Fault-tolerant semifast implementations of atomic read/write registers

  • Authors:
  • Chryssis Georgiou;Nicolas C. Nicolaou;Alexander A. Shvartsman

  • Affiliations:
  • Department of Computer Science, University of Cyprus, CY-1678 Nicosia, Cyprus;Department of Computer Science and Engineering, University of Connecticut, Storrs CT 06269, USA;Department of Computer Science and Engineering, University of Connecticut, Storrs CT 06269, USA and Computer Science and Artificial Intelligence Laboratory, MIT, Cambridge, MA 02139, USA

  • Venue:
  • Journal of Parallel and Distributed Computing
  • Year:
  • 2009

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Abstract

This paper investigates time-efficient implementations of atomic read-write registers in message-passing systems where the number of readers can be unbounded. In particular we study the case of a single writer, multiple readers, and S servers, such that the writer, any subset of the readers, and up to t servers may crash. A recent result of Dutta et al. [P. Dutta, R. Guerraoui, R.R. Levy, A. Chakraborty, How fast can a distributed atomic read be? In: Proceedings of the 23rd ACM Symposium on Principles of Distributed Computing, 2004, pp. 236-245] shows how to obtain fast implementations in which both reads and writes complete in one communication round-trip, under the constraint that the number of readers is less than St-2, where t