A transactional agent model for distributed object systems

摘要

A transactional agent (TA) is a mobile agent which manipulates objects in multiple object servers with some constraints. For example, in a majority constraint, a transaction can commit if objects in more than half of the servers are successfully manipulated. An agent leaves a surrogate agent on a server on leaving the server in order to hold objects manipulated by the agent. A surrogate agent recreates an agent if the agent is faulty. We discuss how TAs with types of constraints can commit. We discuss implementation and evaluation of TAs for multiple servers.