Seventh International Conference on Real-Time Computing Systems and Applications (RTCSA'00) Using importance of transactions and optimistic concurrency control in firm real-time databases Cheju Island, South Korea December 12-December 14 ISBN: 0-7695-0930-4
In a real-time database system, it is difficult to meet all of the timing constraints due to the consistency requirements of the underlying database. However, when the transactions in the system are heterogeneous, they are not all of the same importance-some are of greater importance than others. In this paper, we propose a new protocol called OCC-PDATI (Optimistic Concurrency Control Protocol using Dynamic Adjustment of serialization order and Transaction Importance), which uses information about the importance of the transactions in the conflict resolution. Performance studies of our protocol have been carried out in a prototype real-time database system. The results clearly indicate that OCC-PDATI meets the goal of favoring transactions of high importance.
Index Terms:
real-time systems; concurrency control; timing; transaction processing; database management systems; access protocols; optimistic concurrency control protocol; transaction importance; hard real-time databases; timing constraints; database consistency requirements; heterogeneous transactions; OCC-PDATI; serialization order dynamic adjustment; conflict resolution; performance; prototype database system
Citation:
J. Lindstrom, K. Raatikainen, "Using importance of transactions and optimistic concurrency control in firm real-time databases," rtcsa, pp.463, Seventh International Conference on Real-Time Computing Systems and Applications (RTCSA'00), 2000 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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