CN111565207B - Content distribution network control method, device and computer-readable storage medium - Google Patents

Abstract

The invention discloses a control method and device of a content delivery network and a computer readable storage medium, relating to the technical field of communication and aiming at solving the problem of complex centralized management and control of a CDN (content delivery network). The method comprises the following steps: acquiring master-slave node information sent by a CDN coordinator; receiving a content access request; determining a second edge node according to the content access request and the master-slave node information; and controlling the second edge node to provide access content according to the content access request. The embodiment of the invention can reduce the complexity of the centralized management control of the CDN network.

Description

Content distribution network control method, device and computer-readable storage medium

technical field

The present invention relates to the field of communication technology, in particular to a control method, device and computer-readable storage medium for a content distribution network.

Background technique

CDN (Content Delivery Network, Content Distribution Network) is a content distribution network built on top of the network, relying on the edge servers deployed in various places, through the load balancing, content distribution, control and other functional modules of the central platform, so that users can get what they need nearby content, reduce network congestion, and improve user access response speed and hit rate. The key technology of CDN mainly includes content storage and distribution technology.

After the existing CDN network sinks, there are many nodes, which leads to complicated centralized management and control.

Contents of the invention

Embodiments of the present invention provide a content distribution network control method, device, and computer-readable storage medium to solve the problem of complex centralized management and control of a CDN network.

In a first aspect, an embodiment of the present invention provides a method for controlling a content distribution network, which is applied to a first edge node, including:

Obtain the master-slave node information sent by the CDN coordinator;

receive content access requests;

determining a second edge node according to the content access request and the master-slave node information;

controlling the second edge node to provide access content according to the content access request.

Wherein, said determining the second edge node includes:

Determine the slave edge node according to the master-slave node information;

Obtain the content list sent by the slave edge node, and determine the second edge node from the slave edge nodes according to the content list.

Wherein, before receiving the content access request, the method further includes:

sending registration information to the CDN coordinator;

Receive registration information sent by the second edge node.

Wherein, when the first edge node fails, the method further includes:

Send registration information to the primary edge node re-determined by the CDN coordinator.

In a second aspect, an embodiment of the present invention provides a method for controlling a content distribution network, which is applied to a second edge node, including:

According to the control of the first edge node, access content is provided.

Wherein, the method also includes:

Sending a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list.

Wherein, the method also includes:

Send registration information to the CDN coordinator;

Send registration information to the first edge node.

Wherein, when the first edge node fails, if the second edge node is the master edge node, the method further includes:

Receive registration information sent by the first edge node.

In a third aspect, an embodiment of the present invention provides a method for controlling a content distribution network, which is applied to a CDN coordinator, including:

receiving registration information sent by at least two edge nodes;

Determine master-slave node information according to the registration information;

Send the master-slave node information to the at least two edge nodes, and instruct the slave edge node to send registration information to the master edge node.

Wherein, when the main edge node fails, the method further includes:

Re-determine the master edge node and slave edge node;

Instructing the re-determined slave edge node to send registration information to the re-confirmed master edge node.

In a fourth aspect, an embodiment of the present invention provides a control device for a content distribution network, which is applied to a first edge node, and includes: a processor and a transceiver;

The transceiver is used to obtain the master-slave node information sent by the CDN coordinator; receive a content access request;

The processor is configured to determine a second edge node according to the content access request and the master-slave node information; and control the second edge node to provide access content according to the content access request.

Wherein, the processor is further configured to, according to the master-slave node information, determine the slave edge node; obtain the content list sent by the slave edge node, and determine the second edge node from the slave edge node according to the content list Two edge nodes.

Wherein, the transceiver is further configured to send registration information to the CDN coordinator; and receive registration information sent by the second edge node.

Wherein, the transceiver is further configured to send registration information to the master edge node re-determined by the CDN coordinator.

In a fifth aspect, an embodiment of the present invention provides a control device for a content distribution network, which is applied to a second edge node, and includes: a processor and a transceiver;

The processor is configured to provide access to content according to the control of the first edge node.

Wherein, the transceiver is further configured to send a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list.

Wherein, the transceiver is further configured to send the registration information to the CDN coordinator; and send the registration information to the first edge node.

Wherein, the transceiver is further configured to receive registration information sent by the first edge node.

