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应用科学学报

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基于服务级协定的Globus资源管理模型实现框架

祁超1，2, 张璟1, 何聚厚2   

  1. 1．西安理工大学 计算机科学与工程学院，陕西 西安 710048；2．陕西师范大学 计算机科学学院，陕西 西安 710062

  • 收稿日期:2007-11-05 修回日期:2008-06-27 出版日期:2008-09-27 发布日期:2008-09-27
  • 通信作者: 祁超

Implementation of Globus Resource Management Model Based on Service Level Agreement

QI Chao 1，2, ZHANG Jing 1, HE Ju-hou2   

  1. 1．School of Computer Science and Engineering, Xi′an University of Technology, Xi′an 710048, China;2．School of Computer Science, Shaanxi Normal University, Xi′an 710062, China

  • Received:2007-11-05 Revised:2008-06-27 Online:2008-09-27 Published:2008-09-27
  • Contact: QI Chao

摘要： 针对Globus资源管理模型缺乏QoS机制.该文提出一个支持动态QoS重协商的Globus资源管理模型框架.通过扩展Web服务协定规范使其支持重协商并能在服务供应期间修改协定条款；然后重点研究如何将扩展的Web服务协定框架集成到Globus资源管理模型中，设计出一个支持动态QoS重协商的Globus资源管理框架，并通过关键Web服务的实现验证该框架的实际可行性.理论分析和实验结果表明，该模型框架不仅能提高任务的成功率，而且能均衡网格资源负载.

关键词: 重协商, 服务质量, Web服务协定, 服务级协定, 作业描述语言

Abstract: As the Globus resource management (GRM) model lacks QoS mechanism, this paper proposes an extended framework for GRM, GRMF, which can support dynamic QoS renegotiation. WS-Agreement specification is extended to support renegotiation and modification of the agreement terms during the service provision. Then, integration of the extended WS-Agreement framework with GRM model is studied. The dynamic QoS renegotiation-supported GRMF is devised accordingly. Feasibility of the framework is validated by realizing key web services. The theoretical analysis and experimental results show that the framework can improve the success ratio of tasks, and allow better resource load balancing within the grid.

Key words: re-negotiation, QoS, WS-Agreement, service level agreement (SLA), job description language (JDL)

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