CN107179934A - The method and system of virtual machine automatic reduction in cloud computing environment - Google Patents
The method and system of virtual machine automatic reduction in cloud computing environment Download PDFInfo
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- CN107179934A CN107179934A CN201610136067.7A CN201610136067A CN107179934A CN 107179934 A CN107179934 A CN 107179934A CN 201610136067 A CN201610136067 A CN 201610136067A CN 107179934 A CN107179934 A CN 107179934A
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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
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1469—Backup restoration techniques
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1479—Generic software techniques for error detection or fault masking
- G06F11/1482—Generic software techniques for error detection or fault masking by means of middleware or OS functionality
- G06F11/1484—Generic software techniques for error detection or fault masking by means of middleware or OS functionality involving virtual machines
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Abstract
The present invention relates to a kind of system and method for virtual machine automatic reduction in cloud computing environment, the system includes virtualized server and the virtual machine run in virtualized server, automatic reduction plug-in unit is provided with its virtualized server, snapshot and reduction snapshot are carried out for the disk to virtual machine.It utilizes the snapshot of the automatic reduction plug-in unit generation virtual machine in virtualized server and preservation, recycles the automatic reduction plug-in unit in virtualized server to reduce virtual machine according to the snapshot.The present invention provides the function of virtual machine automatic reduction in cloud computing system, virtual machine can be selected to be turned on or off this function, current virtual machine state can be preserved as snapshot when opening virtual machine automatic reduction function, this snapshot can be reduced in start next time, it is achieved thereby that virtual machine automatic reduction function.Using stable and ease for use preferably, be particularly suitable for use in some virtual machines needs the cloud computing scene of automatic reduction function to the system.
Description
Technical field
It is particularly suitable the present invention relates to a kind of method and system of virtual machine automatic reduction in cloud computing environment
In the scene of the extensive fast automatic restoring function of some needs.
Background technology
Cloud computing is a kind of method of emerging shared architecture, and calculating task is distributed in big gauge by it
Calculate mechanism into resource pool on, various application systems is obtained computing power, memory space as needed
With various software services.The bottom of cloud computing needs virtualization technology to support.Pass through virtualization technology, cloud
Calculating can be realized to the flexible of resource and efficiently used, so as to provide the user quality services.
In the application practice of cloud computing system, some special scenes, such as audio-visual education room, books are run into
, it is necessary to which virtual machine all returns to original state after each in the usage scenarios such as shop, and cloud computing system
System does not provide this function typically, it is therefore desirable to design a kind of the automatic of virtual machine in cloud computing environment
The method and system of reduction.
Presently, there are some is used for the scheme of backup virtual machine, but can not realize the automatic reduction work(of virtual machine
Energy.Publication No. " CN103268268A "《Automatic restoration device for virtual machine》In provide it is a kind of empty
The method of plan machine automatic reduction, is preserved and in virtual machine by increasing virtual machine newly file as temporary file
Delete to realize that virtual machine is reduced during shutdown, and Publication No. " CN103207817A "《Virtual machine is certainly
Dynamic restoring method》Flow is similar therewith.
The stability of above-mentioned implementation is not enough to large-scale virtual machine reduction, especially audio-visual education programme in support
Scene as room is, it is necessary in the more than ten minutes intelligent restoration large-scale virtual machine of break, the stability of a system
It can be affected with availability.
The content of the invention
The system and method that the present invention proposes virtual machine automatic reduction in a kind of cloud computing environment, make virtual
Machine possess open and close automatic reduction function, the virtual machine for opening automatic reduction function,
Next time can revert to original state after starting.This kind of automatic reduction method has higher stability, and
With preferable ease for use, being particularly suitable for use in some needs the scene of extensive fast automatic restoring function.
The invention also provides a kind of snapshot subsystem of virtual machine automatic reduction system in cloud computing environment
And Snapshot Method, be easy to the snapshot of virtual machine to generate, be particularly suitable for use in for large-scale virtual machine it is quick from
Dynamic reduction provides snapshot.
The present invention main design thought be：In for cloud computing system of providing infrastructures, generally all
Controller and virtualized server can be included, Virtual Machine Manager, scheduling of resource etc. are included wherein in controller
Core Feature, virtual machine is then run in virtualized server.The automatic reduction function of virtual machine is realized,
Then need to transform controller and virtualized server.It is automatic that this programme design includes unlatching virtual machine
Reduction and closing two functions of automatic reduction, and new virtual machine startup method is devised, for realizing void
Plan machine automatic reduction function, and it is provided for appropriate also original basis.
