Collaborative Research: Software Architectures for Distributed Web Services Based on Peer-to-Peer Techniques

协作研究：基于对等技术的分布式Web服务的软件架构

• 批准号: 0509440
• 负责人: Laxmi Bhuyan
• 金额: $ 27.56万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-10-01 至 2009-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0509440&HistoricalAwards=false
• 关键词: Collaborative; Research; Software; Architectures; Distributed

One of the most pressing issues faced by today's IT researchers is how to provide a distributed server infrastructure to accommodate the exponentially increasing web accesses. This project considers web services consisting of geographically distributed servers, client caching, proxy caching, and distributed searching in a virtual network, embedded on top of a physical network. A set of software techniques is developed based on peer-to-peer (P2P) algorithms to achieve optimal overall performance and reliability with existing hardware/software resources. The project is carried out jointly at University of California, Riverside and Suffolk University. Researchers from HP Laboratories are involved as senior personnel.The web server, considered in this project, consists of geographically distributed heterogeneous nodes in a network based on different functionalities and applications of the web service. Clustering techniques are developed to create suitable P2P structures keeping in mind the topological properties of the Internet systems. Inside the cluster, scalable, efficient and high performance overlay network architectures are identified for web services. Efficient cooperative proxy cache placement and management mechanisms are developed in the virtual network following distributed shared memory (DSM) approaches. Proxy servers are combined with P2P clusters consisting of browser (client) caches, and a cooperative caching strategy is designed at the proxy level by embedding tree structures and directory schemes. Extensive software implementation, simulation, testing and evaluation are carried out using the PlanetLab distributed environment.

当今IT研究人员面临的最紧迫的问题之一是如何提供分布式服务器基础设施，以适应呈指数级增长的Web访问。这个项目考虑了Web服务，包括地理上分布的服务器，客户端缓存，代理缓存和分布式搜索在虚拟网络中，嵌入在物理网络的顶部。一套软件技术的基础上开发的对等（P2P）算法，以实现最佳的整体性能和可靠性与现有的硬件/软件资源。该项目由加州大学、滨江大学和萨福克大学联合开展。HP实验室的研究人员作为高级人员参与了该项目。Web服务器，考虑在这个项目中，由地理上分布在网络中的异构节点基于Web服务的不同功能和应用。聚类技术的发展，以创建合适的P2P结构牢记互联网系统的拓扑特性。在集群内部，可扩展的，高效的和高性能的覆盖网络架构被确定为Web服务。采用分布式共享存储器（DSM）方法，在虚拟网络中开发了高效的协作代理缓存放置和管理机制。将代理服务器与由浏览器（客户端）缓存组成的P2P集群相结合，通过嵌入树结构和目录机制，在代理层设计了一种协作缓存策略。使用PlanetLab分布式环境进行广泛的软件实施，模拟，测试和评估。