MetaFT - a reflective approach to implement replication techniques in CORBA

A model was introduced by J. Fraga (1997) for integrating replication techniques into heterogeneous systems. The model adopts a reflective structure based on the meta-object approach. This model is founded in ORBs that support group communication in heterogeneous environments. The OMG still does not have specifications for fault tolerance. The MetaFT model has great flexibility allowing, for instance, one to modify the coordination protocols according to desired level of fault tolerance, without any implications for the application code. The advantage is that it allows one to use different meta-object protocols to assist different quality of service parameters to fault tolerance. This paper presents our experiences in developing replication techniques following the model using two different CORBA platforms and presents some performance analyses.