ITR/CISE: LOCKSS

ITR/CISE：LOCKSS

• 批准号: 0205667
• 负责人: Michael Keller
• 金额: $ 193.05万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-01 至 2006-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0205667&HistoricalAwards=false
• 关键词: ITR; CISE; LOCKSS

A highly dependable information infrastructure requires systems that are massively replicated, slow to fail, and resistant to attack. The LOCKSS system uses novel techniques for increasing dependability that show promise of wider applicability and increasing importance in this area, including:Building a fault-tolerant system from a large number of replicas that take part in "opinion polls" rather than a small number of replicas that take part in elections.Limiting the speed at which the system operates in order to limit the speed at which it can fail.Building a system that resists the activities of the "bad guy" without requiring that secrets be kept, in part by using public communication and a reputation system.Experience with this and other peer-to-peer systems shows that the real challenges of making systems work only become apparent at a realistic operational scale and running on real networks. The LOCKSS system is now running on the Internet with 60 peers worldwide. The project will exploit this LOCKSS test-bed to investigate areas in which further work is needed.

高度可靠的信息基础设施需要大规模复制的系统，故障缓慢，并且能够抵御攻击。LOCKSS系统使用新技术来提高可靠性，这些技术在这一领域显示出更广泛的适用性和日益增长的重要性，包括：从大量参与“民意调查”的复制品而不是少量参与选举的复制品中构建容错系统。限制系统运行的速度，以限制系统可能失败的速度。构建一个抵制“坏人”活动的系统，而不要求保守秘密，部分通过使用公共通信和声誉系统。这方面的经验和其他同行对对等系统表明，使系统工作的真实的挑战只有在现实的操作规模和在真实的网络上运行时才变得明显。LOCKSS系统目前在因特网上运行，全世界有60个对等系统。该项目将利用这个LOCKSS试验台来调查需要进一步工作的领域。