Popular Load-Balancing Articles

Production load balancing is not simply about distributing requests across several servers. A reliable traffic layer must continuously decide where traffic can safely go, how failures affect routing, how capacity changes, and how application instances enter and leave production .

Load balancers normally distribute requests across multiple interchangeable application instances. This works best when any healthy instance can process any request. Problems appear when an application stores user-specific state locally and later requests must return to the same server.