Volume 7 Number 4 (Apr. 2012)
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JSW 2012 Vol.7(4): 849-855 ISSN: 1796-217X
doi: 10.4304/jsw.7.4.849-855

The Effect of Real-valued Negative Selection Algorithm on Web Server Aging Detection

Yiwen Liang, Huan Yang, Jun Fu, and Chengyu Tan
School of Computer Science, Wuhan University, Wuhan, China

Abstract—Several researchers have reported the fact that web server systems executing continuously for a long time show a degradation of their performance, and/or an increased occurrence rate of hang/crash failures. This phenomenon has been called ’web server aging’. To avoid this problem, it becomes an important issue to detect web server aging in web server maintenance. Existing technologies depending on aging samples succeed in detecting known web server aging, but fail to detect novel aging because of the nondeterministic nature of the web server aging. Given that normal samples are much easier to acquire from running web server than aging samples, this paper proposed an immune-inspired real-valued negative selection algorithm to detect previously unseen web server aging, it only needs normal samples to train detectors that have the ability to classify a novel sample as web server aging or not. The basis of the detection is aging causes performance deviation from the normal state. Preliminary experimental results showed that the method could improve the performance of the detection of novel web server aging without responding to normal status.

Index Terms—Real-valued Negative Selection Algorithm (RNSA); Artificial Immune System (AIS);Web Server Aging Detection; Software Aging

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Cite: Yiwen Liang, Huan Yang, Jun Fu, Chengyu Tan , Aolin Liu, Shiwen Zhu, "Real-valued Negative Selection Algorithm (RNSA); Artificial Immune System (AIS);Web Server Aging Detection; Software Aging," Journal of Software vol. 7, no. 4, pp. 849-855, 2012.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly 
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, CNKIGoogle Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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