In a sixth aspect, an embodiment of the present invention provides a control device for a content distribution network, which is applied to a CDN coordinator, and includes: a processor and a transceiver;

The transceiver is configured to receive registration information sent by at least two edge nodes;

The processor is configured to determine master-slave node information according to the registration information;

The transceiver is further configured to send the master-slave node information to the at least two edge nodes;

The processor is further configured to instruct the slave edge node to send registration information to the master edge node.

Wherein, the processor is further configured to re-determine the master edge node and the slave edge node when the master edge node fails, and instruct the re-determined slave edge node to send registration information to the reconfirmed master edge node.

In a seventh aspect, an embodiment of the present invention provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored in the memory and operable on the processor; the processor is used to Reading the program in the memory implements the steps in the method as described in the first aspect; or implements the steps in the method as described in the second aspect; or implements the steps in the method as described in the third aspect.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program, and when the computer program is executed by a processor, the steps in the method described in the first aspect are realized; or the steps in the method described in the second aspect are realized; Steps in the method described in the third aspect; or implement the steps in the method described in the third aspect.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is one of the flowcharts of the control method of the content distribution network provided by the embodiment of the present invention;

Fig. 2 is the second flow chart of the control method of the content distribution network provided by the embodiment of the present invention;

Fig. 3 is the third flowchart of the control method of the content distribution network provided by the embodiment of the present invention;

Fig. 4 is the schematic diagram of the CDN scheduling system of the embodiment of the present invention;

5 is a schematic diagram of a CDN node affiliation registration process according to an embodiment of the present invention;

FIG. 6 is a schematic flow diagram of a user accessing a CDN slave edge node according to an embodiment of the present invention;

7 is a schematic diagram of an arbitrary node flexible ad hoc affiliation group according to an embodiment of the present invention;

FIG. 8 is one of the structural diagrams of a control device for a content distribution network provided by an embodiment of the present invention;

FIG. 9 is the second structural diagram of a control device for a content distribution network provided by an embodiment of the present invention;

FIG. 10 is the third structural diagram of a control device for a content distribution network provided by an embodiment of the present invention;

FIG. 11 is one of the structural diagrams of a communication device provided by an embodiment of the present invention;

Fig. 12 is the second structural diagram of the communication device provided by the embodiment of the present invention;

FIG. 13 is a third structural diagram of a communication device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to FIG. 1 , FIG. 1 is a flow chart of a method for controlling a content distribution network provided by an embodiment of the present invention, which is applied to a first edge node. As shown in Figure 1, the following steps are included:

Step 101, acquire the master-slave node information sent by the CDN coordinator.

Wherein, the information of the master node and the information of the slave node can be recorded in the master-slave node information, such as IP (Internet Protocol, Internet Protocol) address and the like.

Step 102, receiving a content access request.

When there is a content access request, the first edge node may receive the user's content access request. The first edge node serves here as the main edge node.

Step 103: Determine a second edge node according to the content access request and the master-slave node information.

Specifically, in this step, the slave edge node may be determined according to the master-slave node information, and then the content list sent by the slave edge node may be obtained, and the second edge node may be determined from the slave edge node according to the content list. Two edge nodes. The second edge node serves here as a slave edge node.

Step 104: Control the second edge node to provide access content according to the content access request.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

On the basis of the foregoing embodiments, in order to further improve management efficiency, before step 101, the method may further include: sending registration information to the CDN coordinator, and receiving registration information sent by the second edge node.

When the first edge node fails, the method further includes: sending registration information to the primary edge node re-determined by the CDN coordinator.

Referring to FIG. 2 , FIG. 2 is a flow chart of a method for controlling a content distribution network provided by an embodiment of the present invention, which is applied to a second edge node. As shown in Figure 2, it includes the following steps:

Step 201. Provide access content according to the control of the first edge node.

For example, when the first edge node determines that the second edge node can provide the access content, it will control the second edge node to provide the access content.

To improve control efficiency, the second edge node may also send a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list.

In addition, for the convenience of the CDN coordinator to control, the second edge node may also send registration information to the CDN coordinator, and send registration information to the first edge node.

