使用混合模型预测Web服务器中的资源消耗

doi:10.11896/j.issn.1002-137X.2016.10.008

摘要/Abstract

摘要： 软件老化是一种在长期运行的软件系统中观察到的软件异常状态,如性能下降、暂停服务,甚至失效等现象。软件抗衰技术被用来处理软件老化带来的问题:停止软件应用、移除错误的因素、重新启动应用。对于软件老化和抗衰来说,如何准确地预测老化系统中的资源消耗并且找到一个合适的时机执行抗衰是一个关键的问题。针对该问题,提出一种混合模型方法用于资源消耗预测,并且提出多门限值时间段抗衰算法用于抗衰时机的选择。实验结果表明,混合模型方法在资源消耗预测上要好于其他模型,并且提出的抗衰算法要好于单一的门限值算法。

关键词: 软件老化,软件抗衰,失效,混合模型

Abstract: Software aging is a phenomenon that the state of software degrades and leads to performance degradation,hang/crash failures or both in a long running software application.Software rejuvenation,which involves occasionally stopping the software application,removing the cumulative error factors and then rebooting the application in a clean environment,is used to counteract software aging problems.For software aging and rejuvenation problems,it is a key problem that how to accurately forecast the resource consumption of aging system and find a proper timing to execute rejuvenation.In this paper,a methodology of hybrid model was proposed for resource consumption forecast and a rejuvenation algorithm of time slot in multi-threshold values was given.The experiment results show that the hybrid model is superior to other models in resource consumption farcasting of an IIS Web server and the proposed rejuvenation algorithm is better than the single threshold algorithm.

Key words: Software aging,Software rejuvenation,Failure,Hybrid model

闫永权,郭平. 使用混合模型预测Web服务器中的资源消耗[J]. 计算机科学, 2016, 43(10): 47-52. https://doi.org/10.11896/j.issn.1002-137X.2016.10.008

YAN Yong-quan and GUO Ping. Predicting Resource Consumption in Web Server Using Hybrid Model[J]. Computer Science, 2016, 43(10): 47-52. https://doi.org/10.11896/j.issn.1002-137X.2016.10.008

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