Mobility

A New Optimistic Replication Strategy for Large-Scale Mobile Distributed Database Systems

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Executive Summary

This paper proposes a new optimistic replication strategy for maintaining the eventual consistency in large-scale mobile distributed database systems. The proposed strategy consists of three components in order to support the characteristics of such systems. These components are: replication architecture, updates propagation protocol, and replication method. The purpose of the replication architecture is to provide a comprehensive infrastructure for distributing replicas among wide areas. The purpose of the propagation protocol is to transfer data updates between the components of the replication architecture in a manner that achieves the eventual consistency of data and improves the availability of recent updates to all replicas. The replication method provides a mechanism for implementing the propagation protocol, and automating the propagation of updates among the different replicas.

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