How to get applications with states into the cloud? Round-Robin Load-Balancing also with JSF

Java aktuell, December 2021 (Susanne Apel, Christian Fritz), View article, page 26

Can an old application just be lifted into the cloud? Many older JEE applications and frameworks, operated in clusters, naturally assume sticky sessions. In the cloud, you want to scale dynamically and use round-robin load balancing. Often, these don’t match up. Christian Fitz and Susanne Apel demonstrate, using the example of JSF and Apache Ignite, how they navigated this common pitfall, what kinds of challenges arose in both components as well as in their interaction, and how they solved them one after another.