CN102521014A - Deploying method and deploying device for virtual machine - Google Patents
Deploying method and deploying device for virtual machine Download PDFInfo
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- CN102521014A CN102521014A CN2011104016081A CN201110401608A CN102521014A CN 102521014 A CN102521014 A CN 102521014A CN 2011104016081 A CN2011104016081 A CN 2011104016081A CN 201110401608 A CN201110401608 A CN 201110401608A CN 102521014 A CN102521014 A CN 102521014A
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Abstract
The invention provides a deploying method and a deploying device for a virtual machine. The method includes the steps: receiving request to deploy the virtual machine, wherein the request carries virtual machine image file identification used in deployment of the virtual machine; acquiring stored information of corresponding virtual machine image files from a distributed file system according to the virtual machine image file identification, wherein the distributed file system comprises a local storage of a plurality computing nodes; and selecting the computing nodes for deploying the virtual machine according to the stored information and load information of the computing nodes, and deploying the virtual machine on the selected computing nodes. The deploying device for the virtual machine comprises a receiving module, an acquiring module and a deploying module.
Description
Technical field
The present invention relates to the virtual machine technique field, relate in particular to a kind of dispositions method and device of virtual machine.
Background technology
Virtual machine (Hypervisor) technology.The encapsulation property of virtual machine, manageability make the user to make up the software runtime environment that is fit to calculation task according to the computation requirement of oneself.The transparency of virtual machine and isolation make the computing environment of virtual computer environment that the user makes up and host isolated, and the virtual computation environmental that different user makes up is isolated each other, and guaranteeing not to influence independent operating each other between each computer environment.The network virtualization technology is the basis with virtual with network application equally; Make the host network environment to make up the range upon range of virtual machine network of isolating for virtual machine; Let and be in different segment; The virtual machine of different main frames can go out in identical virtual network environment, the collaborative each other various calculation tasks of completion.Two above-mentioned Intel Virtualization Technologies combine, and make that structure is dynamically scalable, and the computing environment of user customizable becomes possibility.The user can utilize the technology of network virtualization; With the virtual machine that runs on the different physical computing nodes, form a Virtual Cluster through certain internetwork connection mode, under user's uniform dispatching management, carry out calculation task; Arrive on-demand computing, the purpose of efficient calculation.Because characteristics such as the isolation of virtual machine technique itself, encapsulation property, the user need not to pay close attention to physical resource itself, only dynamically disposes according to transparent the carrying out of computation requirement and creates satisfactory Virtual Cluster.And according to the dynamic change of computing environment and self-demand; Carry out the efficient allocation and the online migration of resource according to certain scheduling strategy; This just provides a kind of customized computing environment, and online migrating technology also can improve the reliability of system and dynamically carry out load balancing simultaneously.Thereby the Virtual Cluster of creating compares with physical cluster, has stronger dirigibility, also is easier to configuration and management.Show that through evaluation and test compare with physical cluster, the performance loss of Virtual Cluster generally is less than 10%.
The form of virtual machine image is varied, and the main at present formatted file that adopts is QCOW (promptly carrying out data write based on the form of COPY ON WRITE).Promptly there is one based on image file (BASE); This virtual machine manager is read-only to the read-write form of this mirror image; Can directly from this mirror image, carry out reading of data, but when needs write data in this mirror image, the data block at the data place that need will write copied; Generate a new file COW, then writing and retouching operation at the enterprising line data of COW.The elementary cell of data storage is cluster, and each cluster is by several fast compositions, and each piece all accounts for 512 bytes.Characteristics are when reading file, directly from former mirror image, read, but when will carry out write operation to former mirror image, need piece corresponding in the mirror image be copied portion, in duplicated, carry out write operation then.The QCOW file can increase along with the increase of content by small documents from the beginning then dynamically gradually.
