CN111698164B - Network routing method and device of virtual machine and management server - Google Patents
Network routing method and device of virtual machine and management server Download PDFInfo
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- CN111698164B CN111698164B CN202010533235.2A CN202010533235A CN111698164B CN 111698164 B CN111698164 B CN 111698164B CN 202010533235 A CN202010533235 A CN 202010533235A CN 111698164 B CN111698164 B CN 111698164B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/14—Routing performance; Theoretical aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
Abstract
The disclosure provides a network routing method and device of a virtual machine and a management server, and relates to the field of cloud computing. The method comprises the following steps: when a migration instruction of a virtual machine to be migrated is received, acquiring a target server operated after the virtual machine to be migrated is migrated from a currently operated physical server; and providing the second path address of the virtual machine to be migrated to a physical server connected with the management server according to the target server, so that the physical server routes data accessing the virtual machine to be migrated to the currently running physical server and the target server according to the second path address and the pre-stored first path address. In the method, when the virtual machine is migrated, the first path address and the second path address are stored in the physical server connected with the management server, so that the physical server or the target server which is currently operated during migration of the virtual machine can receive access data, the network continuity during migration of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
Description
Technical Field
The present invention relates to the field of virtual machine migration technologies, and in particular, to a network routing method, an apparatus, and a management server for a virtual machine.
Background
A virtual machine generally refers to a computer system that has complete hardware system functionality and runs on a physical server, which is emulated by software. A cloud network usually includes a plurality of physical servers, each physical server may run a plurality of virtual machines, each physical server may forward data to a virtual machine through a virtual switch of the physical server, each physical server has a unique corresponding physical gateway, and each physical gateway may be configured with at least one virtual gateway of a virtual machine. Generally, a virtual machine can be migrated from one physical server to another physical server, the virtual gateway of the migrated virtual machine is not changed, and the position of the virtual gateway is located on the migrated physical server, so that the virtual machine runs on the migrated physical server. However, in the process of migrating the virtual machine, the physical location of the virtual machine changes, and the virtual gateway of the virtual machine may still be located on the physical gateway of the physical server before migration, which affects the continuity of the migrated virtual machine network.
In order to ensure the continuity of a Network during Virtual machine migration, in the related technology, a Virtual machine migration mode for a VxLAN (Virtual extended Local Area Network) Network is provided, in the mode, on the premise that a Virtual gateway before and after Virtual machine migration is not changed, migration information of a Virtual machine is notified to an SDN controller through a management platform, and the SDN (Software Defined Network) controller controls the data forwarding direction of the Virtual machine, but the mode is difficult to be applied to Virtual machine migration of a distributed Virtual switch; in the related art, an openflow technology can also be adopted to send a message about failure of the flow table of the migration virtual machine to other virtual machines except the migration virtual machine, so that the original flow tables of the other virtual machines are failed, and a new flow table is generated.
Disclosure of Invention
The invention aims to provide a network routing method, a network routing device and a management server of a virtual machine, so as to avoid packet loss while ensuring the continuity of a network during the migration of the virtual machine.
In a first aspect, an embodiment of the present invention provides a network routing method for a virtual machine, where the method is applied to a management server, and the management server is connected to multiple physical servers running the virtual machine; storing a first path address of a virtual machine in the physical server; the method comprises the following steps: if a migration instruction of the virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein, the target server is: the physical server operated after the virtual machine to be migrated is migrated from the currently operated physical server; and providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server which are operated by the virtual machine to be migrated currently according to the first path address and the second path address.
In an optional embodiment, the management server stores routing addresses of a plurality of physical servers; the step of providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server includes: inquiring the routing address of a target server from the routing addresses of a plurality of physical servers; and generating a second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers.
In an optional embodiment, each physical server stores first routing configuration information; the first routing configuration information comprises first path addresses of a plurality of virtual machines in a preset network range; the step of generating the second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers includes: generating second routing configuration information based on the routing address of the target server; the second routing configuration information comprises a second path address of the virtual machine to be migrated; and sending the second routing configuration information to the plurality of physical servers.
In an optional implementation manner, after the step of providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, the method further includes: and if the instruction of completing the migration of the virtual machine to be migrated is received, deleting the first path address of the virtual machine to be migrated in the physical server.
In a second aspect, an embodiment of the present invention provides a network routing method for a virtual machine, where the method is applied to a physical server; the physical server runs at least one virtual machine, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; the method comprises the following steps: receiving a second path address of the virtual machine to be migrated, which is provided by the management server; wherein the second path address is provided by the management server by: if a migration instruction of the virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein, the target server is: the physical server operated after the virtual machine to be migrated is migrated from the currently operated physical server; and if the data for accessing the virtual machine to be migrated is received, routing the data to a physical server and a target server which are operated by the virtual machine to be migrated at present according to the first path address and the second path address.
