Availability Analysis and Improvement of Software Rejuvenation Using Virtualization
Availability Analysis and Improvement of Software Rejuvenation Using Virtualization
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发表时间：
2007
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通讯作者：
T. Thein;S. Chi;Jong Sou Park
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作者：
T. Thein;S. Chi;Jong Sou Park
关键业务应用程序服务器的可用性是一个极其重要的问题，受到了工业界和学术界的特别关注。为了提高应用服务器的可用性，我们对虚拟化技术和软件恢复进行了研究，采用主动容错的方法来应对软件老化问题。我们提出了马尔可夫模型来分析这种持续运行的应用程序的可用性，并根据模型中的参数来表达恢复过程中的可用性、停机时间和停机时间成本。我们的结果表明，我们的方法是一种实用的方法，可以确保即使是严重老化的应用程序的不间断可用性和优化性能。
Availability of business-critical application servers is an issue of paramount importance that has received special attention from the industry and academia. To improve the availability of application servers, we have conducted a study of virtualization technology and software rejuvenation that follows a proactive fault-tolerant approach to counter act the software aging problem. We present Markov models for analyzing availability in such continuously running applications and express availability, downtime and downtime costs during rejuvenation in terms of the parameters in the models. Our results show that our approach is a practical way to ensure uninterrupted availability and optimize performance for even strongly aging applications.