There are several common load balancing algorithms used in architecturally resilient systems, including:
1. Round-robin: In this algorithm, requests are distributed equally across all available servers in a circular pattern. It is simple and easy to implement, but may not be optimal in situations where some servers have more capacity than others.
2. Weighted round-robin: This is similar to round-robin, but assigns weights to each server based on their capacity. This ensures that servers with higher capacity receive a larger share of requests.
3. Least connections: This algorithm assigns requests to the server with the fewest active connections. This prevents overloaded servers from receiving further requests and distributes the load evenly.
4. IP hash: In this algorithm, requests are assigned to a server based on the hash value of the client's IP address. This ensures that subsequent requests from the same client are assigned to the same server, improving cache efficiency.
5. Random selection: This algorithm randomly selects a server for each request. While simple and easy to implement, this may not distribute the load evenly in the long run.
6. Least response time: This algorithm assigns requests to the server with the fastest response time, ensuring that users receive the best possible experience. However, this requires constant monitoring and may not be suitable for larger systems.
Publication date: