Beyond 1-Safety and 2-Safety for Replicated Databases: Group-Safety

  • Matthias Wiesmann
  • André Schiper
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2992)


In this paper, we study the safety guarantees of group communication-based database replication techniques. We show that there is a model mismatch between group communication and database, and because of this, classical group communication systems cannot be used to build 2-safe database replication. We propose a new group communication primitive called end-to-end atomic broadcast that solves the problem, i.e., can be used to implement 2-safe database replication. We also introduce a new safety criterion, called group-safety, that has advantages both over 1-safety and 2-safety. Experimental results show the gain of efficiency of group-safety over lazy replication, which ensures only 1-safety.


Group Communication Acid Property Replication Scheme Distribute Computing System Replication Technique 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Matthias Wiesmann
    • 1
  • André Schiper
    • 1
  1. 1.École Polytechnique Fédérale de Lausanne (EPFL)LausanneCH

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