WO2014059612A1

WO2014059612A1 - Method and device for realizing virtual machine migration

Info

Publication number: WO2014059612A1
Application number: PCT/CN2012/083057
Authority: WO
Inventors: 朱洁; 秦晋; 张毅; 张楚雄
Original assignee: 华为技术有限公司
Priority date: 2012-10-17
Filing date: 2012-10-17
Publication date: 2014-04-24
Also published as: CN103891243A; CN103891243B

Abstract

Provided are method and device for realizing virtual machine migration. The method comprises: after receiving information about a virtual machine group sent by an application management server, searching for the deployment location information about all the virtual machines in the virtual machine group according to this information so as to determine a destination physical machine set which can accommodate all the virtual machines in the virtual machine group and make the communication response time therebetween shorter than the current communication time, and then migrating the virtual machines in the virtual machine group running in physical machines which does not belong to the destination physical machine set to this set. With the present invention, on the premise that the virtual machines in a virtual machine group are migrated to a physical machine set which contains the fewest number of subnets and contains the fewest number of physical machines, rapid exchange of virtual machine communication data in the virtual machine group is realized, thus improving application user experience effectively.

Description

Method and device for realizing virtual machine migration

Technical field

The present invention relates to the field of communication network technologies, and in particular, to a method and a corresponding apparatus for implementing virtual machine migration.

Background technique

There are two modes of cloud computing: Infrastructure as a Service (IaS) and SaaS (Software as a Service). The service provided by IaaS to users is the utilization of all infrastructure, including processing, storage, and network. And other basic computing resources, the service SaaS provides to users is the application that the operator runs on the infrastructure.

Most IaaS platforms provide virtual computing resources by providing virtual machines. SaaS providers can serve as users of the IaaS platform, deploy applications on the IaaS platform, and then provide services to application users. When the IaaS platform is built on a virtual machine, the virtual resources provided by the IaaS platform to the SaaS provider are virtual machines customized according to the requirements of the SaaS provider. The actual running position of the virtual machine is transparent to the SaaS provider. The IaaS vendor is responsible for the maintenance, fault recovery, security monitoring, and billing of virtual machine hardware and associated software (such as virtualization software, guest operating systems, etc.), while SaaS vendors are responsible for providing application services to users. Typically, when the terminal accesses an application provided by SaaS, such as launching a network game, SaaS requests the IaaS platform to allocate a virtual machine to the terminal, and the virtual machine is only used for the application of the terminal.

A collaborative group application refers to an application in which multiple terminals acquire computing resources in a network and participate in and cooperate with each other. Examples of such applications include online games, file sharing, video conferencing, and the like. The plurality of terminals participating in the collaborative group application constitute a collaborative group.

In the prior art, when the software application provided by the SaaS provider is a collaborative group application, if the SaaS platform is built on the virtual machine, the collaborative group application is specifically allocated to the terminal that constitutes the collaborative group application. A set of virtual machines is done. The set of virtual machines constitutes a virtual machine group. Virtual machines in a virtual machine group may run on different subnets or on different physical machines. A large amount of communication will occur between them, and the time required for cross-subnet communication is longer than that required for communication within the same subnet. Even if communication between different physical machines in the same subnet is greater than the time required for communication within the same physical machine. Therefore, the prior art has a long application response time, resulting in a poor user application experience. Defects.

Summary of the invention

The embodiments of the present invention provide a method and an apparatus for implementing virtual machine migration, which are used to improve the speed of data communication between virtual machines in a virtual machine group that completes a collaborative group application, thereby reducing application response time and greatly improving user experience. Receiving information about a virtual machine group sent by the application management server, where the virtual machine group includes multiple virtual machines that complete the specified collaborative group application, and the information of the virtual machine group includes each virtual machine in the virtual machine group. Unique identifier

According to the information of the virtual machine group, the deployment location information of each virtual machine in the virtual machine group is searched, and the deployment location information of the virtual machine includes a unique identifier of the subnet to which the virtual machine belongs and a physical machine on which the virtual machine belongs. Unique identifier

Determining, according to the deployment location information of the virtual machine, a set of destination physical machines capable of accommodating the virtual machine group and accommodating the communication response time between the virtual machines in the virtual machine group is shorter than the current communication response time; The destination physical machine set, when the physical machine on which the virtual machine runs does not belong to the target physical machine set, the virtual machine is migrated to the destination physical machine set.

In a first possible implementation manner of the first aspect, determining a one that can accommodate the virtual machine group and accommodating a communication response time between virtual machines in the virtual machine group is shorter than a current communication response time. The method for the collection of the physical machine includes: when all the virtual machines in the virtual machine group are in different physical machines of the same subnet, determining that the virtual machine group can be accommodated in the subnet, and the number of physical machines is the least Physical machine collection; select one of the physical machine collections as the destination physical machine collection.

