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Virtual machine hot upgrade method, host device and storage medium

A virtual machine and hot upgrade technology, applied in the computer field, can solve the problems of long total migration time, low hot upgrade efficiency, and high resource consumption, and achieve the effects of saving resources, reducing time consumption, and improving hot upgrade efficiency

Active Publication Date: 2022-05-06
ALIBABA CLOUD COMPUTING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the process of virtual machine hot migration, the data in the virtual machine memory needs to be migrated from one host to another, which consumes more resources, takes a long time to migrate, and has low hot upgrade efficiency

Method used

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  • Virtual machine hot upgrade method, host device and storage medium
  • Virtual machine hot upgrade method, host device and storage medium
  • Virtual machine hot upgrade method, host device and storage medium

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. 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 scope of protection of this application.

[0019] VM hot upgrade refers to the process of online VM upgrade without the user noticing that the VM service is suspended. In practical applications, VM hot upgrade may be caused by patching or release of a new version, or may be caused by hardware damage of the host device where the VM resides. For the situation where the hardware damage of the ho...

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Abstract

Embodiments of the present application provide a virtual machine hot upgrade method, a host device, and a storage medium. In the embodiment of the present application, aiming at the software upgrade requirements faced by the virtual machine, the hot upgrade of the virtual machine is completed on the same host device by upgrading the process of the virtual machine. Since the migration between host devices is not involved, heat can be saved. The resources consumed by the upgrade are conducive to improving the efficiency of hot upgrade; in addition, by adding a lock mark to the memory occupied by the initial process to lock the memory from being released, so that the memory can be allocated to the new process after the new process is recreated. Memory sharing, without memory copy, only needs to migrate the running state, which can further save resources, reduce the time consumed by hot upgrade, and further improve the efficiency of hot upgrade.

Description

technical field [0001] The present application relates to the field of computer technology, and in particular to a virtual machine hot upgrade method, a host device and a storage medium. Background technique [0002] A virtual machine (Virtual Machine, VM), a resource isolation means, can implement resource isolation such as computing memory, storage, and network in a computer. Like physical machines, virtual machines also require upgrades. Live migration is a hot upgrade solution that can migrate virtual machine resources from one host to another without the user's awareness. [0003] However, during the live migration process of the virtual machine, data in the memory of the virtual machine needs to be migrated from one host to another host, which consumes a lot of resources, takes a long time for the total migration, and has low hot upgrade efficiency. Contents of the invention [0004] Various aspects of the present application provide a virtual machine hot upgrade m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/65G06F9/455
CPCG06F8/65G06F9/45558
Inventor 朱延海王磊
Owner ALIBABA CLOUD COMPUTING LTD
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