CN107544841A - Live migration of virtual machine method and system - Google Patents
Live migration of virtual machine method and system Download PDFInfo
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- CN107544841A CN107544841A CN201610506753.9A CN201610506753A CN107544841A CN 107544841 A CN107544841 A CN 107544841A CN 201610506753 A CN201610506753 A CN 201610506753A CN 107544841 A CN107544841 A CN 107544841A
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- network interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a kind of live migration of virtual machine method and system, this method includes：By the source virtual machine on source server by bridging the first network interface card of generation, and the first network interface card is bound with the second network interface card gone out using single input/output virtualization SR IOV virtual technologies；Source server is connected by being established between the first network interface card and destination server；Source server sends virtual machine memory data by the first network interface card to destination server, to generate target virtual machine according to virtual machine memory data on destination server so as to complete the thermophoresis between source and target server.The invention has the advantages that：The network interface card of generation during live migration of virtual machine using bridge joint carries out data interaction, can stablize and realize live migration of virtual machine, allows the interruption of the imperceptible virtual machine service of user, and the scope of migration is extended in whole network.
Description
Technical field
The present invention relates to network server apparatus technical field of virtualization, a kind of method of live migration of virtual machine of specific design
And system.
Background technology
Migration in the environment of virtualization is divided into static migrating and dynamic migration.Live migration of virtual machine, be called dynamic migration,
Real-time migration.It is in transition process for dynamic migration, the shortcomings that static migrating maximum, there is obvious a period of time visitor
Service in the machine of family is unavailable, and therefore, static migrating is in huge visit capacity and the high network of requirement of real-time with very
More limitations.Dynamic migration in load balancing, release hardware-dependent, save the energy, realize remotely migrating on client geographic position
Etc. play an important roll.
In server virtualization environment, on a virtual machine, virtual machine is run on the server business load.SR-IOV
(Single-Root I/O Virtualization, single I/O virtualization) technology, it is a kind of I/O virtualization technologies, is utilized
The technology can be in a physics PCIE (PCI-Express, i.e. Peripheral Component Interconnect-
Express, Peripheral Component Interconnect extension standards) many virtual PCIE devices with identical function are fictionalized in equipment.Each
Virtual PCIE device has independent memory headroom, and the function example with virtual PCIE device is referred to as VF (Virtual
Function), each VF is a virtual machine service, and the exchange of message is directly carried out between virtual machine and VF, it is not necessary to main
The intervention of machine, therefore business efficiency high.
In the server apparatus using SR-IOV, because VF can not be migrated in different ethernet devices, make
Obtaining the thermophoresis of virtual machine can not realize.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem.
Therefore, it is an object of the present invention to propose a kind of live migration of virtual machine method, for wanting for server apparatus
While seeking application service normal operation in guarantee client computer, client computer is allowed to be migrated between different hosts.
To achieve these goals, embodiment of the invention discloses that a kind of live migration of virtual machine method, including following step
Suddenly：By the source virtual machine on source server by bridging the first network interface card generated, and first network interface card is single defeated with using
Enter/export the second network interface card that virtualization SR-IOV virtual technologies go out to be bound, wherein, the source server passes through described second
Network interface card is connected with destination server；The source server passes through the company of foundation between first network interface card and the destination server
Connect；The source server sends virtual machine memory data by first network interface card to the destination server, so as to described
Target virtual machine is generated so as to complete in the source server and described according to the virtual machine memory data on destination server
Thermophoresis between destination server, wherein, the source server is sent by first network interface card to the destination server
During virtual machine memory data, the link between the source server, second network interface card and the destination server disconnects.
Live migration of virtual machine method according to embodiments of the present invention, bridge joint generation is used during live migration of virtual machine
Network interface card carries out data interaction, can stablize and realize live migration of virtual machine, allows the interruption of the imperceptible virtual machine service of user, again will
The scope of migration is extended in whole network.
In addition, live migration of virtual machine method according to the above embodiment of the present invention, can also have technology additional as follows
Feature：
Further, virutal machine memory is sent to the destination server by first network interface card in the source server
Also include after data：Delete the source virtual machine.