In an optional implementation manner, after the step of receiving the second path address of the virtual machine to be migrated, which is provided by the management server, the method further includes: and if an instruction for deleting the first path address of the virtual machine to be migrated, which is sent by the management server, is received, deleting the first path address of the virtual machine to be migrated.
In a third aspect, an embodiment of the present invention provides a network routing apparatus for a virtual machine, where the apparatus is disposed in a management server, and the management server is connected to multiple physical servers running the virtual machine; storing a first path address of a virtual machine in the physical server; the device includes: the target server acquisition module is used for acquiring a target server of the virtual machine to be migrated if a migration instruction of the virtual machine to be migrated is received; wherein, the target server is: the physical server operated after the virtual machine to be migrated is migrated from the currently operated physical server; and the path address providing module is used for providing a second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server which are operated currently by the virtual machine to be migrated according to the first path address and the second path address.
In a fourth aspect, an embodiment of the present invention provides a network routing apparatus for a virtual machine, where the apparatus is disposed in a physical server; the physical server runs at least one virtual machine, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; the device includes: the path address receiving module is used for receiving a second path address of the virtual machine to be migrated, which is provided by the management server; wherein the second path address is provided by the management server by: if a migration instruction of the virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein, the target server is: the physical server operated after the virtual machine to be migrated is migrated from the currently operated physical server; and the data routing module is used for routing the data to a physical server and a target server which are operated by the virtual machine to be migrated at present according to the first path address and the second path address if the data for accessing the virtual machine to be migrated is received.
In a fifth aspect, an embodiment of the present invention provides a management server, where the management server includes a processor and a memory, where the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to implement the network routing method for a virtual machine according to the first aspect.
In a sixth aspect, an embodiment of the present invention provides a physical server, where the physical server includes a processor and a memory, where the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to implement the network routing method for a virtual machine according to the second aspect.
In a seventh aspect, an embodiment of the present invention provides a machine-readable storage medium storing machine-executable instructions, which when invoked and executed by a processor, cause the processor to implement the network routing method of the virtual machine.
The embodiment of the invention has the following beneficial effects:
the invention provides a network routing method, a network routing device and a management server of a virtual machine, wherein the management server is connected with a multi-core physical server running with the virtual machine, if a migration instruction of the virtual machine to be migrated is received, a target server of the virtual machine to be migrated is obtained, and the target server is a physical server which runs after the virtual machine to be migrated is migrated from the currently running physical server; and then providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the second path address and the first path address stored in the physical server. According to the method, before the virtual machine to be migrated is migrated, the management server provides the second path address of the virtual machine to be migrated in the target server after the virtual machine to be migrated is migrated to the connected physical server, and in the migration process of the virtual machine to be migrated, because the first path address and the second path address of the virtual machine to be migrated in the current server are stored in the physical server, data accessing the virtual machine to be migrated are routed to the physical server and the target server where the virtual machine to be migrated currently runs in the migration process of the virtual machine to be migrated, the physical server and the target server which are currently running can receive the access data, the continuity of network data in the migration process of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention as set forth above.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a network routing scenario of a virtual machine according to an embodiment of the present invention;
fig. 2 is a flowchart of a network routing method for a virtual machine according to an embodiment of the present invention;
fig. 3 is a flowchart of another network routing method for a virtual machine according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a network route of a virtual machine according to an embodiment of the present invention;
fig. 5 is a schematic diagram of network routing of another virtual machine according to an embodiment of the present invention;
fig. 6 is a schematic diagram of network routing of another virtual machine according to an embodiment of the present invention;
fig. 7 is a flowchart of another network routing method for a virtual machine according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a network routing apparatus of a virtual machine according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another network routing apparatus for a virtual machine according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a management server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Migration of a Virtual Machine (VM for short) is a problem that must be solved for both a private cloud and a public cloud network, and a cloud network that cannot be migrated is not robust, and for offline migration of a Virtual Machine, a very stable scheme is provided because the problem of network continuity in the migration process does not need to be considered; however, for live migration of a virtual machine (which may be understood as online migration), it is necessary to ensure network continuity during the virtual machine migration process, that is, when other virtual machines communicate with the migrated virtual machine, it is necessary to know the physical gateway of the physical server after migration, so that the data to be transmitted can be accurately sent to the virtual machine after migration. Based on this, the migration of the virtual machine mentioned in the following description may be understood as the live migration of the virtual machine.
In the related art, a virtual machine migration mode for a VxLAN network is provided, in the mode, on the premise that a virtual gateway before and after virtual machine migration is not changed, migration information of a virtual machine is notified to an SDN controller through a management platform, and the SDN controller controls the data forwarding direction of the virtual machine, but the mode is difficult to be applied to virtual machine migration of a distributed virtual switch.
In order to be suitable for virtual machine migration of a distributed virtual switch, the related art may also use openflow technology to send a message about failure of a flow table of a migrated virtual machine to other virtual machines except the migrated virtual machine, so as to cause failure of original flow tables of the other virtual machines. When communication with a migration virtual machine is needed, a new flow table is generated because an original flow table is invalid, and information contained in the new flow table is information after the migration of the migration virtual machine, so that connectivity of a network after the migration of the virtual machine is ensured.
