CN112929676A

CN112929676A - Live data stream acquisition method, device, node and system

Info

Publication number: CN112929676A
Application number: CN201911244278.2A
Authority: CN
Inventors: 李建华
Original assignee: Beijing Kingsoft Cloud Network Technology Co Ltd; Beijing Kingsoft Cloud Technology Co Ltd
Current assignee: Beijing Kingsoft Cloud Network Technology Co Ltd; Beijing Kingsoft Cloud Technology Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2021-06-08

Abstract

The embodiment of the invention provides a method, a device, a node and a system for acquiring a live data stream, which comprise the following steps: the scheduling node receives a scheduling request sent by a first edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream; judging whether a target edge service node storing a first direct broadcast data stream exists in a plurality of edge service nodes or not based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream; if the first direct-broadcasting data stream exists, the identification information of the target edge service node is sent to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the target edge service node according to the identification information and returns the first direct-broadcasting data stream to the client equipment. At this time, the first edge service node does not need to communicate with the source node, thereby reducing the bandwidth resource consumption of the source node.

Description

Live data stream acquisition method, device, node and system

Technical Field

The invention relates to the technical field of network live broadcast, in particular to a live broadcast data stream acquisition method, a live broadcast data stream acquisition device, a live broadcast data stream acquisition node and a live broadcast data stream acquisition system.

Background

A live Content Delivery Network (CDN) system is mainly used to provide a live data stream for a user, see fig. 1, where fig. 1 is a schematic structural diagram of an existing live CDN system, and the system is composed of a source node 110 and an edge service node cluster 120, where the edge service node cluster 120 includes a large number of edge service nodes deployed in different areas.

The client devices in the client device cluster 130 upload live data streams to the source node 110 through the edge service node closest to the client devices, when a user wants to watch a target live data stream, a live data stream acquisition request is sent to the edge service node closest to the client device used by the user, when the target live data stream is stored in the edge service node, the target live data stream is directly returned to the client devices, when the target live data stream does not exist in the edge service node, the edge service node sends a live data stream acquisition request to the source node 110 to acquire the target live data stream, and the target live data stream is locally stored while the target live data stream is returned to the client devices.

In the above live data stream obtaining process, when there is no target live data stream in the nearby edge service node, it needs to communicate with the source node to obtain the target live data stream from the source node, so the bandwidth resource consumption of the source node is large.

Disclosure of Invention

The embodiment of the invention aims to provide a method, a device, a node and a system for acquiring a live data stream, so as to reduce the consumption of bandwidth resources of a source node. The specific technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides a live broadcast data stream acquisition method, which is applied to a scheduling node in a live broadcast content delivery network CDN system, where the live broadcast CDN system further includes: a source node and a plurality of edge service nodes, the method comprising:

receiving a scheduling request sent by a first edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream;

judging whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes or not based on the pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

if the first direct-broadcasting data stream exists, the identification information of the target edge service node is sent to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the target edge service node according to the identification information, and the first direct-broadcasting data stream is returned to client equipment.

Further, before the step of determining whether a target edge service node storing the first live data stream exists in the plurality of edge service nodes based on the pre-obtained storage correspondence between each edge service node and each live data stream, the method further includes:

acquiring pre-stored popularity category information of each live data stream, wherein the popularity category information is determined in advance based on a viewing account number of each live data stream acquired from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

determining heat category information of the first direct broadcast data stream based on the heat category information of each direct broadcast data stream;

when the heat degree category information of the first direct-broadcasting data stream is a heat flow category, sending a source return notification to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the source node and returns the first direct-broadcasting data stream to the client equipment;

and when the heat degree type information of the first direct-broadcasting data stream is a non-heat flow type, executing the step of judging whether a target edge service node storing the first direct-broadcasting data stream exists in the plurality of edge service nodes based on the pre-obtained storage corresponding relation between each edge service node and each direct-broadcasting data stream.

Further, the step of determining whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes based on a pre-obtained storage correspondence between each edge service node and each direct broadcast data stream includes:

and judging whether a target edge service node which stores the first direct broadcast data stream and meets a preset condition corresponding to the non-heat flow type exists in the plurality of edge service nodes or not based on the storage corresponding relation between each edge service node and each direct broadcast data stream, which is obtained from each edge service node in advance.

Further, the non-heat flow categories include: cold flow category and warm flow category; the live data stream of the cold flow category is a live data stream of which the viewing account number is smaller than a second preset threshold value; the live data stream of the warm flow category is a live data stream of which the viewing account number is larger than the second preset threshold value and smaller than the first preset threshold value;

the step of judging whether a target edge service node which stores the first direct broadcast data stream and meets a preset condition corresponding to the non-heat flow type exists in the plurality of edge service nodes based on a pre-obtained storage corresponding relationship between each edge service node and each direct broadcast data stream includes:

when the heat class information of the first direct broadcast data stream is a cold stream class, judging whether a target edge service node which stores the first direct broadcast data stream and belongs to the same operator with the first edge service node exists in the plurality of edge service nodes based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

and when the heat category information of the first direct broadcasting data stream is a warm stream category, judging whether a target edge service node which is in the same preset geographical area range and belongs to the same operator with the first edge service node and stores the first direct broadcasting data stream exists in the plurality of edge service nodes based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcasting data stream.

Further, the method further comprises:

when a viewing account reporting request sent by a second edge service node is received, determining heat category information of a second live data stream according to a viewing account of the second live data stream contained in the viewing account reporting request;

and updating pre-stored heat category information of the second live data stream based on the determined heat category information of the second live data stream.

Further, the method further comprises:

when a data stream reporting request sent by a third edge service node is received, updating a pre-obtained storage corresponding relation between the third edge service node and each live broadcast data stream based on the data stream reporting request; the data stream reporting request is sent to the scheduling node by the third edge service node after receiving a third live data stream broadcasting notification sent by the client device; the data stream reporting request includes identification information of the third edge service node, identification information of the third live data stream, and storage location information of the third live data stream in the source node.

Further, the identification information of the target edge service node includes a network address of the target edge service node.

Further, the method further comprises:

if the target edge service node storing the first direct-broadcasting data stream does not exist in the plurality of edge service nodes, sending a source-back notification to the first edge service node, so that the first edge service node acquires the first direct-broadcasting data stream from the source node and returns the first direct-broadcasting data stream to the client equipment.

In a second aspect, an embodiment of the present invention provides a live broadcast data stream obtaining method, which is applied to an edge service node in a live broadcast content delivery network CDN system, where the live broadcast CDN system further includes: a source node and a scheduling node, the method comprising:

receiving an acquisition request sent by client equipment, wherein the acquisition request is used for requesting to acquire a first direct broadcast data stream;

judging whether the first direct broadcasting data stream exists locally;

if not, sending a scheduling request to the scheduling node so that the scheduling node judges whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes or not based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream; if yes, the identification information of the target edge service node is sent to the edge service node; the scheduling request is used for requesting to acquire the first direct broadcast data stream;

acquiring the first direct-broadcast data stream from the target edge service node according to the identification information of the target edge service node;

and returning the first direct broadcasting data stream to the client equipment.

Further, after the step of sending a scheduling request to the scheduling node, the method further includes:

when a source return notification sent by the scheduling node is received, acquiring the first direct-broadcast data stream from the source node; the source return notification is sent by the scheduling node when the scheduling node judges that a target edge service node storing the first direct broadcast data stream does not exist in the plurality of edge service nodes based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

when a source return notification sent by the scheduling node is received, acquiring the first direct-broadcast data stream from the source node; the source return notification is used for acquiring pre-stored heat category information of each live broadcast data stream for the scheduling node, and determining that the heat category information of the first live broadcast data stream is sent when the heat category information is a heat flow category based on the heat category information of each live broadcast data stream; or, the back-source notification is sent when the scheduling node determines that the heat category information of the first direct broadcast data stream is a non-heat flow category based on the heat category information of each direct broadcast data stream, and determines that no target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes based on a pre-obtained storage corresponding relationship between each edge service node and each direct broadcast data stream; the popularity category information is determined by the scheduling node in advance based on a viewing account number of each live data stream obtained from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

Further, the method further comprises:

sending a viewing account reporting request to the scheduling node, so that the scheduling node determines heat category information of a second live data stream according to a viewing account of the second live data stream contained in the viewing account reporting request; and updating pre-stored heat category information of the second live broadcast data stream based on the heat category information of the second live broadcast data stream.

Further, the method further comprises:

when receiving a broadcast notification of a third live data stream sent by a client device, sending a data stream reporting request to the scheduling node, so that the scheduling node updates a pre-obtained storage correspondence between each edge service node and each live data stream based on the data stream reporting request, where the data stream reporting request includes identification information of the edge service node that sent the data stream reporting request, identification information of the third live data stream, and storage location information of the third live data stream in the source node.

Further, the method further comprises:

and if the first direct broadcasting data stream exists locally, returning the first direct broadcasting data stream to the client equipment.

In a third aspect, an embodiment of the present invention provides a live broadcast data stream obtaining apparatus, which is applied to a scheduling node in a live broadcast content delivery network CDN system, where the live broadcast CDN system further includes: a source node and a plurality of edge service nodes, the apparatus comprising:

the scheduling request receiving module is used for receiving a scheduling request sent by a first edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream;

the first judgment module is used for judging whether a target edge service node storing the first direct broadcast data stream exists in the edge service nodes or not based on the pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

and the identification information sending module is used for sending the identification information of the target edge service node to the first edge service node if the target edge service node storing the first direct-broadcasting data stream exists in the plurality of edge service nodes, so that the first edge service node obtains the first direct-broadcasting data stream from the target edge service node according to the identification information and returns the first direct-broadcasting data stream to the client equipment.

Further, the apparatus further comprises:

a hot category information obtaining module, configured to obtain hot category information of each pre-stored live data stream before determining whether a target edge service node storing the first live data stream exists in the edge service nodes based on a pre-obtained storage correspondence between each edge service node and each live data stream, where the hot category information is determined in advance based on a viewing account of each live data stream obtained from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

the first heat category information determining module is used for determining heat category information of the first direct broadcast data stream based on the heat category information of each direct broadcast data stream;

a first source return notification sending module, configured to send a source return notification to the first edge service node when the heat category information of the first direct broadcast data stream is a heat flow category, so that the first edge service node obtains the first direct broadcast data stream from the source node and returns the first direct broadcast data stream to the client device;

the first determining module is specifically configured to, when the heat category information of the first live broadcast data stream is a non-heat-flow category, determine whether a target edge service node, in which the first live broadcast data stream is stored, exists in the plurality of edge service nodes based on a pre-obtained storage correspondence between each edge service node and each live broadcast data stream.

Further, the first determining module is specifically configured to determine, based on a storage correspondence between each edge service node and each live broadcast data stream, which is obtained from each edge service node in advance, whether a target edge service node exists in the plurality of edge service nodes, where the target edge service node stores the first live broadcast data stream and meets a preset condition corresponding to the non-heat flow category.

the first judging module is specifically configured to:

Further, the apparatus further includes:

the second popularity category information determining module is used for determining popularity category information of a second live data stream according to a viewing account of the second live data stream contained in a viewing account reporting request when the viewing account reporting request sent by a second edge service node is received;

and the heat category information updating module is used for updating pre-stored heat category information of the second live broadcast data stream based on the determined heat category information of the second live broadcast data stream.

Further, the apparatus further includes:

the storage corresponding relation updating module is used for updating the pre-obtained storage corresponding relation between the third edge service node and each live broadcast data stream based on a data stream reporting request when the data stream reporting request sent by the third edge service node is received; the data stream reporting request is sent to the scheduling node by the third edge service node after receiving a third live data stream broadcasting notification sent by the client device; the data stream reporting request includes identification information of the third edge service node, identification information of the third live data stream, and storage location information of the third live data stream in the source node.

Further, the apparatus further includes:

a second source return notification sending module, configured to send a source return notification to the first edge service node if there is no target edge service node in the plurality of edge service nodes, where the target edge service node stores the first direct-broadcast data stream, so that the first edge service node obtains the first direct-broadcast data stream from the source node and returns the first direct-broadcast data stream to the client device.

In a fourth aspect, an embodiment of the present invention provides a live broadcast data stream obtaining apparatus, which is applied to an edge service node in a live broadcast content delivery network CDN system, where the live broadcast CDN system further includes: source node and scheduling node, the apparatus includes:

an acquisition request receiving module, configured to receive an acquisition request sent by a client device, where the acquisition request is used to request to acquire a first direct broadcast data stream;

the second judging module is used for judging whether the first direct broadcasting data stream exists locally;

a scheduling request sending module, configured to send a scheduling request to the scheduling node if the first direct broadcast data stream does not exist locally, so that the scheduling node determines, based on a pre-obtained storage correspondence between each edge service node and each direct broadcast data stream, whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes; if the target edge service node exists, the identification information of the target edge service node is sent to the edge service node; the scheduling request is used for requesting to acquire the first direct broadcast data stream;

a first data stream obtaining module, configured to obtain the first direct broadcast data stream from the target edge service node according to the identification information of the target edge service node;

a first data stream returning module, configured to return the first direct broadcast data stream to the client device.

Further, the apparatus further comprises:

a second data stream obtaining module, configured to, after the scheduling request is sent to the scheduling node, obtain, when a source return notification sent by the scheduling node is received, the first direct-broadcast data stream from the source node, and then trigger a second data stream return module; the source return notification is sent by the scheduling node when the scheduling node judges that a target edge service node storing the first direct broadcast data stream does not exist in the plurality of edge service nodes based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

and the second data stream returning module is used for returning the first direct-broadcasting data stream to the client equipment.

Further, the apparatus further comprises:

a third data stream obtaining module, configured to, after the scheduling request is sent to the scheduling node, obtain, when a source return notification sent by the scheduling node is received, the first direct broadcast data stream from the source node, and then trigger a third data stream return module; the source return notification is used for acquiring pre-stored heat category information of each live broadcast data stream for the scheduling node, and determining that the heat category information of the first live broadcast data stream is sent when the heat category information is a heat flow category based on the heat category information of each live broadcast data stream; or, the back-source notification is sent when the scheduling node determines that the heat category information of the first direct broadcast data stream is a non-heat flow category based on the heat category information of each direct broadcast data stream, and determines that no target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes based on a pre-obtained storage corresponding relationship between each edge service node and each direct broadcast data stream; the popularity category information is determined by the scheduling node in advance based on a viewing account number of each live data stream obtained from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

the third data stream returning module is configured to return the first direct broadcast data stream to the client device.

Further, the apparatus further comprises:

a viewing account reporting request sending module, configured to send a viewing account reporting request to the scheduling node, so that the scheduling node determines heat category information of a second live data stream according to a viewing account of the second live data stream included in the viewing account reporting request; and updating pre-stored heat category information of the second live broadcast data stream based on the heat category information of the second live broadcast data stream.

Further, the apparatus further comprises:

and a data stream reporting request sending module, configured to send a data stream reporting request to the scheduling node when receiving a broadcast start notification of a third live data stream sent by a client device, so that the scheduling node updates a pre-obtained storage correspondence between each edge service node and each live data stream according to the data stream reporting request, where the data stream reporting request includes identification information of the edge service node that sends the data stream reporting request, identification information of the third live data stream, and storage location information of the third live data stream in the source node.

Further, the apparatus further comprises:

a fourth data stream returning module, configured to return the first direct broadcast data stream to the client device if the first direct broadcast data stream locally exists.

In a fifth aspect, an embodiment of the present invention provides a scheduling node, including: the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;

a memory for storing a computer program;

and a processor, configured to implement, when executing the program stored in the memory, the steps of the live data stream acquisition method according to any one of the first aspect.

In a sixth aspect, an embodiment of the present invention provides an edge service node, including: the system comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;

a memory for storing a computer program;

and the processor is used for realizing the steps of the live data stream acquisition method of any one of the second aspect when executing the program stored in the memory.

In a seventh aspect, an embodiment of the present invention provides a live content distribution network system, including: a source node, a scheduling node and an edge service node;

the scheduling node is configured to implement the steps of the live data stream acquisition method according to any one of the first aspect;

the edge service node is configured to implement the steps of the live data stream acquisition method according to any one of the second aspects.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the live data stream acquisition method according to any one of the first aspect and the second aspect.

In a ninth aspect, an embodiment of the present invention further provides a computer program product containing instructions, which when run on a computer, causes the computer to perform the steps of the live data stream acquisition method according to any one of the first aspect and the second aspect.

In the method, the device, the node and the system for acquiring the live broadcast data stream, a scheduling node in a CDN system of a live broadcast content delivery network receives a scheduling request sent by a first edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream; judging whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes or not based on the pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream; if the first direct-broadcasting data stream exists, the identification information of the target edge service node is sent to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the target edge service node according to the identification information, and the first direct-broadcasting data stream is returned to client equipment. In the embodiment of the invention, when the first direct-broadcast data stream does not exist in the first edge service node, the scheduling request is sent to the scheduling node, so that the scheduling node determines whether a target edge service node storing the first direct-broadcast data stream exists in other edge service nodes, and if the target edge service node exists, the first edge service node acquires the first direct-broadcast data stream from the target edge service node.

Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.

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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a conventional live CDN system;

fig. 2 is a schematic structural diagram of a live CDN system according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a scheduling node of the live streaming CDN system shown in fig. 2, to which the method for acquiring a live data stream according to the embodiment of the present invention is applied;

fig. 4 is another schematic flow chart of the method for acquiring a live data stream according to the embodiment of the present invention applied to a scheduling node in the live CDN system shown in fig. 2;

fig. 5 is a schematic flow chart of a live data stream acquisition method applied to an edge service node in the live CDN system shown in fig. 2 according to the embodiment of the present invention;

fig. 6 is a flowchart illustrating interaction of a specific example of a live data stream acquisition method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a live data stream acquiring apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another live data stream acquiring apparatus according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a scheduling node according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of an edge service node according to an embodiment of the present invention.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

In order to reduce the bandwidth resource consumption of a source node, embodiments of the present invention provide a live broadcast data stream acquisition method, a live broadcast data stream acquisition device, a scheduling node, an edge service node, and a live broadcast CDN system.

Referring to fig. 2, fig. 2 is a schematic structural diagram of a live CDN system according to an embodiment of the present invention, where the system is added with a scheduling node 140 on the basis of the live CDN system shown in fig. 1.

The node in the embodiment of the present invention may be an electronic device such as a server, and the source node may be a source node cluster including a plurality of servers.

Referring to fig. 3, fig. 3 is a schematic flow diagram of a scheduling node in the live CDN system shown in fig. 2, where the method for acquiring a live data stream according to the embodiment of the present invention is applied to the live CDN system, and specifically includes the following steps:

step 301, receiving a scheduling request sent by a first edge service node, where the scheduling request is used to request to acquire a first direct broadcast data stream.

The first edge service node in this step may be any edge service node in the edge service node cluster. When a user using a client device wants to view a first direct-broadcast data stream, an obtaining request for requesting to obtain the first direct-broadcast data stream may be sent to a first edge service node through the client device, and after receiving the obtaining request, the first edge service node sends a scheduling request to a scheduling node in a case where it is determined that the first direct-broadcast data stream does not exist locally, where the scheduling request includes identification information of the first direct-broadcast data stream, for example, a stream name of the first direct-broadcast data stream.

Step 302, based on the pre-obtained storage correspondence relationship between each edge service node and each live broadcast data stream, determining whether a target edge service node storing the first live broadcast data stream exists in the plurality of edge service nodes. If so, go to step 303.

If the target edge service node storing the first direct-broadcasting data stream does not exist in the plurality of edge service nodes, a source return notification is sent to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the source node and returns the first direct-broadcasting data stream to the client equipment.

The storage corresponding relation between each edge service node and each live broadcast data stream in the scheduling node is obtained from each edge service node in advance. After the client obtains the specified live broadcast data stream through the edge service node, the edge service node stores the specified live broadcast data stream, and at this time, the scheduling center node may obtain the following information from the edge service node: the edge service node stores the specified live broadcast data stream.

Therefore, if a certain client device obtains a first direct broadcast data stream through an edge service node before the current scheduling request, the edge service node stores the first direct broadcast data stream, and the edge service node is a target edge service node. Further, if there are a plurality of edge service nodes storing the first direct broadcast data stream, one of the edge service nodes may be selected as a target edge service node, where a selection manner of the target edge service node is not limited.

If no client device obtains the first direct broadcast data stream through the edge service node before the scheduling request, a target edge service node storing the first direct broadcast data stream does not exist in all the edge service nodes, and at this time, a source return notification is sent to the first edge service node.

Step 303, sending the identification information of the target edge service node to the first edge service node, so that the first edge service node obtains the first direct-broadcast data stream from the target edge service node according to the identification information, and returns the first direct-broadcast data stream to the client device.

As can be seen from the foregoing embodiments, in the embodiments of the present invention, when there is no first direct broadcast data stream in the first edge service node, a scheduling request is sent to the scheduling node, so that the scheduling node determines whether there is a target edge service node storing the first direct broadcast data stream in other edge service nodes, and if there is a target edge service node storing the first direct broadcast data stream, the first edge service node obtains the first direct broadcast data stream from the target edge service node.

Referring to fig. 4, fig. 4 is another schematic flow diagram of the live data stream obtaining method applied to the scheduling node in the live CDN system shown in fig. 2, where the method includes the following steps:

step 401, receiving a scheduling request sent by a first edge service node, where the scheduling request is used to request to acquire a first direct broadcast data stream.

The scheduling request is sent after the first edge service node receives an acquisition request for a first direct-broadcast data stream sent by a client device in communication connection with the first edge service node, and determines that the first direct-broadcast data stream does not exist in the first edge service node.

The content of step 401 is the same as that of step 301, and is not described herein again.

Step 402, obtaining pre-stored hot category information of each live data stream.

The popularity category information is determined in advance based on the viewing account of each live data stream obtained from each edge service node. The heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value; the non-heat flow categories include: cold flow category and warm flow category; the live data stream of the cold flow type is a live data stream of which the viewing account number is smaller than a second preset threshold value; the live data stream of the temperature stream category is a live data stream of which the viewing account number is larger than a second preset threshold value and smaller than a first preset threshold value.

Specifically, the live data stream with the viewing account number larger than a first preset threshold is the live data stream with the viewing account number larger than the first preset threshold; correspondingly, the live data streams of the cold flow category are live data streams of which the number of the viewing accounts is smaller than a second preset threshold value; the live data stream of the warm flow category is the live data stream of which the number of the viewing accounts is larger than a second preset threshold and smaller than a first preset threshold.

Further, since the viewing account of the live data stream may change, the hot category information of each live data stream may also change, and the hot category information in the scheduling node needs to be updated, and the hot category information may be updated in the following manner:

In the update process, the second edge service node may be any edge service node.

Step 403, determining heat category information of the first live data stream based on the heat category information of each live data stream. When the heat category information of the first direct broadcast data stream is the heat flow category, executing step 404; when the hot category information of the first direct broadcast data stream is the cold category, execute step 405; when the heat category information of the first direct current data stream is the warm stream category, step 406 is executed.

Step 404, sending a source return notification to the first edge service node, so that the first edge service node obtains the first direct-broadcast data stream from the source node, and returns the first direct-broadcast data stream to the client device.

When the heat category information of the first direct broadcast data stream is a heat category, it indicates that there are many accounts watching or wanting to watch the direct broadcast data stream, and at this time, in order to avoid a live broadcast stuck problem caused by scheduling a plurality of first edge service nodes that send scheduling requests for requesting to acquire the direct broadcast data stream to the same target edge service node, a source return notification may be sent to the plurality of first edge service nodes, so that the first edge service nodes acquire the first direct broadcast data stream from the source node and return the first direct broadcast data stream to the client device.

Step 405, based on the storage correspondence between each edge service node and each live broadcast data stream obtained from each edge service node in advance, determining whether a target edge service node, which stores a first live broadcast data stream and belongs to the same operator as the first edge service node, exists in the plurality of edge service nodes; if yes, go to step 407; if not, go back to step 404.

In this step, in order to improve the transmission quality of the live data stream, an edge service node, which stores the first live data stream and belongs to the same operator as the first edge service node, in the plurality of edge service nodes may be determined as a target edge service node.

The storage corresponding relation between each edge service node and each live broadcast data stream in the scheduling node is obtained from each edge service node in advance. After the client device obtains the specified live data stream through the edge service node, the edge service node stores the specified live data stream, and at this time, the scheduling node may obtain the following information from the edge service node: the edge service node stores the specified live broadcast data stream.

Further, since the live data stream is real-time data, when the network is interrupted or live broadcasting is finished, the live data stream is deleted, and therefore, the live data stream stored in each edge service node also changes in real time, and therefore, the scheduling node also needs to update the obtained storage correspondence between each edge service node and each live data stream.

Further, when a data stream reporting request sent by the third edge service node is received, updating a pre-obtained storage corresponding relationship between the third edge service node and each live broadcast data stream based on the data stream reporting request; the data stream reporting request is sent to the scheduling node by the third edge service node after receiving a third live data stream broadcasting notification sent by the client device; the data flow reporting request comprises identification information of the third edge service node, identification information of the third live data flow and storage position information of the third live data flow in the source node.

Further, when a fourth live broadcast data stream deletion request sent by a fourth edge service node is received, based on the fourth live broadcast data stream deletion request, the pre-obtained storage corresponding relationship between each edge service node and each live broadcast data stream is updated, and specifically, the storage corresponding relationship between the fourth edge service node and the fourth live broadcast data stream is deleted.

In the update process, the third edge service node and the fourth edge service node may be any edge service node.

Step 406, based on the storage correspondence relationship between each edge service node and each live broadcast data stream, which is obtained from each edge service node in advance, determining whether a first live broadcast data stream is stored in the plurality of edge service nodes, and the edge service nodes and the first edge service node are located in the same preset geographical area range and belong to the target edge service node of the same operator; if yes, go to step 407; if not, go back to step 404.

Compared with a cold-flow type live data stream, the number of accounts watching or wanting to watch a warm-flow type live data stream is large, so that the live broadcast seizure problem caused by scheduling a plurality of first edge service nodes which are located in different preset geographical areas and send scheduling requests for requesting to obtain the live data stream to the same target edge service node is avoided, when the target edge service node is determined, the target edge service node can be required to be located in the same preset geographical area as the first live data stream, and the target edge service node and the first edge service node belong to the edge service node of the same operator.

Step 407, sending the identification information of the target edge service node to the first edge service node, so that the first edge service node obtains the first direct-broadcast data stream from the target edge service node according to the identification information, and returns the first direct-broadcast data stream to the client device.

In the embodiment shown in fig. 4, according to the heat category information of each live data stream, heat category information of a first live data stream is determined, and when it is determined that the heat category information of the first live data stream is a cold stream category or a warm stream category and a target edge service node exists in other edge service nodes, the first edge service node acquires the first live data stream from the target edge service node without communicating with a source node or acquiring the first live data stream from the source node, so that bandwidth resource consumption of the source node is reduced; when the heat degree type information of the first direct broadcasting data flow is determined to be the heat flow type, a source notification is sent back to the first edge service node, so that the first edge service node obtains the first direct broadcasting data flow from the source node, and the problem of direct broadcasting blockage caused by dispatching a plurality of first edge service nodes to the same target edge service node is avoided.

Meanwhile, when the fact that the heat category information of the first direct broadcast data stream is the cold stream category is determined, the edge service nodes which store the first direct broadcast data stream and belong to the same operator with the first edge service node are determined to be target edge service nodes in the plurality of edge service nodes, and therefore the transmission quality of the direct broadcast data stream can be improved.

And when the heat category information of the first direct broadcast data stream is determined to be the temperature stream category, when the target edge service node is determined, the target edge service node is required to be an edge service node which has the first direct broadcast data stream and belongs to the same operator as the first edge service node, and the target edge service node and the first edge service node are also required to be located in the same preset geographical area, so that the problem of live broadcast blockage caused by dispatching a plurality of first edge service nodes which are located in different preset geographical areas and send dispatching requests for requesting to obtain the live broadcast data stream to the same target edge service node is avoided, and therefore, the transmission quality of the live broadcast data stream is further improved.

Referring to fig. 5, fig. 5 is a schematic flow chart of the method for acquiring a live data stream, which is applied to an edge service node in the live CDN system shown in fig. 2 and includes the following steps:

step 501, receiving an acquisition request sent by a client device, where the acquisition request is used to request to acquire a first direct broadcast data stream.

Step 502, judging whether a first direct-broadcasting data stream exists locally; if not, go to step 503; and if so, returning the locally-existing first direct-broadcasting data stream to the client equipment.

Step 503, sending a scheduling request to a scheduling node, so that the scheduling node determines whether a target edge service node storing a first direct broadcast data stream exists in a plurality of edge service nodes based on a pre-obtained storage corresponding relationship between each edge service node and each direct broadcast data stream; if yes, the identification information of the target edge service node is sent to the edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream.

Further, when the scheduling node determines that there is no target edge service node storing the first direct-broadcast data stream in the plurality of edge service nodes based on the pre-obtained storage corresponding relationship between each edge service node and each direct-broadcast data stream, a source return notification is sent to the edge service nodes, and when the edge service nodes receive the source return notification, the first direct-broadcast data stream is directly obtained from the source node and returned to the client device.

Further, the scheduling node may first obtain pre-stored heat category information of each live broadcast data stream, and determine the heat category information of the first live broadcast data stream based on the heat category information of each live broadcast data stream, where the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value.

When the heat category information of the first direct-broadcast data stream is a heat flow category or when the heat category information of the first direct-broadcast data stream is a non-heat flow category and the scheduling node judges that a target edge service node storing the first direct-broadcast data stream does not exist in the plurality of edge service nodes based on the pre-obtained storage corresponding relation between each edge service node and each direct-broadcast data stream, a source return notification is sent to the edge service nodes, and when the edge service nodes receive the source return notification, the first direct-broadcast data stream is directly obtained from the source node and returned to the client device.

Step 504, according to the identification information of the target edge service node, a first direct-broadcast data stream is obtained from the target edge service node.

Step 505, the first direct broadcast data stream is returned to the client device.

Further, the method provided by the embodiment of the present invention further includes:

sending a viewing account reporting request to a scheduling node, so that the scheduling node determines heat category information of a second live data stream according to a viewing account of the second live data stream contained in the viewing account reporting request; and updating the pre-stored hot category information of the second live broadcast data stream based on the hot category information of the second live broadcast data stream.

when receiving a broadcast notification of a third live data stream sent by the client device, sending a data stream report request to the scheduling node, so that the scheduling node updates the pre-obtained storage correspondence between each edge service node and each live data stream based on the data stream report request, wherein the data stream report request includes identification information of the edge service node sending the data stream report request, identification information of the third live data stream, and storage location information of the third live data stream in the source node.

In the embodiment shown in fig. 5, when the first direct-broadcast data stream does not exist in the first edge service node, a scheduling request is sent to the scheduling node, so that the scheduling node determines whether a target edge service node storing the first direct-broadcast data stream exists in other edge service nodes, and if so, the first edge service node acquires the first direct-broadcast data stream from the target edge service node.

Referring to fig. 6, fig. 6 is a specific example interaction flowchart of a live data stream acquisition method provided by the embodiment of the present invention, which specifically includes the following steps:

step 601, the client device sends an acquisition request to the first edge service node.

The obtaining request is used for requesting to obtain the first direct-broadcasting data stream.

Step 602, a first edge service node determines whether a first direct-broadcast data stream exists locally; if yes, go to step 603; if not, go to step 604;

step 603, the first edge service node returns the locally existing first direct data stream to the client device.

In step 604, the first edge serving node sends a scheduling request to the scheduling node.

The scheduling request is used for requesting to acquire a first direct-broadcast data stream.

Step 605, the scheduling node obtains pre-stored popularity category information of each live data stream, where the popularity category information is determined in advance based on the viewing account of each live data stream obtained from each edge service node.

The heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value; the non-heat flow categories include: cold flow category and warm flow category; the live data stream of the cold flow type is a live data stream of which the viewing account number is smaller than a second preset threshold value; the live data stream of the temperature stream category is a live data stream of which the viewing account number is larger than a second preset threshold value and smaller than a first preset threshold value.

Further, since the viewing account of the live data stream may change, the hot category information of each live data stream may also change, and the hot category information in the scheduling center node needs to be updated, and the hot category information may be updated in the following manner:

In the update process, the second edge service node may be any edge service node. Specifically, the edge service node may report a viewing account of the specified live data stream to the scheduling node periodically, so that the scheduling node determines and updates the heat category information of the specified live data stream according to the reported viewing account.

Step 606, the scheduling node determines the heat category information of the first live data stream based on the heat category information of each live data stream. When the hot category information of the first direct broadcast data stream is the cold category, execute step 607; when the heat category information of the first direct broadcast data stream is the warm stream category, execute step 608; when the heat category information of the first direct broadcast data stream is the heat flow category, executing step 611;

step 607, the scheduling node determines whether there is a target edge service node storing the first direct broadcast data stream and belonging to the same operator as the first edge service node in the plurality of edge service nodes; if yes, go to step 609; if not, go to step 611.

Specifically, the scheduling node determines whether a target edge service node, which stores the first direct broadcast data stream and belongs to the same operator as the first edge service node, exists in the plurality of edge service nodes based on a storage correspondence between each edge service node and each direct broadcast data stream, which is obtained from each edge service node in advance.

Specifically, the edge service node may send a data stream reporting request to the scheduling node after receiving the broadcast notification sent by the client device.

Specifically, when a network interruption is detected or a live broadcast end notification of a specified live broadcast data stream sent by a client is received, the edge service node may send a request for deleting the specified live broadcast data stream to the scheduling node.

In summary, the requests sent by the edge serving node that may be received by the scheduling node include: the method comprises the steps of obtaining a request, a request for reporting a viewing account, a request for reporting a data stream, a request for deleting a live data stream and the like, so that after a scheduling node obtains the request sent by an edge service node, firstly, the request needs to be judged as the type of the request, and then, corresponding operation is executed according to the specific request type.

Step 608, the scheduling node determines whether a target edge service node, which stores the first direct broadcast data stream, is located in the same preset geographic area range as the first edge service node and belongs to the same operator, exists in the plurality of edge service nodes; if yes, go to step 609; if not, go back to step 611.

In step 609, the scheduling node sends the identification information of the target edge service node to the first edge service node.

The identification information of the target edge service node comprises a network address of the target edge service node.

Step 610, the first edge service node obtains the first direct broadcast data stream from the target edge service node according to the identification information of the target edge service node. Thereafter, step 613 is performed.

Step 611, the scheduling node sends a source back notification to the first edge serving node.

In step 612, the first edge service node obtains the first direct broadcast data stream from the source node.

After acquiring the first direct broadcast data stream, the first edge service node may send a source return success notification to the scheduling node, where the notification may include: and the identification information of the first live data stream and the identification information of the first edge service node are used for updating the storage corresponding relation between the first edge service node and each live data stream, which is obtained in advance, by the scheduling node.

Step 613, the first edge service node returns the first direct broadcast data stream to the client device.

In the embodiment shown in fig. 6, according to the heat category information of each live data stream, heat category information of a first live data stream is determined, and when it is determined that the heat category information of the first live data stream is a cold stream category or a warm stream category and a target edge service node exists in other edge service nodes, the first edge service node acquires the first live data stream from the target edge service node without communicating with a source node or acquiring the first live data stream from the source node, so that bandwidth resource consumption of the source node is reduced; when the heat category information of the first direct broadcast data stream is determined to be the heat category, a source notification is sent back to the first edge service node, so that the first edge service node obtains the first direct broadcast data stream from the source node, and the problem of live broadcast blockage caused by dispatching a plurality of first edge service nodes which send dispatching requests for requesting to obtain the live broadcast data stream to the same target edge service node is avoided.

Based on the same inventive concept, according to the live broadcast data stream acquisition method provided in the above embodiment of the present invention, correspondingly, an embodiment of the present invention further provides a live broadcast data stream acquisition apparatus, which is applied to a scheduling node in a live broadcast content delivery network CDN system, and the live broadcast CDN system further includes: the schematic structural diagram of the apparatus is shown in fig. 7, and includes:

a scheduling request receiving module 701, configured to receive a scheduling request sent by a first edge serving node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream;

a first determining module 702, configured to determine, based on a pre-obtained storage correspondence between each edge service node and each live broadcast data stream, whether a target edge service node storing a first live broadcast data stream exists in a plurality of edge service nodes;

the identifier sending module 703 is configured to, if a target edge service node storing the first direct-broadcast data stream exists in the plurality of edge service nodes, send the identifier of the target edge service node to the first edge service node, so that the first edge service node obtains the first direct-broadcast data stream from the target edge service node according to the identifier, and returns the first direct-broadcast data stream to the client device.

