In-memory caching
The in-memory caching system is designed to increase application performance by holding frequently-requested data in memory, reducing the need for database queries to get that data.
The caching system is optimized for use in a clustered installation, where you set up and configure a separate external cache server. In a single-machine installation, the application uses a local cache in the application's server's process, rather than a cache server.
Note: Your license must support clustering in order for you to use an external cache
server.