CN113194134B

CN113194134B - Node determination method and device

Info

Publication number: CN113194134B
Application number: CN202110458962.1A
Authority: CN
Inventors: 孙袁袁; 陈腾启; 柴黎明; 邵高原; 石威
Original assignee: Shanghai Bilibili Technology Co Ltd
Current assignee: Shanghai Bilibili Technology Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2023-01-10
Anticipated expiration: 2041-04-27
Also published as: CN113194134A

Abstract

The present specification provides a node determination method and a node determination device, wherein the node determination method includes: receiving a node acquisition request, and determining an initial node set based on position information carried in the node acquisition request; determining a target node from the initial node set according to a dimension screening condition; the dimension screening conditions comprise protocol quality conditions, the initial node set is determined through position information carried in the node acquisition request, and the quality of one node is comprehensively judged according to the dimension screening conditions, so that a target node with the best quality is provided for a user, the stream pushing quality problem is reduced, the user can watch live video streams smoothly, and the watching experience of the user is improved.

Description

Node determination method and device

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a node determination method. The present specification also relates to a node determination apparatus, a computing device, and a computer-readable storage medium.

Background

With the development of communication technology, live network video is particularly popular among people due to the characteristics of intuition, rich content and the like. In the existing live broadcast system, usually a main broadcast client uploads a live broadcast video stream to a live broadcast service node (i.e., an edge computing node) for receiving a push stream, and the edge computing node forwards the video stream to a CDN (Content Delivery Network) of each home, however, at present, in the actual push stream process of the main broadcast client, due to poor quality of the selected edge computing node, a phenomenon that some push streams are not smooth occurs, which causes a problem that a user is jammed in viewing or cannot view the video stream, and greatly affects the viewing effect of the user.

Disclosure of Invention

In view of this, the embodiment of the present application provides a node determining method. The present specification also relates to a node determination apparatus, a computing device, and a computer-readable storage medium, which are used to solve the problem in the prior art that a user cannot watch the node due to the quality of the plug flow.

According to a first aspect of embodiments of the present application, a node determination method is provided, including:

receiving a node acquisition request, and determining an initial node set based on position information carried in the node acquisition request;

determining a target node from the initial node set according to a dimension screening condition; wherein the dimension screening condition comprises a protocol quality condition.

According to a second aspect of the embodiments of the present application, there is provided another node determination method, including:

receiving a service address acquisition request sent by a client, and determining a service scheduling address based on a domain name identifier carried in the service address acquisition request, wherein the association relationship between the service scheduling address and the domain name identifier is preset;

and returning the service scheduling address to the client.

According to a third aspect of embodiments of the present application, there is provided a node determination system including:

a client, a node distribution server and a node analysis server,

the client is configured to send a service address acquisition request to the node distribution server;

the node distribution server is configured to determine a service scheduling address based on a domain name identifier carried in the service address acquisition request, wherein the association relationship between the service scheduling address and the domain name identifier is preset, and return the service scheduling address to the client;

the client is further configured to receive a service scheduling address sent by the node distribution server, and to analyze a node acquisition request sent by the server to the node based on the service scheduling address;

the node analysis server is configured to determine an initial node set based on the position information carried in the node acquisition request, determine a target node from the initial node set according to a dimension screening condition, and return the target node to the client.

According to a fourth aspect of embodiments of the present application, there is provided a node determination apparatus, including:

the receiving module is configured to receive a node acquisition request, and determine an initial node set based on position information carried in the node acquisition request;

a determination module configured to determine a target node from the initial node set according to a dimension filtering condition; wherein the dimension screening condition comprises a protocol quality condition, the protocol quality condition and a location information condition, or the protocol quality condition, the location information condition and a network transmission condition.

According to a fifth aspect of embodiments of the present application, there is provided another node determination apparatus, including:

the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is configured to receive a service address acquisition request sent by a client, and determine a service scheduling address based on a domain name identifier carried in the service address acquisition request, and the incidence relation between the service scheduling address and the domain name identifier is preset;

a sending module configured to return the service schedule address to the client.

