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      • Faculty of Engineering
      • Department of Computer Engineering
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      Data replication versus timing constraints in distributed database systems

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      Author
      Ulusoy, Özgür
      Date
      1994-03
      Source Title
      ACM Annual Computer Science Conference
      Publisher
      ACM
      Pages
      296 - 303
      Language
      English
      Type
      Conference Paper
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      Abstract
      In a database system supporting a real-time application, each transaction is associated with a timing constraint, typically in the form of a deadline. Replicated database systems possess desirable features for real-time applications, such as a high level of data availability, and potentially improved response time for queries. On the other hand, multiple copy updates lead to a considerable overhead due to the communication required among the data sites holding the copies. In this paper, we investigate the impact of storing multiple copies of data on satisfying the timing constraints of real-time transactions. A detailed performance model of a distributed database system is employed in evaluating the effects of various workload parameters and design alternatives on the system performance. The performance is expressed in terms of the fraction of satisfied transaction deadlines.
      Keywords
      Performance
      Real time systems
      Scheduling
      Data replication
      Timing constraints
      Distributed database systems
      Permalink
      http://hdl.handle.net/11693/27789
      Published Version (Please cite this version)
      https://dl.acm.org/citation.cfm?doid=197530.197640
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      • Department of Computer Engineering 1368
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