In order to achieve the above object, the main technical schemes that the present invention is provided include：
The system of virtual machine automatic reduction in a kind of cloud computing environment, including virtualized server and
Automatic reduction plug-in unit is provided with the virtual machine run in virtualized server, its virtualized server,
Snapshot and reduction snapshot are carried out for the disk to virtual machine.
Wherein, including primary and secondary disk, (the primary and secondary disk in the present invention refers to virtual machine to the disk of virtual machine
Disk includes underlying disk and increment disk two parts, and underlying disk is referred to as into stamper, increment disk
Referred to as sub-disk), carried out when generating snapshot to the disk of virtual machine only for sub-disk.
Carried out when further, to the reducing disk snapshot of virtual machine only for sub-disk.
In one embodiment of the present of invention, it is the text in virtual machine that snapshot is carried out to the disk of virtual machine
Part is in what is carried out when locked state.
Preferably, being carried out to the disk progress snapshot of virtual machine when virtual machine shuts down.
Further, virtual machine shut down when refer to virtual machine be in off-mode when
Wait.
In one embodiment of the present of invention, the reducing disk snapshot to virtual machine is started shooting in virtual machine
When carry out.
Preferably, being referred to when virtual machine start in the start process of virtual machine.Specifically
Refer to and be first carried out reducing snapshot after power on request is received, then perform boot action.
In one embodiment of the present of invention, also with the virtual machine state being connected with automatic reduction plug-in unit
Preserving module, the original state for preserving virtual machine.
Preferably, virtual machine state preserving module is located at the controller being connected with virtualized server.
The system of virtual machine automatic reduction in any of the above-described kind of cloud computing environment, it also has automatic go back
Grand master pattern block, for controlling the automatic reduction plug-in unit in virtualized server.
Wherein, automatic reduction module is located at the controller being connected with virtualized server.
Preferably, automatic reduction module externally provides interface, automatic go back is turned on and off for receiving
Former request.
In one embodiment of the present of invention, automatic reduction module is asked according to automatic reduction, lookup pair
The virtual machine position answered and its state, and call in the virtualized server where the virtual machine
Automatic reduction plug-in unit is handled accordingly.
A kind of method of virtual machine automatic reduction in cloud computing environment, in virtualized server
The reduction of the virtual machine of operation, it comprises the following steps：
S1, the snapshot using the automatic reduction plug-in unit generation virtual machine in virtualized server and guarantor
Deposit；
S2, using snapshot of the automatic reduction plug-in unit in step S1 in virtualized server also
Former virtual machine.
In one embodiment of the present of invention, in addition to step S0, utilize the automatic reduction in controller
Module is turned on and off automatic reduction.
Preferably, automatic reduction module externally provides interface, automatic go back is turned on and off for receiving
Former request.
In one embodiment of the present of invention, automatic reduction module is asked according to automatic reduction, lookup pair
The virtual machine position answered and its state, and call in the virtualized server where the virtual machine
Automatic reduction plug-in unit is handled accordingly, and preserves virtual machine state.
Preferably, when closing automatic reduction, performing the fast of step S3, delete step S1 generation
According to.
Wherein, the disk of virtual machine includes primary and secondary disk, only pin when generating snapshot to the disk of virtual machine
Sub-disk is carried out.
In one embodiment of the present of invention, the disk of virtual machine includes primary and secondary disk, step S1 and S2
Sub-disk only for virtual machine is carried out.
In one embodiment of the present of invention, it is the text in virtual machine that snapshot is carried out to the disk of virtual machine
Part is in what is carried out when locked state.
Preferably, being carried out to the disk progress snapshot of virtual machine when virtual machine shuts down.
Further, virtual machine shut down when refer to virtual machine be in off-mode when
Wait.
In one embodiment of the present of invention, step S1 is entered when unappropriated file is locked
OK.
In one embodiment of the present of invention, step S2 is carried out when virtual machine is started shooting.
Preferably, being referred to when virtual machine start in the start process of virtual machine.Specifically
Refer to and be first carried out reducing snapshot after power on request is received, then perform boot action.
The snapshot subsystem of virtual machine automatic reduction system in a kind of cloud computing environment, it is in virtualization
Snapshot plug-in unit is provided with server, snapshot is carried out for the disk to virtual machine.