According to a sixth aspect of embodiments herein, there is provided a computing device comprising:

a memory and a processor;

the memory is configured to store computer-executable instructions, and the processor is configured to execute the computer-executable instructions, wherein the processor implements the steps of the node determination method when executing the computer-executable instructions.

According to a seventh aspect of embodiments herein, there is provided a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, perform the steps of any of the node determination methods.

In the node determining method provided in the present specification, a node acquisition request is received, and an initial node set is determined based on position information carried in the node acquisition request; and determining a target node from the initial node set according to dimension screening conditions, wherein the dimension screening conditions comprise protocol quality conditions.

In an embodiment of the present description, an initial node set is determined by obtaining location information carried in a request by a node, and the quality of a node is comprehensively determined according to a dimension screening condition, so that a target node with the best quality is provided for a user, the problem of stream pushing quality is reduced, the user can watch live video streams smoothly, and the watching experience of the user is improved.

Drawings

FIG. 1 is a logical diagram of a DNS scheduling logic of an edge computing node according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a system to which a node determination method according to an embodiment of the present disclosure is applied;

fig. 3 is a flowchart of a node determination method provided in an embodiment of the present specification;

fig. 4 is a schematic diagram of a processing procedure of performing a push flow and a pull flow based on an edge computing node in a node determination method provided in an embodiment of the present specification;

fig. 5 is a flowchart of another node determination method provided in an embodiment of the present specification;

fig. 6 is a processing flow diagram of node resolution server node determination of a node determination method according to an embodiment of the present specification;

fig. 7 is a schematic structural diagram of a node determination apparatus according to an embodiment of the present specification;

fig. 8 is a schematic structural diagram of another node determination apparatus provided in an embodiment of the present specification;

fig. 9 is a block diagram of a computing device according to an embodiment of the present disclosure.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present description. This description may be implemented in many ways other than those specifically set forth herein, and those skilled in the art will appreciate that the present description is susceptible to similar generalizations without departing from the scope of the description, and thus is not limited to the specific implementations disclosed below.

The terminology used in the description of the one or more embodiments is for the purpose of describing the particular embodiments only and is not intended to be limiting of the description of the one or more embodiments. As used in one or more embodiments of the present specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used in one or more embodiments of the present specification refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, etc. may be used herein in one or more embodiments to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, a first can be termed a second and, similarly, a second can be termed a first without departing from the scope of one or more embodiments of the present description. The word "if" as used herein may be interpreted as "at" \8230; "or" when 8230; \8230; "or" in response to a determination ", depending on the context.

First, the noun terms to which one or more embodiments of the present specification relate are explained.

Live streaming: live audiovisual data transmission that can be transmitted as a steady and continuous stream over a network for viewing by an audience.

Live broadcasting and stream pulling: the live streaming refers to a process of pulling the live streaming from a source station specified by a user through a live streaming cloud platform.

DNS (domain name resolution service): i.e. services that convert domain names to IP. For example, the access is to find out the actual access server IP as 15.1.1.1 through DNS, and then the actual access is; mapping relation 1 of domain name and IP to N; a domain name may have multiple server IPs associated with it.

HTTP DNS: traffic scheduling solutions based on HTTP protocol and domain name resolution tailored for mobile clients.

CDN (content delivery network): bottlenecks and links which possibly influence the data transmission speed and stability on the Internet are avoided, and the content transmission is faster and more stable.

The CDN service provider: a facilitator providing a content distribution network.

An edge computing node: a service node for receiving the push flow.

SRT protocol: UDP based transport protocols.

RTMP protocol: real-time message transfer protocol based on TCP.

TCP (Transmission Control Protocol): a connection-oriented, reliable transport layer communication protocol based on byte streams enables bi-directional data transmission after TCP links are established.

In the existing live broadcast system, generally, a main broadcast pushes a stream to a live broadcast edge computing node, the edge computing node forwards the video stream to each CDN, and the quality of the live broadcast edge computing node receiving the pushed stream directly affects the viewing of a user.

There are two ways for a user to select an edge computing node to perform plug flow: DNS scheduling and HTTP DNS scheduling, embodiments of the present application are only described in detail for the case of HTTP DNS scheduling.