In a second possible implementation manner of the first aspect, determining a one that can accommodate the virtual machine group and accommodating a communication response time between virtual machines in the virtual machine group is shorter than a current communication response time. The method of the destination physical machine set includes: when all the virtual machines in the virtual machine group are in different physical machines of different subnets, determining that the virtual machine group can be accommodated in all the subnets, and the number of subnets is the smallest a subnet collection; determining, in the subnet collection, a set of physical machines capable of accommodating the virtual machine group and containing the fewest number of physical machines; selecting one of the physical machine sets to cooperate A collection of physical machines for the purpose.

In a third possible implementation manner of the first aspect, the migrating the virtual machine to the destination physical machine set further includes: if the migration is a cross-subnet migration, sending the virtual machine to the application management server after the migration IP address.

With the first possible implementation of the first aspect, in a fourth possible implementation, selecting one of the physical machine sets as the target physical machine set specifically includes: if the determined physical machine set has multiple Select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the target physical machine set.

With reference to the second possible implementation of the first aspect, in a fifth possible implementation, selecting one of the physical machine sets as the target physical machine set includes: if the determined physical machine set has multiple, Select a set of physical machines that require the least number of virtual machine migrations in the virtual machine group as the destination physical machine collection.

In a second aspect, the resource management server provided by the embodiment of the present invention includes:

An interface unit, configured to receive information about a virtual machine group sent by the application management server, where the virtual machine group includes multiple virtual machines that complete the specified collaborative group application, where the information of the virtual machine group includes the virtual machine group The unique identifier of each virtual machine in the middle;

a searching unit, configured to search for deployment location information of each virtual machine in the virtual machine group according to the information about the virtual machine group received by the interface unit, where the deployment location information of the virtual machine includes a subnet to which the virtual machine belongs a unique identifier and a unique identifier of the physical machine on which it is running;

a determining unit, configured to determine, according to the deployment location information of the virtual machine that is found by the searching unit, that the virtual machine group can be accommodated, and the communication response time between the virtual machines in the virtual machine group is more than the current communication response time a short set of physical machines for one purpose;

a determining unit, configured to determine whether a physical machine on which each virtual machine in the virtual machine group runs belongs to the determined set of target physical machines;

The migration unit is configured to migrate the virtual machine to the target physical machine set when the physical machine on which the virtual machine runs does not belong to the target physical machine set.

In a first possible implementation manner of the second aspect, the determining unit includes:

a first determining module, configured to: when all virtual machines in the virtual machine group are in different physical machines of the same subnet, determine a physical medium in the subnet that can accommodate the virtual machine group and includes the least number of physical machines Machine set And a first selection module, configured to select one of the set of physical machines determined by the first determining module as the set of physical machines of the destination.

In a second possible implementation manner of the second aspect, the determining unit includes:

a second determining module, configured to: when all virtual machines in the virtual machine group are in different physical machines of different subnets, determine, in the subnet, the virtual machine group that can accommodate the virtual machine group and the least number of subnets Web collection

a third determining module: configured to determine, in the set of subnets determined by the second determining module, a set of physical machines capable of accommodating the virtual machine group and having the least number of physical machines;

And a second selection module, configured to select one of the set of physical machines determined by the third determining module as the target physical machine set.

In a third possible implementation manner of the second aspect, the interface unit is further configured to send the migrated IP address of the virtual machine to the application management server after the migration unit performs the cross-subnet migration of the virtual machine.

With reference to the first possible implementation of the second aspect, in a fourth possible implementation, the first selecting module is further configured to: when the physical module set by the first determining module is multiple, select A set of physical machines that require the least number of virtual machine migrations in the virtual machine group is the set of physical machines for the purpose. With reference to the second possible implementation of the second aspect, in a fifth possible implementation, the second selecting module is further configured to: when the third determining module determines that there are multiple physical machine sets, The set of physical machines with the least number of virtual machine migrations in the virtual machine group is the set of destination physical machines. It can be seen from the above technical solution that the virtual machine is implemented by deploying the virtual machine in the virtual machine group that provides the collaborative group application on the premise that the number of subnets is the smallest and the physical machine set having the smallest number of physical machines is included. The virtual machine communication data in the group is quickly exchanged, thereby achieving the purpose of improving the application user experience.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor. 1 is a flowchart of a method for implementing virtual machine migration according to an embodiment of the present invention; FIG. 2 is a method for determining a method capable of accommodating a virtual machine group and enabling communication between virtual machines in a virtual machine group according to the method shown in FIG. Flowchart of a method embodiment of a set of destination physical machines having a response time that is shorter than the current communication response time;

