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A backup mechanism with concurrency control for multilevel secure distributed database systems

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9 Author(s)
Veluchandhar ; Dept. of Comput. Sci., Bharathidasan Univ., Tiruchirapalli ; Jayakumar, R.V. ; Muthuvel, M. ; Balasubramanian, K.
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The concurrency control in distributed database management systems is an important research problem. Several concurrency control algorithms have been proposed for secure distributed database systems, and several have been and are being implemented. Most of the concurrency control algorithms are the variations of the following basic techniques: Two-Phase Locking, Timestamp Ordering and Serialization Graph Testing. These algorithms may not be providing accurate performance model. In this paper, it is proposed an algorithm model to enhance the performance of concurrent transactions using backup mechanism with multilevel security for distributed database. This model reduces the data access time and wait time for every transaction monitored by the subquery analyzer. Simulation study reveals that the effective enhancement of performance for concurrent transactions with different levels of security.

Published in:

Digital Information Management, 2008. ICDIM 2008. Third International Conference on

Date of Conference:

13-16 Nov. 2008

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