In the deployment of the existing push flow node (i.e. edge computing node), generally deployed on a physical machine or container, after the deployment is completed, the operation and maintenance manually registers the IP in the DNS and in the HTTP DNS schedulable list of the service party. And subsequently, whether the node is abnormal is judged through node detection, if the node is abnormal, the node is removed from the DNS and the HTTP DNS, wherein the node detection can be understood as judging whether the flow pushing node can normally provide flow pushing service.

In the existing live broadcast stream pushing system, the scheduling quality of nodes (namely edge computing nodes) is not considered: when a user requests to schedule a node, only whether any node covers the position can be seen, but from the point of view of node quality, a better node is provided for the user, so that the problems of jam and watching caused by the push flow are reduced. The node quality is not differentiated from the point of view of the push stream protocol: at different nodes, due to differences in machine configuration and performance, the quality of the protocol capable of receiving the stream pushing is different, and after the stream pushing protocol of the user is determined, a quality node with better protocol coverage is given to the protocol. The quality of the stream is not distinguished from the protocol of the stream, the video stream is pushed to the edge computing node, the edge computing node needs to push the video stream to each CDN, and if the quality of the pushed stream is poor due to the limitation of the bandwidth of an outlet and the like, the watching of a user is influenced finally. Therefore, theoretically, the quality of the egress bandwidth should also be considered in the node quality, and in the process of video stream push-out, the quality needs to be pushed out according to the protocol statistics. The coverage quality of the nodes in different provinces is not considered: the same node can cover the provinces nearby, and if the anchor stream is in the covered provinces, the nodes can be used. But the nodes are in different provinces, and coverage quality can be different due to network problems. For example, the two nodes A and B can cover Guangdong provinces and Guangxi provinces, the Guangdong province of the node A has better coverage quality, and the Guangxi province of the node B has better coverage quality, so that the user should select the node A theoretically instead of randomly selecting the node AB in the process of pushing flow in the Guangdong province.

The method comprises the steps of comprehensively judging the quality of a node from multiple dimensions, and adjusting HTTP DNS coverage in real time, so that a node with the best quality is provided for a user, the problem of flow pushing quality is solved, and the problems that the user watches unsmooth and cannot watch due to the flow pushing quality are solved.

In the present specification, a node determination method is provided, and the present specification relates to a node determination apparatus, a computing device, and a computer-readable storage medium, which are described in detail one by one in the following embodiments.

Referring to fig. 1, fig. 1 illustrates a DNS scheduling logic diagram of an edge computing node according to an embodiment of the present application.

It should be noted that the DNS schedule may be directly assigned to a user as a push flow domain name, and the details are described by taking an assigned domain name www.

As shown in fig. 1, fig. 1 includes a main broadcasting (i.e. a user), a central service (i.e. a service of a live platform, which is mainly responsible for allocating a push flow domain name to the user), a DNS (i.e. a domain name resolution service), and an edge computing node, specifically:

the center service reads the available edge computing node IP and registers the IP in the DNS resolution server, namely, the edge computing node IP:8.8.8.8 was added to www.

In practical application, an anchor broadcast requests a stream pushing domain name to a central service, the central service distributes the stream pushing domain name of www.

Fig. 2 is a schematic structural diagram of a system applied to a node determination method according to an embodiment of the present specification.

Fig. 2 includes the anchor (client), the central server, the HTTP DSN scheduling server, and the edge compute nodes.

It should be noted that the HTTP DNS scheduling is actually a 302 scheduling logic, and the logic thereof is to allocate a scheduling address to the client instead of a direct domain name address (which may also be referred to as a stream pushing address or a stream pushing domain name in this embodiment), and the user initiates an HTTP request (network request) twice to request a real IP stream pushing address from the scheduling address.

The node determination system provided in the embodiment of the present application is implemented based on an HTTP DNS scheduling system, and specifically includes: a client, a node distribution server and a node analysis server,

The node distribution server can be understood as a central server, and the node analysis server can be understood as an HTTP DNS scheduling server.

The service address acquisition request may be understood as a push flow address acquisition request sent by an anchor to a central service end, and the service scheduling address may be understood as a 302 scheduling address allocated by the central service.

The node acquisition request can be understood as an acquisition request of an edge computing node.

