Performance modelling of asynchronous replica distribution technique on distributed database systems

Zarina, Mohamad and Aznida Hayati, Zakaria@Mohamad and Wan Suryani, Wan Awang (2007) Performance modelling of asynchronous replica distribution technique on distributed database systems. International Journal of Computer Mathematics, 84 (2). pp. 183-192. ISSN 00207160

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Abstract

In distributed database systems, replication is the most widely used approach to offering high data availability, increased fault tolerance, and improved scalability of the overall system . However, the primary concern with this technique is not only to provide high availability and reliability but also to boost the performance of data replication, i.e. to minimize response time an d maximize through put. We propose an analytical model for asynchronous replication technique (ART) by copying the data an d replicating it to remote sites on a continuous basis. A remote copy of the data is created at a subsequent time after the primary copy is updated. The model is based on the M/G/1 queuing system by taking into account intersite communication between sites in the systems.

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