Wherein, the disk of virtual machine includes primary and secondary disk, only pin when generating snapshot to the disk of virtual machine
Sub-disk is carried out.
In one embodiment of the present of invention, it is the text in virtual machine that snapshot is carried out to the disk of virtual machine
Part is in what is carried out when locked state.
Preferably, being carried out to the disk progress snapshot of virtual machine when virtual machine shuts down.
Further, virtual machine shut down when refer to virtual machine be in off-mode when
Wait.
Wherein, snapshot plug-in unit is located in the automatic reduction plug-in unit set in virtualized server, should
Automatic reduction plug-in unit is used to carry out the disk of virtual machine snapshot and reduction snapshot.
The Snapshot Method of virtual machine automatic reduction system in a kind of cloud computing environment, it utilizes and is arranged on
Snapshot plug-in unit in virtualized server carries out snapshot to the disk of virtual machine.
Wherein, the disk of virtual machine includes primary and secondary disk, only pin when generating snapshot to the disk of virtual machine
Sub-disk is carried out.
In one embodiment of the present of invention, it is the text in virtual machine that snapshot is carried out to the disk of virtual machine
Part is in what is carried out when locked state.
Preferably, snapshotting step be file in magnetic disk of virtual machine it is unoccupied and locked when
Wait and carry out.
Preferably, being carried out to the disk progress snapshot of virtual machine when virtual machine shuts down.
Further, virtual machine shut down when refer to virtual machine be in off-mode when
Wait.
The system can provide automatic reduction function to the virtual machine in cloud computing environment, for opening certainly
The virtual machine of dynamic restoring function can revert to original state when next time starts.The original state refers to open
The state of virtual machine during automatic reduction function.The system is reliable and stable, is particularly suitable for use in audio-visual education room, figure
Book shop etc. needs the scene of extensive fast automatic restoring function to use.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the automatic reduction system of one embodiment of the invention；
Fig. 2 is that the automatic reduction system of one embodiment of the invention opens the entirety of automatic reduction function
Schematic flow sheet；
Fig. 3 is the virtual machine starting procedure schematic diagram of the automatic reduction system of one embodiment of the invention；
Fig. 4 is that the automatic reduction system of one embodiment of the invention closes the entirety of automatic reduction function
Schematic flow sheet.
Embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by specific real
Applying example, the present invention is described in detail.
As shown in figure 1, in a kind of cloud computing environment for providing of the present invention virtual machine automatic reduction system,
Including controller and virtualized server, it installs automatic reduction plug-in unit in virtualized server, mainly
Function including carrying out snapshot and reduction snapshot to magnetic disk of virtual machine.
Wherein, magnetic disk of virtual machine uses primary and secondary disk mode, only carries out snapshot and reduction to sub-disk, speed compared with
It hurry up.
Further, automatic reduction plug-in unit can be carried out when performing operation to magnetic disk of virtual machine file status
Check, and in operation to file locking, it is ensured that disk file is not damaged by, and improves the strong of system
Strong property.
Further, it increases automatic reduction module in the controller, externally provides interface, for connecing
Receive and be turned on and off the request of automatic reduction, receive after request, search corresponding virtual machine position and its
State, and call the automatic reduction plug-in unit in the virtualized server where the virtual machine to be located accordingly
Reason, and virtual machine state is preserved, complete request.
Wherein, when opening virtual machine automatic reduction function, virtual machine position is searched, and call automatic reduction
Plug-in unit carries out snapshot to virtual machine, and preserves state.
Wherein, when opening virtual machine, inquiry virtual machine automatic reduction is set, if opening, is then searched
Its snapshot, and restoring operation is carried out, boot up afterwards.The process for reducing snapshot is placed on unlatching virtual
Carried out when machine, relatively unified because of the inlet ratio for opening virtual machine, by actual verification, this mode
It is more stable.
Wherein, when closing virtual machine automatic reduction function, virtual machine position is searched, and call automatic reduction
Plug-in unit deletes virtual machine snapshot.
Present invention also offers the method for automatic reduction, including：Unlatching virtual machine automatic reduction function,
Improved virtual machine starting procedure and closing virtual machine automatic reduction function.
