What Does Node.js Cluster Do?
Node.js processes runs on a single process, which means it does not take advantage from multi-core systems by default. If you have an 8 core CPU and run a Node.js application on it, will run as single process on single core by wasting the rest of CPU’s. To utilize all CPU core on the system, Node.js offers cluster module that contains a set of functions and properties that help us to create programs that uses all the CPU core.
Node.js cluster module provides a ability for scaling up the applications by splitting a single process into multiple processes or workers, in Node.js terminology. The cluster module allows you to create child processes (workers), which share all the server ports with the main Node process (master).
Integration of Node.js Cluster With Express
Express is a web application framework that provides a robust set of features for web and mobile applications. Now, We are going to integrate Node.js cluster With Express
Documentation of cluster functions and events are explained on the official website you can go through it for the use case of each functions.
What Node.js Cluster Can Do ?
- Improves the Performance of the Node.Js Application
- Zero Downtime Server
- Communication Between Master and Workers Process
- CPU Utilization
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