When the first edge node fails, if the second edge node is the master edge node, it can also receive the registration information sent by the first edge node.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

Referring to FIG. 3 , FIG. 3 is a flowchart of a method for controlling a content distribution network provided by an embodiment of the present invention, which is applied to a CDN coordinator. As shown in Figure 3, the following steps are included:

Step 301. Receive registration information sent by at least two edge nodes.

Step 302. Determine master-slave node information according to the registration information.

Step 303: Send the master-slave node information to the at least two edge nodes, and instruct the slave edge node to send registration information to the master edge node.

When the initially determined master edge node fails, the method further includes: re-determining the master edge node and the slave edge node, and instructing the re-determined slave edge node to send registration information to the reconfirmed master edge node.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

As shown in FIG. 4 , the CDN scheduling system of the embodiment of the present invention may include: CDN edge nodes (the illustration includes edge node A, edge node 1, and edge node 2), a CDN global scheduling system, a CDN coordinator, and the like. Wherein, in this system, the negotiation information includes node registration information, node affiliation, and the like. The negotiation process is controlled by the CDN global scheduling system, and the registration information table is generated by the CDN coordinator. The CDN scheduling process mainly includes:

Step 401, edge node A, edge node 1, and edge node 2 respectively send relevant registration information to the CDN coordinator.

Step 402, the CDN coordinator judges the master-slave relationship according to the policy, and sends node master-slave relationship information to edge node A, edge node 1, and edge node 2.

Step 403 , if it is determined that edge node 1 is subordinate to edge node A and edge node 2 is subordinate to edge node A, edge nodes 1 and 2 register with edge node A. Edge node A, as the master edge node, schedules and manages slave edge nodes 1 and 2.

At the same time, edge nodes 1 and 2 report their content list and load status to edge node A in real time, and accept the scheduling management information of edge node A.

Step 404, the CDN global scheduling system receives the content access request from user 1. Then, the CDN returns the IP address of edge node A to user 1 according to the request. Afterwards, edge node A determines that edge node 1 is a secondary edge node that can provide access content according to the obtained information, then returns the IP address of edge node 1 to user 1, and controls edge node 1 to provide access content to user 1.

When edge node A fails, the CDN coordinator can promote edge node 1 or edge node 2 to be the master edge node according to the policy.

Among them, the registration information is shown in Table 1:

Table 1

attribute definition Registration Information Form Description Node_ID Node ID, globally unique Node_IP Node IP position Master-slave information, master or slave content list Table of contents, including urls and hotspot thresholds node load Real-time load information of the node itself location Region label, which is convenient for the coordinator to judge

Among them, the node master-slave relationship information is shown in Table 2:

Table 2

attribute definition Master-slave information table description location Region label, which is convenient for the coordinator to judge Master Master node IP Slave Slave IP1, Slave IP2, Slave IP3... Master_status master node status Slave_status slave node status Location_nearby Adjacent area

As shown in FIG. 5 , it is a CDN node affiliation registration process. Edge nodes register with the CDN coordinator and send registration information. According to the policy, the CDN coordinator sends the master-slave information of the node to each edge node, and sends an instruction to the slave edge node instructing it to register with the master edge node, and maintains the master-slave node relationship. When the master edge node fails, the CDN coordinator selects a slave edge node to become the master edge node according to the policy, and sends other slave edge nodes to instruct other slave edge nodes to register with the re-determined master edge node and maintain the master-slave relationship .

A CDN node coordinating module can be set in the edge node, which is used for negotiating node registration information, node master-slave information, and the like. The edge node registers with the CDN coordinator to obtain the master-slave information issued by the CDN coordinator. If an edge node is the master edge node, it receives the registration information of other slave edge nodes, and schedules and manages the slave edge nodes. If it is a slave edge node, it will register with the master edge node according to the master-slave information and accept management scheduling.

As shown in Figure 6, it is the flow of users accessing CDN slave edge nodes. When user 1 has an access request, the CDN global scheduling system returns the IP address of edge node 1 according to the content of the request. As the master edge node, edge node 1 receives the user's access request, and dispatches it to the corresponding slave edge node according to the status of the managed slave edge node, which is assumed to be slave edge node 2 here. As a slave edge node, edge node 2 reports its content list, load status, etc. to edge node 1 in real time, and accepts the scheduling management information of edge node 1. After that, access content is provided to the user from the edge node 2 .