Memory mechanism under the virtual computation environmental is to the optimal Storage of virtual machine image and high-efficiency management.Virtual machine image is as the key factor of the deployment Virtual Cluster under the virtual computation environmental.How to become a good and bad important indicator of system design, should guarantee good mirror image organizational form, again with the storage of mirror image science, reach efficient utilization and quick purpose of disposing, minimizing system operating pressure effectively manage in fact at present.Several kinds of storage schemes that current academia and industry member exist under virtual computation environmental are following: (1) is local stores, and makes full use of the storage space of computing node, and image file is downloaded to this locality fully.Improved the read or write speed of virtual machine like this to image file; Avoided the labile factor in the Network Transmission simultaneously, but very big deficiency has also been arranged, when system scale constantly enlarges; The read-write pressure of computing node is bigger; And be not easy to the online real-time migration of virtual machine,, need a large amount of image file of transmission because when virtual machine (vm) migration.(2) in order to improve the reusability of mirror image, when storage, adopt based on distributed storage solution, for example NFS, MFS etc. mostly.Large-scale data transmission when so fully having avoided virtual machine (vm) migration helps the centralized management of virtual disk simultaneously.But the storage space of the great amount of calculation node that but left unused causes waste to a certain degree in some cases.
Comprehensive above-mentioned introduction can find out that current storage system exists problems: (1) does not make full use of local disk storage space, has caused the serious waste of storage.(2) do not consider data relationship between the virtual machine image, file system is not understood contact each other, causes arbitrarily putting of image file, is unfavorable for the read-write of virtual machine to image file.(3) do not consider the operating position of virtual disk, the problem that causes the memory access focus to be concentrated.(4) principal element of the storage distribution situation of disk not being calculated as deployment causes calculating and the storage mismatch, has increased the burden of Network Transmission.
Summary of the invention
The present invention provides a kind of dispositions method and device of virtual machine, in order to solve the problems of the prior art.
The present invention provides a kind of dispositions method of virtual machine, comprising:
Receive the request of disposing virtual machine, carry in the said deployment request and dispose the employed virtual machine image file sign of virtual machine;
Obtain the canned data of corresponding virtual machine image file in distributed file system according to said virtual machine image file sign, said distributed file system is made up of this locality storage of a plurality of computing nodes;
According to the load information of said canned data and said a plurality of computing nodes, select to dispose the computing node of said virtual machine, and the computing node deploy virtual machine of selecting.
The present invention also provides a kind of deployment devices of virtual machine, comprising:
Receiver module is used to receive the request of disposing virtual machine, carries in the said deployment request and disposes the employed virtual machine image file sign of virtual machine;
Obtain module, be used for obtaining the canned data of corresponding virtual machine image file in distributed file system according to said virtual machine image file sign, said distributed file system is made up of this locality storage of a plurality of computing nodes;
Deployment module is used for the load information according to said canned data and said a plurality of computing nodes, selects to dispose the computing node of said virtual machine, and the computing node deploy virtual machine of selecting.
The dispositions method of virtual machine provided by the invention and device; Can combine image file in the distribution situation of each memory node and combine the operating position such as internal memory, storage, processor of computing node accurately; Reasonably dispose virtual machine; And the image file COW of virtual machine reasonably stored, better supported the efficient computing of virtual machine.Both made full use of the storage resources of computing node, helped the operations such as migration of virtual machine again, greatly reduced the cost that virtual calculating is disposed, the experiment porch of a high performance-price ratio was provided for each scientific research institution.
Description of drawings
The dispositions method process flow diagram of the virtual machine that Fig. 1 provides for one embodiment of the invention;
The structural representation of the distributed file system that Fig. 2 provides for the embodiment of the invention;
The process flow diagram of the step 103 that Fig. 3 provides for the embodiment of the invention;
The deployment devices structural representation of the virtual machine that Fig. 4 provides for the embodiment of the invention.
