Bandwidth-limited optimal deployment of eventually-serializable data services

Laurent Michel, Pascal Van Hentenryck, Elaine Sonderegger, Alexander Shvartsman, Martijn Moraal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Providing consistent and fault-tolerant distributed object services is among the fundamental problems in distributed computing. To achieve fault-tolerance and to increase throughput, objects are replicated at different networked nodes. However, replication induces significant communication costs to maintain replica consistency. Eventually-Serializable Data Service (ESDS) has been proposed to reduce these costs and enable fast operations on data, while still providing guarantees that the replicated data will eventually be consistent. This paper revisits ESDS instances where bandwidth constraints are imposed on segments of the network interconnect. This class of problems was shown to be extremely challenging for both Mixed Integer Programming (MIP) and for Constraint Programming (CP), some instances requiring hours of computation time. The paper presents an improved constraint programming model, a constraint-based local search model that can obtain high-quality solutions quickly and a local search/constraint programming hybrid. The experimental results indicate that the resulting models significantly improve the state of the art.

Original languageEnglish (US)
Title of host publicationIntegration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems - 6th International Conference, CPAIOR 2009, Proceedings
Pages193-207
Number of pages15
DOIs
StatePublished - 2009
Externally publishedYes
Event6th International Conference on Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems, CPAIOR 2009 - Pittsburgh, PA, United States
Duration: May 27 2009May 31 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5547 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference6th International Conference on Integration of AI and OR Techniques in Constraint Programming for Combinatorial Optimization Problems, CPAIOR 2009
Country/TerritoryUnited States
CityPittsburgh, PA
Period5/27/095/31/09

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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