Further, it is further comprising the steps of when being bound to first network interface card and second network interface card：Institute
State and automatic redundant pattern is set on source server, the automatic redundant pattern is used in first network interface card or second network interface card
Place link when disconnecting, automatically switch to link where another piece of network interface card；Wherein, the source server passes through described
When one network interface card is to destination server transmission virtual machine memory data, the source server breaks according to the automatic redundant pattern
Where opening second network interface card while link, the link where first network interface card that automatically switches carries out data interaction.
Further, realize that the heat between the source and target server is moved using driver MacVTap
Move.
Further, when being bound to first network interface card and second network interface card, in addition to：Configure described second
The IP address and physical address MAC (Medium Access Control) of network interface card.
It is an object of the present invention to propose a kind of live migration of virtual machine system, the requirement for server apparatus ensures
In client computer while application service normal operation, client computer is allowed to be migrated between different hosts.
To achieve these goals, embodiment of the invention discloses that a kind of live migration of virtual machine system, including source service
Device, the source server include：Source virtual machine；First network interface card, first network interface card are generated by bridging；Second network interface card, it is described
Second network interface card is using single input/output virtualization SR-IOV virtual technology generations；Binding module, for by first network interface card
Bound with second network interface card；Wherein, before the source and target server carries out thermophoresis, the source server
It is connected by second network interface card with destination server；When the source server and the destination server carry out thermophoresis, institute
State source server by first network interface card by virtual machine memory data to the destination service, so as in the destination server
On target virtual machine generated so as to completing in the source server and the destination server according to the virtual machine memory data
Between thermophoresis.
Live migration of virtual machine system according to embodiments of the present invention, is given birth to during live migration of virtual machine using bridging technology
Into network interface card carry out data interaction, can stablize and realize live migration of virtual machine, allow the interruption of the imperceptible virtual machine service of user,
The scope of migration is extended in whole network again.
In addition, live migration of virtual machine system according to the above embodiment of the present invention, can also have technology additional as follows
Feature：
Further, the source server is additionally operable to complete to the destination server transmission virtual machine memory data
The source virtual machine is deleted after finishing.
Further, the source server is additionally operable to set automatic redundant pattern, and the automatic redundant pattern is used in institute
When stating the place link of the first network interface card or second network interface card and disconnecting, link where another piece of network interface card is automatically switched to；Institute
State source server and be additionally operable to receive the place link that second network interface card is cut off after the cut-out instruction of external equipment transmission, and according to
The automatic redundant pattern link where first network interface card that automatically switches when the place link of second network interface card disconnects enters
Row data interaction.
Further, realize that the heat between the source and target server is moved using driver MacVTap
Move.
Further, the source server is additionally operable to when being bound to first network interface card and second network interface card,
Configure the IP address and physical address MAC of second network interface card.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of the live migration of virtual machine method of the embodiment of the present invention；
Fig. 2 is the structured flowchart of the live migration of virtual machine of the embodiment of the present invention；
Fig. 3 is the schematic diagram of the thermomigration process of one embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint are relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
With reference to following description and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, to represent to implement the implementation of the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
Embodiment includes all changes, modification and the equivalent fallen into the range of the spirit and intension of attached claims.
Live migration of virtual machine method and thermophoresis system according to embodiments of the present invention are described below in conjunction with accompanying drawing.
Fig. 1 is the flow chart of the live migration of virtual machine method of the embodiment of the present invention.
Fig. 1 is refer to, a kind of live migration of virtual machine method, is comprised the following steps：
By the source virtual machine on source server by bridging the first network interface card of generation, and by the first network interface card and use SR-IOV
The second network interface card that virtual technology goes out is bound.Wherein, before source and target server carries out thermophoresis, source server leads to
The second network interface card is crossed to be connected with destination server.Specifically, by the source virtual machine on source server by bridging the first net generated
Card.The second network interface card that binding module is gone out to the first network interface card and using SR-IOV virtual technologies is loaded on source server to tie up
It is fixed, and binding module is configured, including configuration of IP, MAC, specified network interface card bound etc..Source and target server
Before carrying out thermophoresis, source server is connected by the second network interface card with destination server.It is automatic redundant pattern to select binding module
(equivalent to master-slave back-up), i.e., when link disconnects where some network interface card, automatically switch to another piece of network interface card link.
