High Reliability Cloning Technology for Autonomous Descentralized Service-Oriented Architecture

Autonomous Decentralized Service Oriented Architecture (ADSOA) is a proposal to design and develop Mission Critical Systems (MCS) in which the system functionality is divided into service units in order to provide functional reliability and load balancing, on the other hand, it offers high availability through distributed replicas. This paper presents a technology to autonomously detect and recover gradually all the unit services required for the operational service level in ADSOA in case of failures in such replicas. This technology is based on a cloning mechanism that is activated once the operational service level has been compromised due to some failed services units. We describe the protocol and algorithms that the healthy services units utilize in this cloning mechanism and show how they coordinate among them in order to avoid a massive creation of replicas. A prototype has been developed in order to verify the feasibility of this technology.