We are currently experiencing intermittent issues impacting performance. We apologize for the inconvenience.
By Topic

MIRROR: a state-conscious concurrency control protocol for replicated real-time databases

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Ming Xiong ; Dept. of Comput. Sci., Massachusetts Univ., Amherst, MA, USA ; Ramamritham, K. ; Haritsa, J. ; Stankovic, J.A.

Data replication can help database systems meet the stringent temporal constraints of current time-critical applications, especially Internet-based services. A prerequisite, however, is the development of high-performance concurrency control mechanisms. We present here a new CC protocol called MIRROR (Managing Isolation in Replicated Real-time Object Repositories), specifically designed for firm-deadline applications operating on replicated real-time databases. MIRROR augments the optimistic two-phase locking (O2PL) algorithm developed for non-real-time databases with a novel and easily implementable state-based conflict resolution mechanism to fine-tune the real-time performance. A simulation-based study of MIRROR's performance against the real-time versions of a representative set of classical protocols shows that (a) the relative performance characteristics of replica concurrency control algorithms in the real-time environment could be significantly different from their performance in a traditional (non-real-time) database system, (b) compared to locking based protocols, MIRROR provides the best performance in replicated environments for real-time applications, and (c) MIRROR's conflict resolution mechanism works almost as well as more sophisticated (and difficult to implement) strategies

Published in:

Advance Issues of E-Commerce and Web-Based Information Systems, WECWIS, 1999. International Conference on

Date of Conference:

Aug 1999