Mobile agent model for transaction processing on distributed objects

A transactional agent is a mobile agent which manipulates objects in one or more than one computer so as to satisfy some constraint like ACID. An agent creates a surrogate agent on a computer on leaving the computer. A surrogate holds objects manipulated by the agent until the agent terminates. The surrogate can recreate a new incarnation of the agent if the agent is faulty. Transactional agents for multiple database servers are implemented in Aglets. We evaluate the performance in terms of total access time compared with traditional client-server model.