云环境下基于Agent协商的宿主机容错策略

摘要

云计算平台中大量使用了廉价的设备,使得宿主机出现故障概率大大增加.针对因宿主机故障而导致的虚拟机实例失效问题,提出一种宿主机容错策略.通过对宿主机集群分组和对宿主机进行Agent建模,在每个小组内利用Agent协商来快速重建虚拟机实例.仿真实验表明,所提出的策略能够自动重建失效的虚拟机实例,提出的容错策略在耗时上小于其他策略.%In the cloud computing platform, a large number of low-cost devices are used, which greatly increases the failure probability of host computers.To deal the problem of virtual machine instance failure caused by host failure,a kind of fault tolerant strategy of host is proposed.The virtual machines are rebuilt in each group using Agent negotiation by clustering, grouping and Agent modeling the host computers.The simulation experiment shows that the proposed method is able to rebuild the disabled virtual machine instances automatically, and take less time than other strategies.