Title: Consistency preservation of replicas based on access frequency for content sharing in hybrid peer-to-peer networks

Authors: Ryota Yoichi; Shinji Sugawara

Addresses: Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho Showa-ku, Nagoya 466-8555, Japan ' Department of Information and Communication Systems Engineering, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino 275-0016, Japan

Abstract: Various consistency maintenance strategies of content sharing in pure peer-to-peer (P2P) networks have been researched recently. However, the ones applied in hybrid P2P networks have not been investigated enough. In hybrid P2P networks, when an update of a content item happens on a peer, it is necessary to propagate the update to all the peers which have obsolete replicas of the same content item. In this paper, we propose a method which maintains consistency among the replicas of content items in a practical way when a content item is updated. In this method, the peers which have the replicas of frequently accessed content items are previously selected, and when an update occurs, the updating data is propagated to the peers on a priority basis. Furthermore, we discuss the effectiveness of the proposal by using computer simulations.

Keywords: hybrid peer-to-peer; replication; consistency.

DOI: 10.1504/IJSSC.2017.089881

International Journal of Space-Based and Situated Computing, 2017 Vol.7 No.4, pp.197 - 206

Received: 14 Jun 2017
Accepted: 31 Oct 2017
Published online: 14 Feb 2018 *

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