3 is a flow chart of a method for migrating a virtual machine in a virtual machine group to a set of physical machines that does not belong to a set of physical machines in the virtual machine group according to the method shown in FIG. 1; FIG. A timing diagram of a plurality of users performing a group game provided by an embodiment;

6 is a structural diagram of a resource management server for implementing virtual machine migration according to another embodiment of the present invention;

FIG. 7 is a structural diagram of a resource management server for implementing virtual machine migration according to still another embodiment of the present invention;

FIG. 8 is a structural diagram of a resource management server based on a computer system according to still another embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Described from the perspective of a resource management server, an embodiment of the present invention provides a method for implementing virtual machine migration, and the process thereof is as shown in FIG. 1:

101. Receive information about a virtual machine group sent by an application management server, where the virtual machine group includes multiple virtual machines that complete a specified collaborative group application, where the information of the virtual machine group includes each of the virtual machine groups. The unique identifier of the virtual machine.

Specifically, the unique identifier of the virtual machine may be the current IP address or identifier ID of the virtual machine.

102. Search, according to information about the received virtual machine group, location information of each virtual machine in the virtual machine group, where the deployment location information includes a unique identifier of the subnet to which the virtual machine belongs and the virtual machine runs. The unique identifier of the physical machine. 103. Determine, according to the deployed location information of the discovered virtual machine, one that can accommodate the virtual machine group and that has a shorter communication response time between virtual machines in the virtual machine group than the current communication response time. The set of destination physical machines.

The step specifically includes: when the virtual machine in the virtual machine group runs on different physical machines in the same subnet, determining that the virtual machine group can be accommodated in the subnet, and the number of physical machines is the least Physical machine collection. If there is only one set of physical machines determined, the set of physical machines is used as a set of destination physical machines; if there are multiple sets of physical machines determined, the calculation migrates the virtual machines in the virtual machine group to each of the determined virtual machines. The number of physical machine sets that need to be migrated. Select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the destination physical machine set. The subnet determines that the virtual machine group can be accommodated and contains the number of subnets. The smallest set of subnets. A set of physical machines capable of accommodating the virtual machine group and containing the fewest number of physical machines is determined in the determined set of subnets. If there is only one set of physical machines determined, the set of physical machines is used as a set of destination physical machines; if there are multiple sets of physical machines determined, the calculation migrates the virtual machines in the virtual machine group to each of the determined virtual machines. The number of physical machine sets that need to be migrated. Select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the destination physical machine set. The destination physical machine set, when the physical machine on which the virtual machine runs does not belong to the target physical machine set, the virtual machine is migrated to the destination physical machine set.

The step may further include: if the migration is a cross-subnet migration, send the virtual machine migrated IP address to the application management server.

According to still another embodiment of the present invention, in the foregoing embodiment, determining, according to the found deployment location information of the virtual machine, a communication response between the virtual machines in the virtual machine group and the virtual machine group in the virtual machine group. A method of collecting a destination physical machine whose time is shorter than the current communication response time. The specific process is shown in Figure 2:

201. Determine whether all virtual machines in the virtual machine group are running on the same physical machine. If yes, go to step 202; if not, go to step 203.

202. There is no target physical machine set capable of accommodating the virtual machine group and the communication response time between each virtual machine in the virtual machine group is shorter than the current communication response time, and the process ends. 203. Calculate the sum of resources required by all virtual machines in the virtual machine group. If yes, proceed to step 205, and if not, proceed to step 210.

205. Let the initial value of the natural number variable k be 1.

206. Determine, in the subnet, whether there is a physical machine set that can simultaneously accommodate all virtual machines in the group, that is, the sum of resources allocated to the virtual machine group and the remaining idle resources in the set of physical machines is greater than Or equal to the sum of the resources calculated in step 203, and the number of physical machines included in the physical machine set is k. If yes, go to step 208, otherwise go to step 207.

207. Add 1 to the variable k value, and go to step 206.

208. Record the determined one or more physical machine sets as the candidate target physical machine set, and calculate the number of migrations required by the virtual machine in the virtual machine group for each candidate target physical machine set. Specifically, the calculation method for each candidate target physical machine set may be: for each virtual machine in the virtual machine group, determine which physical machine it runs on, and judge each virtual machine to run once for each virtual machine. Whether the physical machine belongs to the set of candidate physical machines, and the number of judgments that do not belong to the set of physical machines of the candidate object is accumulated, and the number of determinations is the number of migrations.

