What is clustering in Node.js, and why is it useful?
What is clustering in Node.js, and why is it useful?
24429-Sep-2023
Updated on 04-Oct-2023
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What is clustering in Node.js, and why is it useful?
Aryan Kumar
04-Oct-2023In Node.js, clustering refers to a technique that allows you to create multiple instances (or child processes) of your Node.js application to take advantage of the multi-core processors commonly found in modern servers and computers. Each of these instances, known as workers, runs a copy of your Node.js application code independently. Here's a human-readable explanation of clustering in Node.js and why it's useful:
Clustering in Node.js: Imagine you have a powerful computer with multiple processor cores, and you want to run a Node.js application on it. By default, Node.js runs your application in a single thread, utilizing only one core. This means that even though your computer has multiple cores, your Node.js application can't fully utilize the available processing power.
Why Clustering is Useful:
To implement clustering in Node.js, you can use the built-in cluster module, which simplifies the creation and management of worker processes. By using clustering, you can make the most of your hardware resources, enhance your application's performance, and ensure its availability even under high loads.