MRI Development: Enabling Lightweight Planetary Scale Services

该项目开发虚拟PlanetLab（模拟Planet Lab），旨在验证实验是否达到与直接在PlanetLab/ GENI系统上运行时相同的性能和故障行为。这项工作涉及网络仿真，构建工具包以简化PlanetLab上的开发和编程，调查控制和管理平面服务。目前，只有研究人员付出极大的努力，才能用Emulab进行理论上的验证。在15年的时间里，互联网已经从学术界所熟知的一个默默无闻的研究网络发展成为国家基础设施的一个重要组成部分;但是，由于其架构无法快速适应新出现的挑战，它正在成为自身成功的牺牲品。越来越多的弱点被利用，限制了新技术的吸收和对新应用的支持。为了促进新一代分布式系统和网络协议的发展，世界各地的研究人员创建了一个名为PlanetLab的测试平台，使研究能够真正实现全球规模的服务，其中每个研究人员都可以在广泛分布的节点集上使用虚拟化切片。PlanetLab目前遍布全球300个不同的地点，拥有400多个活跃的研究项目。因此，为了支持网络和分布式系统的研究，NSF CISE最近提出了构建GENI（全球网络研究环境）。该工作旨在显著提高PlanetLab和GENI等行星级实验平台的成本效益，并缩短PlanetLab/GENI新研究人员开发和部署实验的启动时间。一个能够适应/生存实践中遇到的各种类型的节点故障的事务服务管理器、简单的作业和管道控制以及分布式调试器有望促进PlanetLab的使用。该软件工具包可以研究健壮的内容分发，真实的时间多媒体交付，安全，路由，网络嵌入式存储和文件共享，分布式信息管理，互联网测量，分布式资源分配，网络层修改。

This project, developing virtual PlanetLab(an emulation Planet Lab), targets verifying whether an experiment attains the same performance and failure behavior as when run directly on the PlanetLab/ GENI system. The work involves network emulation, building a toolkit to ease the development and programming on PlanetLab, investigating control, and managing plane services. At present, only with extreme effort on the part of the researcher is this verification theoretically possible with Emulab. In fifteen years the Internet has gone from an obscure research network known to the academic community to a critical piece of national infrastructure; but, because its architecture is unable to quickly adapt to meet emerging challenges, it is becoming the victim of its own success. Vulnerabilities are being increasingly exploited limiting assimilation of new technologies and support of new applications. To foster the development of a new generation of distributed systems and network protocols, researchers around the world have created a testbed called PlanetLab, enabling research into truly planetary scale services where each researcher may utilize a virtualized slice across a widely distributed set of nodes. PlanetLab currently spans three hundred separate locations worldwide hosting over four hundred active research projects. Consequently, to support network and distributed systems research, NSF CISE has recently proposed constructing GENI (Global Environment for Network Investigations). This work aims to-Dramatically improve the cost-effectiveness of planetary scale testbeds such as PlanetLab and GENI and-Reduce the startup time for new PlanetLab/GENI researchers to develop and deploy an experiment.A transactional service manager that can adapt/survive the myriad types of node failures encountered in practice, simple job and pipe control, and distributed debugger are expected to facilitate the use of PlanetLab. The software toolkit enables research in-Robust content distribution, Real time multimedia delivery, Security, Routing,-Network embedded storage and file sharing, Distributed information management,-Internet Measurement, Distributed resource allocation, and Network layer modifications.