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计算机工程 ›› 2008, Vol. 34 ›› Issue (18): 89-92. doi: 10.3969/j.issn.1000-3428.2008.18.032

• 软件技术与数据库 • 上一篇    下一篇

Web服务组合运行中的容错架构

邹 方,高春鸣   

  1. (湖南师范大学数学与计算机科学学院,长沙 410081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-09-20 发布日期:2008-09-20

Fault-tolerant Framework at Runtime of Web Service Composition

ZOU Fang, GAO Chun-ming   

  1. (College of Mathematics and Computer Science, Hunan Normal University, Changsha 410081)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-09-20 Published:2008-09-20

摘要: 对Web服务组合进行容错处理是提高服务可用性和可靠性的有效途径。该文分析服务组合流程运行时经常出现的故障,对其故障的严重程度进行分级,提出执行引擎WebJetFlow在执行过程中的的容错架构。针对Web服务组合运行时故障的轻重程度,有针对性地实现了相应的在线处理策略,当流程执行时使业务功能和服务质量同时得到了保障。

关键词: Web服务组合, 容错, 服务质量

Abstract: The handling of Web service composition of fault-tolerant is a valid method to improve the usability and reliability of service. This paper classifies the failures of the runtime of Web service composition according to the severity degree. It also suggests a fault-tolerant framework during the execution of WebJetFlow, which designs and achieves corresponding online handling policy, aiming at different degree failure in the execution of WebJetFlow, making the function as well as the service quality guaranteed.

Key words: Web services composition, fault-tolerant, QoS

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