Record Details

Integrating standard transactions in firm real-time database systems

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Integrating standard transactions in firm real-time database systems
 
Creator THOMAS, S
SESHADRI, S
HARITSA, JR
 
Subject real-time database
concurrency control
 
Description 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 mix 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 realtime 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.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-25T08:47:25Z
2011-12-26T12:57:00Z
2011-12-27T05:46:39Z
2011-08-25T08:47:25Z
2011-12-26T12:57:00Z
2011-12-27T05:46:39Z
1996
 
Type Article
 
Identifier INFORMATION SYSTEMS, 21(1), 3-28
0306-4379
http://dx.doi.org/10.1016/S0306-4379(96)00002-6
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10959
http://hdl.handle.net/10054/10959
 
Language en