【摘要】 Web服务作为分布式应用开发的重要技术之一,目前仍有许多关键问题尚待解决,其中,Web服务的可用性是其非常重要的一个方面。容错作为提供可靠性和可用性的关键机制,它是任何一个关键计算领域应用开发者都可能要面临的问题。本文通过分析三种典型的容错模型,结合服务模型和反射模型的特点,提出一种改进的Web服务容错模型。对该模型中的容错基本服务、容错服务、通告服务进行了重新设计,最后通过实例运行介绍了改进后模型的工作流程。更多还原

【Abstract】 The Web service is one of the important technical development in the distributing application research.However there are a lot of questions to be resolved.The Web service availability is a very important aspect.Fault tolerance is a key mechanism of providing reliability and availability.It is a question that one may face as an applications developer in the field of computing.In this paper,an improved fault tolerant Web Services model is proposed,through the analysis of three typical fault tolerant computing model and the characteristics of service model and reflection model.It has redesigned Fault Tolerant Basic Services,Fault Tolerant Services and Notification Service.Finally,it shows the working process through an example under the improved model.更多还原