期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2008
卷号：1
期号：1
出版社：SERSC
摘要：Replication can improve the reliability of a ComputationalGrid. Replication allows a resource to be used even if some of the in-stances are not running or are inaccessible. However the challenge ishow maintain consistent the replicas. In this paper we propose and eval-uate "Oriented Consistency" (OC), a weak consistency algorithm forthe dissemination of changes considering application-level in computerGrids. The main aim of this algorithm is optimizing the propagation ofchanges introducing a preference for nodes in Virtual Organizations ofthe Grid. The algorithm has been simulated over ns-2, and evaluatedwith several simple and complex spatial distributions of the users. Theimpulse response of the algorithm has been characterized. We concludethat considering application parameters such as clustered users of Vir-tual Organizations in the event or change propagation mechanism givesa surprising improvement in the speed of change propagation perceivedby most users. In other words, it satisfies the greatest number of usersin the shortest amount of time