209. Selecting a candidate physical machine set with the least number of migrations (that is, the migration cost is the smallest) to cooperate as a target physical machine set. If there are multiple candidate physical machine sets with the least number of migration times, one of them is selected as the target physical machine set.

210. Let the initial value of the natural number variable k be 1.

211. Search, in the different subnets, whether there is a subnet set that can simultaneously accommodate all virtual machines in the group, that is, resources in the subnet set that have been allocated to virtual machines in the virtual machine group and remaining idle resources. The sum is greater than or equal to the sum of the resources calculated in step 203, and the set contains k subnets. If yes, go to step 213, otherwise go to step 212.

212. Add 1 to the variable k value, and go to step 211.

213. Record the found one or more subnet sets as a candidate subnet set, and make the initial value of the natural number variable s k, where k is the number of subnets included in the subnet set.

214. Search, in all the found candidate subnet sets, whether there is a physical machine set that can accommodate all the virtual machines in the virtual machine group, that is, resources and remaining resources in the physical machine set that have been allocated to the virtual machines in the virtual machine group. The sum of the idle resources is greater than or equal to the total resources calculated in step 203. And, and each physical machine set contains s physical machines. If yes, go to step 216, otherwise go to step 215.

215. Add 1 to the variable s value, and go to step 214.

216. Record the one or more physical machine sets that are found as a set of candidate physical machines, and calculate the number of migrations required by the virtual machines in the virtual machine group for each candidate physical machine set. Specifically, the calculation method for each candidate target physical machine set may be: for each virtual machine in the group, determine which physical machine it runs on, and judge each virtual machine to run for each virtual machine. Whether the physical machine belongs to the set of candidate physical machines, and the number of judgments that do not belong to the set of physical machines of the candidate object is accumulated, and the number of judgments is the number of migrations.

217. Selecting a target physical machine set with the least number of migrations (that is, the migration cost is the smallest) to cooperate as a target physical machine set; if there are multiple candidate physical machine sets with the least number of migration times, one of them is selected as the target physical machine set.

In the above embodiment, the number of physical machines that contain the least number of physical machines is found under the premise that the number of subnets is the smallest. Therefore, the communication response time between the virtual machine groups after the virtual machine group is deployed to the set is higher than that of the current virtual machine group. In the deployment mode, the communication response time between virtual machine groups is shorter.

A further embodiment of the present invention provides a virtual machine in which the physical machine running in the virtual machine group does not belong to the target physical machine set after determining a target physical machine set in the method for implementing virtual machine migration. The method of migrating to the collection of physical machines for this purpose, the flow of which is shown in Figure 3:

301. Read a subnet to which an IP address of each physical machine in the destination physical machine set belongs, and record a subnet collection.

302. All virtual machines in the virtual machine group are classified into three types. Type 1: the physical machine on which the virtual machine runs belongs to the physical machine set of the destination; Type 2: the physical machine on which the virtual machine runs does not belong to the physical machine. The destination physical machine is set, but the subnet to which the physical machine belongs belongs to the subnet collection; Type 3: the physical machine on which the virtual machine runs does not belong to the physical machine set of the destination, and the subnet to which the physical machine belongs does not belong to the subnet. Web collection.

303. For each virtual machine of type 2, find, in the destination physical machine set, whether there is a physical machine that belongs to the same subnet as the physical machine on which the virtual machine is running and has idle resources, and if so, migrate the virtual machine. Go to the physical machine, otherwise randomly migrate to any physical machine with idle resources in the destination physical machine set. 304. For each virtual machine of type 3, randomly migrate to any physical machine with idle resources in the destination physical machine set.

In the above embodiment, the virtual machine on which the physical machine on which the physical machine is not located belongs to the physical machine of the same subnet as the physical machine on which the virtual machine is running, so that the cross-network segment can be reduced. Migrate, and can minimize the system resources consumed by the migration.

One embodiment of the present invention describes a method for implementing virtual machine migration in a timing diagram. As shown in FIG. 4, users userl, user2, and user3 are to perform a group game. The detailed implementation steps are as follows. 4 Set these three users before the group game, the application management server has assigned them a virtual machine for providing game services, the specific allocation method may be the user launching the game application on the terminal (login game platform) After the application management server requests the resource management server to allocate a virtual machine for him, or after the user joins a specific game, the application management server requests the resource management server to allocate a virtual machine for him. Only after the user exits the game platform will the system log out the virtual machine resources assigned to him:

5401, the user userl accesses the game application on the virtual machine VM1 (the identifier is ID1, the IP address is ipl) allocated to him through the terminal UE1, and clicks the "new room" button, and the VM1 sends a new game room to the application management server. Request. After the application management server receives the request, the game room A is initialized, that is, the game group with the group number A is created; and, the virtual machine group with the group number A is created, and the virtual machine group A and the game group A are created. Bind. VM1 is added to virtual machine group A, and the information of virtual machine group A (including virtual machine group number A, virtual machine VM1 identifier and IP address information) is recorded.