Specifically, a client sends a service address acquisition request to a node allocation server, the node allocation server determines a service scheduling address according to a domain name identifier carried in the service address acquisition request and returns the service scheduling address to the client, the client further sends a node acquisition request to a node resolution server according to the service scheduling address, the node resolution server determines an initial node set based on position information carried in the node acquisition request, comprehensively determines a target node from the initial node set according to dimension screening conditions, and returns the target node to the client.

In practical application, the anchor in fig. 2 sends a stream pushing address request to the central service, the central service determines a 302 scheduling address based on a domain name identifier carried in the stream pushing address request, and returns the 302 scheduling address to the anchor, it should be noted that an association relationship between the domain name identifier carried in the stream pushing address request and the 302 scheduling address is set by pre-registration, in the embodiment of the present application, the registration part is not limited at all, for example, the domain name identifier is www. Times.com, and the 302 scheduling address corresponding to the domain name identifier is http://2.2.2.2/ddomain; after receiving 302 the scheduling address, the anchor sends an HTTP request to the HTTP DSN scheduling server again, the HTTP DSN scheduling server reads the available edge computing nodes in real time, the HTTP DSN scheduling server determines a target node from the multiple available edge computing nodes according to the dimension screening condition, and provides the target node to the anchor push stream, and the anchor can start to formally push the stream according to the target node after receiving the target node.

The node determination system provided by the embodiment of the application sends the webpage request to the HTTP DSN scheduling server, and then comprehensively determines a target node with the best quality according to the dimension screening condition so as to reduce the problem of the streaming quality, and further solve the problem that a user watches live video due to the streaming quality, and is stuck or cannot watch live video.

Fig. 3 is a flowchart illustrating a node determination method according to an embodiment of the present specification, which specifically includes the following steps:

step 302: receiving a node acquisition request, and determining an initial node set based on position information carried in the node acquisition request.

The node acquisition request may be understood as an edge computing node acquisition request for pushing a direct broadcast stream, and the location information may be understood as location information of a main broadcast.

Specifically, after receiving a node acquisition request sent by a host, a node resolution server determines an initial node set based on location information carried in the node acquisition request, where it should be noted that the initial node set may be understood as a set of available edge computing nodes acquired by the node resolution server in real time.

In practical application, the node parsing server may be an HTTP DSN scheduling server, and when the HTTP DSN scheduling server receives an HTTP request sent by a host and requests a real push stream address, the HTTP DSN scheduling server reads an available edge computing node in real time based on location information of the host carried in the HTTP request, and determines the available edge computing node as an initial node set.

Step 304: determining a target node from the initial node set according to a dimension screening condition; wherein the dimension screening condition comprises a protocol quality condition.

The dimension filtering condition may be understood as a condition for filtering the initial node set, and the initial node set may be filtered from one dimension, for example, the dimension filtering condition includes a protocol quality condition.

Further, the dimension screening condition also comprises a position information condition and/or a network transmission condition,

correspondingly, the determining a target node from the initial node set according to the dimension screening condition includes:

and determining a target node from the initial node set according to the position information condition and/or the network transmission condition.

Specifically, the dimension screening condition may be a protocol quality condition, a location information condition, a protocol quality condition, and a network transmission condition, or a protocol quality condition, a location information condition, and a network transmission condition.

It should be noted that the dimension screening condition may be used to screen the initial node set from one dimension, or may be used to screen the initial node set from two dimensions or three dimensions, and the dimension screening condition may set different dimension screening conditions according to different actual application conditions, so as to screen a target node with the best quality, so as to improve the plug flow quality, and avoid the problem that a user is watching a blocked state or cannot watch the target node due to the plug flow quality.

Furthermore, in order to be embodied in the case of different dimension screening conditions, the method specifically includes the following steps of determining a target node from the initial node set; specifically, the determining a target node from the initial node set according to the dimension screening condition includes:

determining push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, and determining a first candidate node set based on the push-out coverage quality;

determining push-out coverage quality of each initial node from the initial node set according to the position information condition, and determining a second candidate node set based on the push-out coverage quality;

determining a third candidate node set from the initial node set according to the network transmission condition;

and determining the target node according to the first candidate node set, the second candidate node set and the third candidate node set.

