服务恢复中上下文建模与持久化

摘要

服务上下文是实现对用户透明的服务容错以及降低服务恢复代价的关键，然而现有研究缺乏关于服务恢复的上下文分类和表示方法。针对该问题，提出了面向服务恢复的上下文归类、表示和持久化方法。利用一定的应用场景对上下文的使用进行了说明。该方法对服务恢复、等价服务选取中上下文模型的构建提供了可靠的依据。%Service context is the key point for achieving transparent fault tolerance to the user, and reducing the cost during service recovery. However, the current research on service recovery lacks of a classification and representation method about context. Aiming to this problem, this paper presents a method of context classification, representation and persis-tence in service-oriented recovery. It utilizes the specific application scenario to describe the use of context data. The method provides a reliable basis to build context model for service recovery and the selection of equivalent services.