Embodiment
The dispositions method process flow diagram of the virtual machine that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, this method comprises:
The deployment devices of step 101, virtual machine (like client computer) receives the request of disposing virtual machine, carries in this request and disposes the employed virtual machine image file of virtual machine (BASE) sign;
Under a kind of situation, the deployment devices of virtual machine can provide the mutual of web interface, and the user can select employed virtual machine image file sign according to the demand of self disposing virtual machine.
The structural representation of the distributed file system that the embodiment of the invention as shown in Figure 2 provides, the computing node among Fig. 2 are shared this locality storage of oneself respectively, and this locality storage after sharing can distribute use by a unified Control Node.
The method of specifically setting up distributed file system can comprise: as the aspiration of the storage in the distributed file system, computing node promptly serves as the task executions node with this locality storage, simultaneously the idle idle storage resources of contribution; Propose calculation task through door to system, this distributed file system is accomplished the support to the virtual machine life cycle.
Wherein, can comprise at the computing node deploy virtual machine of having selected: the calculating according to user's configuration and system generates an XML file, has wherein write down the type of mirror image, and configuration informations such as the internal memory of virtual machine, processor.Virtual machine manager can generate corresponding virtual machine instance at the computing node of having selected according to this configuration file.In this configuration file, also pointed out newly-generated image file COW is stored in the distributed file system.
Need to prove, in step 103, in the process of the computing node deploy virtual machine of having selected, can also comprise:
The computing node of having selected sends a notification message to Control Node, carries the node identification of this computing node of having selected and the COW file identification of virtual machine in this notification message; This computing node of having selected receives the Indication message that Control Node is sent, and the COW Documents Department of carrying in this Indication message virtual machine is deployed in the information on the computing node of having selected.
Concrete, above-mentioned information is sent to the Control Node of distributed file system, and is accepted by the process of Control Node; The process of receiving information is reported this information; According to this information; The COW file of newly-generated virtual machine image is carried out distributed storage at this computing node of having selected,, be convenient to the read and write access of virtual machine read data in a backup of this node storage COW file.
Under a kind of embodiment, the process flow diagram of step 103 as shown in Figure 3, this step 103 can comprise:
Wherein, This canned data can be virtual machine image file distributed quantity on each node in distributed file system, and the load information of computing node comprises one or more in disk utilization rate, cpu busy percentage and the memory usage of each computing node at least.Need to prove that virtual machine image file (BASE) can be divided into a plurality of data blocks, each data block can by backup repeatedly can store one or more data blocks of BASE on each computing node.Here said distributed quantity is the quantity of data block.
Concrete, can be through the distribution record of each data block on each computing node of system tool collection image file; Record is analyzed, counted the number of times of the data block of image file in each computing node appearance; Count the image file piece and on each node, store the maximal value of number, and the minimum value in the storage, internal memory, processor utilization.Calculate the support achievement data of each computing node: A according to following formula
i=Q
i/ Q
Max* M%+D
Min/ Di*N%+C
Min/ C
i* L%+M
Min/ M
i* P%;
Wherein, A
iBe the support achievement data of i computing node, suppose that virtual machine image file is Q, Q distributed quantity in i computing node is Q
i, the maximal value of Q distributed quantity in whole computing nodes is Q
Max, the disk utilization rate of i computing node is D
i, all the minimum value of disk utilization rate is D in the computing node
Min, the memory usage of i computing node is M
i, all the minimum value of memory usage is M in the computing node
Min, the cpu busy percentage of i computing node is C
i, the minimum value C of cpu busy percentage in whole computing nodes
Min, M%, N%, L% and P% are respectively the preset weight value of utilization rate of utilization rate and the internal memory of the virtual machine image file distributed quantity on each node, disk utilization rate, CPU in distributed file system.
The dispositions method of the virtual machine that the present invention proposes, this method has following characteristics and advantage with respect to traditional dispositions method: (1) adopts a kind of extendability strong, the system architecture that the memory by using rate is high.Memory node dynamically adds, and does not influence the work of other node, can make full use of the storage space of computing node.(2), realize calculating and the deployment mechanisms of storing mutual perception according to memory state and system load.Made full use of local storage space, the whole loading condition of coupling system is reasonably arranged computing node simultaneously, makes virtual machine in distributed file system, read local data, has improved the performance of virtual calculating.