5402, the user user2 accesses the game application on the virtual machine VM2 (the identifier is ID2, the IP address is ip2) assigned to him through his terminal UE2, sees the game room A, clicks the "join" button; VM2 will manage to the application The server sends a request to join the group game, and the application management server adds VM2 to the virtual machine group A, and refreshes the information of the virtual machine group A (including the identifiers and IP address information of the group number A, the virtual machines VM1 and VM2; ), and establish a communication connection between virtual machines VM1 and VM2.

5403. The user user3 accesses the game application on the virtual machine VM3 (the identifier is ID3 and the IP address is ip3) through the UE3, and joins the virtual machine group A, and the processing manner is similar to step S402.

5404, the user userl checks through the terminal that the current game room A meets the number of game starts. Limit, click the "Start Game" button, VM1 sends a request to start the application to the application management server, requesting the group number A containing the group game.

S405. After receiving the request sent by the VM1, the application management server determines that the group is a start request of the group game according to the included group number, and sends the information of the virtual machine group A bound to the game group A to the resource. The management server, the information of the virtual machine group A includes the virtual machine VM1, VM2 and V M3 identifier array VMID[]={ID1, ID2, ID3} in the virtual machine group A.

S406. The resource management server searches for the unique identifier of the subnet to which VM1, VM2, and VM3 belong and the unique identifier of the physical machine on which VM1 is located according to the identifier array VMID[]={ID1, ID2, ID3} of the virtual machine in the group.

S407. The resource management server determines a set of physical machines that can accommodate the three virtual machines VM1, VM2, and VM3 and have a communication response time shorter than the current one.

Generally, there are three different situations in the distribution of virtual machines in a virtual machine group: Case 1. All virtual machines in a virtual machine group run on the same physical machine; Case 2. Virtual machine running in a virtual machine group On different physical machines on the same subnet; Case 3. The virtual machines in the virtual machine group run on different physical machines on different subnets.

Specifically, in this embodiment, for scenario 1, the three virtual machine deployment location information acquired by the resource management server, VM1, VM2, and VM3, is: subnet array VMNS[]={subnet A, subnet A, sub Network A} and physical machine number array MID[]={M1, M1, M1}. For case 2, the three virtual machine deployment location information obtained by the resource management server is: subnet array VMNS[]={subnet A, subnet A, subnet A} and physical machine number array MID[]={M1, M1, M2}. For case 3, the three virtual machine deployment location information obtained by the resource management server is: subnet array VMNS[]={subnet A, subnet A, subnet B} and physical machine number array MID[]={M1, M1, M3}.

Corresponding to these three cases, in step S407, the resource management server determines the process of accommodating the above-mentioned VM1, VM2, VM3, and letting the communication response time between them be shorter than the current migration destination physical machine set as follows:

For the situation 1. All virtual machines in the virtual machine group have been running on the same physical machine M1, and there is no set of physical machines that meet the requirements;

For the case 2. After determining that the three virtual machines in the virtual machine group are running on different physical machines, calculate the total system resources required by the three virtual machines to be 3. Further judge these three virtual The machine runs on the same subnet A, so that the initial value of the natural number variable k is 1, and after searching, the number of available resources of the physical machine M2 is 6 (including the resources already allocated to VM3), The usable resources of the physical machine set {Ml} and {M2} containing only one physical machine are both greater than 3, and the sets {Ml} and {M2} are recorded as a set of candidate physical machines.

For the candidate physical machine set {Ml}, the virtual machine VM1 runs on M1 and belongs to the set {Ml}, the virtual machine VM2 runs on M1, belongs to the set {Ml}, and the VM3 runs on M2, does not belong to the set {Ml}, so The cumulative number of times belonging to the set {Ml} is 1, that is, the number of migrations is 1. In the same manner, for the candidate physical machine set {M2}, the number of migrations is calculated to be 2. In the candidate destination physical machine set, select the {Ml} with the least number of migrations as the destination physical machine set.

For the situation 3. After determining that the three virtual machines in the virtual machine group are running on different physical machines, calculate the total system resources required by the three virtual machines to be 3. It is further determined that the three virtual machines are running on different subnets A and B, so that the initial value of the natural number variable k is 1, and after searching, the number of available resources of the subnet A is 11 (including the already allocated VM1) And the resources of VM2), the number of available resources of subnet B is 6 (including the resources already allocated to VM3), and it is judged that the available resources of subnet sets {A} and {B} containing only one subnet number are Greater than 3, records the subnet collections {A} and {B} as candidate subnet collections.

