Affinity Replica Selection in Distributed Systems

  • W. S. W. AwangEmail author
  • M. M. Deris
  • O. F. Rana
  • M. Zarina
  • A. N. M. Rose
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11657)


Replication is one of the key techniques used in distributed systems to improve high data availability, data access performance and data reliability. To optimize the maximum benefits from file replication, a systems that includes replicas need a strategy for selecting and accessing suitable replicas. A replica selection strategy determines the available replicas and chooses the most access files. In most of these access frequency based solutions or popularity of files are assuming that files are independent of each other. In contrast, distributed systems such as peer-to-peer file sharing, and mobile database, files may be dependent or correlated to one another. Thus, this paper focused on the combination of popularity and affinity files as the most important parameters in selecting replicas in distributed environments. Herein, a replica selection is proposed focusing on popular files and affinity files. The idea is to improve data availability in distributed data replica selection strategy. A P2P simulator, PeerSim, is used to evaluate the performance of the dynamic replica selection strategy. The simulation results provided a proof that the proposed affinity replica selection has contributed towards a new dimension of replica selection strategy that incorporates the affinity and popularity of file replicas in distributed systems.


Replica selection Affinity files Popularity files Data availability Distributed systems Replication strategy 



We wish to thank internal grant of UNISZA (UniSZA/2017/DPU/72) for financial supporting our work. Also thanks to all team members in reviewing for spelling errors and synchronization consistencies and also for the constructive comments and suggestions.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • W. S. W. Awang
    • 1
    Email author
  • M. M. Deris
    • 2
  • O. F. Rana
    • 3
  • M. Zarina
    • 1
  • A. N. M. Rose
    • 1
  1. 1.Faculty Informatics and ComputingUniversity Sultan Zainal AbidinBesutMalaysia
  2. 2.Faculty of Computer Science and Information TechnologyUniversiti Tun Hussein Onn MalaysiaBatu PahatMalaysia
  3. 3.University of CardiffCardiffUK

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