Source server is connected by being established between the first network interface card and destination server.
Virtual machine memory data is carried out thermophoresis by source server by the first network interface card to destination service, to be taken in target
Target virtual machine is generated so as to complete the heat between source and target server according to virtual machine memory data on business device
Migration.Wherein, source server sends virtual machine memory data process (i.e. thermophoresis by the first network interface card to destination server
Journey) in, the link between source server, the second network interface card and destination server disconnects.Specifically, is broken in thermomigration process
Link where two network interface cards, enable link where the first network interface card.The virtual machine configuration information of transmission is not the XML in virtual machine catalogue
Configuration file, the only information in registration table.Virtual machine memory data transmission process be：Virtual machine is locked in source host
Internal memory, and the partial information is sent to destination host.Virtual machine continues to run with main frame, while opens up on the source host new
Region of memory be client service, the part only preserves the content of client computer change from this moment on.By the portion of these changes
Point send destination host to, until content change of the source server internal memory about virtual machine is in a minimum scope, or
When internal storage data does not change, after (aforesaid operations ensure that thermophoresis) Heat transmission is completed in virtual-machine data transmission, in mesh
Target virtual machine is established according to virtual machine memory data in mark server, the MAC for changing VF is source server source virtual machine
MAC。
In one embodiment of the invention, sent in source server by the first network interface card to destination server in virtual machine
Also include after deposit data：Source virtual machine is deleted, to save server resource.
In one embodiment of the invention, following step is also included when being bound to the first network interface card and the second network interface card
Suddenly：Automatic redundant pattern is set on the source server, the automatic redundant pattern is used in first network interface card or described
When the place link of second network interface card disconnects, link where another piece of network interface card is automatically switched to.When source server passes through first
When network interface card is to destination server transmission virtual machine memory data, source server is according to where automatic redundant pattern disconnects the second network interface card
While chain, the link where the first network interface card that automatically switches carries out data interaction.
In one embodiment of the invention, realized using driver MacVTap and taken in the source server and target
Thermophoresis between business device.MacVTap is a new device driver, it is intended to simplifies the bridge coil of virtualization.One
MacVTap terminals (endpoint) are a character devices.It is source to create MacVTap and change MacVTap MAC
MAC after bonding (binding).
In one embodiment of the invention, when being bound to the first network interface card and the second network interface card, in addition to：Configuration the
The IP address and physical address MAC of two network interface cards.
By the live migration of virtual machine method of the embodiment of the present invention, the generation of bridge joint is used during live migration of virtual machine
Network interface card carry out data interaction, can stablize and realize live migration of virtual machine, allow the interruption of the imperceptible virtual machine service of user, again
The scope of migration is extended in whole network.
Embodiments of the invention also disclose a kind of live migration of virtual machine system.
Fig. 2 is the structured flowchart of the live migration of virtual machine system of one embodiment of the invention.
It refer to Fig. 2, a kind of live migration of virtual machine system 200, including source server 210.It is empty that source server 210 includes source
Plan machine 211, the first network interface card 212, the second network interface card 213 and binding module 214.
Wherein, source virtual machine 211 is arranged in source server 210, for providing Virtual Service..Second network interface card 213 uses
SR-IOV virtual technologies generate.Binding module 214 is bound the first network interface card 212 and second network interface card 213.Wherein, source
Before server 210 and destination server carry out thermophoresis, source server 210 is connected by the second network interface card 213 with destination server.
When source server 210 and destination server carry out thermophoresis, source server 210 is sent out by the first network interface card 212 to destination server
Virtual machine memory data is sent, to generate target virtual machine according to virtual machine memory data on destination server so as to complete
Thermophoresis between source server 210 and destination server.