FIG. 7 is a schematic diagram of a flexible ad hoc affiliation group for any node. Under the control of the network-wide coordinator and scheduling system, any number of edge nodes in the network can flexibly form a large node according to the strategy. If the scheduling cost of edge nodes 1, 6, and 7 is low, the scheduling cost information can be reported to the CDN coordinator, and the CDN coordinator forms a low-cost affiliation relationship according to the set scheduling cost strategy, and sends the corresponding edge nodes. Other strategies such as location, load, delay, etc. can be used to form a large node in this way, and can realize the elasticity of resources in the large node.

It can be seen from the above that the embodiment of the present invention provides an end-to-end implementable solution, which can realize the automatic integration of edge nodes into the CDN network, the automatic formation of multiple edge nodes into a regional node, and the expansion, shrinkage and adjacent Flexible deployment of node affiliation between regions.

As shown in FIG. 8, the control device of the content distribution network according to the embodiment of the present invention is applied to the first edge node, and includes: a processor 801 and a transceiver 802;

The transceiver 802 is configured to obtain the master-slave node information sent by the CDN coordinator; receive a content access request;

The processor 801 is configured to determine a second edge node according to the content access request and the master-slave node information; and control the second edge node to provide access content according to the content access request.

Optionally, the processor 801 is further configured to determine a slave edge node according to the master-slave node information; obtain a content list sent by the slave edge node, and determine from the slave edge node according to the content list The second edge node.

Optionally, the transceiver 802 is further configured to send registration information to the CDN coordinator; and receive registration information sent by the second edge node.

Optionally, the transceiver 802 is further configured to send registration information to the primary edge node re-determined by the CDN coordinator.

For the working principle described in the device of the embodiment of the present invention, reference may be made to the description of the foregoing method embodiment.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

As shown in FIG. 9 , the control device of the content distribution network according to the embodiment of the present invention is applied to the second edge node, and includes: a processor 901 and a transceiver 902; the processor 901 is used to, according to the control of the first edge node , providing access to the content.

Optionally, the transceiver 902 is further configured to send a content list to the first edge node, where the first edge node selects the second edge node for control according to the content list.

Optionally, the transceiver 902 is further configured to send the registration information to the CDN coordinator; and send the registration information to the first edge node.

Optionally, the transceiver 902 is further configured to receive registration information sent by the first edge node.

For the working principle described in the device of the embodiment of the present invention, reference may be made to the description of the foregoing method embodiment.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

As shown in FIG. 10, the control device of the content distribution network according to the embodiment of the present invention is applied to a CDN coordinator, and includes: a processor 1001 and a transceiver 1002;

The transceiver 1002 is configured to receive registration information sent by at least two edge nodes;

The processor 1001 is configured to determine master-slave node information according to the registration information;

The transceiver 1002 is further configured to send the master-slave node information to the at least two edge nodes;

The processor 1001 is further configured to instruct the slave edge node to send registration information to the master edge node.

Optionally, the processor 1001 is further configured to re-determine the master edge node and the slave edge node when the master edge node fails, and instruct the re-determined slave edge node to send registration information to the re-confirmed master edge node.

For the working principle described in the device of the embodiment of the present invention, reference may be made to the description of the foregoing method embodiment.

In the embodiment of the present invention, any CDN node can form an affiliation group, which is used for CDN nodes to self-organize into corresponding affiliation group nodes according to scene requirements, so that the embodiment of the present invention can reduce the complexity of centralized management and control of the CDN network.

As shown in FIG. 11 , the communication device in the embodiment of the present invention includes: a processor 1100, configured to read the program in the memory 1120, and execute the following process:

Obtain the master-slave node information sent by the CDN coordinator; receive a content access request; determine a second edge node according to the content access request and the master-slave node information; control the second edge node to provide access content.

The transceiver 1110 is used for receiving and sending data under the control of the processor 1100 .

Wherein, in FIG. 11 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1100 and various circuits of the memory represented by the memory 1120 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1110 may be a plurality of elements, ie, including a transmitter and a transceiver, providing a means for communicating with various other devices over a transmission medium. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when performing operations.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 when performing operations.

The processor 1100 is also used to read the computer program, and perform the following steps:

Determine the slave edge node according to the master-slave node information;

Obtain the content list sent by the slave edge node, and determine the second edge node from the slave edge nodes according to the content list.