Based on the above description, embodiments of the present invention provide a network routing method and apparatus for a virtual machine, and a management server, where the technology may be applied in a scenario of virtual machine migration in a private cloud network or a public cloud network, especially in a scenario of network migration in a virtual machine migration process.
In order to facilitate understanding of the embodiment, first, a detailed description is given to a network routing method for a virtual machine disclosed in the embodiment of the present invention, where the method is applied to a management server, and the management server is connected to a plurality of physical servers running virtual machines; as shown in fig. 1, which is a schematic view of a network routing scenario of a virtual machine, a management server in fig. 1 may generally manage all physical servers in a public cloud network or a private cloud network, that is, the management server may be connected to a plurality of physical servers, each physical server may run a plurality of virtual machines, each physical server stores a first path address of a virtual machine, and the management server is configured to manage routing information of each virtual machine in the physical servers; as shown in fig. 2, the method comprises the steps of:
step S202, if a migration instruction of the virtual machine to be migrated is received, a target server of the virtual machine to be migrated is obtained; wherein, the target server is: and migrating the virtual machine to be migrated from the currently running physical server to the running physical server.
The virtual machine to be migrated is a virtual machine to be migrated, the virtual machine to be migrated needs to be migrated from a currently running physical server to a target server, the target server may be any physical server connected to the management server except the currently running physical server of the virtual machine to be migrated, and the currently running physical server of the virtual machine to be migrated may also be understood as a physical server running before the virtual machine to be migrated is migrated. The physical server is usually a stand-alone server, i.e. a physically separate server, and the physical server is composed of a processor, a hard disk, a memory, a system bus, etc., and is similar to a general computer architecture.
Generally, the management server is deployed with a management service, and may issue configuration information of a virtual machine or a data routing rule to a physical server running the virtual machine. Generally, a first path address of a virtual machine to be migrated is stored in each physical server connected with a management server, other virtual machines communicating with the virtual machine to be migrated can route data communicated with the virtual machine to be migrated to a physical server operated by the virtual machine to be migrated through the first path address, and the physical server forwards the data to the virtual machine to be migrated; the first path address stores a routing address of a physical service currently running in the virtual machine to be migrated (equivalent to the physical gateway) and a routing address of the virtual machine to be migrated (equivalent to the virtual gateway).
In specific implementation, when the virtual machine to be migrated needs to be migrated, a preset migration tool may send a migration instruction of the virtual machine to be migrated to the management server, where the migration tool may be migration software, and the software may call an interface of the management service and send the instruction to the interface; if the migration instruction carries the target server to which the virtual machine to be migrated is migrated, the management server can directly determine the target server; if the migration instruction does not carry the target server of the virtual machine to be migrated, the management server may determine the target server according to the current operating conditions of the plurality of physical servers connected to the management server.
Step S204, according to the target server, providing the second path address of the virtual machine to be migrated to the physical server, so that the physical server routes the data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the first path address and the second path address.
The management server may obtain a second path address of the virtual machine to be migrated according to the obtained target server, where the second path address may represent a position of the virtual machine to be migrated in the target server. The management server may send the second path address of the virtual machine to be migrated to all physical servers connected to the management server, and at this time, the first path address and the second path address of the virtual machine to be migrated are stored in all the physical servers connected to the management server.
In the process of migrating the virtual machine to be migrated, when other virtual machines except the virtual machine to be migrated need to communicate with the virtual machine to be migrated, the other virtual machines can route data accessing the virtual machine to be migrated to a physical server running before the virtual machine to be migrated and a target server running after the virtual machine to be migrated according to a first path address and a second path address stored in a physical server running in the other virtual machines, so that the virtual machine to be migrated can receive access data forwarded by the physical server before the virtual machine to be migrated or access data forwarded by the target server to ensure network connectivity of the virtual machine to be migrated in the migration process and simultaneously ensure no packet loss phenomenon, and the virtual machine migration process is completely insensitive to users, the experience of the user is improved.
In the network routing method for the virtual machine provided by the embodiment of the invention, if a management server receives a migration instruction of a virtual machine to be migrated, a target server of the virtual machine to be migrated is obtained, wherein the target server is a physical server operated after the virtual machine to be migrated is migrated from a currently operated physical server; and then providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the second path address and the first path address stored in the physical server. According to the method, before the virtual machine to be migrated is migrated, the management server provides the second path address of the virtual machine to be migrated in the target server after the virtual machine to be migrated is migrated to the connected physical server, and in the migration process of the virtual machine to be migrated, because the first path address and the second path address of the virtual machine to be migrated in the current server are stored in the physical server, data accessing the virtual machine to be migrated are routed to the physical server and the target server where the virtual machine to be migrated currently runs in the migration process of the virtual machine to be migrated, the physical server and the target server which are currently running can receive the access data, the continuity of network data in the migration process of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
The embodiment of the invention also provides another network routing method of the virtual machine, which is realized on the basis of the method in the embodiment; the method mainly describes a specific process of providing a second path address of a virtual machine to be migrated to a plurality of physical servers according to a target server (realized by steps S304-S306 described below); as shown in fig. 3, the method comprises the steps of:
step S302, if a migration instruction of the virtual machine to be migrated is received, a target server of the virtual machine to be migrated is obtained; wherein, the target server is: and migrating the virtual machine to be migrated from the currently running physical server to the running physical server.
