计算机科学 ›› 2018, Vol. 45 ›› Issue (5): 317-321.doi: 10.11896/j.issn.1002-137X.2018.05.055
• 交叉与前沿 • 上一篇
车建华,任守纲,余勇,徐焕良
CHE Jian-hua, REN Shou-gang, YU Yong and XU Huan-liang
摘要： 针对虚拟集群节点的可用性评价,提出了一种基于状态转移图的虚拟集群节点可用性模型。首先,通过分析虚拟集群节点的部署方式和运行过程,确立了虚拟集群节点的5种生命周期状态,并阐明了5种生命周期状态之间的转移关系；然后,对于无备用节点和有备用节点两种情况下的虚拟集群节点,分别给出了相应的状态转移图,并建立了一系列的可用性模型。根据实际虚拟集群系统的运行日志,设定所提出的虚拟集群节点可用性模型的参数值,然后进行了多次数值模拟实验。实验结果表明,所提出的虚拟集群节点可用性模型的分析结果与实际可用性水平一致,能够正确地反映虚拟集群节点的可用性规律。
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