In one embodiment of the invention, source server 210 is additionally operable to sending virutal machine memory to destination server
Source virtual machine 211 is deleted after data.
In one embodiment of the invention, source server 210 is additionally operable to set automatic redundant pattern, automatic redundant pattern
For chain where when the place link of the first network interface card 212 or the second network interface card 213 disconnects, automatically switching to another piece of network interface card
Road.Source server 210 is additionally operable to receive the place link for cutting off the second network interface card 213 after the cut-out that external equipment is sent instructs, and
The link where the first network interface card that automatically switched according to automatic redundant pattern when the place link of the second network interface card disconnects carries out data friendship
Mutually.
In one embodiment of the invention, realized using driver MacVTap and taken in the source server and target
Thermophoresis between business device.
In one embodiment of the invention, source server 210 is additionally operable to the first network interface card 212 and the second network interface card 212
When being bound, the IP address and MAC Address of the second network interface card 212 are configured.
It should be noted that the specific implementation of the live migration of virtual machine system of the embodiment of the present invention is implemented with the present invention
The specific implementation of the live migration of virtual machine method of example is similar, specifically refers to the description of method part, in order to reduce redundancy,
Do not repeat herein.
To make it is further understood that the present invention, will be described in detail by following examples.
Fig. 3 is the schematic diagram of the thermomigration process of one embodiment of the invention.It refer to Fig. 3, source server thermophoresis knot
Structure is similar with destination server.Many PF (Physical Function, physical function) are fictionalized perhaps using SR-IOV technologies
More VF.Each VF corresponds to some VM (Virtual Machine, virtual machine) services.Assuming that want the virtual machine of thermophoresis
For VM1.First, on source host and destination host by SR-IOV technologies, fictionalize and carry out multiple VF Microsoft Loopback Adapters and be supplied to virtually
Machine uses (such as VF1).Before thermophoresis starts, offer service is applied to virtual machine by link 2, business data flow does not have to logical
Cross the PF of host but receipt is directly received and dispatched through physical port (Physical Port) by network interface adapter (NIC).But work as
When carrying out thermophoresis, because VF1 can not be migrated.Now, built by bridging technology, VM1 network interface card and the physical network card of source host
Then two pieces of network interface cards of virtual machine are bound (bonding), the virtual machine VM1 internal memories of now thermophoresis by vertical bridge joint relation
Data, destination server can be forwarded to through interchanger by PF, network interface adapter, by physical port through bridge by link 1,
Transmission until completing live migration of virtual machine data.
In addition, the live migration of virtual machine method of the embodiment of the present invention and the other compositions and work of live migration of virtual machine system
All it is known with for a person skilled in the art, in order to reduce redundancy, does not repeat.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is by claim and its equivalent limits.
Claims (10)
- A kind of 1. live migration of virtual machine method, it is characterised in that comprise the following steps：By the source virtual machine on source server by bridging the first network interface card generated, and first network interface card is single defeated with using Enter/export the second network interface card that virtualization SR-IOV virtual technologies go out to be bound, wherein, the source server passes through described second Network interface card is connected with destination server；The source server is connected by being established between first network interface card and the destination server；The source server sends virtual machine memory data by first network interface card to the destination server, so as to described Target virtual machine is generated so as to complete in the source server and described according to the virtual machine memory data on destination server Thermophoresis between destination server, wherein, the source server is sent by first network interface card to the destination server During virtual machine memory data, the link between the source server, second network interface card and the destination server disconnects.
- 2. according to the method for claim 1, it is characterised in that in the source server by first network interface card to described Destination server also includes after sending virtual machine memory data：Delete the source virtual machine.
