Transactional agents: towards a robust multi-agent system
Transactional agents: towards a robust multi-agent system
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In this paper we discuss a new open nested multidatabase transaction model called interactions. Interactions sit above a layer that provides atomic, serializable global multidatabase transactions. It provides additional support for planning applicaitons, which are long-running applicaitons that may need to respond to changes in the underlying multidatabase.We begin by describing Interactions and the multidatabase architecture that they run on. We then discuss synchronization of interactions. We describe the nature of events, which the applications can use to monitor changes in the information in the multidatabase. When relevant events occur, we define how they are detected and how to respond to them. This response usually involves semantically undoing part of at least one Interaction, so we give a brief description of how recovery works in tht situation.