NDLI: Modeling Perfect and Minimal Rejuvenation for Client Server Systems with Heterogeneous Load

Content Provider	IEEE Xplore Digital Library
Author	Koutras, V.P. Platis, A.N.
Copyright Year	2008
Description	Author affiliation: Dept. of Financial & Manage. Eng., Univ. of the Aegean, Chios, Greece (Koutras, V.P.; Platis, A.N.)
Abstract	In the present study a client-server system is considered, which experiences resource degradation as clients' requests increase. Software rejuvenation is performed in order to counteract resource exhaustion. Two different levels of rejuvenation actions are implemented, perfect, and minimal. Moreover the concept of a failed rejuvenation is introduced to model the fact that rejuvenation due to some circumstances cannot be accomplished. As the load of such a system varies from hour to hour but reveals a cyclic behavior from day to day, different rejuvenation policies for each period of the day are proposed using a cyclic non-homogeneous Markov (CNHM) model. As a measure of performance, the steady-state expected downtime cost is considered. Additionally, to set off the need of CNHM modeling, the system is also modeled by a Homogeneous Markov Chain (HMC) and the performance results are compared.
Starting Page	95
Ending Page	103
File Size	330999
Page Count	9
File Format	PDF
ISBN	9780769534480
DOI	10.1109/PRDC.2008.22
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-15
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Client server systems Degradation Client-server systems Software performance Costs Aging Software maintenance Financial management Engineering management Steady-state downtime cost client-server system software rejuvenation Cyclic Non-Homogeneous Markov model performance
Content Type	Text
Resource Type	Article

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