11/5/2023 0 Comments Pm2 monitHowever, I’m rather lazy, and I like Docker a lot. It’s a configuration file for collecting metrics from monitored targets by scraping metrics HTTP endpoints on these targets. Then you start it by running the executable file but before running this command you need to create a prometheus.yml file. To start monitoring Node.js with Prometheus, you need to download the latest release and install it. It’s also a graduated member project of the Cloud Native Computing Foundation, alongside projects like Kubernetes and Fluentd. All components are available under the Apache 2 License on GitHub. Prometheus is 100% open source and community-driven. It’s the most notable and famous open-source monitoring tool you can use today. Unless you’re living under a rock, you must have heard of Prometheus. Once you run your server go to the /status route to monitor your Node.js metrics. app.use(require('express-status-monitor')()) $ npm install express-status-monitorĪfter you have the module installed, you need to add it before any other middleware or router. Installing the tool from npm is as simple as this. It exposes a /status route that reports real-time server metrics with the help of Socket.io and Chart.js. Express Status Monitor is an incredibly simple, self-hosted module, you add to your Express server. Pretty cool for an open-source tool.Įxpress.js is the de-facto framework of choice for Node.js developers. Apart from that, you have access to Flame Graphs. It lets you generate Node Reports and Heap Snapshots directly from the monitoring dashboard. This Node.js monitoring tool doesn’t only display metrics. You’ll now have a new server route /appmetrics-dash where you can see a plethora of useful metrics. Everything you need to do in order to get a dashboard for all HTTP servers created by your application, is add this snippet in your app.js file, or whatever you call your main source file. $ npm install appmetrics-dashĪppmetrics provides a very easy-to-use web-based monitoring dashboard. You install the module from npm by running the following command in your terminal. It’s a simple module you install and require at the top of your main Node.js source file. Node Application Metrics Dashboard shows the performance metrics of your running Node.js application. They may not have full-blown features like Sematext Node.js monitoring integration or Datadog, but keep in mind they’re open-source products, and can hold their own just fine. In this article, I’ll explain how to add monitoring to your Node.js application with different open-source tools. I also explained bad practices in Node.js you should avoid, such as blocking the thread and creating memory leaks, but also a few neat tricks you can use to boost the performance of your application, like using the cluster module to create worker processes and forking long-running processes to run separately from the main thread. In Part 1, Node.js key metrics to monitor, we talked about key Node.js metrics you should monitor in order to understand the health of your application and server. Performant applications need to do three things well. Want to know mine? High performance with no downtime. What’s the fanciest, most amazing, and sexy feature you can add to your Node.js application? What is the most important feature your Node.js application can have? Do you think it’s having fancy fuzzy logic for your full-text search, or maybe using sockets for real-time chats? You tell me.
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