The Sterling Selling and Fulfillment Foundation HTTP screens are stateful in the sense that a screen preserves state information for subsequent screens. As a result, you have to set up proxy servers or load-balancers to load-balance HTTP requests with a “sticky” load-balancing policy. This ensures HTTP requests go back to the server that have the session states.
Load-balancing can improve performance for large number of HTTP users because the user population is serviced by multiple application servers that are managed as a cluster. Load-balancing can be implemented with a variety of technologies ranging from the IBM® HTTP Server to hardware-based load balancers.
Sterling Selling and Fulfilment Foundation supports HTTP session replication with WebSphere®. See the application server documentation (info center) for the OS version to set up session replication. Testing has been performed with memory-to-memory replication for peer-to-peer mode. For additional information about system requirements, go to the IBM Support Portal .