How to create load balancing servers using Node.js?

Not many people know this, but you cannot handle a huge load of traffic using a single Node.js server. To make your website run smoothly, you will need to add more machines and make your system efficient enough. You will also need to equip a load balancer to share the amount of traffic. 

If you are wondering how to do it, we are here to help you create load balancing servers using Node.js. But first, let’s understand what a load balancer is!

What is load balancing? 

Load balancers play a pivotal role in improving application availability. Moreover, it safeguards your servers from overloading and ensures that no server is overworked. If these performance bottlenecks create trouble for you, you must use load balancing to create a shared architecture. 

How to establish a load balancing server? 

1.Using Nginx- If your system is required to handle requests from multiple clients and if there is more than one application that your server answers to, then using Nginx as a proxy server can help you largely. Nginx distributes and handles requests effectively and sits at the start of the server pool. 

2.Using Cluster Module- Not many people know this, but Node.js comes packed with a module called cluster module. It benefits the machine due to its multi-core system. The biggest benefit is that by using the cluster module, you can easily set up Node.js instances in each system core. So if you wish to make the best of your system, using this module can be of great help. 

3.Using Express Web server- Using Express Web server comes loaded with numerous benefits. So if you use Node.js, feel free to use the Express Web server for load balancing. 

4. Using PaaS or IaaS- For balancing load in an easy way you can also use the App engine available on the Google Cloud Platform. It will segregate the traffic on multiple instances. You can also use AWS EC2, which offers a service called application load balancing. It also divides traffic on multiple AWS EC2 instances. 

5.Using HaProxy- HaProxy stands for High Availability Proxy and as the name suggests, it is an open-source Proxy Server. It is designed to load balance single or multiple machines. Moreover, it comes with the extensive features of Nginx. 

You can also go for several other methods that are available for load balancing using Node.js.