Revisiting snapshot algorithms by refinement-based techniques

Bruno Andriamiarina, Dominique Méry, Kumar Singh
2014 Computer Science and Information Systems  
The snapshot problem addresses a collection of important algorithmic issues related to the distributed computations, which are used for debugging or recovering the distributed programs. Among the existing solutions, Chandy and Lamport propose a simple distributed algorithm. In this paper, we explore the correct-by-construction process to formalize the snapshot algorithms in distributed system. The formalization process is based on a modeling language Event B, which supports a refinement-based
more » ... cremental development using RODIN platform. These refinement-based techniques help to derive a correct distributed algorithm. Moreover, we demonstrate how this class of other distributed algorithms can be revisited. A consequence is to provide a fully mechanized proof of the distributed algorithms.
doi:10.2298/csis130122007a fatcat:ci6zwtafqndppdkm7uerqzjita