Ehcache and Grails
Grails 1.2RC1 and higher use Ehcache as the default Hibernate second level cache. However earlier versions of Grails ship with the Ehcache library and are very simple to enable.
The following steps show how to configure Grails to use Ehcache. For 1.2RC1 and higher some of these steps are already done for you. http://ehcache.org/documentation/grails.html