再生系统服务可用性的排队模型

2008 IEEE International Conference on Software Reliability Engineering Workshops (ISSRE Wksp) Pub Date : 2008-11-01 DOI:10.1109/ISSREW.2008.5355520

Felix Salfner, K. Wolter

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引用次数: 10

摘要

本文提出了一个排队模型来研究基于时间的系统再生对服务可用性的影响。该模型是一个随机的彩色Petri网，它允许我们使用真实的分布，如对数正态分布。我们定义了服务可用性的度量，并推导了如何从模型中对其进行估计。实验表明，最优恢复间隔和可实现的服务可用性改进显著依赖于系统利用率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A queuing model for service availability of systems with rejuvenation

In this paper we present a queuing model to investigate the effect of time-based system rejuvenation on service availability. The model is formulated as a stochastic colored Petri net, which allows us to use realistic distributions such as the lognormal distribution. We define a metric for service availability and derive how it can be estimated from the model. Experiments show that the optimal rejuvenation interval as well as the achievable service availability improvement depend significantly on system utilization.

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来源期刊

2008 IEEE International Conference on Software Reliability Engineering Workshops (ISSRE Wksp)

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