Virtual machine high availability method, device and equipment

Abstract

The invention discloses a virtual machine high availability method, device and equipment, and the method comprises the steps: generating a virtual machine evacuation request for each fault node when afault of a node in a cluster is monitored; determining resource requirements corresponding to the virtual machine evacuation requests one by one; judging whether the available resources in the cluster meet the resource demand corresponding to the current virtual machine evacuation request or not: if so, determining a target migration node corresponding to the current virtual machine evacuation request and a corresponding resource to be used according to the resource demand, migrating the virtual machine on the corresponding fault node to the target migration node, and then performing a corresponding virtual machine recovery operation on the target migration node, or else, fusing the virtual machine evacuation request. Thus, the situation that resource competition is generated when the virtual machines on the fault nodes are evacuated can be avoided, the evacuation request is fused in time when available resources in the cluster are insufficient, and therefore, the stability of the system is guaranteed.

Description

technical field [0001] The present application relates to the technical field of cloud computing, and in particular to a high-availability method, device and equipment for a virtual machine. Background technique [0002] Virtualization is a physical model that can make full use of physical resources and share computing resources through the Internet. It can provide on-demand resources and services, and dynamically allocate resources. As virtualization continues to develop, virtual machines are the central point of technology implementation. How to ensure that in the event of a node failure in the local system, the virtual machines running on it can be evacuated to run on other healthy nodes to ensure that the virtual machines can Continue to accept the management of this system and realize the high availability of virtual machines is a huge challenge for the current virtualization technology. The current high-availability solutions for virtual machines are usually implemen...

AI Technical Summary

Problems solved by technology

However, when a large number of node failures in the environment trigger the evacuation of a large number of virtual machines at the same time, the available resources of the entire system may be insufficient. Even if the virtual machines on the faulty nodes are evacuated, the virtual machines will not be evacuated successfully, and resource contention may occur. In the case of grabbing, in this way, high availability will cause counterproductive effects and seriously affect the stability of the system

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