The deployment devices structural representation of the virtual machine that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, the deployment devices of this virtual machine can comprise: receiver module 401, obtain module 402 and deployment module 403.Wherein, Receiver module 401 is used to receive the request of disposing virtual machine; Carry in this request and dispose the employed virtual machine image file sign of virtual machine; Obtain module 402 and be used for obtaining the canned data of corresponding virtual machine image file in distributed file system according to the virtual machine image file sign, this distributed file system is made up of this locality storage of a plurality of computing nodes, and deployment module 403 is used for the load information according to canned data and a plurality of computing nodes; Select to dispose the computing node of this virtual machine, and the computing node deploy virtual machine of selecting.
On the basis of above-mentioned embodiment, this deployment module 403 can comprise: weighted units and computing unit.Wherein, weighted units is used for according to preset weight value, and canned data and load information are carried out weighting; Computing unit is used for the support achievement data according to the canned data after the weighting and each computing node of the calculating of the load information after the weighting.This canned data comprises virtual machine image file distributed quantity on each node in distributed file system, and the load information of node comprises one or more in disk utilization rate, CPU usage and the memory usage of each computing node at least.
The aforementioned calculation unit is used to carry out following calculating action:
A
i＝Q
i/Q
max*M％+
Dmin/Di*N％+C
min/C
i*L％+M
min/M
i*P％；
Wherein, A
iBe the support achievement data of i computing node, suppose that virtual machine image file is Q, Q distributed quantity in i computing node is Q
i, the maximal value of Q distributed quantity in whole computing nodes is Q
Max, the disk utilization rate of i computing node is D
i, all the minimum value of disk utilization rate is D in the computing node
Min, the memory usage of i computing node is M
i, all the minimum value of memory usage is M in the computing node
Min, the cpu busy percentage of i computing node is C
i, the minimum value C of cpu busy percentage in whole computing nodes
Min, M%, N%, L% and P% are respectively the preset weight value of utilization rate of utilization rate and the internal memory of the virtual machine image file distributed quantity on each node, disk utilization rate, CPU in distributed file system.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. the dispositions method of a virtual machine is characterized in that, comprising:
Receive the request of disposing virtual machine, carry in the said deployment request and dispose the employed virtual machine image file sign of virtual machine;
Obtain the canned data of corresponding virtual machine image file in distributed file system according to said virtual machine image file sign, said distributed file system is made up of this locality storage of a plurality of computing nodes;
According to the load information of said canned data and said a plurality of computing nodes, select to dispose the computing node of said virtual machine, and the computing node deploy virtual machine of selecting.
2. method according to claim 1 is characterized in that said distributed file system has Control Node, and then said in the process of the computing node deploy virtual machine of having selected, said method also comprises:
The said computing node of having selected sends a notification message to said Control Node, carries the node identification of self and the COW file identification of virtual machine in the said notification message;
The said computing node of having selected receives the Indication message that said Control Node is sent, and the COW Documents Department of carrying in the said Indication message said virtual machine is deployed in the information on the said computing node of having selected.
3. according to its claim 1 or 2 described methods, it is characterized in that, said load information according to said canned data and said a plurality of computing nodes, the computing node of said virtual machine is disposed in selection, comprising:
According to preset weight value, canned data and load information are carried out weighting;
Support achievement data according to the canned data after the weighting and each computing node of the calculating of the load information after the weighting.
4. method according to claim 3; It is characterized in that; Said canned data comprises said virtual machine image file distributed quantity on each node in distributed file system, and the load information of said computing node comprises one or more in disk utilization rate, cpu busy percentage and the memory usage of each computing node at least.
