Description: Session persistence is a feature that ensures that a user’s requests are consistently directed to the same server during a session. This is crucial in web applications where the user’s state must be maintained across multiple interactions. Without session persistence, a load balancer might direct requests from the same user to different servers, which could result in an inconsistent user experience and loss of temporary data, such as shopping carts or login sessions. Session persistence is achieved through various methods, such as cookies, IP addresses, or session tokens, which allow the load balancer to identify and redirect the same user’s requests to the server handling their session. This feature is especially relevant in high availability and scalability environments, where multiple servers are in use to handle large volumes of traffic. By ensuring that a user’s requests are directed to the same server, system efficiency is improved, and the user experience is optimized, which is essential for critical applications and online services.
