Virtual machine migration method and device

Abstract

The invention provides a virtual machine migration method and device. The virtual machine migration method includes the steps that historical resource utilization data of physical machines are obtained, alarm data greater than preset standard thresholds and preset times are determined and are input into an autoregressive model adopted in a time sequence trend prediction method to obtain prediction values, the migrated probability of virtual machines in the alarm physical machines with the alarm data is obtained if the prediction values are greater than the preset thresholds, and the virtual machines to be migrated are selected based on the migrated probability and are migrated. The interference of other external complicated factors can be effectively reduced, SLA can be guaranteed, unnecessary virtual machine migration operation caused by explosive rise of the virtual machine resource usage rate can be avoided, the virtual machines in the alarm physical machines are migrated before overload of the alarm physical machines occurs, continuous uninterrupted normal operation of the alarm physical machines is ensured, the migration cost of the virtual machines can be effectively reduced, the resource utilization rate of the alarm physical machines after migration of the virtual machines can be ensured, and resource waste can be avoided.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a virtual machine migration method and device. Background technique [0002] With the development of virtualization technology and the popularization of the concept of cloud computing, more and more users choose to complete their work tasks by renting computing resources from the data center instead of purchasing physical devices themselves. In the prior art, the CPU utilization rate of each physical machine is generally monitored, and if the CPU utilization rate of a physical machine is found to exceed a preset threshold, the virtual machine with the largest load in the physical machine is migrated to another physical machine for further processing. Virtual machine migration to ensure user service quality and improve resource utilization. By monitoring the CPU utilization of each physical machine to determine which virtual machine in the physical machine to migrate, only the ...

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Problems solved by technology

[0003] In view of this, the embodiment of the present invention provides a virtual machine migration method and device to solve the problem that in the prior art, only the single monitoring target of CPU utilization is considered, and the SLA cannot be guaranteed due to the interference of other external complex factors. Before the internal virtual machine is migrated, the physical machine has been overloaded and cannot continue to ensure the normal operation of the system. Migrating the virtual machine within the physical machine after only one judgment may be caused by the explosive increase in the resource usage of the virtual machine. Unnecessary virtual machine migration operations are caused. Migrating the virtual machine with the largest load in the physical machine to other physical machines will increase the migration cost of the virtual machine on the one hand, and on the other hand may make the resource utilization of the overloaded physical machine unbalanced after migration. Low, resulting in waste of resources

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