Understanding Node.js Cluster: The Core Concepts

Node.js's Cluster module enables multi-process applications, addressing its single-threaded nature. It uses a master-worker architecture, where the master creates child processes and manages inter-process communication. Load balancing is achieved using a round-robin algorithm, distributing requests among workers. The master listens on the port and forwards connections to workers, preventing competition. This approach allows Node.js applications to utilize multiple CPU cores, improving performance and scalability.