A Replica Selection Decision in Cloud Computing Environment

Jing Li

doi:10.4028/www.scientific.net/AMR.121-122.801

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 121-122A Replica Selection Decision in Cloud Computing...

A Replica Selection Decision in Cloud Computing Environment

Abstract:

Data replication is adopted to improve data access performance in cloud computing environment. When different sites hold replicas, there are significant benefits while selecting the best replica. In this paper, we propose a new replica selection algorithm based on prediction. Analyzing the factors infecting replica selection, The grey system theory is utilized to help predicting the data response time on the basis the GM(1,1) grey dynamic model; Meanwhile the Markov chain is applied to achieve state transition probability matrix to predict the reliability of replicas in the form of probability by the system state classification. The simulation results show that in our replica selection model, the prediction is valid, helpful to selection decision, and is able to achieve load balance between nodes holding replicas.

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Periodical:

Advanced Materials Research (Volumes 121-122)

Pages:

801-806

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.121-122.801

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Online since:

June 2010

Authors:

Jing Li

Keywords:

Cloud Computing, Grey System, Replica

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