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Rapport (Rapport De Recherche) Année : 2007

Designing a commutative replicated data type

Résumé

Commuting operations greatly simplify consistency in distributed systems. This paper focuses on designing for commutativity, a topic neglected previously. We show that the replicas of any data type for which concurrent operations commute converges to a correct value, under some simple and standard assumptions. We also show that such a data type supports transactions with very low cost. We identify a number of approaches and techniques to ensure commutativity. We re-use some existing ideas (non-destructive updates coupled with invariant identification), but propose a much more efficient implementation. Furthermore, we propose a new technique, background consensus. We illustrate these ideas with a shared edit buffer data type.
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Dates et versions

inria-00177693 , version 1 (09-10-2007)
inria-00177693 , version 2 (10-10-2007)

Identifiants

  • HAL Id : inria-00177693 , version 2

Citer

Marc Shapiro, Nuno Preguiça. Designing a commutative replicated data type. [Research Report] RR-6320, INRIA. 2007. ⟨inria-00177693v2⟩
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