栅格通信网资源管理系统的研究与设计

发布时间：2018-07-13 11:11

【摘要】：从本质上讲栅格（Grid）是一种新兴的计算基础设施，被称为第三代Internet。栅格可以把地理上广域分布的各种零散资源整合起来，提供更加强大的功能。栅格网中的资源具有分布性、异构性、动态性和自治性，对网络中的资源进行有效的管理是栅格系统得以应用的重要前提。栅格网资源管理主要分为资源的发现与监视、调度与控制，本课题主要研究资源的发现与监视。本文首先对栅格网的特点、体系结构进行了简要介绍，并对栅格环境下新的网络管理需求和特点进行了说明，，结合栅格服务的实现技术WebService分析了Web服务的协议栈、框架、和调用流程。在此基础上，对栅格网中的资源发现机制进行了研究和分析，结合栅格网资源组织、分布特点，提出了一种分层分布式的跨域资源发现模型，根据小世界原理对网络中的资源进行组织，将栅格网中的资源发现分为域内查找和域间查找两部分，从而缩小了查找空间。通过对域内和域间查找算法的分析，发现传统的基于泛洪的域间资源发现存在冗余消息多，占用带宽大，时延长等缺点。因此将基于流言机制的资源发现算法（Rumor算法）引入到资源发现模型中，理论分析证实了Rumor算法能够有效地减少域间消息传递的盲目性，提高资源搜索效率。最后采用基于Apache CXF的WebService技术实现了栅格服务形式下栅格网资源管理，主要解决了分布式跨域的资源发现和获取问题，实验表明有权限的用户可以使用Web浏览器或其它应用程序登陆门户服务器访问栅格网资源管理服务，实现对各种异构网络的一体化管理。
[Abstract]:Grid is essentially a new computing infrastructure called the third generation Internet. Grids can integrate geographically distributed scattered resources to provide a more powerful function. The resources in grid network are distributed, heterogeneous, dynamic and autonomous. It is an important prerequisite for grid system to manage the resources effectively. Grid network resource management is mainly divided into resource discovery and monitoring, scheduling and control. In this paper, the characteristics and architecture of grid network are briefly introduced, and the requirements and characteristics of new network management in grid environment are explained. The protocol stack and framework of Web service are analyzed in combination with the implementation technology of grid service. And call the flow. On this basis, the mechanism of resource discovery in grid network is studied and analyzed. According to the characteristics of grid resource organization and distribution, a hierarchical and distributed cross-domain resource discovery model is proposed. According to the principle of small world, the resource discovery in grid network is divided into two parts: intra-domain search and inter-domain search, so the search space is reduced. Based on the analysis of intra-domain and inter-domain lookup algorithms, it is found that the traditional inter-domain resource discovery based on flooding has many shortcomings, such as redundant messages, large bandwidth, time extension and so on. Therefore, the rumor-based resource discovery algorithm (Rumor algorithm) is introduced into the resource discovery model. Theoretical analysis proves that Rumor algorithm can effectively reduce the blindness of inter-domain messaging and improve the efficiency of resource search. Finally, the technology of Web Service based on Apache CXF is used to realize grid network resource management in the form of grid service, which mainly solves the problem of distributed cross-domain resource discovery and acquisition. Experiments show that users with authority can use Web browser or other applications to log into portal server to access grid network resource management services, and realize the integrated management of various heterogeneous networks.
【学位授予单位】：河北科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.07

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