[1] Hou Chunyan, Wang Jinsong, Chen Chen,. Reliability analysis of web server cluster systemsbased on proportional hazards model [J]. Journal of Southeast University (English Edition), 2018, 34 (2): 187-190. [doi:10.3969/j.issn.1003-7985.2018.02.007]

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Reliability analysis of web server cluster systemsbased on proportional hazards model()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

34

Issue:

2018 2

Page:

187-190

Research Field:

Computer Science and Engineering

Publishing date:

2018-06-20

Info

Title:

Reliability analysis of web server cluster systemsbased on proportional hazards model

Author(s):

Hou Chunyan¹;  Wang Jinsong¹;  Chen Chen²

¹School of Computer Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
²College of Computer and Control Engineering, Nankai University, Tianjin 300071, China

Keywords:

web server cluster;  load-sharing;  proportional hazards model;  reliability;  software aging

PACS:

TP399

DOI:

10.3969/j.issn.1003-7985.2018.02.007

Abstract:

An approach for web server cluster(WSC)reliability and degradation process analysis is proposed. The reliability process is modeled as a non-homogeneous Markov process(NHMH)composed of several non-homogeneous Poisson processes(NHPPs). The arrival rate of each NHPP corresponds to the system software failure rate which is expressed using Cox’s proportional hazards model(PHM)in terms of the cumulative and instantaneous load of the software. The cumulative load refers to software cumulative execution time, and the instantaneous load denotes the rate that the users’ requests arrive at a server. The result of reliability analysis is a time-varying reliability and degradation process over the WSC lifetime. Finally, the evaluation experiment shows the effectiveness of the proposed approach.

References:

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Memo

Memo:

Biography: Hou Chunyan(1980—), female, doctor, lecturer, chunyanhou@163.com.
Foundation items: The National Natural Science Foundation of China(No.61402333, 61402242), the National Science Foundation of Tianjin(No.15JCQNJC00400).
Citation: Hou Chunyan, Wang Jinsong, Chen Chen. Reliability analysis of web server cluster systems based on proportional hazards model[J].Journal of Southeast University(English Edition), 2018, 34(2):187-190.DOI:10.3969/j.issn.1003-7985.2018.02.007.

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