Terracotta provides a service called Network Attached Memory for JEE applications. It is similar to a distributed cache, in that it provides object caching and session clustering features. Terracotta sets itself apart from traditional Java distributed caches because of it’s seamless integration with most Java application servers and frameworks, and ability to cache the entire framework and code, as well as provide session clustering and replication features on a level of high-availability that is difficult to attain with such finesse and ease. This article demonstrates some of Terracotta’s session clustering and high availability features using a demo application the Terracotta engineers have created, called the Examinator.
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Terracotta Network Attached Memory for Web App Session Clustering and Replication | Heykuki News