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.
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|
|Additional Information:||The copyright of this article belongs to Elsevier Science Ltd.|
|Keywords:||Real Time Database;Concurrency Control|
|Department/Centre:||Division of Information Sciences > Supercomputer Education & Research Centre|
|Date Deposited:||30 Aug 2004|
|Last Modified:||19 Sep 2010 04:14|
Actions (login required)