It appears that the limitations of Grails object relational mapping (GORM) – only allowing connections to a single datasource – has been resolved with a new plugin from Burt Beckwith. This feature which allows application architects to design systems that can shard data across federated databases has been around for awhile in ActiveRecord – Rails object relational mapping framework. So it is good to see someone has addressed the issue. I hope to try it out soon.