In step S304, the management server searches for the routing address of the destination server from among the routing addresses of the plurality of physical servers stored in the management server.
The management server may pre-store a routing address (corresponding to the physical gateway) of each physical server connected thereto, and the management server may determine a target server of the virtual machine to be migrated according to the migration instruction of the virtual machine to be migrated, and then query the routing address of the target server from the routing address of each physical server.
In some embodiments, each physical server further corresponds to a unique identity, and the management server stores the identity of each physical server in advance, so that the management server can determine the target server according to the identity of the target server to obtain the routing address corresponding to the target server.
Step S306, generating a second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the first path address and the second path address.
The management server may combine the path address of the target server with the routing address of the virtual machine to be migrated to generate a second path address of the virtual machine to be migrated, where the second path address also represents a position of the virtual machine to be migrated in the target server.
During specific implementation, the physical server stores first route configuration information; the first routing configuration information comprises first path addresses of a plurality of virtual machines in a preset network range; the preset network range can be a routing address allowed under a private cloud network or a public cloud network. The step S306 can be realized by the following steps 10-11:
step 10, generating second routing configuration information based on the routing address of the target server; and the second routing configuration information comprises a second path address of the virtual machine to be migrated.
The management server may generate second routing configuration information of the virtual machine to be migrated according to the routing address of the target server, where the second routing configuration information includes a second path address of the virtual machine to be migrated, IP (Internet Protocol ) information of the target server, and the like.
And 11, sending the second routing configuration information to a plurality of physical servers.
After generating the second routing configuration information, the management server sends the second routing configuration information to a physical server connected with the management server, so that when the physical server receives data for accessing the virtual machine to be migrated, the physical server can send the access data to a physical server and a target server which are currently operated by the virtual machine to be migrated according to the first routing configuration information and the second routing configuration information, and forward the access data to the virtual machine to be migrated through the physical server or the target server which is currently operated by the virtual machine to be migrated.
Step S308, if the instruction of completing the migration of the virtual machine to be migrated is received, deleting the first path address of the virtual machine to be migrated in the physical server.
When the migration of the virtual machine to be migrated is completed, that is, when the virtual machine to be migrated starts to run at the target server, the management server receives an instruction sent by the migration tool to complete the migration of the virtual machine to be migrated, and sends a deletion instruction to a physical server connected with the management server so as to delete the first path address or the first route configuration information of the virtual machine to be migrated in the physical server. Therefore, after migration is finished, only the path address or configuration information of one virtual machine to be migrated is stored in the physical server.
In some embodiments, a virtual switch, which may be a distributed virtual switch, is generally operated in the physical server, and the management server generally sends the second path address of the virtual machine to be migrated to the virtual switch of the physical server. When the migration of the virtual machine to be migrated begins, the management server generates a new configuration (equivalent to the second routing configuration information) according to the target server, where the configuration includes the routing address of the physical server (equivalent to the target server) where the virtual machine to be migrated is located after the migration, and at the same time does not delete the configuration (equivalent to the first routing configuration information) before the migration of the virtual machine in the physical server, that is, during the migration of the virtual machine, two pieces of configuration information of the virtual machine to be migrated, one piece of configuration information before the migration and one piece of configuration information after the migration exist on all virtual switches on the physical server running the virtual machine connected with the management server, and when other virtual machines need to communicate with the virtual machine to be migrated, the virtual switch on the physical server sends messages to the physical server before and after the migration at the same time, and then sends the messages to the virtual machine to be migrated, and deleting the configuration information before the migration of the virtual machine to be migrated in the physical server until the migration of the virtual machine to be migrated is finished. In some embodiments, the virtual machine performs packet forwarding (corresponding to the above-mentioned data accessing the virtual machine to be migrated) through two layers (corresponding to the link layer) and three layers (corresponding to the network layer) on the distributed virtual switch.
