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Virtual machine thermal migration method and device

A virtual machine and machine heating technology, applied in the field of virtual machine hot migration, can solve problems such as slow recovery of network traffic, achieve the effect of accelerating recovery, improving recovery speed, and improving user experience

Inactive Publication Date: 2017-12-12
ALIBABA GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a virtual machine hot migration method and device to solve the technical problem of slow recovery of TCP session network traffic during virtual machine hot migration in the prior art, so as to restore the TCP connection traffic as soon as possible and shorten the network traffic jitter. time

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  • Virtual machine thermal migration method and device

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Embodiment Construction

[0034] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, and the following embodiments do not constitute a limitation of the present invention.

[0035] This embodiment takes the live migration of Xen on the Linux operating system as an example, which is also applicable to KVM, VMware's VMotion and Microsoft's Hyper-V Live Migration. In principle, it can be used on any operating system and virtualization software that supports virtual machine live migration accomplish.

[0036] A virtual machine live migration method in this embodiment is realized by a destination physical machine, to be precise, by a flow cache management module (flowcache module) pre-installed on the destination physical machine. like figure 1 As shown, a virtual machine live migration method in this embodiment includes:

[0037] Step S1. Receive the data packet sent to the migrated virtual machine when t...

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Abstract

The invention discloses a virtual machine thermal migration method and a device. A virtual machine is migrated to a destination node physical machine from a source node physical machine. The virtual machine thermal migration method comprises the following steps: receiving a data packet sent to a migrated virtual machine at a mounted stage of the migrated virtual machine on the source node physical machine, and caching the received data packet; when sensing that the migrated virtual machine recovers at the destination node, sending the cached data packet to the migrated virtual machine on the destination node physical machine, thereby accelerating the recovery of the internal TCP of the virtual machine. The device disclosed by the invention comprises a caching unit and a data recovery unit. The method and device disclosed by the invention improve the recovery speed of the TCP connection, the user is more non-perceptive to the thermal migration of the virtual machine, and the user experience is improved.

Description

technical field [0001] The invention belongs to the technical field of virtual machine hot migration, and in particular relates to a virtual machine hot migration method and device. Background technique [0002] Virtual machine live migration: Live migration (Live Migration, also known as dynamic migration, live migration), that is, virtual machine save / restore (Save / Restore): the entire running state of the virtual machine is fully preserved, and at the same time, it can be quickly restored to the original state. There are hardware platforms and even different hardware platforms. After recovery, the virtual machine still runs smoothly, and the user will not notice any difference. At present, the main live migration technologies include XenMotion, VMware's VMotion, and Microsoft's Hyper-V LiveMigration. [0003] Generally speaking, in the process of migrating a virtual machine from one (source) physical machine to another (destination) physical machine, it is necessary to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801H04L12/841H04L29/08H04L29/06H04L1/16H04L1/18
CPCH04L1/1657H04L1/1858H04L47/193H04L47/283H04L67/14G06F9/4856G06F9/5088H04L67/131H04L67/568G06F2009/45595G06F9/45558G06F2009/4557G06F12/0875G06F2009/45583G06F2212/452
Inventor 李靖轩张军伟刘劲松刘泓昊
Owner ALIBABA GRP HLDG LTD