What load balancing algorithms do you know?

Main load balancing algorithms:

• Round Robin — evenly distributes requests to servers in turn.
• Least Connections — directs requests to the server with the fewest active connections.
• IP Hash — selects a server based on the client's IP hash, ensuring session persistence on the same server.
• Weighted Round Robin — like Round Robin but considers server weights (capacity).
• Weighted Least Connections — takes into account both weight and number of connections.
• Random — randomly selects a server.

The choice of algorithm depends on session requirements, load, and server characteristics.