CN105573815B - A kind of method and device of virtual machine (vm) migration - Google Patents
A kind of method and device of virtual machine (vm) migration Download PDFInfo
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- CN105573815B CN105573815B CN201510909660.6A CN201510909660A CN105573815B CN 105573815 B CN105573815 B CN 105573815B CN 201510909660 A CN201510909660 A CN 201510909660A CN 105573815 B CN105573815 B CN 105573815B
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- 230000005012 migration Effects 0.000 title claims abstract description 51
- 238000013508 migration Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 37
- 241001269238 Data Species 0.000 claims description 7
- 230000003362 replicative effect Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
- G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
- G06F9/4856—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration
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Abstract
The invention discloses a kind of methods of virtual machine (vm) migration, are related to field of communication technology, and the distance limitation migrated online is effectively relieved.In the present invention, when virtual machine needs to do online migration over long distances between two nodes apart from each other, from the limitation according to storage I/O time delay, several relay nodes are first selected, in transition process, it sends all relay nodes and destination node simultaneously by storing data.When start node and a nearest node meet transition condition, triggers and migrated to first relay node.Meanwhile the network relevant configuration of start node is transferred to first relay node, realize the purpose that flow is guided to first relay node.After the completion of this process, start node closes and discharges related resource.First relay node replaces start node, continues to initiate the migration to next node, repeats above-mentioned process, until virtual machine finally moves to destination node.During the embodiment of the present invention is suitable for virtual machine (vm) migration.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method and devices of virtual machine (vm) migration.
Background technique
With the development of communication technology, especially virtualization technology is universal, and cloud computation data center is usually using virtual
Machine executes task.In practical applications, due to energy saving, the standby guarantee of calamity, business migration, the nearby needs such as service, often
By the method for virtual machine (vm) migration without interrupting the service, the physical location change of service node is realized.
Virtual machine (vm) migration needs to complete two parts work, first is that the migration of system mode.This refers to the behaviour on source host
Make system and application program is moved to destination host, and can be operated normally on destination host.Second is that storage state turns
It moves.If migration front and back two virtual machine shares storage medium, which be can be omitted.If two virtual machines in migration front and back
Storage medium is not shared, then is needed also consistent by synchronous hold mode between two storage mediums.
During virtual machine (vm) migration, whether the outward service run thereon is interrupted, and can be classified as migrating offline
With online migration.
Relative to offline migration, due to having ensured business continuance, application is more extensive for online migration.Online migration
In the process, due in transition process business do not interrupt, the system mode and storage state of source virtual machine are still constantly changing.In order to
Guarantee that migration front and back system is synchronous with storage state, the dirty data being written in transition process can be notified mesh by source virtual machine
Virtual machine.When the two state is very nearly the same, source host is suspended, and there is no memory refreshings.Last dirty data is passed
Purpose virtual machine is transported to, entire transition process is completed.For the continuity for ensureing business, it is desirable that this dirty data is sufficiently small, not shadow
External service performance after ringing destination host starting.It is therefore desirable to which the synchronization delayed time between source virtual machine and purpose virtual machine is enough
It is small, and the propagation delay time of the time delay i.e. synchronization signal in a fiber.The time delay limits between source host and destination host
Distance, limit the availability and flexibility ratio migrated online.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of virtual machine (vm) migration, and the distance limit migrated online is effectively relieved
System.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the invention provides a kind of methods of virtual machine (vm) migration, comprising:
According to the spacing between system synchronisation requirement and source node and destination node, at least one relay node is determined；
The system mode of virtual machine in source node and current storage status are copied to all subsequent relay nodes and mesh
Node；
When needing to replicate there is no new dirty data between the source node and first relay node, by the source
The network configuration of node is transferred to first relay node, while hanging up the source node；First relay node is
With the source node apart from nearest relay node at least one determining described relay node；
The dirty data that virtual machine in first relay node generates is copied to all subsequent relay nodes and purpose section
Point；
It, will be described when needing to replicate there is no new dirty data between first relay node and the second relay node
The network configuration of first relay node is transferred to second relay node, while hanging up first relay node；Described
Two relay nodes are at least one fixed described relay node and in nearest subsequent of the first relay node distance
After node；
And so on, until there is no new dirty datas to need again between the last one relay node and the destination node
When processed, the network configuration of the last one relay node is transferred to the destination node, at the same hang up it is described the last one
Relay node, so that the virtual machine of the source node operates in the destination node.
