一种利用云环境实现Web服务组合容错的方法

随着Web服务迅猛发展,基于SOA的服务组合容错性研究成为了业界关注的焦点.服务组合中组件的失效,会导致整个组合执行失败,而资源不足、服务器负载过重是引发组件失效的主要原因之一.云计算作为一种新的计算泛型,其资源整合、动态分配的特点为解决传统SOA下因资源受限而引发的失效提供了新的容错思路.FTEL层将中间件技术应用到服务组合容错上,借助云环境完成服务替换,对传统SOA下较难解决的由于资源问题引起的组件失效进行了容错.

A Fault-tolerant Method for Web Service Composition Based on Cloud Environment

With the rapid development of Web services,research of fault tolerance of service composition based on SOA become the focus of concern to the industry.Web service component failure may cause the failure of execution of whole service composition.The lack of resources and the overload of server are one of the main reasons of the failure of service components.Cloud computing is a new computing generic,its characteristics of resources integration and resources dynamic allocation provide new ideas for resolve the failures caused by resource-constrained in traditional SOA architecture.FTEL applied middleware technology to the fault-tolerant of services composition,which complete the replacement of the service component with cloud environment.The FTEL achieve the purpose of fault-tolerant of service composition,and solve the problem of failures caused by resource-constrained in traditional SOA architecture.