- 3. according to the method for claim 1, it is characterised in that tied up to first network interface card and second network interface card It is regularly further comprising the steps of：Automatic redundant pattern is set on the source server, the automatic redundant pattern is used in first network interface card or described When the place link of second network interface card disconnects, link where another piece of network interface card is automatically switched to；Wherein, the source server by first network interface card to the destination server send virtual machine memory data when, institute Source server is stated according to where the automatic redundant pattern disconnects second network interface card while link, automatic switchover described first Link carries out data interaction where network interface card.
- 4. according to the method for claim 1, it is characterised in that realized using driver MacVTap and serviced in the source Thermophoresis between device and destination server.
- 5. according to the method for claim 1, it is characterised in that tied up to first network interface card and second network interface card Regularly, in addition to：Configure the IP address and physical address MAC of second network interface card.
- A kind of 6. live migration of virtual machine system, it is characterised in that includingSource server, the source server include：Source virtual machine；First network interface card, first network interface card are generated by bridging；Second network interface card, second network interface card is using single input/output virtualization SR-IOV virtual technology generations；Binding module, for first network interface card and second network interface card to be bound；Wherein, before the source and target server carries out thermophoresis, the source server by second network interface card with The destination server connection；When the source server and the destination server carry out thermophoresis, the source server passes through First network interface card sends virtual machine memory data to the destination server, so as to described in the basis on the destination server Virtual machine memory data generates target virtual machine so as to which the heat completed between the source server and the destination server is moved Move.
- 7. system according to claim 6, it is characterised in that the source server is additionally operable to the destination server The source virtual machine is deleted after sending the virtual machine memory data.
- 8. system according to claim 6, it is characterised in that the source server is additionally operable to set automatic redundant pattern, The automatic redundant pattern is used for when the place link of first network interface card or second network interface card disconnects, and automatically switches To link where another piece of network interface card；The source server, which is additionally operable to receive after the cut-out instruction of external equipment transmission, cuts off described the The place link of two network interface cards, and automatically switched according to the automatic redundant pattern when the place link of second network interface card disconnects Link carries out data interaction where first network interface card.
- 9. system according to claim 6, it is characterised in that realized using driver MacVTap and serviced in the source Thermophoresis between device and destination server.
- 10. system according to claim 6, it is characterised in that the source server is additionally operable to first network interface card When being bound with second network interface card, the IP address and physical address MAC of second network interface card are configured.
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| CN109753346A (en) * | 2018-12-25 | 2019-05-14 | 新华三云计算技术有限公司 | A kind of live migration of virtual machine method and device |
| CN109753346B (en) * | 2018-12-25 | 2021-01-01 | 新华三云计算技术有限公司 | Virtual machine live migration method and device |
| CN111258665A (en) * | 2020-01-21 | 2020-06-09 | 上海米哈游天命科技有限公司 | Server starting method, device, server and medium |
| CN111866209A (en) * | 2020-07-07 | 2020-10-30 | 上海云轴信息科技有限公司 | Method and equipment for distributing network card for cloud host |
| CN112968809A (en) * | 2021-02-02 | 2021-06-15 | 杭州安恒信息技术股份有限公司 | Method and device for testing system stability and compatibility |
| CN114679461A (en) * | 2022-03-30 | 2022-06-28 | 浙江大学 | Cloud network session connectivity guarantee method and system for virtual machine live migration scene |
| CN114679461B (en) * | 2022-03-30 | 2023-02-14 | 浙江大学 | Cloud network session connectivity guarantee method and system for virtual machine live migration scene |
| CN115499385A (en) * | 2022-09-21 | 2022-12-20 | 中电云数智科技有限公司 | Method for avoiding packet loss in vDPA virtual machine thermal migration |
| CN115499385B (en) * | 2022-09-21 | 2023-09-12 | 中电云数智科技有限公司 | Method for preventing packet loss during thermal migration of vDPA virtual machine |
| CN115499298A (en) * | 2022-11-15 | 2022-12-20 | 济南浪潮数据技术有限公司 | Virtual machine live migration method, device, equipment and medium |
| CN115499298B (en) * | 2022-11-15 | 2023-02-28 | 济南浪潮数据技术有限公司 | Virtual machine live migration method, device, equipment and medium |
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