Database caching ensures that information cached on one Studio instance is available to the others.
Studio uses Ehcache (www.ehcache.org), which uses RMI (Remote Method Invocation) multicast to notify each instance when the cache has been updated.
Database caching for Studio is enabled by default. The default configuration should work in most cases, but you can modify it, if needed. You may also want to disable caching entirely, as it isn't suitable for all environments. See the following sections for more information.