Specifically, the node resolution server may determine push-out coverage quality of each initial node from the initial node set according to a protocol quality condition, and determine a first candidate node set based on the push-out coverage quality; the node analysis server side can determine the push-in push-out coverage quality of each initial node from the initial node set according to the position information condition, and determines a second candidate node set based on the push-in push-out coverage quality; the node analysis server may determine a third candidate node set from the initial node set according to the network transmission condition, where it is to be noted that, in the embodiment of the present specification, no limitation is made on determining the order of the first candidate node set, the second candidate node set, and the third candidate node set; finally, a target node can be determined from the first candidate node set, the second candidate node set and the third candidate node set.

In practical applications, different candidate node sets are determined according to different screening conditions, the same candidate node may exist in different candidate node sets, different candidate nodes may exist, or an empty candidate node set may exist, then the target node may be determined from the first candidate node set, the first candidate node set and the second candidate node set, the first candidate node set and the third candidate node set, the second candidate node set, the third candidate node set, or the first candidate node set, the second candidate node set, and the third candidate node set.

For convenience of understanding, the node determination method provided in the embodiment of the present specification is described in detail based on a manner of obtaining a target node after performing intersection processing on a first candidate node set, a second candidate node set, and a third candidate node set.

In the node determining method provided in the embodiment of the present specification, different candidate node sets are determined according to different screening conditions in an initial node set, and then a target node is determined, so that not only is the problem of the push stream quality reduced, but also the problem that a user is stuttered in watching a live video or cannot watch the live video due to the push stream quality is solved.

According to the node determination method provided by the embodiment of the application, the target node can be determined from the initial node set according to the protocol quality condition; specifically, the determining a target node from the initial node set according to the dimension screening condition includes:

and determining the push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, and determining a target node based on the push-out coverage quality.

The protocol quality condition may be understood as an RTMP protocol condition or an SRT protocol condition. It should be noted that the protocol quality condition proposed in the embodiment of the present application may be any protocol condition capable of implementing the push flow, and is not limited herein.

The push-push coverage quality can be understood as a difference between coverage qualities of a live stream determined according to the push coverage and the push coverage quality to determine whether the node has stable coverage quality.

Specifically, the node resolution server may determine push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, and determine the target node based on the push-out coverage quality.

In practical application, one live stream is pushed to the edge computing node, different protocols can be used, and the edge computing node can push the live stream to each CDN or use different protocols, namely different protocols can be selected for push-in and push-out; after determining the push-out coverage quality for each initial node from the set of initial nodes according to the protocol quality condition, the target node may be determined based on the push-out coverage quality for each initial node.

According to the node determining method provided by the embodiment of the application, a target node is determined in an available edge computing node set through a protocol quality condition, the target node is returned to the anchor, the anchor can carry out live video streaming according to the target node so as to improve the quality of the streaming, and the problem that a user is blocked or cannot watch the video due to the quality of the streaming is solved.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a processing procedure of performing push flow and pull flow based on an edge computing node in the node determination method provided in an embodiment of the present application.

As shown in fig. 4, after determining an edge computing node a, the anchor sends a live stream to the edge computing node to push the stream, and the edge computing node pushes the live stream to the CDN service node, so that the viewing user can pull the stream from the CDN service node to view the live stream; it should be noted that whether each edge computing node is stable or not may be described by pushing in coverage quality and pushing out coverage quality, and if the push-in coverage quality is problematic, the push-out coverage quality is definitely poor, and the quality of a live stream watched by a user from a CDN by streaming is also relatively poor; if the coverage quality is released to cause a problem, the quality of the live streaming watched by the user from the CDN is relatively poor; if the difference between the pushing-in coverage quality and the pushing-out coverage quality is large, the node is indicated to have an unstable condition, or an abnormal condition exists to cause the difference between pushing-in links and pushing-out links.

