Cloud platform virtual machine anti-split-brain method and device and medium
A virtual machine and cloud platform technology, applied in the computer field, can solve problems such as virtual machine data damage and file system damage, and achieve the same effect as above and the effect of protecting availability
Pending Publication Date: 2022-05-10
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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Problems solved by technology
"Multi-write" refers to the situation that multiple computing nodes read and write the storage volume of a virtual machine at the same time, which will cause file system damage and virtual machine data damage
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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of this application.
[0047] The core of the present application is to provide a split-brain prevention method, device and medium for a virtual machine on a cloud platform, so as to prevent data damage of the virtual machine caused by "overwriting" to the virtual machine.
[0048] In order to enable those skilled in the art to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the drawings and...
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The invention discloses a split-brain prevention method and device for a cloud platform virtual machine and a medium, and relates to the field of computers. State information of a computing node is obtained, and whether the computing node breaks down or not is judged according to the state information; if yes, calling a back-end storage to create a snapshot for a storage volume of an original virtual machine of the corresponding computing node so as to reserve data of the original virtual machine, and sending the snapshot to the new computing node so that the new computing node can access the snapshot to enable the new virtual machine to recover the data of the original virtual machine. Therefore, in the technical scheme, when the computing node fails, the snapshot which is stored at the rear end and executed on the original virtual machine is provided for the new virtual machine of the new computing node, so that the data logic of the original virtual machine is divided into two parts, the two volumes can be read and written at the same time, the phenomenon that the same volume is written more is avoided, and the data storage efficiency is improved. Therefore, the availability of the virtual machine data is protected.
Description
technical field [0001] The present application relates to the field of computers, in particular to a split-brain prevention method, device and medium for a virtual machine on a cloud platform. Background technique [0002] Among the characteristics of cloud computing platforms, the high availability of cloud hosts (virtual machines) is an effective way to ensure uninterrupted service of cloud host services and improve service quality. When the host machine of the computing node where the virtual machine is located fails, the virtual machine can be recovered on another computing node. However, the failed computing node did not delete the virtual machine or ensure that the virtual machine was shut down, resulting in the same data logic of the virtual machine in the two computing nodes, that is, a split-brain situation in the virtual machine. When a virtual machine has a split brain, the computing node will "overwrite" the data of the virtual machine. "Multi-write" refers to ...
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IPC IPC(8): G06F9/455G06F11/00
CPCG06F9/45558G06F11/004G06F2009/45579
Inventor 魏传程胡玉鹏李红卫
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD