CN112929319A - Content service method, system, apparatus and computer-readable storage medium - Google Patents
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Abstract
The disclosure provides a content service method, a system, a device and a computer readable storage medium, relating to the technical field of content distribution. The content service method comprises the following steps: a client side sends a DNS scheduling request to global load balancing; the global load balance sends the IP address of the superior service node to the client; the client sends a first media service request to a superior service node by using the IP address of the superior service node; the superior service node authenticates the first media service request and sends an authentication permit and a URL (uniform resource locator) of the edge service node to the client; the client sends a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit; and after the edge service node checks the authentication permit carried by the second media service, the edge service node provides content service for the client. The method and the device can reduce the scheduling management complexity of the content distribution network and improve the operation efficiency of the content distribution network.
Description
Technical Field
The present disclosure relates to the field of content distribution technologies, and in particular, to a content service method, system, device, and computer-readable storage medium.
Background
The enhanced mobile broadband, large-scale machine type communication and ultra-reliable low-delay communication are three typical service scenes of 5G. The enhanced mobile broadband is mainly applied to high-flow mobile broadband such as ultra-high-definition video, virtual reality, augmented reality, high-speed mobile internet access and the like, is the enhancement of 5G to 4G mobile broadband scenes, enables 5G single-user access bandwidth to be similar to that of the existing fixed network access broadband, and enables access rate to be increased by tens of times.
To meet the requirement of the enhanced Mobile broadband application scenario and reduce the bandwidth requirement of the enhanced Mobile broadband application scenario on the 5G bearer network, an MEC (Mobile Edge Computing) platform is generally deployed after the 5G user plane function, and a related application server is deployed on the MEC platform.
Disclosure of Invention
One technical problem solved by the present disclosure is how to improve the operation efficiency of a content distribution network.
According to an aspect of an embodiment of the present disclosure, there is provided a content service method including: a client side sends a DNS scheduling request to global load balancing; the global load balance sends the IP address of the superior service node to the client; the client sends a first media service request to a superior service node by using the IP address of the superior service node; the superior service node authenticates the first media service request and sends an authentication permit and a URL (uniform resource locator) of the edge service node to the client; the client sends a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit; and after the edge service node checks the authentication permit carried by the second media service, the edge service node provides content service for the client.
In some embodiments, the content service method further comprises: the edge service node counts the number of each client side which sends the second media service request to the edge service node; the method comprises the steps that when the number of edge service nodes is smaller than a first threshold value, URLs of superior service nodes are sent to clients; each client sends a third media service request to the superior service node by using the URL of the superior service node; and the upper service node shuts down the edge service node.
In some embodiments, the content service method further comprises: the superior service node determines the access heat of each access content stored in the superior service node; the superior service node generates a virtual machine image containing the first access content under the condition that the access heat of the first access content is greater than a second threshold value, wherein the first access content cannot be rewritten; the superior service node sends a virtual machine resource request to the mobile edge computing MEC platform; the MEC platform generates a new virtual machine to create a new edge service node; and the new edge service node downloads and installs the virtual machine image from the upper service node.
In some embodiments, the virtual machine image further comprises second access content, the second access content having a degree of access heat greater than a second threshold, the second access content not being rewritable.
In some embodiments, the determining, by the superior service node, the access heat of each access content stored by the superior service node includes: the superior service node determines the access heat of each access content stored by the superior service node in each area; the step of generating, by the superior service node, the virtual machine image including the first access content when the access heat of the first access content is greater than the second threshold includes: the superior service node generates a virtual machine image containing the first access content under the condition that the access heat of the first access content in the target area is greater than a second threshold value; the step of sending the virtual machine resource request to the mobile edge computing MEC platform by the superior service node comprises the following steps: the superior service node sends a virtual machine resource request to an MEC platform of a target area; the MEC platform generating a new virtual machine to create a new edge service node includes: the MEC platform of the target area generates a new virtual machine to create a new edge service node for the target area.
According to another aspect of the embodiments of the present disclosure, a content service system is provided, which includes a client, a global load balancing, a superior service node, and an edge service node; wherein the client is configured to: sending a DNS scheduling request to global load balancing; global load balancing is configured to: sending the IP address of the superior service node to the client; the client is further configured to: the method comprises the steps that a first media service request is sent to a superior service node by using an IP address of the superior service node; the upper level service node is configured to: authenticating the first media service request, and sending an authentication permit and a URL (uniform resource locator) of an edge service node to the client; the client is further configured to: sending a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit; the edge service node is configured to: and after the authentication permit carried by the second media service is checked, providing content service for the client.
In some embodiments, the edge service node is further configured to: counting the number of each client to which the second media service request is sent; under the condition that the number is smaller than a first threshold value, sending the URL of the superior service node to each client; the clients include respective clients, and are further configured to: sending a third media service request to the superior service node by using the URL of the superior service node; the upper level service node is further configured to: and shutting down the edge service node.
In some embodiments, the content services system further comprises a mobile edge computing, MEC, platform; the upper level service node is further configured to: determining the access heat of each access content stored in the superior service node; under the condition that the access heat of the first access content is larger than a second threshold value, generating a virtual machine image containing the first access content, wherein the first access content cannot be rewritten; sending a virtual machine resource request to the MEC platform; the MEC platform is configured to: generating a new virtual machine to create a new edge service node; the edge service node comprises a new edge service node configured to download and install the virtual machine image from the superior service node through the new edge service node.
In some embodiments, the virtual machine image further comprises second access content, the second access content having a degree of access heat greater than a second threshold, the second access content not being rewritable.
In some embodiments, the upper level service node is configured to: determining the access heat of each access content stored in the superior service node in each area; under the condition that the access heat of the first access content in the target area is greater than a second threshold value, generating a virtual machine image containing the first access content; the superior service node sends a virtual machine resource request to an MEC platform of a target area; the MEC platform is configured to: and generating a new virtual machine through the MEC platform of the target area to create a new edge service node for the target area.
According to still another aspect of an embodiment of the present disclosure, there is provided a content service apparatus including: a memory; and a processor coupled to the memory, the processor configured to execute the aforementioned content service method based on instructions stored in the memory.
According to still another aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor, implement the aforementioned content service method.
The method and the device can reduce the scheduling management complexity of the content distribution network and improve the operation efficiency of the content distribution network.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows an architectural diagram of a conventional MEC-based CDN.
Fig. 2 shows an architectural diagram of the MEC-based CDN of the present disclosure.
Fig. 3 illustrates a flow diagram of a content service method of some embodiments of the present disclosure.
FIG. 4 shows a flow diagram of a content serving method according to further embodiments of the disclosure.
Fig. 5 shows a schematic structural diagram of a content service system according to some embodiments of the present disclosure.
Fig. 6 shows a schematic structural diagram of a content service device according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The inventor researches and discovers that because the edge service node is low in position, the CDN (Content Delivery Network) deployed on the edge service node can improve the quality of video services such as virtual reality, live broadcast and the like, so that the bandwidth is high and the time delay is small. However, in the 5G environment, the CDN service node of the MEC is low in location, and the number of service nodes is large. If the traditional CDN scheduling and caching service mode is adopted, the problems of low content reuse rate and high construction cost can be brought. Meanwhile, the content caching mechanism of the traditional CDN service node is complex, and it is necessary to count content access heat in the edge service node and cache hot access content. When this mechanism is applied to an MEC edge service node, the hardware resource requirements provided by the MEC are very high. Therefore, the CDN of the MEC should make full use of the virtualized advantage of the MEC, and a new content delivery service mechanism is designed to avoid the problem caused by the deployment of the conventional CDN on a virtualized platform, so that the operation efficiency of the CDN of the MEC is improved, and the overall construction cost is reduced.
Fig. 1 shows an architectural diagram of a conventional MEC-based CDN. The CDN center/area node may be collectively referred to as a superior service node, and the edge service node may be referred to as an edge service node for short. Under the MEC-based CDN architecture, GSLB (Global Server Load Balance) directly manages edge service nodes, and because the number of the edge service nodes is large and the change is fast, the management scheduling difficulty is very high. Meanwhile, the MEC edge service node software follows the traditional cache and service architecture, and is complex and low in utilization rate.
Fig. 2 shows an architectural diagram of the MEC-based CDN of the present disclosure. As shown in fig. 2, the traditional architecture of the MEC-based CDN is changed in the present disclosure, the CDN software of the edge service node adopts a lightweight architecture, only the media service and the service scheduling module are reserved, only a small amount of extremely hot content is stored, capabilities such as content cache update are not provided, and the requirements of the MEC-based CDN on MEC hardware resources are greatly reduced. In the lightweight CDN architecture provided by the present disclosure, when a service flow is interactively implemented between a CDN upper-level service node and a CDN edge service node, the edge CDN node only provides a media service function and does not provide a content caching function.
The CDN based on the MEC proposed by the present disclosure mainly includes two types of nodes:
(one) center/regional node: in addition to the traditional CDN center/region node function, functions such as management of a lower-level MEC-based CDN edge service node, MEC-based CDN scheduling, mirror management, and the like need to be added; the CDN center/area node generates a CDN mirror image with the hot content according to the edge traffic conditions, is responsible for management of start and stop of the edge service node virtual machine and the like, and improves the reuse rate of the edge hot content. The GSLB does not need to manage the edge service node, and the CDN center/area node is responsible for dispatching the service request of the hot content to the edge service node, so that the dispatching management difficulty is reduced.
The central/regional node is an entrance for accessing the CDN based on the MEC, and after access control of the node is performed, the service scheduling function of the node schedules the user request to the edge service node for service. The CDN center/regional node comprises modules of access control, heat statistics, service scheduling, mirror image management, CDN management based on MEC and the like.
(1) The access control module is responsible for authenticating the user access request and generating an authentication permit Token, when the user service is redirected to the edge service node, only the Token needs to be checked, and complex authentication management does not need to be carried out.
(2) The heat counting module is responsible for counting the access heat of all contents, and the heat counting module can count the access heat of all contents by base stations and areas respectively according to the characteristics of 5G access.
(3) The service scheduling module is responsible for scheduling the user service request to the subordinate edge service node.
(4) The mirror image management module is responsible for managing the hot content service mirror images, and when a certain content library is heated up, the mirror image management module is responsible for generating the hot content service mirror images. The hot content service image may contain not only a single content, but a combination of a set of hot content. The hot content service mirror image is a virtual machine mirror image, and contains an operating system environment, a CDN media service module, a scheduling module and the like required by a CDN edge service node based on MEC, and is different from the traditional virtual CDN in that the mirror image already contains hot content storage.
(5) And the CDN management module based on the MEC is responsible for managing the start and stop of the CDN edge service node based on the MEC.
(II) a CDN edge service node based on MEC: the light weight design only provides media service and service scheduling function. The CDN service scheduling of the edge service node is different from the service scheduling of the traditional CDN, and is only used for actively scheduling the media service which is being served to a CDN upper-level service node when the utilization rate of the CDN server is low, so that CDN users can be cleared quickly and shut down further.
The start-stop and user access scheduling of the CDN edge service node based on the MEC are controlled by a central node, and the CDN edge service node based on the MEC mainly comprises a media service module and a service scheduling module.
(1) The media service provides the media service needed by the user;
(2) the user access scheduling is used for actively scheduling the media service being served to the upper CDN when the utilization rate of the CDN server is low, so that the CDN users can be cleared quickly and shut down further.
Some embodiments of the disclosed service method are described below in conjunction with fig. 3.
Fig. 3 illustrates a flow diagram of a content service method of some embodiments of the present disclosure. As shown in fig. 3, the present embodiment includes steps S301 to S305.
In step S301, the client sends a DNS scheduling request to global load balancing.
In step S302, the global load balancing sends the IP address of the upper service node to the client.
In step S303, the client transmits a first media service request to the upper service node using the IP address of the upper service node.
In step S304, the superior service node authenticates the first media service request, and sends an authentication pass and a URL of the edge service node to the client.
The step S304 may specifically include steps S304A, S304B, S304C. In step S304A, the access control module of the upper service node authenticates the first media service request. For example, the superior service node may authenticate the first media service request according to information such as a hotlink, a region, a charging policy, and a user name or a password carried by the first media service request. In step S304B, the access control module of the upper service node notifies the service scheduling module of the upper service node that the authentication is passed. In step S304C, the access control module of the upper service node sends the authentication pass and the URL of the edge service node to the client.
In step S305, the client sends a second media service request to the edge service node by using the URL of the edge service node, where the second media service carries the authentication pass.
In step S306, the edge service node provides the content service to the client after checking the authentication pass carried by the second media service.
In the embodiment, the superior service node authenticates the media service request sent by the client, the superior service node generates an authentication pass-certificate after the authentication is completed, and the edge service node performs service authentication according to the authentication pass-certificate, so that the complexity of the edge service node is reduced, the scheduling management complexity of the content distribution network is reduced, and the operation efficiency of the content distribution network is improved.
In some embodiments, the content service method further includes step S307 to step S310.
In step S307, the edge service node counts the number of respective clients to which the second media service request is transmitted.
In step S308, if the number of edge service nodes is less than the first threshold, the edge service node sends the URL of the upper service node to each client.
In step S309, each client transmits a third media service request to the upper service node using the URL of the upper service node.
In step S310, the upper service node shuts down the edge service node.
In this embodiment, the higher-level service node can implement management functions such as deletion of the MEC edge service node subordinate thereto through interaction with the MEC platform. The superior service node can shut down the edge service node with lower access heat, thereby further improving the operation efficiency of the content distribution network.
Further embodiments of the service method of the present disclosure are described below in conjunction with fig. 4.
FIG. 4 shows a flow diagram of a content serving method according to further embodiments of the disclosure. As shown in fig. 4, the present embodiment includes steps S401 to S405.
In step S401, the upper service node determines the access heat of each access content stored by the upper service node.
For example, the heat counting module of the upper service node may count the access heat of each access content. The mirror image management module of the superior service node can inquire the heat degree statistic module to obtain the access heat degree of each access content stored in the superior service node.
In some embodiments, the superior service node determines the access heat of each access content stored by the superior service node in each region.
In step S402, when the access heat of the first access content is greater than the second threshold, the upper service node generates a virtual machine image including the first access content, and the first access content cannot be rewritten.
The step S402 may specifically include the steps S402A and S402B. In step S402A, the image management module of the upper service node generates a virtual machine image including the first access content. In step S402B, the image management module of the upper service node notifies the MEC management module of the upper service node of completion of image generation, so that the MEC management module of the upper service node sends a virtual machine resource request to the MEC platform.
In some embodiments, the virtual machine image further comprises second access content, the second access content having a degree of access heat greater than a second threshold, the second access content not being rewritable.
In some embodiments, the superior service node generates a virtual machine image containing the first access content if the access heat of the first access content in the target area is greater than a second threshold.
In step S403, the upper service node sends a virtual machine resource request to the MEC platform.
In some embodiments, the superior service node sends a virtual machine resource request to the MEC platform of the target area.
In step S404, the MEC platform generates a new virtual machine to create a new edge service node.
In some embodiments, the MEC platform of the target area generates a new virtual machine to create a new edge service node for the target area.
In step S405, the new edge service node downloads and installs the virtual machine image from the upper service node.
The embodiment adopts a lightweight CDN edge service node framework, introduces a lightweight CDN media service module into an edge service node, changes a traditional CDN cache-service mode, and converts the traditional CDN cache-service mode into a new mode of providing services by a central service node cache and the edge service node. The superior service node can generate a CDN mirror image with hot content according to the condition of each edge flow and is responsible for life cycle management such as start-stop of the edge service node virtual machine; the edge service node only provides media service and scheduling, and does not provide functions of cache management, heat statistics and the like. Therefore, the CDN edge service node based on the MEC can be started and stopped according to the change of the content heat degree, and service is flexibly provided for the hot content, so that the content reuse rate of the CDN based on the MEC is greatly improved, the complexity of CDN scheduling management is further reduced, and the operation efficiency of the CDN is improved.
Meanwhile, compared with the traditional CDN based on the MEC which needs service scheduling configuration on the GSLB, the embodiment does not need to configure the GSLB, and can adapt to the characteristics that CDN content hot spots based on the MEC are fast in change and CDN service nodes based on the MEC need to be flexibly deployed according to the hot spots.
An application example of implementing live broadcast of the mobile internet by using the MEC-based CDN in the present disclosure is described below.
The method comprises the steps that a mobile internet live broadcast platform is configured on a CDN platform based on MEC, a live broadcast mirror image is manually generated, and live broadcast start-stop time is defined. And before the live broadcast service is started, the CDN platform based on the MEC pushes the live broadcast mirror image to a specified MEC edge service node and deploys the live broadcast mirror image. When live broadcasting starts, the MEC-based CDN can schedule a user access request to an edge service node according to the deployment position of the MEC-based CDN edge service node, and the edge service node provides service.
An embodiment of implementing mobile internet on demand with the MEC-based CDN of the present disclosure is described below.
In daily statistics of the popularity of the mobile internet on demand, the MEC-based CDN finds that a certain content is centrally accessed in a certain area and has reached an edge service threshold. The MEC-based CDN central node generates an MEC-based CDN edge service image containing the content, pushes the image to an MEC platform of the region, and deploys the MEC-based CDN edge service node. After the node deployment is completed, the MEC-based CDN central node reschedules the user access of the region to the MEC-based CDN edge service node.
Some embodiments of the disclosed content service system are described below in conjunction with fig. 5.
Fig. 5 shows a schematic structural diagram of a content service system according to some embodiments of the present disclosure. As shown in fig. 5, the content service system 50 in the present embodiment includes:
client 501, global load balancing 502, upper level service node 503, edge service node 504. Wherein the client is configured to: sending a DNS scheduling request to global load balancing; global load balancing is configured to: sending the IP address of the superior service node to the client; the client is further configured to: the method comprises the steps that a first media service request is sent to a superior service node by using an IP address of the superior service node; the upper level service node is configured to: authenticating the first media service request, and sending an authentication permit and a URL (uniform resource locator) of an edge service node to the client; the client is further configured to: sending a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit; the edge service node is configured to: and after the authentication permit carried by the second media service is checked, providing content service for the client.
In this embodiment, the higher-level service node can implement management functions such as deletion of the MEC edge service node subordinate thereto through interaction with the MEC platform. The superior service node can shut down the edge service node with lower access heat, thereby further improving the operation efficiency of the content distribution network.
In some embodiments, the edge service node is further configured to: counting the number of each client to which the second media service request is sent; under the condition that the number is smaller than a first threshold value, sending the URL of the superior service node to each client; the clients include respective clients, and are further configured to: sending a third media service request to the superior service node by using the URL of the superior service node; the upper level service node is further configured to: and shutting down the edge service node.
In some embodiments, the content service system further comprises a MEC platform 505. The upper level service node is further configured to: determining the access heat of each access content stored in the superior service node; under the condition that the access heat of the first access content is larger than a second threshold value, generating a virtual machine image containing the first access content, wherein the first access content cannot be rewritten; sending a virtual machine resource request to the MEC platform; the MEC platform is configured to: generating a new virtual machine to create a new edge service node; the edge service node comprises a new edge service node configured to download and install the virtual machine image from the superior service node through the new edge service node.
In some embodiments, the virtual machine image further comprises second access content, the second access content having a degree of access heat greater than a second threshold, the second access content not being rewritable.
In some embodiments, the upper level service node is configured to: determining the access heat of each access content stored in the superior service node in each area; under the condition that the access heat of the first access content in the target area is greater than a second threshold value, generating a virtual machine image containing the first access content; the superior service node sends a virtual machine resource request to an MEC platform of a target area; the MEC platform is configured to: and generating a new virtual machine through the MEC platform of the target area to create a new edge service node for the target area.
The embodiment adopts a lightweight CDN edge service node framework, introduces a lightweight CDN media service module into an edge service node, changes a traditional CDN cache-service mode, and converts the traditional CDN cache-service mode into a new mode of providing services by a central service node cache and the edge service node. The superior service node can generate a CDN mirror image with hot content according to the condition of each edge flow and is responsible for life cycle management such as start-stop of the edge service node virtual machine; the edge service node only provides media service and scheduling, and does not provide functions of cache management, heat statistics and the like. Therefore, the CDN edge service node based on the MEC can be started and stopped according to the change of the content heat degree, and service is flexibly provided for the hot content, so that the content reuse rate of the CDN based on the MEC is greatly improved, the complexity of CDN scheduling management is further reduced, and the operation efficiency of the CDN is improved.
Meanwhile, compared with the traditional CDN based on the MEC which needs service scheduling configuration on the GSLB, the embodiment does not need to configure the GSLB, and can adapt to the characteristics that CDN content hot spots based on the MEC are fast in change and CDN service nodes based on the MEC need to be flexibly deployed according to the hot spots.
Some embodiments of the service device of the present disclosure are described below in conjunction with fig. 6.
Fig. 6 shows a schematic structural diagram of a content service device according to some embodiments of the present disclosure. As shown in fig. 6, the content service apparatus 60 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 being configured to perform the content serving method of any of the foregoing embodiments based on instructions stored in the memory 610.
The content service apparatus 60 may further include an input-output interface 630, a network interface 640, a storage interface 650, and the like. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be through a bus 660, for example. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the content serving method in any of the foregoing embodiments.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (12)
1. A content service method, comprising:
a client side sends a DNS scheduling request to global load balancing;
the global load balance sends the IP address of the superior service node to the client;
the client sends a first media service request to a superior service node by using the IP address of the superior service node;
the superior service node authenticates the first media service request and sends an authentication permit and a URL (uniform resource locator) of the edge service node to the client;
the client sends a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit;
and after the edge service node checks the authentication permit carried by the second media service, the edge service node provides content service for the client.