The embodiment of the invention also provides a kind of devices of virtual machine (vm) migration, comprising:
Determination unit, for determining at least according to the spacing between system synchronisation requirement and source node and destination node
One relay node；
Copied cells, it is all subsequent for the system mode of virtual machine in source node and current storage status to be copied to
Relay node and destination node；
Buanch unit, for when there is no new dirty datas to need again between the source node and first relay node
When processed, the network configuration of the source node is transferred to first relay node, while hanging up the source node；Described first
Relay node is with the source node at least one fixed described relay node apart from nearest relay node；
The replica node, be also used to by first relay node virtual machine generate dirty data be copied to it is all after
Continuous relay node and destination node；
The buanch unit is also used to when there is no new dirty numbers between first relay node and the second relay node
When according to needing to replicate, the network configuration of first relay node is transferred to second relay node, while described in hang-up
First relay node；Second relay node is to save at least one fixed described relay node with first relaying
Point is apart from nearest subsequent relay node；And so on, until not deposited between the last one relay node and the destination node
When new dirty data needs to replicate, the network configuration of the last one relay node is transferred to the destination node, together
When hang up the last one described relay node so that the virtual machine of the source node operates in the destination node.
The method and device of a kind of virtual machine (vm) migration provided in an embodiment of the present invention, when virtual machine is needed apart from each other
When doing online migration over long distances between two nodes, which can first select several relayings to save from the limitation according to storage I/O time delay
Point, in transition process, which first can send all relay nodes and destination node for storing data simultaneously.When initial section
When point meets transition condition with a nearest node, triggers and migrated to first relay node.Meanwhile by the net of start node
Network relevant configuration is transferred to first relay node, realizes the purpose that flow is guided to first relay node.This process is complete
Cheng Hou, start node close and discharge related resource.First relay node replaces start node, continues to initiate to next section
The migration of point repeats above-mentioned process, until virtual machine finally moves to destination node.Since storage is to be simultaneously sent to migration section
All nodes after point are greatly saved storage synchronization time, ensure that long-distance migration, business during subsequent migration
It is not offline.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of composition block diagram of virtual machine (vm) migration system provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow diagram of virtual machine (vm) migration provided in an embodiment of the present invention；
Fig. 3 is a kind of composition block diagram of the device of virtual machine (vm) migration provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention is supplied to a kind of method of virtual machine (vm) migration, is suitable for a kind of virtual machine (vm) migration system,
Composition is as shown in Figure 1, include virtual platform management system, network SDN controller, database, source node, several relayings section
Point, destination node.
Virtual platform management system is responsible for the management of virtual machine and storage in all nodes.It is responsible in all nodes
Select one or more relay nodes of meet demand.When discovery virtual machine meets online transition condition between two neighboring node
When, trigger online transition process.
Network SDN controller is responsible for the management of all meshed network equipment.
Database records current all data middle positions and its mutual transmission range.Format is as shown in the table:
Transmission range example between 1 node of table
| Node A | Node B | Node C | |
| Node A | 0km | 150km | 70km |
| Node B | 150km | 0km | 90km |
| Node C | 70km | 90km | 0km |
Source node initiates the back end of virtual machine (vm) migration.
Destination node, the back end where purpose virtual machine.
Relay node, during virtual machine (vm) migration from synergism back end, might have multiple.Synergism
Be embodied in, relay node can a certain moment can substitute source node in transition process virtual machine business is externally provided, ensure industry
Business is not interrupted.
It is described based on aforementioned system structure, method provided in an embodiment of the present invention is by virtual platform management system, network
The process of SDN controller cooperative achievement, each self-operating of the two equipment can be configured as needed, this method as shown in Fig. 2,
Include:
101, according to the spacing between system synchronisation requirement and source node and destination node, at least one relaying section is determined
Point.
The specific embodiment of the step is to determine maximum node spacing according to the system synchronisation requirement；According to the source
Spacing and the maximum node spacing between node and destination node, determine at least one relay node.
Wherein, maximum node spacing is determined by rigid requirements such as system synchronization delayed times, and synchronization is completed in transition process
The maximum distance of two nodes.
102, the system mode of virtual machine in source node and current storage status are copied to all subsequent relay nodes
And destination node.
Referring herein to system mode and current storage status not only include being related to depositing for virtual machine to be migrated in node
Data, the static datas such as system data are stored up, the dynamic datas such as dirty data generated when further include virtual machine being user service.
103, when needing to replicate there is no new dirty data between the source node and first relay node, by institute
The network configuration for stating source node is transferred to first relay node, while hanging up the source node.
