Scheduling Real-time Transactions
Report ID: TR-129-87Author: Garcia-Molina, Hector / Abbott, Robert K.
Date: 1987-12-00
Pages: 11
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Abstract:
Scheduling transactions with real-time requirements presents many new problems. In this paper we discuss solutions for two of these problems: what is a reasonable method for modeling real-time constraints for database transactions? Traditional hard real-time constraints (e.g., dead-lines) may be too limited. Many transactions have soft deadlines and a more flexible model is needed to capture these soft time constraints. The second problem we address is scheduling. Time constraints add a new dimension to concurrency control. Not only must a schedule be serializable but it also should meet the time constraints of all the transactions in the schedule.