2. The content service method of claim 1, further comprising:
the edge service node counts the number of each client side which sends the second media service request to the edge service node;
the edge service nodes send the URLs of the superior service nodes to the clients under the condition that the number of the edge service nodes is smaller than a first threshold value;
each client sends a third media service request to the superior service node by using the URL of the superior service node;
and the upper service node shuts down the edge service node.
3. The content service method of claim 1, further comprising:
the superior service node determines the access heat of each access content stored in the superior service node;
the superior service node generates a virtual machine image containing the first access content under the condition that the access heat of the first access content is greater than a second threshold value, wherein the first access content cannot be rewritten;
the superior service node sends a virtual machine resource request to the mobile edge computing MEC platform;
the MEC platform generates a new virtual machine to create a new edge service node;
and the new edge service node downloads and installs the virtual machine image from the superior service node.
4. The content service method of claim 3, wherein the virtual machine image further contains second access content, the second access content having a degree of access heat greater than a second threshold value, the second access content not being rewritable.
5. The content service method as claimed in claim 3,
the step of determining the access heat of each access content stored by the superior service node comprises the following steps: the superior service node determines the access heat of each access content stored by the superior service node in each area;
the step of generating the virtual machine image containing the first access content by the superior service node under the condition that the access heat of the first access content is greater than a second threshold value comprises the following steps: the superior service node generates a virtual machine image containing the first access content under the condition that the access heat of the first access content in the target area is greater than a second threshold value;
the step of sending the virtual machine resource request to the mobile edge computing MEC platform by the superior service node comprises the following steps: the superior service node sends a virtual machine resource request to an MEC platform of a target area;
the MEC platform generating a new virtual machine to create a new edge service node comprises: the MEC platform of the target area generates a new virtual machine to create a new edge service node for the target area.
6. A content service system comprises a client, a global load balance, a superior service node and an edge service node; wherein the content of the first and second substances,
the client is configured to: sending a DNS scheduling request to global load balancing;
global load balancing is configured to: sending the IP address of the superior service node to the client;
the client is further configured to: the method comprises the steps that a first media service request is sent to a superior service node by using an IP address of the superior service node;
the upper level service node is configured to: authenticating the first media service request, and sending an authentication permit and a URL (uniform resource locator) of an edge service node to the client;
the client is further configured to: sending a second media service request to the edge service node by using the URL of the edge service node, wherein the second media service carries an authentication permit;
the edge service node is configured to: and after the authentication permit carried by the second media service is checked, providing content service for the client.
7. The content service system of claim 6,
the edge service node is further configured to: counting the number of each client to which the second media service request is sent; under the condition that the number is smaller than a first threshold value, sending the URL of the superior service node to each client;
the clients include the respective clients and are further configured to: sending a third media service request to the superior service node by using the URL of the superior service node;
the superior service node is further configured to: and shutting down the edge service node.
8. The content services system of claim 6, wherein the content services system further comprises a Mobile Edge Computing (MEC) platform;
the superior service node is further configured to: determining the access heat of each access content stored in the superior service node; under the condition that the access heat of the first access content is larger than a second threshold value, generating a virtual machine image containing the first access content, wherein the first access content cannot be rewritten; sending a virtual machine resource request to the MEC platform;
the MEC platform is configured to: generating a new virtual machine to create a new edge service node;
the edge service node comprises a new edge service node configured to download and install the virtual machine image from the superior service node through the new edge service node.
9. The content serving system according to claim 8, wherein the virtual machine image further contains second access content, the degree of access heat of the second access content is larger than a second threshold value, and the second access content is not rewritable.
10. The content service system of claim 8,
the superior service node is configured to: determining the access heat of each access content stored in the superior service node in each area; under the condition that the access heat of the first access content in the target area is greater than a second threshold value, generating a virtual machine image containing the first access content; the superior service node sends a virtual machine resource request to an MEC platform of a target area;
the MEC platform comprises a MEC platform of a target area configured to: and generating a new virtual machine through the MEC platform of the target area to create a new edge service node for the target area.
11. A content service apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to execute the content service method of any of claims 1-5 based on instructions stored in the memory.
12. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the content service method of any one of claims 1 to 5.
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