5. method according to claim 4 is characterized in that, said support achievement data according to the canned data after the weighting and each computing node of the calculating of the load information after the weighting comprises:
A
i＝Q
i/Q
max*M％+D
min/Di*N％+C
min/C
i*L％+M
min/M
i*P％；
Wherein, A
iBe the support achievement data of i computing node, suppose that virtual machine image file is Q, Q distributed quantity in i computing node is Q
i, the maximal value of Q distributed quantity in whole computing nodes is Q
Max, the disk utilization rate of i computing node is D
i, all the minimum value of disk utilization rate is D in the computing node
Min, the memory usage of i computing node is M
i, all the minimum value of memory usage is M in the computing node
Min, the cpu busy percentage of i computing node is C
i, the minimum value C of cpu busy percentage in whole computing nodes
Min, M%, N%, L% and P% are respectively the preset weight value of utilization rate of utilization rate and the internal memory of the virtual machine image file distributed quantity on each node, disk utilization rate, CPU in distributed file system.
6. the deployment devices of a virtual machine is characterized in that, comprising:
Receiver module is used to receive the request of disposing virtual machine, carries in the described request and disposes the employed virtual machine image file sign of virtual machine;
Obtain module, be used for obtaining the canned data of corresponding virtual machine image file in distributed file system according to said virtual machine image file sign, said distributed file system is made up of this locality storage of a plurality of computing nodes;
Deployment module is used for the load information according to said canned data and said a plurality of computing nodes, selects to dispose the computing node of said virtual machine, and the computing node deploy virtual machine of selecting.
7. device according to claim 6 is characterized in that, said deployment module comprises:
Weighted units is used for according to preset weight value, and canned data and load information are carried out weighting;
Computing unit is used for the support achievement data according to the canned data after the weighting and each computing node of the calculating of the load information after the weighting.
8. device according to claim 7; It is characterized in that; Said canned data comprises said virtual machine image file distributed quantity on each node in distributed file system, and the load information of said node comprises one or more in disk utilization rate, cpu busy percentage and the memory usage of each computing node at least.
9. device according to claim 8 is characterized in that, said computing unit is used to carry out following calculating action:
A
i＝Q
i/Q
max*M％+D
min/Di*N％+C
min/C
i*L％+M
min/M
i*P％；
Wherein, A
iBe the support achievement data of i computing node, suppose that virtual machine image file is Q, Q distributed quantity in i computing node is Q
i, the maximal value of Q distributed quantity in whole computing nodes is Q
Max, the disk utilization rate of i computing node is D
i, all the minimum value of disk utilization rate is D in the computing node
Min, the memory usage of i computing node is M
i, all the minimum value of memory usage is M in the computing node
Min, the cpu busy percentage of i computing node is C
i, the minimum value C of cpu busy percentage in whole computing nodes
Min, M%, N%, L% and P% are respectively the preset weight value of utilization rate of utilization rate and the internal memory of the virtual machine image file distributed quantity on each node, disk utilization rate, CPU in distributed file system.
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| CN107102890A (en) * | 2017-07-12 | 2017-08-29 | 郑州云海信息技术有限公司 | The moving method and moving apparatus of a kind of virtual machine |
| CN109344001A (en) * | 2018-08-29 | 2019-02-15 | 广东微云科技股份有限公司 | A kind of concurrent backup method and system of virtual machine file |
| CN109344001B (en) * | 2018-08-29 | 2022-01-11 | 广东微云科技股份有限公司 | Concurrent backup method and system for virtual machine files |
| CN109462508A (en) * | 2018-11-30 | 2019-03-12 | 北京百度网讯科技有限公司 | Node deployment method, device and storage medium |
| CN109462508B (en) * | 2018-11-30 | 2021-06-01 | 北京百度网讯科技有限公司 | Node deployment method, device and storage medium |
| CN116719614A (en) * | 2023-08-11 | 2023-09-08 | 中国电信股份有限公司 | Virtual machine monitor selection method, device, computer equipment and storage medium |
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