Unified Data Replication Architecture

美国国家科学基金会分布式系统研究CISE/ cnsabstract提案号：0411026首席研究员：Dahlin， Michael d .机构：德克萨斯大学奥斯汀分校提案标题：统一数据复制架构数据复制是提高大规模分布式系统性能和可用性的基本技术。然而，当前的复制机制与策略决策纠缠在一起，这使得很难在新环境中重用现有系统，并且限制了使用这些机制构建的系统的有效性。本研究的目标是为大规模分布式服务开发统一的数据复制体系结构和工具包。如果成功，这项工作将简化系统的构建，提高系统设计者可用的可用性、一致性和性能的权衡，并使社区对数据复制的核心技术有更深的理解。具体的研究目标包括：(1)为大规模分布式系统中的数据复制开发一种新的架构，将复制机制与策略分离；(2)系统地开发改进的低级复制机制、可扩展和灵活的一致性机制以及自调数据放置机制；(3)构建一个用于技术改进和转移的工具包，并使用该工具包开发几个关键的案例研究复制系统。Brett D. fleisch CISE/ cns项目主任，2004年5月28日。

National Science FoundationDistributed Systems Research CISE/CNSABSTRACTProposal Number: 0411026Principal Investigator: Dahlin, Michael D.Institution: University of Texas at AustinProposal Title: Unified Data Replication ArchitectureData replication is a fundamental technique for improving the performance and availabil-ity of large-scale distributed systems. However, current replication mechanisms are en-tangled with policy decisions that make it difficult to re-use existing systems in new envi-ronments and that restrict the effectiveness of systems built using these mechanisms. The goal of this proposed research is to develop a unified data replication architecture and toolkit for large-scale distributed services. If successful, this work will will simplify building systems, improve the availability v. consistency v. performance trade-offs avail-able to system designers, and give the community a deeper understanding of the tech-niques at the core of data replication. Specific research objectives include (1) developing a novel architecture for data replication in large scale distributed systems that separates replication mechanism from policy, (2) systematically developing improved low-level replication mechanisms, scalable and flexible consistency mechanisms, and self-tuning data placement mechanisms, and (3) constructing a toolkit for technology refinement and transfer as well as using this toolkit to develop several key case study replication systems.Dr. Brett D. FleischProgram Director, CISE/CNSMay 28, 2004.