¹Institute of Computer Science, Masaryk University, Brno, Czech Republic
²CESNET, z. s. p. o., Praha, Czech Republic

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Abstract—In this paper, we propose a distributed data storage framework that supports unrestricted offline access. The system does not explicitly distinguish between connected and disconnected states. Its design is based on a lock-free distributed framework that avoids update conflicts through file versioning. We propose an algorithm for replica synchronization. The feasibility of this framework is confirmed by a proof-of-concept implementation. We also demonstrate that the proposed lock-free replica synchronization algorithm scales well. A future work will include also direct support for non-versioned files.

Index Terms—lock-free distributed replication, disconnected operations, file versioning, conflict avoidance

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Cite: Luk´aˇs Hejtm´anek, Ludˇek Matyska, " Nonblocking Distributed Replication of Versioned Files," Journal of Software vol. 2, no. 5, pp. 16-23, 2007.