Caching and stickiness

PolicyCenter is fully leveraging the caching mechanism if a user returns to the same server instance across different HTTP requests. In a clustered environment, the load balancer must direct requests to the same PolicyCenter server upon consecutive interactions. This mechanism, referred to as stickiness, enables a true horizontal scalability solution. For more information on load balancing options for PolicyCenter, consult Guidewire Services.

Each server manages its own cache. It is possible for the same object to live in the cache of two or more servers at the same time. Some object sets, such as users, likely live in the global cache of all servers in a cluster.