Based on the network routing method for the virtual machine provided in this embodiment, the following introduces the data flow direction of the virtual machine to be migrated in the migration process for three situations, namely, a physical server before migration, a target server after migration, and other physical servers of other virtual machines accessing the virtual machine to be migrated, so as to prove that the network routing method for the virtual machine to be migrated can ensure the network continuity in the virtual machine migration process:
for convenience of description and drawing, the virtual machine D to be migrated is represented by "virtual machine D (b)" before migration; the physical server where the virtual machine D to be migrated is located before migration is represented by a physical server B; after the virtual machine D to be migrated is migrated, the virtual machine D (A) is used for representing; the physical server where the virtual machine D to be migrated is located after migration, namely the target server, is represented by a physical server A; a third virtual machine which maintains connectivity with the virtual machine to be migrated, namely the virtual machine which communicates with the virtual machine to be migrated is represented by a "virtual machine C"; the physical server where the virtual machine C is located is represented by a physical server C.
When the virtual machine C is located on the physical server B, as shown in fig. 4, the data flow in the non-migration state sends a packet to the virtual switch on the physical server B for the virtual machine C, and the virtual switch on the physical server B directly forwards the packet to the virtual machine d (B); in the process of migrating the virtual machine D to be migrated, a dotted line with an arrow in fig. 4 indicates a flow direction of a data stream, the virtual switch on the physical server B copies the packet into two parts, one part is directly forwarded to the virtual machine D (B), the other part is forwarded to the virtual switch on the physical server a, and the virtual switch on the physical server a forwards the packet to the virtual machine D (a); after the migration is finished, the management server sends a deletion command to delete the configuration of the virtual machine D (B) in the virtual switch on the physical server B, so that the virtual switch only needs to directly forward the message of the virtual machine C to the virtual switch on the physical server A when forwarding the message of the virtual machine C; therefore, whenever the migration program sets the virtual machine D (a) to an active state (which is equivalent to starting the virtual machine to be migrated in the target server), the virtual machine D to be migrated can receive all messages, so that no packet loss phenomenon is caused in the migration process, and the network continuity is ensured.
When the virtual machine C is located on the physical server a, as shown in fig. 5, the data flow in the non-migration state is that the virtual machine C sends a packet to the virtual switch on the physical server a, and the virtual switch on the physical server a directly forwards the packet to the virtual switch on the physical server B; in the migration process of the virtual machine D to be migrated, a dotted line with an arrow in fig. 5 indicates a flow direction of a data stream, the virtual switch on the physical server a copies the packet into two parts, one part is directly forwarded to the virtual machine D (a), the other part is forwarded to the virtual switch on the physical server B, and the virtual switch on the physical server B forwards the packet to the virtual machine D (B); after the migration of the virtual machine D is finished, the management server sends a deleting command to delete the configuration of the virtual machine D (B) in the virtual switch on the physical server B, and at the moment, the virtual switch only needs to directly forward the message of the virtual machine C to the virtual machine D (A) when forwarding the message of the virtual machine C; therefore, whenever the migration program sets the virtual machine D (a) to be in an active state, all messages can be received for the virtual machine D to be migrated, thereby ensuring no packet loss phenomenon in the migration process and ensuring network continuity.
When the virtual machine C is located on the physical switch C, as shown in fig. 6, the data flow in the non-migration state is that the virtual machine C sends a message to the virtual switch on the physical server C, and the virtual switch on the physical server C directly forwards the message to the virtual machine d (b); in the migration process of the virtual machine D to be migrated, a dotted line with an arrow in fig. 6 indicates a flow direction of a data stream, the virtual switch on the physical server C copies the packet into two parts, one part is forwarded to the virtual switch on the physical server B, the virtual switch on the physical server B is forwarded to the virtual machine D (B), the other part is forwarded to the virtual switch on the physical server a, and the virtual switch on the physical server a is forwarded to the virtual machine D (a); after the migration of the virtual machine D is finished, the management server sends a deletion command to delete the configuration of the virtual machine D (B) in the virtual switch on the physical server B, so that the virtual switch only needs to directly forward the message of the virtual machine C to the virtual switch on the physical server A when forwarding the message of the virtual machine C; therefore, whenever the migration program sets the virtual machine D (a) to be in an active state, all messages can be received for the virtual machine D to be migrated, thereby ensuring no packet loss phenomenon in the migration process and ensuring network continuity.
According to the network routing method of the virtual machine, if the management server receives the migration instruction of the virtual machine to be migrated, the target server of the virtual machine to be migrated is obtained; further inquiring the routing address of the target server, generating a second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently operates according to the first path address and the second path address; and if the instruction of completing the migration of the virtual machine to be migrated is received, deleting the first path address of the virtual machine to be migrated in the physical server. According to the method, in the migration process of the target server, the first path address and the second path address of the virtual machine to be migrated are stored in the physical server, so that the continuity of a migration network in the migration process of the virtual machine is ensured, meanwhile, no packet loss can be ensured, the migration process of the virtual machine is insensitive to users, and the method is favorable for scheduling of resources in public clouds.
Corresponding to the above method embodiment, the embodiment of the present invention provides another network routing method for a virtual machine, where the method is applied to a physical server; the physical server runs at least one virtual machine, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; as shown in fig. 7, the method includes the steps of:
step S702, receiving a second path address of the virtual machine to be migrated, which is provided by the management server. Wherein the second path address is provided by the management server by: if a migration instruction of the virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein, the target server is: and migrating the virtual machine to be migrated from the currently running physical server to the running physical server.
