Title: Identifying statistical failure mechanism of web server systems: measurement and reliability analysis

Authors: T. Fujii, T. Dohi

Addresses: Department of Information Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan. ' Department of Information Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima 739-8527, Japan

Abstract: Failure phenomena of web server systems are considered to depend on their workload characteristics. In this paper we focus on the Apache server system and analyse the real access/error logs. Based on parametric and non-parametric statistics, we characterise the web server failure from both theoretical and empirical points of view. As the result, it can be shown that the number of sessions strongly affects to the failure rate property of the Apache server.

Keywords: reliability estimation; web server failure; session-based analysis; request based analysis; goodness-of-fit test; measurement; data analysis; web servers.

DOI: 10.1504/IJBIDM.2010.031285

International Journal of Business Intelligence and Data Mining, 2010 Vol.5 No.2, pp.156 - 171

Available online: 27 Jan 2010 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article