Cart (Loading....) | Create Account
Close category search window
 

A new distributed optimistic concurrency control method and a comparison of its performance with two-phase locking

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

2 Author(s)
Thomasian, A. ; IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA ; Rahm, E.

A distributed optimistic concurrency control (OCC) method followed by locking, such that locking is an integral part of distributed validation and two-phase commit is presented. This OCC method ensures that a transaction failing its validation will not be reexecuted more than once, in general. Furthermore, deadlocks, which are difficult to handle in a distributed environment, are avoided by serializing lock requests. Implementation details are outlined, and the performance of the schemes is compared with distributed two-phase locking (2PL) through a detailed simulation, which incorporates queueing effects at the devices of the computer systems, buffer management, concurrency control, and commit processing. It is shown that in the case of higher data contention levels, the hybrid OCC method allows a much higher maximum transaction throughput than distributed 2PL. The performance of the method with respect to variable-size transactions is reported. It is shown that by restricting the number of restarts to one, the performance achieved for variable-size transactions is comparable to fixed-size transactions with the same mean size

Published in:

Distributed Computing Systems, 1990. Proceedings., 10th International Conference on

Date of Conference:

28 May-1 Jun 1990

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.