Step S704, if data for accessing the virtual machine to be migrated is received, the data is routed to the physical server and the target server where the virtual machine to be migrated currently operates according to the first path address and the second path address.
In specific implementation, after the physical server receives the second path address of the virtual machine to be migrated, which is provided by the management server, if the virtual machine migration is finished, the management server sends an instruction for deleting the first path address of the virtual machine to be migrated to the physical server, and when the physical server receives the instruction for deleting the first path address of the virtual machine to be migrated, which is sent by the management server, the physical server deletes the first path address of the virtual machine to be migrated.
In the migration process of the virtual machine to be migrated, when other virtual machines except the virtual machine to be migrated need to communicate with the virtual machine to be migrated, the other virtual machines can route data accessing the virtual machine to be migrated to a physical server where the virtual machine to be migrated is located before migration and a target server where the virtual machine to be migrated is located after migration according to a first path address and a second path address stored in a physical server where the other virtual machines operate, so that the virtual machine to be migrated can receive access data forwarded by the physical server where the virtual machine to be migrated is located before migration or the target server in the migration process of the virtual machine to be migrated to ensure network connectivity of the virtual machine to be migrated in the migration process, that is, a network in the migration process of the virtual machine is completely lossless, therefore, normal operation of the virtual machine in the migration process is guaranteed, and various faults of the physical server can be avoided through virtual machine migration. For a large private cloud or a public cloud, live migration of a virtual machine will not be aware of a client at all, which is also beneficial to resource scheduling of the large private cloud or the public cloud.
The fault avoidance of the physical server is realized by the hot migration of the virtual machine; the method for avoiding the physical server fault by the hot migration is to prevent the virtual machine from being affected by the fault (or the hidden fault) of the physical server by hot migrating the virtual machine to another normal physical server when the physical server fails or is likely to fail (the hidden fault exists).
The network routing method of the virtual machine comprises the steps of firstly receiving a second path address of the virtual machine to be migrated, which is provided by a management server; and the second path address is used for acquiring a target server of the virtual machine to be migrated by the management server according to the received migration instruction of the virtual machine to be migrated. And if the data for accessing the virtual machine to be migrated is received, routing the data to a physical server and a target server which are operated by the virtual machine to be migrated at present according to the first path address and the second path address. According to the method, in the migration process of the virtual machine to be migrated, the first path address and the second path address of the virtual machine to be migrated are stored in the physical server connected with the management server, so that no matter whether the virtual machine to be migrated is in the current running physical server or the current running target server in the migration process, access data can be received, the network continuity in the migration process of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
Corresponding to the method embodiments shown in fig. 2 to fig. 3, an embodiment of the present invention provides a network routing apparatus for virtual machines, where the apparatus is disposed in a management server, and the management server is connected to a plurality of physical servers running virtual machines; storing a first path address of a virtual machine in the physical server; as shown in fig. 8, the apparatus includes:
a target server obtaining module 80, configured to obtain a target server of the virtual machine to be migrated if a migration instruction of the virtual machine to be migrated is received; wherein, the target server is: and migrating the virtual machine to be migrated from the currently running physical server to the running physical server.
And the path address providing module 81 is configured to provide the second path addresses of the virtual machines to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machines to be migrated to the physical server and the target server where the virtual machines to be migrated currently run according to the first path address and the second path address.
The network routing device of the virtual machine, provided by the embodiment of the invention, is a network routing method of a virtual machine, wherein if a management server receives a migration instruction of a virtual machine to be migrated, a target server of the virtual machine to be migrated is obtained, and the target server is a physical server which is operated after the virtual machine to be migrated is migrated from a currently operated physical server; and then providing the second path address of the virtual machine to be migrated to the physical server according to the target server, so that the physical server routes the data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the second path address and the first path address stored in the physical server. According to the method, before the virtual machine to be migrated is migrated, the management server provides the second path address of the virtual machine to be migrated in the target server after the virtual machine to be migrated is migrated to the connected physical server, and in the migration process of the virtual machine to be migrated, because the first path address and the second path address of the virtual machine to be migrated in the current server are stored in the physical server, data accessing the virtual machine to be migrated are routed to the physical server and the target server where the virtual machine to be migrated currently runs in the migration process of the virtual machine to be migrated, the physical server and the target server which are currently running can receive the access data, the continuity of network data in the migration process of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
Specifically, the management server stores routing addresses of a plurality of physical servers; the path address providing module 81 includes: the query unit is used for querying the routing address of the target server from the routing addresses of the plurality of physical servers; and the path generating unit is used for generating a second path address of the virtual machine to be migrated based on the routing address of the target server and providing the second path address of the virtual machine to be migrated to the plurality of physical servers.
