Abstract
Quality of service is one of the most important factors for successful grid applications. However, individual QoS constraint (IQC) and QoS-awared replica placement have not yet been well addressed in the existing data grid. Existing QoS-awared replica placement algorithms neither can support multiple QoS attributes, nor have good scalability. In this paper, a three-phrase QoS-awared replica placement algorithm based on matrix, namely TP-GABMAC, is presented to solve these problems. Furthermore, a replica ring mechanism is introduced to maintain replica consistency and manage update conflicting. Experiments and analysis demonstrate that the proposed algorithms are not only stable and scalable, but also work well under different network topologies, access patterns and workloads.
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Xiao, N., Fu, W. & Lu, X. QoS-awared replica placement techniques in data grid applications. Sci. China Inf. Sci. 53, 1487–1496 (2010). https://doi.org/10.1007/s11432-010-4036-3
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DOI: https://doi.org/10.1007/s11432-010-4036-3