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Replicated Database Concurrency Control

  • Reference work entry
Encyclopedia of Database Systems

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Synonyms

Replica and concurrency control

Definition

In a replicated database, there exist several database servers each of them maintaining a (partial) copy of the database. Thus, each logical data item of the database has several physical copies or replicas. As transactions submit their read and write operations on the logical data items, the replica control component of the replicated system translates them into operations on the physical data copies. The concurrency control componentof the replicated system controls the execution order of these operations such that the global execution obeys the desired correctness criteria. For a tightly coupled system with strong consistency requirements, 1-copy-serializability is the standard correctness criterion, requiring that the concurrent execution of transactions on the replicated data has to be equivalent to the serial execution of these transactions over a logical copy of the database. Thus, a global concurrency control strategy is...

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Recommended Reading

  1. Bernstein P.A., Hadzilacos V., and Goodman N. Concurrency control and recovery in database systems. Addison Wesley, Reading, MA, 1987.

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  2. Carey M.J. and Livny M. Conflict detection tradeoffs for replicated data. ACM Trans. Database Syst., 16(4):703–746, 1991.

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  3. Wiesmann M. and Schiper A. Comparison of database replication techniques based on total order broadcast. IEEE Trans. Knowl. Data Eng., 17(4):551–566, 2005.

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Author information

Authors and Affiliations

  1. McGill University, Montreal, QC, Canada

    Bettina Kemme

Authors
  1. Bettina Kemme
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Kemme, B. (2009). Replicated Database Concurrency Control. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_311

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