Furthermore, each physical server stores first routing configuration information; the first routing configuration information comprises first path addresses of a plurality of virtual machines in a preset network range; the path generating unit is configured to: generating second routing configuration information based on the routing address of the target server; the second routing configuration information comprises a second path address of the virtual machine to be migrated; and sending the second routing configuration information to the plurality of physical servers.
In a specific implementation, the apparatus further includes a path address deleting module, configured to: and if the instruction of completing the migration of the virtual machine to be migrated is received, deleting the first path address of the virtual machine to be migrated in the physical server.
The network routing device of the virtual machine provided by the embodiment of the invention has the same implementation principle and the same technical effect as the method embodiment, and for the sake of brief description, the corresponding content in the method embodiment can be referred to where the device embodiment is not mentioned.
Corresponding to the method embodiment shown in fig. 7, the embodiment of the present invention further provides another network routing apparatus for a virtual machine, where the apparatus is disposed in a physical server; the method comprises the following steps that at least one virtual machine runs in a physical server, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; as shown in fig. 9, the apparatus includes:
a path address receiving module 90, configured to receive a second path address of the virtual machine to be migrated, where the second path address is provided by the management server; wherein the second path address is provided by the management server by: if a migration instruction of the virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein, the target server is: and migrating the virtual machine to be migrated from the currently running physical server to the running physical server.
And the data routing module 91 is configured to route the data to the physical server and the target server, where the virtual machine to be migrated currently runs, according to the first path address and the second path address if the data for accessing the virtual machine to be migrated is received.
The apparatus further comprises an address deletion module configured to: and if an instruction for deleting the first path address of the virtual machine to be migrated, which is sent by the management server, is received, deleting the first path address of the virtual machine to be migrated.
The network routing device of the virtual machine firstly receives a second path address of the virtual machine to be migrated, which is provided by a management server; and the second path address is used for acquiring a target server of the virtual machine to be migrated by the management server according to the received migration instruction of the virtual machine to be migrated. And if the data for accessing the virtual machine to be migrated is received, routing the data to a physical server and a target server which are operated by the virtual machine to be migrated at present according to the first path address and the second path address. According to the method, in the migration process of the virtual machine to be migrated, the first path address and the second path address of the virtual machine to be migrated are stored in the physical server connected with the management server, so that no matter whether the virtual machine to be migrated is in the current running physical server or the current running target server in the migration process, access data can be received, the network continuity in the migration process of the virtual machine is ensured, and the phenomenon of packet loss is avoided.
An embodiment of the present invention further provides a management server, where the management server includes a processor 101 and a memory 100, where the memory 100 stores machine executable instructions capable of being executed by the processor, and the processor 101 executes the machine executable instructions to implement the network routing method for the virtual machine shown in fig. 2 to 3.
Further, the management server shown in fig. 10 further includes a bus 102 and a communication interface 103, and the processor 101, the communication interface 103, and the memory 100 are connected through the bus 102.
The memory 100 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 103 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used. The bus 102 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 10, but this does not indicate only one bus or one type of bus.
The processor 101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 101. The processor 101 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 100, and the processor 101 reads the information in the memory 100, and completes the steps of the method of the foregoing embodiment in combination with the hardware thereof.
An embodiment of the present invention further provides a physical server, where the physical server includes a processor and a memory, where the memory stores machine executable instructions that can be executed by the processor, and the processor executes the machine executable instructions to implement the network routing apparatus of the virtual machine shown in fig. 8. The specific structure of the physical server can be referred to the structure shown in fig. 10, and is not described herein again.
The embodiment of the present invention further provides a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions, and when the machine-executable instructions are called and executed by a processor, the machine-executable instructions cause the processor to implement the network routing method for the virtual machine, and specific implementation may refer to method embodiments, and is not described herein again.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the apparatus and/or the server described above may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The network routing method of the virtual machine is characterized in that the method is applied to a management server which is connected with a plurality of physical servers running with the virtual machine; storing a first path address of the virtual machine in the physical server; the method comprises the following steps:
if a migration instruction of a virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein the target server is: the virtual machine to be migrated is migrated from the currently running physical server to the running physical server;
and providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server in which the virtual machine to be migrated currently runs according to the first path address and the second path address.
2. The method of claim 1, wherein the management server maintains routing addresses for a plurality of the physical servers;
the step of providing the second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server includes:
inquiring the routing address of the target server from the routing addresses of a plurality of physical servers;
and generating a second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers.
3. The method of claim 2, wherein each of the physical servers has first routing configuration information stored therein; the first routing configuration information comprises first path addresses of a plurality of virtual machines in a preset network range;
the step of generating the second path address of the virtual machine to be migrated based on the routing address of the target server, and providing the second path address of the virtual machine to be migrated to the plurality of physical servers includes:
generating second routing configuration information based on the routing address of the target server; wherein the second routing configuration information comprises a second path address of the virtual machine to be migrated;
and sending the second routing configuration information to a plurality of physical servers.