Let the initial value of the natural number variable s be k (k=l, so the initial value of s is 1). After searching, the number of usable resources of the physical machine M1 contained in the subnet A is 5 (including the already allocated to The resources of VM1 and VM2), the number of available resources of physical machine M2 is 6 (including resources already allocated to VM3), and the number of available resources of physical machine M3 included in subnet B is 6 (including already allocated to VM3) Resources), judging that the set of candidate machines {A} and {B} contains only one physical machine's physical machine set {Ml} and {M2}, {M3}'s usable resources are greater than 3, will be set { Ml} and {M2}, {M3} are recorded as a collection of candidate physical machines.

For the candidate physical machine set {Ml}, the virtual machine VM1 runs on M1, belongs to the set {Ml}, the virtual machine VM2 runs on M1, belongs to the set {Ml}, and the VM3 runs on M3, does not belong to the set {Ml}, so The cumulative number of times belonging to the set {Ml} is 1, that is, the number of migrations is 1. In the same manner, for the candidate physical machine set {M2}, the number of migrations is calculated to be 3, and for the candidate physical machine set {M3}, the calculation is performed. The number of migrations is 2. In the candidate target physical machine set, select {Ml} with the least number of migrations as the target physical machine set. S408. The resource management server determines whether the physical machine on which the virtual machines VM1, VM2, and VM3 are located in the virtual machine group belongs to the set of destination physical machines calculated by S407, and the set of physical machines that are running on the physical machine does not belong to the target physical machine set. The virtual machine is migrated to the destination physical machine set by the virtual machine hot migration technology. If the migration is a cross-subnet migration, the application management server sends a message to notify the virtual machine information and the unique information of the virtual machine. Logo.

According to the determination result for the case 1 in the step S407, there is no target physical machine set satisfying the condition, and no migration is required.

According to the target physical machine set calculated for the case 2 in the step S407, the virtual machine that does not belong to the target physical machine set in this step, and the specific process of migrating it to the destination physical machine set by using the virtual machine hot migration technology is as follows:

The destination physical machine set {Ml} contains the physical machine Ml, Ml belongs to subnet A, and records the subnet set {A}. Classify the three virtual machines in the virtual machine group, where VM1 and VM2 belong to type 1, and the physical machine M1 on which it belongs belongs to the set of destination physical machines, where VM3 belongs to type 2, and the physical machine M2 on which it runs does not belong to the destination. The physical machine collection, but the subnet A to which M2 belongs belongs to the subnet collection {A}. For VM3 belonging to type 2, it is found in the destination physical machine set {Ml} that M1 has idle resources, and belongs to the same subnet as the physical machine M2 on which VM3 runs, and the resource management server sends heat to the physical machine M2 where VM3 is located. The migration command migrates VM3 to Ml because the IP address of VM3 does not need to be changed during the same subnet migration.

According to the physical machine set calculated for the case 3 in the step S407, the virtual machine that does not belong to the target physical machine set in this step, and the specific process of migrating it to the destination physical machine set by using the virtual machine hot migration technology is as follows:

The destination physical machine set {Ml} contains the physical machine M1, and Ml belongs to the subnet A, and records the subnet set {A}. Classify the three virtual machines in the virtual machine group, where VM1 and VM2 belong to type 1, and the physical machine M1 on which it belongs belongs to the set of destination physical machines, where VM3 belongs to type 3, and the physical machine M3 on which it runs does not belong to the destination. The collection of physical machines, the subnet B to which M3 belongs does not belong to the subnet collection { A}. The physical machine having the idle resource in the destination physical machine set {Ml } is M1, and M1 is selected as the migration destination physical machine of VM3. The resource management server sends a hot migration command to the physical machine M3 where the VM3 is located, and migrates the VM3 to M1. The IP address of the migrated virtual machine VM3 is ip4. The migration is a cross-subnet migration, sending the virtual machine migration information to the application management server, including the identifier ID3 of the VM3 and the new IP address ip4. S409, the application management server updates the group virtual machine information; Case 1, Case 2 does not need to be updated; Case 3: The application management server updates the information of the group VM of the group A it maintains, and quickly establishes the user terminal UE3 and after the migration The virtual machine VM3 is connected, and the game application communication connection between VM1 and VM3, VM2 and VM3 is quickly established based on the new IP address of VM3.

