Converged Load Balancing Algorithm for Web Applications

HTTP and HTTPS messages belonging to pure web applications, the converged load balancer uses a sticky round robin algorithm, by default. When a new request is sent to the load balancer, it is forwarded to an application server instance based on a simple round robin scheme. If the request is for a session-based application, it may result in creation of a session. In such a case, response will have sticky information, which is sent back on subsequent messages. Subsequent messages from the same client for the same session-based application are considered assigned or sticky messages and are routed by the load balancer to the same instance if that instance is found to be healthy. Hence, the name sticky round robin. Requests to a non-session-based application and the first request for a session-based application are new requests.