4. The method of claim 1, wherein after the step of providing, according to the target server, the second path address of the virtual machine to be migrated to the plurality of physical servers, the method further comprises:
and if the instruction of completing the migration of the virtual machine to be migrated is received, deleting the first path address of the virtual machine to be migrated in the physical server.
5. The network routing method of the virtual machine is characterized in that the method is applied to a physical server; at least one virtual machine runs in the physical server, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; the method comprises the following steps:
receiving a second path address of the virtual machine to be migrated, which is provided by the management server; wherein the second path address is provided by the management server by: if a migration instruction of a virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein the target server is: the virtual machine to be migrated is migrated from the currently running physical server to the running physical server;
and if data for accessing the virtual machine to be migrated is received, routing the data to a physical server and the target server which are operated by the virtual machine to be migrated at present according to the first path address and the second path address.
6. The method of claim 5, wherein after the step of receiving the second path address of the virtual machine to be migrated provided by the management server, the method further comprises:
and if an instruction for deleting the first path address of the virtual machine to be migrated, which is sent by the management server, is received, deleting the first path address of the virtual machine to be migrated.
7. The network routing device of the virtual machine is characterized in that the device is arranged on a management server, and the management server is connected with a plurality of physical servers running with the virtual machine; storing a first path address of the virtual machine in the physical server; the device comprises:
the target server acquisition module is used for acquiring a target server of the virtual machine to be migrated if a migration instruction of the virtual machine to be migrated is received; wherein the target server is: the virtual machine to be migrated is migrated from the currently running physical server to the running physical server;
and the path address providing module is used for providing a second path address of the virtual machine to be migrated to the plurality of physical servers according to the target server, so that the physical servers route data accessing the virtual machine to be migrated to the physical server and the target server, where the virtual machine to be migrated currently runs, according to the first path address and the second path address.
8. The network routing device of the virtual machine is characterized in that the device is arranged on a physical server; at least one virtual machine runs in the physical server, and a first path address of each virtual machine is stored in the physical server; the physical server is connected with the management server; the device comprises:
the path address receiving module is used for receiving a second path address of the virtual machine to be migrated, which is provided by the management server; wherein the second path address is provided by the management server by: if a migration instruction of a virtual machine to be migrated is received, acquiring a target server of the virtual machine to be migrated; wherein the target server is: the virtual machine to be migrated is migrated from the currently running physical server to the running physical server;
and the data routing module is used for routing the data to a physical server and the target server which are operated by the virtual machine to be migrated currently according to the first path address and the second path address if the data for accessing the virtual machine to be migrated is received.
9. A management server comprising a processor and a memory, the memory storing machine executable instructions executable by the processor, the processor executing the machine executable instructions to implement the network routing method for a virtual machine of any of claims 1-4.
10. A physical server comprising a processor and a memory, the memory storing machine executable instructions executable by the processor, the processor executing the machine executable instructions to implement the network routing method for a virtual machine of any of claims 5-6.
11. A machine-readable storage medium having stored thereon machine-executable instructions which, when invoked and executed by a processor, cause the processor to implement the network routing method of a virtual machine of any of claims 1-6.
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| CN115065630B (en) * | 2022-05-10 | 2024-04-09 | 深信服科技股份有限公司 | Migration method and device of virtual router, electronic equipment and storage medium |
| CN115473766B (en) * | 2022-08-22 | 2024-01-26 | 苏州思萃工业互联网技术研究所有限公司 | Vip implementation method and system based on distributed gateway |
| CN116599892B (en) * | 2023-07-17 | 2023-10-03 | 浪潮电子信息产业股份有限公司 | Server system, routing method, routing device, electronic equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743792A (en) * | 2014-12-12 | 2016-07-06 | 中兴通讯股份有限公司 | Flow table updating method and apparatus |
| CN107547400A (en) * | 2017-06-21 | 2018-01-05 | 新华三技术有限公司 | A kind of virtual machine migration method and device |
| CN108768895A (en) * | 2018-05-18 | 2018-11-06 | 华为技术有限公司 | A kind of method of virtual machine (vm) migration and data center |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201721B (en) * | 2012-08-29 | 2016-05-25 | 华为技术有限公司 | The system and method for live migration of virtual machine |
| CN103812823B (en) * | 2012-11-07 | 2017-10-10 | 华为技术有限公司 | Configuration information is migrated during live migration of virtual machine method, equipment and system |
-
2020
- 2020-06-11 CN CN202010533235.2A patent/CN111698164B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743792A (en) * | 2014-12-12 | 2016-07-06 | 中兴通讯股份有限公司 | Flow table updating method and apparatus |
| CN107547400A (en) * | 2017-06-21 | 2018-01-05 | 新华三技术有限公司 | A kind of virtual machine migration method and device |
| CN108768895A (en) * | 2018-05-18 | 2018-11-06 | 华为技术有限公司 | A kind of method of virtual machine (vm) migration and data center |
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