By Topic

Peak load management for commercial Web servers using adaptive session-based admission control

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)
Cherkasova, L. ; Hewlett-Packard Co., Palo Alto, CA, USA ; Phaal, P.

We use a session-based workload to measure the performance of a commercial Web server. We define a session as a sequence of client requests. An overloaded Web server can experience a severe loss of throughput when measured as the number of completed sessions. Moreover, the overloaded Web server discriminates against longer sessions. Session based admission control (SBAC), introduced in (Cherkasova and Phaal, 1998; 1999), prevents a Web server from becoming overloaded and ensures that longer sessions can be completed. We propose two new adaptive admission control strategies: hybrid and predictive, aiming to optimize the performance of the SBAC mechanism. The hybrid strategy is based on a self-tunable admission control function, which adjusts itself accordingly to variations in traffic loads. It shows improved performance results for workloads with medium to long average session length. The predictive strategy estimates and predicts the number of new sessions it can accept and still guarantee processing of all future session requests. It consistently shows the best performance results for different workloads and different traffic loads.

Published in:

System Sciences, 2001. Proceedings of the 34th Annual Hawaii International Conference on

Date of Conference:

6-6 Jan. 2001