The processor 1100 is also used to read the computer program, and perform the following steps:

sending registration information to the CDN coordinator;

Receive registration information sent by the second edge node.

The processor 1100 is also used to read the computer program, and perform the following steps:

Send registration information to the primary edge node re-determined by the CDN coordinator.

As shown in FIG. 12, the communication device in this embodiment of the present invention includes: a processor 1200, configured to read a program in a memory 1220, and execute the following process: provide access content according to the control of the first edge node.

The transceiver 1210 is used for receiving and sending data under the control of the processor 1200 .

Wherein, in FIG. 12 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1200 and various circuits of the memory represented by the memory 1220 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1210 may be a plurality of elements, including a transmitter and a transceiver, providing a means for communicating with various other devices over a transmission medium. The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1200 when performing operations.

The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1200 when performing operations.

The processor 1200 is also configured to read the computer program, and perform the following steps:

Sending a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list.

The processor 1200 is also configured to read the computer program, and perform the following steps:

Send registration information to the CDN coordinator;

Send registration information to the first edge node.

The processor 1200 is also configured to read the computer program, and perform the following steps:

Receive registration information sent by the first edge node.

As shown in FIG. 13, the communication device in the embodiment of the present invention includes: a processor 1300, configured to read the program in the memory 1320, and execute the following process:

receiving registration information sent by at least two edge nodes; determining master-slave node information according to the registration information; sending the master-slave node information to the at least two edge nodes, and instructing the slave edge node to send a registration to the master edge node information.

The transceiver 1310 is used for receiving and sending data under the control of the processor 1300 .

Wherein, in FIG. 13 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1300 and various circuits of the memory represented by the memory 1320 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus interface provides the interface. Transceiver 1310 may be a plurality of elements, including a transmitter and a transceiver, providing a means for communicating with various other devices over a transmission medium. The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1300 when performing operations.

The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1300 when performing operations.

The processor 1300 is also configured to read the computer program, and perform the following steps:

Re-determine the master edge node and slave edge node;

Instructing the re-determined slave edge node to send registration information to the re-confirmed master edge node.

In addition, the computer-readable storage medium in the embodiment of the present invention is used to store a computer program, and the computer program can be executed by a processor to implement the following steps:

Obtain the master-slave node information sent by the CDN coordinator;

receive content access requests;

determining a second edge node according to the content access request and the master-slave node information;

controlling the second edge node to provide access content according to the content access request.

Wherein, said determining the second edge node includes:

Determine the slave edge node according to the master-slave node information;

Obtain the content list sent by the slave edge node, and determine the second edge node from the slave edge nodes according to the content list.

Wherein, before receiving the content access request, the method further includes:

sending registration information to the CDN coordinator;

Receive registration information sent by the second edge node.

Wherein, when the first edge node fails, the method further includes:

Send registration information to the primary edge node re-determined by the CDN coordinator.

In addition, the computer-readable storage medium in the embodiment of the present invention is used to store a computer program, and the computer program can be executed by a processor to implement the following steps:

According to the control of the first edge node, access content is provided.

Wherein, the method also includes:

Sending a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list.

Wherein, the method also includes:

Send registration information to the CDN coordinator;

Send registration information to the first edge node.

Wherein, when the first edge node fails, if the second edge node is the master edge node, the method further includes:

Receive registration information sent by the first edge node.

In addition, the computer-readable storage medium in the embodiment of the present invention is used to store a computer program, and the computer program can be executed by a processor to implement the following steps:

receiving registration information sent by at least two edge nodes;

Determine master-slave node information according to the registration information;

Send the master-slave node information to the at least two edge nodes, and instruct the slave edge node to send registration information to the master edge node.

Wherein, when the main edge node fails, the method further includes:

Re-determine the master edge node and slave edge node;

Instructing the re-determined slave edge node to send registration information to the re-confirmed master edge node.

