【作者】 裘君；

【导师】 吴朝晖；

【作者基本信息】 浙江大学 ， 计算机应用， 2005， 硕士

【摘要】 网格是下一代Internet上的计算平台,其核心任务是管理分布在Internet广域环境中的各种类型的数据与服务资源,并为基于Internet的分布式应用提供一个统一的、虚拟的共享资源的计算平台。作为网格计算模型的一个重要组成部分,网格上的数据库管理问题一直以来是网格研究的一个热点。来自于科学与商业领域的大量网格应用迫切需要数据库系统的支持,因此,如何管理数据库网格环境、以及满足更广泛的网格应用的数据管理需求,已经成为一项亟待解决的新课题。本文从动态开放的网格环境下数据的资源共享与协同管理的应用需求背景出发,综合了现有的Internet下的数据资源的信息共享与整合管理的解决方案,DartConsole数据库网格管理模型提出了一套面向数据库资源的管理方案,解决了如下问题:统一的数据库资源访问、动态数据库网格环境的监控及性能管理、基于VO的数据库网格环境的安全管理等。在设计上,DartConsole平台基于OGSA框架的网格服务体系进行设计,并充分利用Eclipse的插件机制进行开发,满足了网格管理软件严格的可靠性、稳定性、规范性和高性能等方面的各项要求,同时又具有很好的可重用性和可扩展性,便于根据用户需求进行裁剪和定制。它以采用基于语义的资源融合为主线,提出了资源在语义层次上的规则推理,不仅使用户可以高效地为计算任务寻找合适的资源,更重要的是能够对资源语义信息进行管理,以及更高层次的语义推理,并为故障监控、自修复等服务提供接口。本文阐述了数据库网格管理的基本思想,描述了管理服务模型架构的设计及实现。本文还介绍了DartConsole在传统中医药研究领域的一个应用测试床。最后,本文进行了总结并提出了进一步的工作展望。本文得到以下基金资助:国家973计划(2003CB316906) -“语义网格的基础理论、模型和方法研究”之子课题“语义网格在中医药知识共享与服务的应用研究”;国家863计划(2001AA113142) -“支持中医药数据与知识深度共享的中医药应用网格”。更多还原

【Abstract】 Grid is the next-generation Internet Computing platform. The key task of Grid aims at the management of a variety of software and hardware resources distributed across the Internet wide-area based environment, which composes a uniform and virtual computing platform of shared resources. As a pillar of Grid computing model, Grid data management has always been an intensive research issue. Nowadays a large of number of Grid application from the scientific and commercial domains is in great need of database support. Therefore, how to widely fulfill the data management requirements from Grid application, has become an impending research topic.This thesis begins with the analysis of application requirement of data resource sharing and collaborative management in the dynamic and open Grid context, DartConsole proposes a series of management concepts for database grid resources, based on a combination of the current means, of data-source centered information sharing and integration management. It has solved the following problems: uniform database resources access, dynamic monitor and performance management under database grid, security management based on VO, etc. DartConsole, compatible with the existing Grid service architecture specification - OGSA, is a database resource management platform oriented to the Grid computing environment. Furthermore, the development takes advantage of the mechanism of Eclipse plug-ins. It will satisfy the reliability, stability, standarlization and high performance required by grid software management. It is also reusable, extensible, and easy to be adapted to the user’s requirement. The paper proposes an approach of rule inference based on semantics of the resources. It is efficiently for users to search appropriate resources for their computing task. Moreover, it makes the resource more manageable and higher-level semantics inference possible. Also, it provides interfaces for services such as fault monitoring and self-recovery. This thesis also describes design and implementation of a prototype. Finally we introduce an application testbed in the domain of Traditional Chinese Medicine, in which DartConsole is applied to.This work is supported by a grant from the National High Technology Research and Deve lopment Program of China (973 Program), No. 2003CB316906; a grant from the National High Technology Research and Development Program of China (863 Program), No. 2001AA113142.更多还原