A Middleware Testbed for Supporting Flexible Consistency and Mobility

分布式系统正变得越来越重要，因为它们为电力和电话服务等基本基础设施提供信息支持，并作为公司管理全球歌剧的一种手段。它们也变得无处不在，因为许多应用程序需要更大的计算能力和分布式资源。最终的影响是，大量的数据需要在广泛的用户之间共享。该提案计划调查分布式系统可伸缩中间件设计中的移动性和效率的长期问题。这项工作将包括为移动环境实现分布式中间件。具体的研究主题是：-中间件的一致性要求的形式化和实现-数据放置和复制的算法-支持冲突解决和支持移动性的协议，以及-在计算框架中合并流数据。这些研究的结果将是使用所研究的算法和协议的实验原型的发展。为了对原型进行实验，许多应用程序将在校园环境中实现。这项研究的目标是帮助指导大规模中间件的长期开发。

Distributed systems are becoming ever more important as they provide information support for basic infrastructures such as electrical and telephone service, and as a means for corporations to manage worldwide operettas. They are also becoming ubiquitous because many applications demand greater computational power and require distributed resources. The net impact is that a vast amount of data needs to be shared across a broad array of users.The proposal plans to investigate the long-term issues of mobility and efficiency in the design of scalable middleware for distributed systems. The effort will include the implementation of a distributed middleware for mobile environments. Specific research themes to be pursued are:- formalization and implementation of consistency requirements for middleware- algorithms for data placement and replication- protocols for support of conflict resolution and the support of mobility, and- incorporation of stream data in a computational framework.The results of these investigations will be the development of an experimental prototype that uses the researched algorithms and protocols. In order to experiment with the prototype, a number of applications will be implemented in a campus environment. The goal of the research is to help guide long-term development of middleware at large scale.