As shown in FIG. 5, the resource management server 500 includes:

The interface unit 501 is configured to receive information about a virtual machine group sent by the application management server, where the virtual machine group includes multiple virtual machines that complete the specified collaborative group application, where the information of the virtual machine group includes the virtual machine group A unique identifier for each virtual machine in the group. Specifically, the unique identifier of the virtual machine may be the current IP address or identifier ID of the virtual machine;

The searching unit 502 is configured to search, according to the information of the virtual machine group received by the interface unit 501, deployment location information of each virtual machine in the virtual machine group, where the deployment location information includes each virtual machine in the virtual machine group. a unique identifier of the local subnet and a unique identifier of the physical machine on which it is located; a determining unit 503, configured to determine, according to the deployment location information of the virtual machine found by the searching unit 502, the virtual machine group can be accommodated and a set of destination physical machines whose communication response time between virtual machines in the virtual machine group is shorter than the current communication response time;

The determining unit 504 is configured to determine whether a physical machine on which each virtual machine in the virtual machine group runs belongs to the determined set of target physical machines;

The migration unit 505 is configured to migrate the virtual machine to the target physical machine set when the physical machine on which the virtual machine runs does not belong to the set of destination physical machines determined by the determining unit 503;

Optionally, the interface unit 501 is further configured to: after the migration unit 505 performs the cross-subnet migration of the virtual machine, send the migrated IP address to the application management server.

Referring to FIG. 6, in the resource management server 500, the determining unit 503 may further include:

The first determining module 5031 is configured to: when all the virtual machines in the virtual machine group are in different physical machines of the same subnet, determine that the virtual machine group can be accommodated in the subnet, and the number of physical machines is the smallest. Physical machine set;

The first selection module 5032 is configured to select one of the physical machine sets determined by the first determining module 5031 as the target physical machine set; for example, in the first determining module 5031 When there are multiple physical machine sets determined, select one physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the destination physical machine set.

Referring to FIG. 7, in the resource management server 500, the determining unit 503 may further include:

The second determining module 5033 is configured to: when all virtual machines in the virtual machine group are in different physical machines of the same subnet, determine that the virtual machine group can be accommodated in all the subnets, and the number of subnets is the smallest. Subnet collection

The third determining module 5034 is configured to determine, in the set of subnets determined by the second determining module 5033, a set of physical machines that can accommodate the virtual machine group and include the least number of physical machines;

The second selection module 5035 is configured to select one of the set of physical machines determined by the third determining module 5034 as the target physical machine set; for example, how many physical machine sets are determined by the third determining module 5034. At this time, select a set of physical machines that require the least number of virtual machine migrations in the virtual machine group as the destination physical machine set. The resource management server in the embodiment of the present invention may be implemented based on a computer system, and the methods shown in FIG. 1 to FIG. 4 may all be implemented in a resource management server based on a computer system. Figure 8 illustrates an embodiment of a resource management server implemented in accordance with a computer system. The resource management server in this embodiment may include: a processor 801, a memory 802, and a communication interface 803, where:

The communication interface 803 is configured to communicate with an application management server. Messages that interact between the resource management server and the application management server (as shown in Figures 1-4 of the method embodiment) are both sent and received via communication interface 803. Specifically, the communication interface 803 is configured to receive information about a virtual machine group sent by the application management server, and send the migrated IP address to the application management server when the virtual machine cross-subnet migration occurs; the storage 802 is used to: The processor 801 is configured to: after receiving the information of the virtual machine group sent by the application management server, invoke the program instructions stored in the memory 802, and perform the following operations: searching for the location according to the information of the virtual machine group. The deployment location information of each virtual machine in the virtual machine group, where the deployment location information of the virtual machine includes a unique identifier of the subnet to which the virtual machine belongs and a unique identifier of the physical machine on which the virtual machine is located; Deploying location information of the machine, determining that the communication response time can be accommodated by the virtual machine group, and the communication response time between the virtual machines in the virtual machine group is shorter than the current communication response time Purpose physical machine set, when the physical machine on which the virtual machine is running does not belong to When the target physical machine set is described, the virtual machine is migrated to the target physical machine set.

The processor 801 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or the like. The resource management server in this embodiment may include a bus 804. The processor 801, the memory 802, and the communication interface 803 can be connected and communicated via the bus 804. The memory 802 may include: a random access memory (RAM), a read-only memory (ROM), a disk and the like having a storage function;

The processor 801 can also be used to perform the steps described in FIG. 1 to FIG. 4 in the method embodiment, and the embodiments of the present invention are not described in detail herein.

The foregoing provides a detailed description of the present invention. The principles and embodiments of the present invention are described herein with reference to specific examples. The description of the above embodiments is only to assist in understanding the method of the present invention and its core ideas; In the meantime, the present invention is not limited by the scope of the present invention.