Wherein, in embodiment as shown in Figure 2, one can be generated when opening virtual machine automatic reduction function
The snapshot of individual virtual machine and preservation, idiographic flow is：
(1) user is called by cloud management platform or order line terminal and opens the automatic of some virtual machine
Automatic reduction module in restoring function, controller is received after request, can first go to check the shape of virtual machine
State, if virtual machine is currently running, points out whether to need positive closing virtual machine, if user's selection is no,
Then flow terminates, and returns to prompting, and the virtual machine being only closed could set automatic reduction.If
User's selection is then to close virtual machine, and the virtualized server address inquired about where virtual machine, is called
Automatic reduction plug-in unit.
(2) the automatic reduction plug-in unit on virtualized server receives after request, finds the magnetic of virtual machine
Disk file, if this file is occupied, circular wait is until time-out and returning result.If file not by
Take, then lock this document, to magnetic disk of virtual machine file generated snapshot, after the completion of unblock disk file simultaneously
Returning result.
(3) the automatic reduction module in virtualized server receives result and preserved, and letter is returned afterwards
Breath, opens virtual machine automatic reduction flow and terminates.
It should be noted that virtual machine is created using primary and secondary disk mode in the system, when generating snapshot here
Wait and generate snapshot for sub-disk, this mode speed is fast, better user experience.
Wherein, in embodiment as shown in Figure 3, virtual machine is opened after automatic reduction function, is being carried out
The snapshot automatic reduction that virtual machine will can be generated when start when setting automatic reduction, why in start
When reduced rather than reduced in shutdown, be because closing the entrance of virtual machine excessively, can be with
Be virtual machine internal voluntarily close be also likely to be external call interface close virtual machine, it is also possible to be powered off
It is caused to close, and the inlet ratio started shooting relatively is unified, reduction is carried out in start makes system more stablize
Reliably, specific virtual machine starting procedure is：
(1) the automatic reduction module in controller is received after power on request, whether can inquire about virtual machine
Automatic reduction function is opened, if being not turned on automatic reduction function, continues to operate execution starting procedure.
(2) if having started automatic reduction function, the position of virtual machine is searched, virtual machine place is called
The automatic reduction plug-in unit of virtualized server, finds magnetic disk of virtual machine and snapshot document.
(3) check whether file is occupied, waited if occupied until time-out is exited.
(4) if unoccupied, magnetic disk of virtual machine file is locked, and snapshot is subjected to restoring operation,
After the completion of unlock magnetic disk of virtual machine file, controller is returned result to afterwards.
(5) the automatic reduction module in controller preserves result, and power-on operation is performed afterwards, opens empty
Plan machine.
Wherein, in embodiment as shown in Figure 4, closing virtual machine automatic reduction function is relatively easy, its
Idiographic flow is：
(1) controller receives to close the request of virtual machine automatic reduction function, then inquires about where virtual machine
Automatic reduction plug-in unit in position, virtualized server where calling.
(2) the automatic reduction plugin lookup in virtualized server is to magnetic disk of virtual machine file and its is fast
According to rear, snapshot, and returning result are deleted.Because deleting snapshot to the operation of virtual machine without influence, therefore
Here magnetic disk of virtual machine file need not be locked.
(3) return result to automatic reduction module in controller, controller and preserve result, and return to letter
Breath, flow terminates.
In summary, the present invention provides the function of virtual machine automatic reduction in cloud computing system, to virtual machine
It can select to be turned on or off this function, current virtual can be preserved when opening virtual machine automatic reduction function
Machine state can reduce this snapshot in start next time, it is achieved thereby that virtual machine is automatic as snapshot
Restoring function.
Wherein, when opening the automatic reduction function of virtual machine, the automatic reduction module in controller is received
Request, checks the state of virtual machine, and automatic reduction is set to the virtual machine being closed.Inquiry is empty
Virtualized server address where plan machine, calls automatic reduction plug-in unit.It is automatic on virtualized server
Reduction plug-in unit receives request, finds the disk file of virtual machine, in the case of disk file is unoccupied,
Lock this document, to magnetic disk of virtual machine file generated snapshot, after the completion of unblock disk file and returning result.
Automatic reduction module in virtualized server receives result and preserved, and completes to open virtual machine automatically also
Former operation.
In virtual machine start process therein, the automatic reduction module in controller receives power on request,
Virtual machine for opening automatic reduction function, the automatic of virtualized server where calling virtual machine is gone back
Former plug-in unit, finds magnetic disk of virtual machine and snapshot document.Check whether file is occupied, if unoccupied,
Then lock magnetic disk of virtual machine file, and snapshot be subjected to restoring operation, after the completion of unblock magnetic disk of virtual machine text
Part, returns result to controller afterwards.Automatic reduction module in controller preserves result, performs afterwards
Power-on operation, opens virtual machine.