Further, the apparatus further comprises:

the system comprises a heat category information acquisition module, a heat category information acquisition module and a data processing module, wherein the heat category information acquisition module is used for acquiring heat category information of each pre-stored live data stream before a target edge service node storing a first live data stream exists in a plurality of edge service nodes according to a pre-acquired storage corresponding relation between each edge service node and each live data stream, and the heat category information is determined in advance based on a viewing account number of each live data stream acquired from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

the first source return notification sending module is used for sending a source return notification to the first edge service node when the heat degree type information of the first direct-broadcast data stream is a heat flow type, so that the first edge service node obtains the first direct-broadcast data stream from the source node and returns the first direct-broadcast data stream to the client device;

the first judging module is specifically configured to, when the heat degree category information of the first live data stream is a non-heat flow category, judge whether a target edge service node storing the first live data stream exists in the plurality of edge service nodes based on a pre-obtained storage correspondence between each edge service node and each live data stream.

Further, the first determining module is specifically configured to determine, based on a storage correspondence relationship between each edge service node and each live broadcast data stream in advance, whether a target edge service node exists among the plurality of edge service nodes, where the target edge service node stores the first live broadcast data stream and meets a preset condition corresponding to a non-heat flow category.

Further, the non-heat flow categories include: cold flow category and warm flow category; the live data stream of the cold flow type is a live data stream of which the viewing account number is smaller than a second preset threshold value; the live data stream of the temperature stream category is a live data stream of which the viewing account number is larger than a second preset threshold and smaller than a first preset threshold;

the first judging module is specifically configured to:

when the heat class information of the first direct-broadcasting data stream is the cold stream class, judging whether a target edge service node which stores the first direct-broadcasting data stream and belongs to the same operator with the first edge service node exists in a plurality of edge service nodes;

and when the heat category information of the first direct broadcasting data stream is a temperature stream category, judging whether a target edge service node which stores the first direct broadcasting data stream, is located in the same preset geographical area range with the first edge service node and belongs to the same operator exists in the plurality of edge service nodes.

Further, the apparatus further comprises:

the second popularity category information determining module is used for determining popularity category information of the second live data stream according to the viewing account of the second live data stream contained in the viewing account reporting request when the viewing account reporting request sent by the second edge service node is received;

Further, the apparatus further comprises:

the storage corresponding relation updating module is used for updating the pre-obtained storage corresponding relation between the third edge service node and each live broadcast data stream based on the data stream reporting request when receiving the data stream reporting request sent by the third edge service node; the data stream reporting request is sent to the scheduling node by the third edge service node after receiving a third live data stream broadcasting notification sent by the client device; the data flow reporting request comprises identification information of the third edge service node, identification information of the third live data flow and storage position information of the third live data flow in the source node.

Further, the apparatus further comprises:

and the second source return notification sending module is used for sending a source return notification to the first edge service node if the target edge service node in which the first direct-broadcast data stream is stored does not exist in the plurality of edge service nodes, so that the first edge service node obtains the first direct-broadcast data stream from the source node and returns the first direct-broadcast data stream to the client device.

In the embodiment shown in fig. 7, when the first direct-broadcast data stream does not exist in the first edge service node, a scheduling request is sent to the scheduling node, so that the scheduling node determines whether a target edge service node storing the first direct-broadcast data stream exists in other edge service nodes, and if so, the first edge service node acquires the first direct-broadcast data stream from the target edge service node.

Based on the same inventive concept, according to the live broadcast data stream acquisition method provided in the above embodiment of the present invention, correspondingly, an embodiment of the present invention further provides another live broadcast data stream acquisition apparatus, which is applied to an edge service node in a live broadcast content delivery network CDN system, and the live broadcast CDN system further includes: a schematic structural diagram of the apparatus is shown in fig. 8, and includes:

an acquisition request receiving module 801, configured to receive an acquisition request sent by a client device, where the acquisition request is used to request to acquire first broadcast data;

a second determining module 802, configured to determine whether a first direct broadcast data stream exists locally;

a scheduling request sending module 803, configured to send, if a first direct broadcast data stream does not exist locally, a scheduling request for the first direct broadcast data stream to a scheduling node, so that the scheduling node determines, based on a pre-obtained storage correspondence between each edge service node and each direct broadcast data stream, whether a target edge service node in which the first direct broadcast data stream is stored exists among a plurality of edge service nodes; if the target edge service node exists, the identification information of the target edge service node is sent to the edge service node;

a first data stream obtaining module 804, configured to obtain a first direct broadcast data stream from a target edge service node according to the identification information of the target edge service node;

a first data stream returning module 805 for returning the first direct data stream to the client device.

Further, the apparatus further comprises:

the second data stream acquisition module is used for acquiring the first direct-broadcast data stream from the source node after the scheduling request is sent to the scheduling node and when a source return notification sent by the scheduling node is received, and then triggering the second data stream return module; the source return notification is sent when the scheduling node judges that a target edge service node storing the first direct-broadcast data stream does not exist in the plurality of edge service nodes on the basis of advance;

Further, the apparatus further comprises:

a third data stream obtaining module, configured to, after sending the scheduling request to the scheduling node, obtain the first direct-broadcast data stream from the source node when receiving a source return notification sent by the scheduling node, and then trigger the third data stream returning module; the source return notification is used for acquiring pre-stored heat category information of each live broadcast data stream for the scheduling node, and determining that the heat category information of the first live broadcast data stream is sent when the heat category information is a heat flow category based on the heat category information of each live broadcast data stream; or the source return notification is that the scheduling node determines that the heat category information of the first direct broadcast data stream is a non-heat flow category based on the heat category information of each direct broadcast data stream, and determines that no target edge service node storing the first direct broadcast data stream is sent from the plurality of edge service nodes based on a pre-obtained storage corresponding relationship between each edge service node and each direct broadcast data stream; the scheduling node determines the popularity category information in advance based on the viewing account number of each live data stream obtained from each edge service node; the heat category information includes: a heat flow class and a non-heat flow class; the live broadcast data stream of the heat flow category is a live broadcast data stream of which the viewing account number is larger than a first preset threshold value;

and the third data stream returning module is used for returning the first direct-broadcasting data stream to the client equipment.