Claims

Rights request

1. A method for implementing virtual machine migration, characterized in that the method includes: receiving information about a virtual machine group sent by an application management server, where the virtual machine group includes multiple machines that complete designated collaborative group applications. Virtual machine, the information of the virtual machine group includes the unique identifier of each virtual machine in the virtual machine group;

According to the information of the virtual machine group, search the deployment location information of each virtual machine in the virtual machine group. The deployment location information of the virtual machine includes the unique identifier of the subnet to which the virtual machine belongs and the running The unique identifier of the physical machine;

According to the deployment location information of the virtual machine, determine a destination physical entity that can accommodate the virtual machine group, and after accommodation, the communication response time between the virtual machines in the virtual machine group is shorter than the current communication response time. machine set; out of the destination physical machine set, when the physical machine on which the virtual machine runs does not belong to the destination physical machine set, migrate the virtual machine to the destination physical machine set.

2. The method of claim 1, wherein the method of determining a destination physical machine set that can accommodate the virtual communication response time shorter includes:

When all the virtual machines in the virtual machine group are on different physical machines in the same subnet, determine the set of physical machines in the subnet that can accommodate the virtual machine group and contains the smallest number of physical machines;

Select one of the physical machine sets as the destination physical machine set.

3. The method of claim 2, wherein the selecting one of the physical machine sets as the target physical machine set specifically includes:

If there are multiple determined physical machine sets, select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the destination physical machine set.

4. The method of claim 1, wherein the method of determining a set of destination physical machines capable of accommodating the virtual communication response time that is shorter includes: Among all the subnets, a set of subnets that can accommodate the virtual machine group and contains the smallest number of subnets;

Determine the physical machine set that can accommodate the virtual machine group and contains the smallest number of physical machines in the subnet set;

5. The method of claim 4, wherein selecting one of the physical machine sets as the target physical machine set includes:

If there are multiple determined physical machine sets, select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the target physical machine set.

6. The method of claim 1, wherein said migrating the virtual machine to the target set of physical machines further includes:

If the migration is a cross-subnet migration, send the migrated IP address of the virtual machine to the application management server.

7. A resource management server, including:

The interface unit is configured to receive information about the virtual machine group sent by the application management server. The virtual machine group includes multiple virtual machines that complete the specified collaborative group application. The information about the virtual machine group includes the virtual machine group. The unique identifier of each virtual machine in the cluster;

A search unit configured to search the deployment location information of each virtual machine in the virtual machine group according to the information of the virtual machine group received by the interface unit, where the deployment location information of the virtual machine includes the virtual machine group. The unique identifier of the subnet to which the machine belongs and the unique identifier of the physical machine it runs on; a determination unit, configured to determine, based on the deployment location information of the virtual machine found by the search unit, the group that can accommodate the virtual machine. And after accommodating a set of destination physical machines whose communication response time between virtual machines in the virtual machine group is shorter than the current communication response time; whether it belongs to the determined set of destination physical machines;

A migration unit, configured to migrate the virtual machine to the target physical machine set when the physical machine on which the virtual machine runs does not belong to the target physical machine set.

8. The resource management server according to claim 7, characterized in that the determining unit includes:

The first determination module is used to determine whether all virtual machines in the virtual machine group are in the same subnet. When the same physical machine is used, determine the set of physical machines in the subnet that can accommodate the virtual machine group and contains the smallest number of physical machines;

The first selection module is configured to select one of the physical machine sets determined by the first determination module as the destination physical machine set.

9. The resource management server as claimed in claim 8, characterized in that:

The first selection module is further configured to, when there are multiple physical machine sets determined by the first determination module, select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the physical machine set. A collection of physical machines for the stated purpose.

10. The resource management server according to claim 7, wherein the determining unit includes: when a physical machine is used, it is determined that all subnets can accommodate the virtual machine group and contain a minimum number of subnets. A collection of subnets;

The third determination module: configured to determine, among the subnet sets determined by the second determination module, a set of physical machines that can accommodate the virtual machine group and contain the smallest number of physical machines;

The second selection module is configured to select one of the physical machine sets determined by the third determination module as the target physical machine set.

11. The resource management server as claimed in claim 10, characterized in that:

The second selection module is further configured to, when there are multiple physical machine sets determined by the third determination module, select a physical machine set that requires the least number of virtual machine migrations in the virtual machine group as the physical machine set. A collection of physical machines for the stated purpose.

12. The resource management server as claimed in claim 7, characterized in that:

The interface unit is also configured to send the migrated IP address of the virtual machine to the application management server after the migration unit performs cross-subnet migration of the virtual machine.