Wherein, close during virtual machine automatic reduction, controller receives to close virtual machine automatic reduction work(
Automatic reduction plug-in unit in the request of energy, inquiry virtual machine position, virtualized server where calling,
Automatic reduction plugin lookup in virtualized server deletes fast to magnetic disk of virtual machine file and its snapshot
According to, and return result to automatic reduction module preservation result in controller, controller, and return information.
Using stable and ease for use preferably, be particularly suitable for use in some virtual machines needs automatic reduction work(to the system
The cloud computing scene of energy.
Claims (9)
1. the system of virtual machine automatic reduction in a kind of cloud computing environment, including virtualized server
With the virtual machine run in virtualized server, it is characterised in that：
Automatic reduction plug-in unit is provided with virtualized server, snapshot is carried out for the disk to virtual machine
With reduction snapshot,
The disk of the virtual machine includes primary and secondary disk, and primary and secondary disk refers to that the disk of virtual machine includes basis
Disk and increment disk two parts, are referred to as stamper by underlying disk, and increment disk is referred to as sub-disk.
2. the system of virtual machine automatic reduction in cloud computing environment as claimed in claim 1, it is special
Levy and be：
Carried out when snapshot is generated to the disk of virtual machine only for sub-disk,
Disk generation snapshot to virtual machine is when the file of virtual machine is in locked state
Carry out,
The disk generation snapshot of virtual machine is carried out when virtual machine shuts down, virtual office
When referring to that virtual machine is in off-mode when machine；
Carried out during to the reducing disk snapshot of virtual machine only for sub-disk,
The reducing disk snapshot of virtual machine is carried out when virtual machine is started shooting, virtual machine is opened
Referred to when machine in the start process of virtual machine.
3. the system of virtual machine automatic reduction in cloud computing environment as claimed in claim 1, it is special
Levy and be：Also there is the virtual machine state preserving module being connected with automatic reduction plug-in unit, for preserving
The original state of virtual machine.
4. the system of virtual machine automatic reduction in cloud computing environment as claimed in claim 3, it is special
Levy and be：Virtual machine state preserving module is located at the controller being connected with virtualized server.
5. virtual machine automatic reduction in the cloud computing environment as any one of Claims 1-4
System, it is characterised in that：Also there is automatic reduction module, be connected located at virtualized server
Controller, for controlling the automatic reduction plug-in unit in virtualized server.
6. the system of virtual machine automatic reduction in cloud computing environment as claimed in claim 5, it is special
Levy and be：Automatic reduction module externally provides interface, and automatic reduction is turned on and off for receiving
Request.
7. the system of virtual machine automatic reduction in cloud computing environment as claimed in claim 6, it is special
Levy and be：Automatic reduction module is asked according to automatic reduction, search corresponding virtual machine position and
Its state, and call the automatic reduction plug-in unit in the virtualized server where the virtual machine to carry out phase
The processing answered.
8. a kind of method of virtual machine automatic reduction in cloud computing environment, in virtualization services
The reduction of the virtual machine run in device, it is characterised in that it comprises the following steps：
S0：Automatic reduction is turned on and off using the automatic reduction module in controller；
S1, the snapshot using the automatic reduction plug-in unit generation virtual machine in virtualized server and guarantor
Deposit；
S2, using snapshot of the automatic reduction plug-in unit in step S1 in virtualized server also
Former virtual machine；
When S3, closing automatic reduction, the snapshot of delete step S1 generations.
9. the method for virtual machine automatic reduction in cloud computing environment as claimed in claim 8, it is special
Levy and be：
The disk of virtual machine includes primary and secondary disk, and step S1 and S2 is carried out only for the sub-disk of virtual machine,
Step S1 be virtual machine file it is unoccupied and locking when carry out,
Step S1 is carried out when virtual machine shuts down,
Step S1 is generated using the snapshot plug-in unit being arranged in virtualized server to the disk of virtual machine
Snapshot,
Step S2 is carried out when virtual machine is started shooting.
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| CN201610136067.7A CN107179934B (en) | 2016-03-10 | 2016-03-10 | Method and system for automatically restoring virtual machine in cloud computing environment |
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| CN107179934B (en) | 2021-03-05 |
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