| 一种高效的Web服务迁移算法* |
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| 引用本文： | 胡坤,刘绍华,钟华,魏峻.一种高效的Web服务迁移算法*[J].计算机应用研究,2007,24(4):64-67. |
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| 作者姓名： | 胡坤 刘绍华 钟华 魏峻 |
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| 作者单位： | 中国科学院,软件研究所,软件工程技术中心,北京,100080 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了满足Web服务动态分布的需求,并保证Web服务迁移的一致性,提出一种基于Broker的Web服务迁移算法WS Broker.其在保证迁移一致性的基础上了,提高了迁移效率.另外,通过分析客户请求之间的依赖关系,提前执行了某些阻塞的客户请求,缩短了服务中断时间.实验结果表明,WS Broker在保证迁移一致性的基础上有效地提高了Web服务迁移的效率.
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| 关 键 词： | Web服务 服务迁移算法 迁移一致性 依赖关系 服务迁移 迁移算法 Algorithm Migration Web Services 迁移效率 结果 实验 中断时间 阻塞 依赖关系 客户请求 分析 Broker 一致性 需求 动态分布 |
| 文章编号： | 1001-3695（2007）04-0064-04 |
| 修稿时间： | 2006-02-162006-04-23 |
Efficient Web Services Migration Algorithm |
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| HU Kun,LIU Shao hu,ZHONG Hu,WEI Jun.Efficient Web Services Migration Algorithm[J].Application Research of Computers,2007,24(4):64-67. |
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| Authors: | HU Kun LIU Shao hu ZHONG Hu WEI Jun |
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| Affiliation: | (Technology Center of Software Engineering, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China) |
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| Abstract: | To meet the requirement of Web services' dynamic distribution and maintain the consistency of Web services migration was provided.A Broker-based Web services migration algorithm(WS Broker) was proposed.WS Broker guarantees the migration consistency and improves the migration performance.In addition,by analyzing the dependency relationship among the requests interrupted by the migration,WS Broker could process some of them in advance,which greatly reduces the total latency of request processing caused by the migration.The result of the test showes that WS Broker improves the perfor-mance of Web services migration efficiently. |
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| Keywords: | web services service migration algorithm migration consistency dependency relationship |
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