Load Balancing Guide ⚖️🌐

Distribute Traffic Efficiently

1. What is Load Balancing?

Load balancing distributes incoming traffic across multiple servers to ensure reliability and performance.

2. Why Needed?

- Prevent server overload
- Improve speed
- Ensure high availability

3. Types

Round Robin → Equal distribution
Least Connections → Less busy server
IP Hash → Same user to same server

4. Architecture

User → Load Balancer → Multiple Servers

5. Tools

Nginx
HAProxy
AWS Elastic Load Balancer

6. Nginx Example

upstream backend {
  server server1;
  server server2;
}

7. Benefits

- Scalability
- Reliability
- Performance

8. Real Use Cases