In the several embodiments provided in this application, it should be understood that the disclosed methods and devices may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units may be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the sending and receiving methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), magnetic disk or optical disc, etc. can store program codes. medium.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (22)

1. A control method for a content distribution network, applied to a first edge node, characterized in that it comprises: Obtain the master-slave node information sent by the content distribution network CDN coordinator; receive content access requests; determining a second edge node according to the content access request and the master-slave node information; controlling the second edge node to provide access content according to the content access request. 2. The method according to claim 1, wherein said determining the second edge node comprises: Determine the slave edge node according to the master-slave node information; Obtain the content list sent by the slave edge node, and determine the second edge node from the slave edge nodes according to the content list. 3. The method according to claim 2, wherein before receiving the content access request, the method further comprises: sending registration information to the CDN coordinator; Receive registration information sent by the second edge node. 4. The method according to claim 1, wherein when the first edge node fails, the method further comprises: Send registration information to the primary edge node re-determined by the CDN coordinator. 5. A control method for a content distribution network, applied to a second edge node, characterized in that it comprises: providing access content according to the control of the first edge node; Wherein, the second edge node is a slave edge node of the first edge node, and the second edge node is determined by the first edge node according to the content access request and the master-slave node information obtained from the CDN coordinator . 6. The method according to claim 5, further comprising: Sending a content list to the first edge node, wherein the first edge node selects the second edge node for control according to the content list. 7. The method according to claim 5, wherein the method further comprises: Send registration information to the CDN coordinator; Send registration information to the first edge node. 8. The method according to claim 5, wherein when the first edge node fails, if the second edge node is the master edge node, the method further comprises: Receive registration information sent by the first edge node. 9. A control method for a content distribution network, applied to a CDN coordinator, comprising: receiving registration information sent by at least two edge nodes; Determine master-slave node information according to the registration information; Send the master-slave node information to the at least two edge nodes, and instruct the slave edge node to send registration information to the master edge node. 10. The method according to claim 9, wherein when the primary edge node fails, the method further comprises: Re-determine the master edge node and slave edge node; Instructing the re-determined slave edge node to send registration information to the re-confirmed master edge node. 11. A control device for a content distribution network, applied to a first edge node, characterized in that it includes: a processor and a transceiver; The transceiver is used to obtain the master-slave node information sent by the CDN coordinator; receive a content access request; The processor is configured to determine a second edge node according to the content access request and the master-slave node information; and control the second edge node to provide access content according to the content access request. 12. The device according to claim 11, wherein the processor is further configured to, according to the master-slave node information, determine a slave edge node; acquire a content list sent by the slave edge node, and according to the The content list determines the second edge node from the secondary edge nodes. 13. The device according to claim 12, wherein the transceiver is further configured to send registration information to the CDN coordinator; and receive registration information sent by the second edge node. 14. The device according to claim 11, wherein the transceiver is further configured to send registration information to the primary edge node re-determined by the CDN coordinator. 15. A control device for a content distribution network, applied to a second edge node, comprising: a processor and a transceiver; The processor is configured to provide access content according to the control of the first edge node; Wherein, the second edge node is a slave edge node of the first edge node, and the second edge node is determined by the first edge node according to the content access request and the master-slave node information obtained from the CDN coordinator . 16. The device according to claim 15, wherein the transceiver is further configured to send a content list to the first edge node, wherein the first edge node selects the The second edge node performs control. 17. The device according to claim 15, wherein the transceiver is further configured to: send registration information to a CDN coordinator; and send registration information to the first edge node. 18. The device according to claim 15, wherein the transceiver is further configured to receive registration information sent by the first edge node. 19. A control device for a content distribution network, applied to a CDN coordinator, comprising: a processor and a transceiver; The transceiver is configured to receive registration information sent by at least two edge nodes; The processor is configured to determine master-slave node information according to the registration information; The transceiver is further configured to send the master-slave node information to the at least two edge nodes; The processor is further configured to instruct the slave edge node to send registration information to the master edge node. 20. The device according to claim 19, wherein the processor is further configured to re-determine the master edge node and the slave edge node when the master edge node fails, indicating that the re-determined slave edge node The primary edge node sends registration information. 21. A communication device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; it is characterized in that, The processor is used to read the program in the memory to realize the steps in the method according to any one of claims 1 to 4; or to realize the steps in the method according to any one of claims 5 to 8 step; or implement the steps in the method as described in any one of claims 9 to 10. 22. A computer-readable storage medium for storing a computer program, characterized in that, when the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 4 are realized; or The steps in the method as described in any one of claims 5 to 8; or implement the steps in the method as described in any one of claims 9 to 10.

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