Horizontal Scaling Strategies
Understand how to distribute WebSocket connections across multiple server instances for improved performance.
Why Scale WebSockets?
Imagine your awesome app suddenly gets super popular! Thousands, even millions, of users want to connect simultaneously.
A single server can only handle so many active WebSocket connections before it gets overwhelmed. It's like a single lane highway trying to handle rush hour traffic!
To keep your app fast and reliable, we need strategies to handle this high traffic.
Grow Up or Grow Out?
When a single server isn't enough, you have two main options to scale:
- Vertical Scaling: Upgrade your existing server with more CPU, RAM, or faster storage. Think of it as making your single highway lane wider.
- Horizontal Scaling: Add more servers to share the load. This is like adding more lanes to your highway, or even building parallel highways!
For WebSockets, horizontal scaling is often preferred. It offers better resilience and flexibility.
All lessons in this course
- Horizontal Scaling Strategies
- Load Balancing WebSockets
- Distributed State Management
- Pub/Sub Backplane with Redis