Least Connections
Least Connections is a load balancing algorithm that distributes incoming network traffic or requests to the server with the fewest active connections at any given time. It is commonly used in web servers, application delivery controllers, and proxy servers to optimize resource utilization and improve performance by preventing server overload. This method helps ensure a more even distribution of load compared to simple round-robin approaches.
Developers should learn and use Least Connections when building scalable systems that require efficient load distribution, such as high-traffic web applications, microservices architectures, or API gateways. It is particularly useful in scenarios where server capacities vary or connections have different durations, as it dynamically adapts to current server loads to minimize response times and avoid bottlenecks.