Dynamic Replication for Secure Mobile Caching:
A Control Theoretic Approach

Taek-Young Youn¹⁺, Ki-Woong Park^2*, and Joongheon Kim³

¹ETRI, Daejeon, Republic of Korea

taekyoung@etri.re.kr

²Sejong University, Seoul, Republic of Korea

woongbak@sejong.ac.kr

³Chung-Ang University, Seoul, Republic of Korea

joongheon@cau.ac.kr

Abstract

This paper proposes a reliable and self-adaptive reliability maximization policy for virtual machine replication in distributed cloud servers. In order to guarantee reliable virtual machine services, cloud computing service providers are operating virtual machine replication into multiple servers in order to provide seamless services even though several servers are out of order. In this replication-based cloud server system, our proposed algorithm controls the number of virtual machine replications for time-average maximization of reliability under server storage capacity limits based on the theory of Lyapunov optimization. As verified through simulation-based data intensive performance evaluation, our proposed algorithm presents desired results.

Keywords: Dynamic replication, Mobile caching, Distributed cloud computing

+:Corresponding author: Taek-Young Youn

ETRI, 138, Gajeongno, Yuseong-gu, Daejeon, 34129, Korea, Tel: +82-10-6851-3238

*:Corresponding author: Ki-Woong Park

Sejong University, 98, Gunja-dong, Gwangjin-gu, Seoul, Korea, Tel: +82-10-9165-1624

IT Convergence Practice (INPRA), Vol. 6, No. 4, pp. 12-20, December 2018 [pdf]