云服务资源状态监测及服务组合机制研究

发布时间：2018-03-15 10:28

本文选题：云服务　切入点：REST　出处：《山东大学》2014年硕士论文　论文类型：学位论文

【摘要】：云计算无疑是当前IT界最热门的话题,它不仅为IT资源的使用和管理带来革命性的创新,同时也让更多已有技术和新兴技术有了更宽广的应用前景。云计算引发计算机技术的迅猛发展,也极大地改变了IT产业的结构,使用“云服务”将逐步取代用户自购硬件、自建系统、自主维护,传统IT产业面临巨大变革。建立起云计算应用平台后,如何对云平台上复杂多样的资源进行有效监测,是保障云服务质量的关键。现有云监测系统中,由于要对大量资源负载信息进行收集,监测组件与被监测资源间数据传输频繁,通信开销较大,会对云平台的正常运行造成影响,从而使云服务质量下降。本文就如何对云服务资源状态监测进行了研究,分析了云服务资源状态监控的指标、体系结构、数据传输、告警等相关问题以及服务组合机制对云服务的影响。云服务资源包含本地服务资源和远程服务资源。本地服务资源主要为IT基础设施,远程服务资源主要是Web服务。传统的Web服务基于SOA (Service Oriented Architecture,面向服务架构),通常采用RPC (Remote Procedure Call Protocol,远程过程调用协议)架构,存在可扩展性低、耦合度高等不足。基于ROA(Resource-Oriented Architecture,面向资源架构)的REST (Representational StateTransfer,表述性状态转移)的提出,较好地弥补了这一不足。本文分析了REST起源与发展,对异构服务的编制进行了研究,提出异构服务混合编制方法,可以使系统获得更好的性能。单一的Web服务往往难以满足需求,实际应用中为提供所需的业务功能,我们需要把独立的Web Services组合成Web服务组合。Web服务组合有很多分类,基于工作流的Web服务组合是当前应用最多最为成熟的,但是也存在着处理复杂流程能力不足的问题。本文尝试把异步流水的思想应用在Web服务组合,可以有效简化开发流程,提升运行效率。
[Abstract]:Cloud computing is undoubtedly the most popular topic in the IT field. It not only brings revolutionary innovation to the use and management of IT resources, At the same time, it also gives more existing and emerging technologies a broader application prospect. Cloud computing has triggered the rapid development of computer technology, and has greatly changed the structure of the IT industry. The use of "cloud services" will gradually take the place of user-purchased hardware. Self-built system, independent maintenance, the traditional IT industry is faced with tremendous changes. After the cloud computing application platform is established, how to effectively monitor the complex and diverse resources on the cloud platform is the key to ensure the cloud service quality. The data transmission between monitoring components and monitored resources is frequent and the communication overhead is high, which will affect the normal operation of cloud platform and cause the quality of cloud service to decline. In this paper, how to monitor the status of cloud service resources is studied. The index, architecture, data transmission, alarm and other related problems of cloud service resource state monitoring are analyzed, and the influence of service composition mechanism on cloud service is analyzed. Cloud service resources include local service resources and remote service resources. Local service resources are mainly IT infrastructure, The traditional Web services are based on SOA Service Oriented Architecture and service-oriented architecture. They usually use RPC remote Procedure Call protocol (remote Procedure Call protocol) architecture, which has low extensibility. This paper analyses the origin and development of REST, and studies the programming of heterogeneous services. A hybrid programming method for heterogeneous services is proposed, which can improve the performance of the system. A single Web service is often difficult to meet the requirements. In order to provide the required business functions in practical applications, we need to compose independent Web Services into Web service composition. The Web service composition based on workflow is the most mature application at present, but it also has the problem of dealing with the insufficiency of complex flow. This paper tries to apply asynchronous income's idea to the composition of Web services, which can simplify the development process effectively. Improve operational efficiency.
【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09

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