Title :
Statistical Failure Analysis of a Web Server System
Author :
Fujii, Toshiya ; Dohi, Tadashi
Author_Institution :
Dept. of Inf. Eng., Hiroshima Univ., Higashi-Hiroshima
Abstract :
Failure phenomena of Web server systems are considered to depend on their workload characteristics. In this paper we focus on an Apache server system and analyze the real access/error logs. Based on parametric and non-parametric statistics, we characterize 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 :
Internet; data analysis; file servers; statistical analysis; system recovery; Apache server system; Web server system; error log data analysis; nonparametric statistic; statistical failure analysis; Availability; Data analysis; Failure analysis; Information analysis; Information security; Parametric statistics; Reliability engineering; Statistical analysis; Throughput; Web server; Kolmogorov-Smirnov test; information criterion; measurement; nonparametric statistics; parametric statistics; reliability estimation; session-based analysis; web server failure;
Conference_Titel :
Availability, Reliability and Security, 2009. ARES '09. International Conference on
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-3572-2
Electronic_ISBN :
978-0-7695-3564-7
DOI :
10.1109/ARES.2009.122