Wherein, first relay node be at least one fixed described relay node with the source node distance
Nearest relay node.
At this point, source node no longer service for user, after virtual machine (vm) migration, IP address and MAC Address are not
Become, therefore the data flow that user sends can be immediately sent to the first relay node, and by the virtual machine in the first relay node
Continue to service, is equivalent to virtual machine and is migrated by source node to the first relay node.The subsequent data being related to of the embodiment of the present invention are multiple
System, node hang up etc. the realization principle of operations with it is similar herein.
104, the dirty data that virtual machine in first relay node generates is copied to all subsequent relay nodes and mesh
Node.
It 105, will when needing to replicate there is no new dirty data between first relay node and the second relay node
The network configuration of first relay node is transferred to second relay node, while hanging up first relay node.
Wherein, second relay node is to save at least one fixed described relay node with first relaying
Point is apart from nearest subsequent relay node.
106, and so on, until there is no new dirty datas to need between the last one relay node and the destination node
When replicating, the network configuration of the last one relay node is transferred to the destination node, while being hung up described last
One relay node, so that the virtual machine of the source node operates in the destination node.
Supplementary explanation, the embodiment of the present invention do not limit the number of relay node, can not have during realizing,
There can be one or more, this will be determined according between source and destination node away from the synchronous requirement of discrete system.
The method of a kind of virtual machine (vm) migration provided in an embodiment of the present invention, when virtual machine is needed in two sections apart from each other
When doing online migration over long distances between point, which can first select several relay nodes from the limitation according to storage I/O time delay,
In transition process, which first can send all relay nodes and destination node for storing data simultaneously.When start node with
When a nearest node meets transition condition, triggers and migrated to first relay node.Meanwhile by the network phase of start node
It closes configuration and is transferred to first relay node, realize the purpose that flow is guided to first relay node.After the completion of this process,
Start node closes and discharges related resource.First relay node replaces start node, continues to initiate to next node
Migration repeats above-mentioned process, until virtual machine finally moves to destination node.Since storage is after being simultaneously sent to migration node
All nodes storage synchronization time is greatly saved, ensure that long-distance migration during subsequent migration, business not under
Line.
The embodiment of the invention also provides a kind of devices of virtual machine (vm) migration, as shown in Figure 3, comprising:
Determination unit 21, for determining extremely according to the spacing between system synchronisation requirement and source node and destination node
A few relay node.
Copied cells 22, for by the system mode of virtual machine in source node and current storage status be copied to it is all after
Continuous relay node and destination node.
Buanch unit 23, for when there is no new dirty datas to need between the source node and first relay node
When duplication, the network configuration of the source node is transferred to first relay node, while hanging up the source node；Described
One relay node is with the source node at least one fixed described relay node apart from nearest relay node.
The replica node 22 is also used to for the dirty data that virtual machine in first relay node generates being copied to all
Subsequent relay node and destination node.
The buanch unit 23 is also used to when there is no newly dirty between first relay node and the second relay node
When data need to replicate, the network configuration of first relay node is transferred to second relay node, while hanging up institute
State the first relay node；Second relay node is to relay at least one fixed described relay node with described first
The nearest subsequent relay node of nodal distance；And so on, until between the last one relay node and the destination node not
When needing to replicate there are new dirty data, the network configuration of the last one relay node is transferred to the destination node,
The last one described relay node is hung up simultaneously, so that the virtual machine of the source node operates in the destination node.
Optionally, the determination unit 21 includes:
First determining module 211, for determining maximum node spacing according to the system synchronisation requirement.
Second determining module 212, for according to the spacing between the source node and destination node and described maximum saving
Point spacing, determines at least one relay node.