Further, the apparatus further comprises:

a viewing account reporting request sending module, configured to send a viewing account reporting request to the scheduling node, so that the scheduling node determines heat category information of a second live data stream according to a viewing account of the second live data stream included in the viewing account reporting request; and updating the pre-stored hot category information of the second live broadcast data stream based on the hot category information of the second live broadcast data stream.

Further, the apparatus further comprises:

and the data stream reporting request sending module is used for sending a data stream reporting request to the scheduling node when receiving a broadcast notification of a third live data stream sent by the client device, so that the scheduling node updates the pre-obtained storage corresponding relationship between each edge service node and each live data stream according to the data stream reporting request, and the data stream reporting request comprises identification information of the edge service node sending the data stream reporting request, identification information of the third live data stream and storage position information of the third live data stream in the source node.

Further, the apparatus further comprises:

and the fourth data stream returning module is used for returning the first direct-broadcast data stream to the client equipment if the first direct-broadcast data stream exists locally.

In the embodiment shown in fig. 8, when the first direct-broadcast data stream does not exist in the first edge service node, a scheduling request is sent to the scheduling node, so that the scheduling node determines whether a target edge service node storing the first direct-broadcast data stream exists in other edge service nodes, and if so, the first edge service node acquires the first direct-broadcast data stream from the target edge service node.

The embodiment of the present invention further provides a scheduling node, as shown in fig. 9, including a processor 901, a communication interface 902, a memory 903 and a communication bus 904, where the processor 901, the communication interface 902, and the memory 903 complete mutual communication through the communication bus 904,

a memory 903 for storing computer programs;

the processor 901 is configured to implement the following steps when executing the program stored in the memory 903:

judging whether a target edge service node storing a first direct broadcast data stream exists in a plurality of edge service nodes or not based on a pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream;

if the first direct-broadcasting data stream exists, the identification information of the target edge service node is sent to the first edge service node, so that the first edge service node obtains the first direct-broadcasting data stream from the target edge service node according to the identification information and returns the first direct-broadcasting data stream to the client equipment.

Further, other processing flows in the above live data stream acquisition method provided by the embodiment of the present invention may also be included, and are not described in detail here.

The embodiment of the present invention further provides an edge service node, as shown in fig. 10, which includes a processor 1001, a communication interface 1002, a memory 1003 and a communication bus 1004, wherein the processor 1001, the communication interface 1002 and the memory 1003 complete mutual communication through the communication bus 1004,

a memory 1003 for storing a computer program;

the processor 1001 is configured to implement the following steps when executing the program stored in the memory 1003:

judging whether a first direct-broadcasting data stream exists locally;

if not, sending a scheduling request to the scheduling node so that the scheduling node judges whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes or not based on the pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream; if yes, the identification information of the target edge service node is sent to the edge service node; the scheduling request is used for requesting to acquire a first direct-broadcast data stream;

acquiring a first direct-broadcast data stream from a target edge service node according to the identification information of the target edge service node;

the first direct broadcast data stream is returned to the client device.

The communication bus mentioned in the above device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the above-mentioned device and other devices.

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.

The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

In another embodiment of the present invention, a computer-readable storage medium is further provided, where instructions are stored in the computer-readable storage medium, and when the instructions are executed on a computer, the computer is caused to execute the live data stream acquiring method in any one of the above embodiments.

In a further embodiment of the present invention, there is also provided a computer program product containing instructions, which when run on a computer, cause the computer to execute the live data stream acquisition method described in any of the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, device and system embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A live broadcast data stream obtaining method is applied to a scheduling node in a live broadcast Content Delivery Network (CDN) system, and the live broadcast CDN system further comprises the following steps: a source node and a plurality of edge service nodes, the method comprising:

2. The method of claim 1,

before the step of determining whether a target edge service node storing the first direct-broadcast data stream exists in the plurality of edge service nodes based on the pre-obtained storage corresponding relationship between each edge service node and each direct-broadcast data stream, the method further includes:

3. The method of claim 2,

the step of judging whether a target edge service node storing the first direct broadcast data stream exists in the plurality of edge service nodes based on the pre-obtained storage corresponding relation between each edge service node and each direct broadcast data stream includes:

4. The method of claim 3, wherein the non-heat flow categories include: cold flow category and warm flow category; the live data stream of the cold flow category is a live data stream of which the viewing account number is smaller than a second preset threshold value; the live data stream of the warm flow category is a live data stream of which the viewing account number is larger than the second preset threshold value and smaller than the first preset threshold value;

5. The method according to any one of claims 2-4, further comprising:

6. The method according to any one of claims 1-4, further comprising:

7. The method according to any of claims 1-4, wherein the identification information of the target edge service node comprises a network address of the target edge service node.

8. The method of claim 1 or 2, further comprising:

9. A live broadcast data stream obtaining method is applied to an edge service node in a live broadcast Content Delivery Network (CDN) system, and the live broadcast CDN system further comprises the following steps: a source node and a scheduling node, the method comprising:

judging whether the first direct broadcasting data stream exists locally;

10. The method of claim 9,

after the step of sending a scheduling request to the scheduling node, the method further comprises:

11. The method of claim 9,

12. The method of claim 11, further comprising:

13. The method according to any one of claims 9-12, further comprising:

14. The method according to any one of claims 9-12, further comprising:

15. The utility model provides a live broadcast data flow acquisition device which characterized in that, is applied to the scheduling node in live broadcast content delivery network CDN system, live broadcast CDN system still includes: a source node and a plurality of edge service nodes, the apparatus comprising:

16. The utility model provides a live broadcast data flow acquisition device which characterized in that, is applied to the marginal service node in live broadcast content delivery network CDN system, live broadcast CDN system still includes: source node and scheduling node, the apparatus includes:

17. A scheduling node is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any of claims 1 to 8 when executing a program stored in the memory.

18. An edge service node is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing the communication between the processor and the memory through the communication bus;

a memory for storing a computer program;

a processor for implementing the method steps of any of claims 9 to 14 when executing a program stored in the memory.

19. A live content distribution network system, comprising: a source node, a scheduling node according to claim 17 and an edge service node according to claim 18.