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础设施提供信息支持，并作为企业管理全球轻歌剧的一种手段。 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，并需要分布式资源。 净影响是，大量的数据需要在广泛的用户群中共享。该提案计划调查分布式系统可扩展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的环境实现一个分布式中间件。 具体的研究主题是：-形式化和实施的一致性要求的中间件-算法的数据放置和复制-协议的支持冲突解决和支持的流动性，和-将流数据在一个计算框架。这些调查的结果将是一个实验原型，使用研究的算法和协议的发展。 为了试验原型，将在校园环境中实施一些应用程序。 研究的目标是帮助指导大规模中间件的长期发展。

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.