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Replicated Database Concurrency Control

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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 PA, Hadzilacos V, Goodman N. Concurrency control and recovery in database systems. Reading: Addison Wesley; 1987.

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  2. Carey MJ, Livny M. Conflict detection tradeoffs for replicated data. ACM Trans Database Syst. 1991;16(4):703–46.

    Article  Google Scholar 

  3. Wiesmann M, Schiper A. Comparison of database replication techniques based on total order broadcast. IEEE Trans Knowl Data Eng. 2005;17(4):551–66.

    Article  Google Scholar 

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Author information

Authors and Affiliations

  1. School of Computer Science, McGill University, Montreal, QC, Canada

    Bettina Kemme

Authors
  1. Bettina Kemme
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Corresponding author

Correspondence to Bettina Kemme .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, GA, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, ON, Canada

    M. Tamer Özsu

Section Editor information

  1. Dep. of Inf. Systems, Westf. Wilhelms-Univeristät, Münster, Germany

    Gottfried Vossen

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Kemme, B. (2018). Replicated Database Concurrency Control. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_311

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