoring instances?

carl-berg · November 4, 2025, 1:48pm

Is it possible to specify multiple monitoring instances in service pulse? The app.configuration.js seem to indicate it is possible, since it is an array, however only the first one shows up in the service pulse ui?

We currently have a setup with two transports: msmq and sql and a single service-control and service-control.audit using the sql transport and using a bridge endpoint to bridge heartbeats and audits from msmq to sql. This however does not seem to work for monitoring messages because the monitoring instance keeps warning about tables missing from endpoints on the “other side”.

Is it possible to handle use multiple monitoring instances in a single servicepulse instance?

Hazel_Bohon · November 6, 2025, 9:04pm

Hi Carl,

Thank you for reaching out! Right now, ServicePulse only supports a single monitoring instance. The app.constants.js file includes a monitoring_instances array property as a placeholder in case release a version of ServicePulse which supports multiple monitoring instances.

As you observed, if you specify the monitoring_instances config variable with multiple instances, ServicePulse will only load the first monitoring URL from the array.

github.com/Particular/ServicePulse

src/Frontend/src/stores/ServiceControlStore.ts

1696cd42f


      
            }
          
            if (mu) {
              monitoringUrl.value = mu.value;
              window.localStorage.setItem("mu", monitoringUrl.value);
              console.debug(`Monitoring Url found in QS and stored in local storage: ${monitoringUrl.value}`);
            } else if (window.localStorage.getItem("mu")) {
              monitoringUrl.value = window.localStorage.getItem("mu");
              console.debug(`Monitoring Url, not in QS, found in local storage: ${monitoringUrl.value}`);
            } else if (window.defaultConfig && window.defaultConfig.monitoring_urls && window.defaultConfig.monitoring_urls.length) {
              monitoringUrl.value = window.defaultConfig.monitoring_urls[0];
              console.debug(`setting Monitoring Url to its default value: ${window.defaultConfig.monitoring_urls[0]}`);
            } else {
              console.warn("Monitoring Url is not defined.");
            }
          }
          
          async function fetchFromServiceControl(suffix: string, options?: { cache?: RequestCache }) {
            const requestOptions: RequestInit = {
              method: "GET",
              cache: options?.cache ?? "default", // Default  if not specified