Concurrency control performance modeling: alternatives and implications
ACM Transactions on Database Systems (TODS)
Priority Scheduling of Transactions in Distributed Real-TimeDatabases
Real-Time Systems
Computer Networks and Systems: Queueing Theory and Performance Evaluation
Computer Networks and Systems: Queueing Theory and Performance Evaluation
Transaction Processing: Concepts and Techniques
Transaction Processing: Concepts and Techniques
Evaluation of concurrency control strategies for mixed soft real-time database systems
Information Systems - Databases: Creation, management and utilization
An adaptive scheduler for distributed real-time database systems
Information Sciences: an International Journal
Communications of the ACM - Service-oriented computing
An Evaluation of Real-Time Transaction Services in Web Services E-Business Systems
APWeb/WAIM '09 Proceedings of the Joint International Conferences on Advances in Data and Web Management
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Web services oriented computing is a hot topic for many e-commerce applications recently. It dramatically speeds up the application process and becomes more agile in responding to changing business needs. In this paper, we study the concurrency control problems among interleaved transactions for web services oriented e-commerce. We propose a new method called two-phase locking with adjustable slack time (2PL-AST) based on a high priority mechanism, which resolves the concurrent data access for both real-time and non-real-time support operations. The design issue aims to meet the deadline requirements of real-time transactions and minimize the response time of non-real-time transactions in the web services family at the same time. Experiments are conducted to evaluate the performance under different concurrency control protocols.