What are the existing load balancing algorithms?

Load balancing algorithms:

• Round Robin: Distributes requests to servers in a circular manner. Simple, but does not consider server performance.
• Weighted Round Robin: Similar to Round Robin, but takes into account assigned server weights. Servers with higher weights receive more requests.
• Least Connection: Sends requests to the server with the fewest active connections. Effective under uneven load.
• Least Response Time: Directs requests to the server with the shortest response time. Considers actual performance.
• IP Hash: Uses a hash of the client's IP address to bind to a specific server. Ensures session stickiness.
• Least Bandwidth: Chooses the server with the least amount of traffic at the moment.
• Source IP Affinity (Sticky Sessions): Sends subsequent requests from the same client to the same server. Important for maintaining session state.
• Feature-Based Dispatching: Routes requests based on specific request characteristics (e.g., URL, request type).

The choice of algorithm depends on traffic characteristics, availability requirements, load distribution, and server infrastructure features.