The device of a kind of virtual machine (vm) migration provided in an embodiment of the present invention, when virtual machine is needed in two sections apart from each other
When doing online migration over long distances between point, which can first select several relay nodes from the limitation according to storage I/O time delay,
In transition process, which first can send all relay nodes and destination node for storing data simultaneously.When start node with
When a nearest node meets transition condition, triggers and migrated to first relay node.Meanwhile by the network phase of start node
It closes configuration and is transferred to first relay node, realize the purpose that flow is guided to first relay node.After the completion of this process,
Start node closes and discharges related resource.First relay node replaces start node, continues to initiate to next node
Migration repeats above-mentioned process, until virtual machine finally moves to destination node.Since storage is after being simultaneously sent to migration node
All nodes storage synchronization time is greatly saved, ensure that long-distance migration during subsequent migration, business not under
Line.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Help software that the mode of required common hardware is added to realize, naturally it is also possible to which the former is more preferably by hardware, but in many cases
Embodiment.Based on this understanding, the portion that technical solution of the present invention substantially in other words contributes to the prior art
Dividing can be embodied in the form of software products, which stores in a readable storage medium, such as count
The floppy disk of calculation machine, hard disk or CD etc., including some instructions are used so that computer equipment (it can be personal computer,
Server or the network equipment etc.) execute method described in each embodiment of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (4)
1. a kind of method of virtual machine (vm) migration characterized by comprising
According to the spacing between system synchronisation requirement and source node and destination node, at least one relay node is determined；
The system mode of virtual machine in source node and current storage status are copied to all subsequent relay nodes and purpose section
Point；
When needing to replicate there is no new dirty data between the source node and the first relay node, by the net of the source node
Network configuration is transferred to first relay node, while hanging up the source node；First relay node is fixed institute
It states at least one relay node with the source node apart from nearest relay node；
The dirty data that virtual machine in first relay node generates is copied to all subsequent relay nodes and destination node；
When needing to replicate there is no new dirty data between first relay node and the second relay node, by described first
The network configuration of relay node is transferred to second relay node, while hanging up first relay node；In described second
After node be with first relay node at least one fixed described relay node apart from nearest subsequent relay section
Point；
And so on, until needing to replicate there is no new dirty data between the last one relay node and the destination node
When, the network configuration of the last one relay node is transferred to the destination node, while described in hang-up in the last one
After node, so that the virtual machine of the source node operates in the destination node.
2. the method according to claim 1, wherein described according to system synchronisation requirement and source node and purpose
Spacing between node determines that at least one relay node includes:
Maximum node spacing is determined according to the system synchronisation requirement；
According to the spacing and the maximum node spacing between the source node and destination node, at least one relaying section is determined
Point.
3. a kind of device of virtual machine (vm) migration characterized by comprising
Determination unit, for determining at least one according to the spacing between system synchronisation requirement and source node and destination node
Relay node；
Copied cells, for the system mode of virtual machine in source node and current storage status to be copied to all subsequent relays
Node and destination node；
Buanch unit, for inciting somebody to action when needing to replicate there is no new dirty data between the source node and the first relay node
The network configuration of the source node is transferred to first relay node, while hanging up the source node；The first relaying section
Point is with the source node at least one fixed described relay node apart from nearest relay node；
The copied cells, be also used to by first relay node virtual machine generate dirty data be copied to it is all it is subsequent in
After node and destination node；
The buanch unit is also used to when there is no new dirty datas to need between first relay node and the second relay node
When replicating, the network configuration of first relay node is transferred to second relay node, while hanging up described first
Relay node；Second relay node be at least one fixed described relay node with first relay node away from
From nearest subsequent relay node；And so on, until there is no new between the last one relay node and the destination node
Dirty data when needing to replicate, the network configuration of the last one relay node is transferred to the destination node, is hung simultaneously
The last one described relay node is played, so that the virtual machine of the source node operates in the destination node.
4. device according to claim 3, which is characterized in that the determination unit includes:
First determining module, for determining maximum node spacing according to the system synchronisation requirement；
Second determining module, for according to the spacing and the maximum node spacing between the source node and destination node,
Determine at least one relay node.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104123171A (en) * | 2014-06-10 | 2014-10-29 | 浙江大学 | Virtual machine migrating method and system based on NUMA architecture |
| CN104750541A (en) * | 2015-04-22 | 2015-07-01 | 成都睿峰科技有限公司 | Virtual machine migration method |
| CN104750542A (en) * | 2015-04-22 | 2015-07-01 | 成都睿峰科技有限公司 | Data migration method based on cloud platform |
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| US9477506B2 (en) * | 2013-02-12 | 2016-10-25 | Futurewei Technologies, Inc. | Dynamic virtual machines migration over information centric networks |
| JP6160253B2 (en) * | 2013-05-30 | 2017-07-12 | 富士通株式会社 | Virtual machine management apparatus, virtual machine management method, and information processing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104123171A (en) * | 2014-06-10 | 2014-10-29 | 浙江大学 | Virtual machine migrating method and system based on NUMA architecture |
| CN104750541A (en) * | 2015-04-22 | 2015-07-01 | 成都睿峰科技有限公司 | Virtual machine migration method |
| CN104750542A (en) * | 2015-04-22 | 2015-07-01 | 成都睿峰科技有限公司 | Data migration method based on cloud platform |
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