Thomas, Shiby and Seshadri, S and Haritsa, Jayant R (1996) Integrating standard transactions in firm real-time database systems. In: Information Systems, 21 (1). pp. 3-28.
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Abstract
Real-time database systems are designed to handle workloads where transactions have completion deadlines and the goal is to meet these deadlines. However, many real-time database environments are characterized by workloads that are a of real-time and standard (non- real-time) transactions. Unfortunately, the system policies used to meet the performance goals of real-time transactions often work poorly for standard transactions. In particular, optimistic concurrency control algorithms are recommended for real-time transactions, whereas locking-based protocols are suited for standard transactions. In this paper, we present a new database system architecture in which real-time transactions use optimistic concurrency control and, simultaneously, standard transactions use locking. We prove that our architecture maintains data integrity and show, through a simulation study, that it provides significantly improved performance for the standard transactions without diminishing the real-time transaction performance. We also show, more generally, that the proposed architecture correctly supports the co-existence of any group of concurrency control algorithms that adhere to a standard interface.
Item Type: | Journal Article |
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Publication: | Information Systems |
Publisher: | Elsevier Science Ltd. |
Additional Information: | The copyright of this article belongs to Elsevier Science Ltd. |
Keywords: | Real Time Database;Concurrency Control |
Department/Centre: | Division of Interdisciplinary Sciences > Supercomputer Education & Research Centre |
Date Deposited: | 30 Aug 2004 |
Last Modified: | 19 Sep 2010 04:14 |
URI: | http://eprints.iisc.ac.in/id/eprint/1065 |
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