Load Balancing Your Node.js Apps

Imagine a popular restaurant with only one chef. If too many orders come in, customers wait, or leave! Load balancing is like adding more chefs and a smart manager to distribute orders efficiently.

In web development, a load balancer distributes incoming network traffic across multiple servers. This ensures no single server becomes a bottleneck, keeping your application responsive.

Node.js is known for its non-blocking I/O and efficiency. However, a single Node.js process runs on a single CPU core. To handle more users or heavy loads, you need:

• Scaling: Run multiple Node.js instances to utilize more CPU cores and memory.
• High Availability: If one instance fails, others can take over, preventing downtime.

Load balancers are crucial for achieving both scalability and high availability for your Node.js applications.