Method and device for hot migration of virtual machine
A virtual machine and hot migration technology, applied in the computer field, can solve problems such as performance loss
Active Publication Date: 2018-06-19
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0006] The first solution is to rely on hardware consistency to ensure performance and compatibility features, while the second solution is to consider the needs of clusters with serious heterogeneity, and this solution has a serious loss in performance
Method used
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[0029] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.
[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0031] figure 1 An exemplary system architecture 100 to which embodiments of the method for live migration of a virtual machine or the apparatus for live migration of a virtual machine of the present application can be applied is shown.
[0032] Such as figure 1 As shown, ...
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The present application discloses a method and a device for live migrating a virtual machine. A specific implementation of the method includes: receiving a request for live migration of a virtual machine to a target physical machine, obtaining the CPU information of the source physical machine and the CPU information of the target physical machine; determining the CPU instruction set architecture and Whether the CPU instruction set architecture of the target physical machine is compatible; when compatible, then further determine whether the CPU characteristics of the source physical machine and the CPU characteristics of the target physical machine are compatible; when not compatible, then further determine the source physical machine and the target physical machine whether the incompatible CPU features between the machines are in the preset list; in response to determining that the incompatible CPU features are in the preset list, hot-migrate the virtual machine from the source physical machine to the target physical machine. This implementation method realizes the dynamic migration of virtual machines under heterogeneous clusters. The virtual machines that can be dynamically migrated are no longer limited to the same physical CPU model, and as little performance as possible is sacrificed in exchange for compatibility.
Description
technical field [0001] The present application relates to the field of computer technology, in particular to the field of Internet technology, and in particular to a method and device for live migration of a virtual machine. Background technique [0002] Cloud computing, especially products that provide virtual machine services, as the scale of physical machines continues to expand, the purchase batches of physical machines are also different. Under the same cluster, there are many types of physical machines. In the implementation of virtualization, memory and Disk virtualization has little impact on physical machines, but different CPU (Central Processing Unit, central processing unit) types, when virtual machines need to be hot migrated across physical machines (also called live migration, live migration, that is, Save / restore usually saves the running state of the entire virtual machine, and can quickly restore to the original hardware platform or even a different hardwar...
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IPC IPC(8): G06F9/455
CPCG06F9/45558G06F2009/4557G06F9/5044G06F9/5077G06F9/4862
Inventor 柴稳张宇
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD