CSR: Small: Efficient and Reciprocal File Replication and Consistency Maintenance in Pervasive Distributed Computing

过去十年的技术进步为普适分布式计算(PDC)带来了光明的未来，它可以在世界各地随时随地提供对信息和服务的访问。互联网规模的应用程序的激增对如何设计和管理未来的文件系统以实现这一未来提出了新的挑战。这些挑战的难度随着用户数量和数据密集度的增加而增加，并且由于需要支持复制和一致性而进一步加剧。然而，以前的文件复制和一致性维护方法效率不够高，无法满足PDC的可伸缩性。这两个问题通常是分开处理的，尽管它们之间存在重大的相互依存关系。本研究通过开发一个具有高效和交互的文件复制和一致性维护(ERRC)的文件管理系统来解决这一问题。ERRC系统将结合基于群体智能的文件复制和协调的面向多因素的文件复制算法，以实现文件复制和一致性维护的高效率。该系统还包含自适应文件复制和一致性维护机制，允许每个节点以分散的方式确定文件复制和一致性维护的需求。除出版和软件发布渠道外，还将通过技术转让向行业合作伙伴传播通过该项目获得的理解和洞察力。这项研究的多学科性质也有助于跨学科教育和学生的全面培养。

Advancements in technology over the past decade are leading to a promising future for pervasive distributed computing (PDC), where access to information and services is provided anytime and anywhere around the world. The proliferation of Internet-scale applications poses new challenges for how future file systems are designed and managed to enable this future. The difficulty of these challenges grows with the number of users and the intensity of the data, and is further compounded by the need to support replication and consistency. However, previous file replication and consistency maintenance approaches are not efficient enough to be scalable for PDC. These two issues are typically addressed separately, despite the significant interdependencies between them. This research addresses this issue through the development of a file management system with Efficient and Reciprocal file Replication and Consistency maintenance (ERRC). The ERRC system will incorporate swarm intelligence based file replication and coordinated multi-factor-oriented file replication algorithms to achieve high efficiency in both file replication and consistency maintenance. The system also contains self-adaptive file replication and consistency maintenance mechanism that allows each node to determine the need of file replication and consistency maintenance in a decentralized manner. Understanding and insight gained as a result of this project will be disseminated through technology transfer to industry partners, in addition to publication and software release channels. The multi-disciplinary nature of this research also lends itself to cross-disciplinary education and well-rounded training of students.