MAPE-K as a Service-oriented Architecture

The reflective middlewares have been used as a powerful tool to cope with inherent heterogeneous nature of distributed systems, in order to give them greater adaptability capacities. Recently, some papers have extended the reflective middlewares with autonomic capabilities based on the autonomic computing paradigm. One of the main component is the MAPE-K (Monitor-Analyze-Plan-Execute plus Knowledge) component of the autonomic manager. In this paper we develop a MAPE-K component as a service of the autonomic managers of a reflective middleware based on autonomic computing. In this way, the MAPE-K is distributed to each service that is part of the composition, and internally each component of MAPE-K is constructed as a separate service, distributed and weakly coupled, giving great flexibility. We test the MAPE-K component as a service in a reflective middleware architecture based on autonomic computing, for the distributed diagnostic of faults in the services composition.