Load Balancers and Caching
Learn how load balancers distribute traffic and how caching improves performance and reduces database load.
What are Load Balancers?
Imagine a popular website with millions of users. If all users tried to access one server, it would quickly get overwhelmed!
A Load Balancer acts like a traffic cop, sitting in front of your servers. It distributes incoming network traffic across multiple backend servers or resources.
Why Use Load Balancers?
Load balancers are essential for modern applications because they provide several key benefits:
- Improved Performance: Prevents any single server from becoming a bottleneck by spreading the load.
- High Availability: If one server fails, the load balancer automatically directs traffic to healthy servers, ensuring continuous service.
- Scalability: Easily add or remove servers from your pool without affecting users, allowing your system to grow.
All lessons in this course
- Clients, Servers, and APIs
- Databases and Storage Options
- Load Balancers and Caching
- Message Queues and Asynchronous Processing