Further, the push-in push-out coverage quality may be determined according to the push-in coverage quality and the push-out coverage quality; specifically, the determining the push-out coverage quality of each initial node from the initial node set according to the protocol quality condition includes:

determining connection push coverage quality of each initial node from the initial node set according to a connection transmission protocol;

under the condition that the connection push-in coverage quality meets a preset quality threshold, determining connectionless push-in coverage quality of each initial node from the initial node set according to a connectionless transmission protocol;

determining a push-out coverage quality for each initial node based on the connectionless push-out coverage quality.

The connection transport protocol may be understood as an RTMP protocol, i.e. a TCP-based real-time messaging protocol.

Here, the connection push coverage quality may be understood as the push coverage quality of a node in a certain time period based on the RTMP protocol statistics.

Therein, connectionless transport protocol may be understood as SRT protocol, i.e. UDP-based transport protocol.

Here, the connectionless push coverage quality may be understood as the push coverage quality of a node in a certain time period based on the statistics of the SRT protocol.

Specifically, the node resolution server may determine the connection push-in coverage quality of each initial node from the initial node set according to the connection transport protocol, and may determine the connectionless push-in coverage quality of each initial node from the initial node set according to the connectionless transport protocol under the condition that it is determined that the connection push-in coverage quality satisfies the preset quality threshold, and determine the push-in coverage quality of each initial node based on the connectionless push-in coverage quality.

In practical application, with a certain time as a period, calculating connection push-in coverage quality of each initial node from an initial node set according to an RTMP protocol, if the connection push-in coverage quality of the initial node is determined to be X1 and a preset quality threshold value is Q, and if X1< a preset threshold value (preset quality threshold value Q), indicating that the initial node has a problem in pushing RTMP (connection push-in coverage quality), not scheduling; if it is determined that X1 is greater than or equal to Q, it indicates that there is no problem in connection push coverage quality of the initial node, and may schedule the initial node, and further, if it is determined that the connection push coverage quality of the initial node meets a preset quality threshold, it may determine, according to an SRT protocol, connectionless push coverage quality of the initial node from an initial node set, and if it is determined that connectionless push coverage quality of the initial node is Y1, the preset quality threshold is Q, and if Y1< a predetermined threshold (preset quality threshold Q), it indicates that there is a problem in connection push SRT (connectionless push coverage quality) of the node, then scheduling is not performed; if Y1 is determined to be equal to or greater than Q, it is determined that there is no problem with the connectionless push-in coverage quality of the initial node, and the initial node can be scheduled, and the push-in coverage quality of each initial node can be determined based on the connectionless push-in coverage quality.

The node determination method provided by the embodiment of the application determines the connection push-in coverage quality of each initial node through a connection transport protocol, determines the connectionless push-in coverage quality of each initial node, and further determines the push-in push-out coverage quality of each initial node, so that whether the initial node is stable or not can be determined according to the push-in push-out coverage quality of each node subsequently, and the push stream quality of a live stream is improved.

Furthermore, after determining the connectionless push-out coverage quality of each initial node, determining the connection push-out coverage quality and connectionless push-out coverage quality of each initial node to realize the calculation of the push-out coverage quality of each initial node; specifically, the determining the push-out coverage quality of each initial node based on the connectionless push-out coverage quality includes:

determining connection push-out coverage quality of each initial node from the initial node set according to a connection transport protocol under the condition that the connection push-out coverage quality is determined to meet the preset quality threshold;

determining connectionless inferred coverage quality of each initial node from the set of initial nodes according to a connectionless transport protocol under the condition that the connection inferred coverage quality is determined to meet the preset quality threshold;

Here, the connection deduced coverage quality may be understood as the deduced coverage quality of a node in a certain time period based on the RTMP protocol statistics.

Here, the connectionless deduced coverage quality may be understood as the deduced coverage quality of a node in a certain time period based on SRT protocol statistics.

Specifically, the node resolution server may determine the connection push-out coverage quality of each initial node from the initial node set according to the connection transport protocol under the condition that it is determined that the connectionless push-in coverage quality satisfies the preset quality threshold, and may determine the connectionless push-out coverage quality of each initial node from the initial node set according to the connectionless transport protocol under the condition that it is determined that the connection push-out coverage quality satisfies the preset quality threshold, and may determine the push-out coverage quality of each initial node based on the connectionless push-out coverage quality.

In practical application, with a certain time as a period, calculating connection push-out coverage quality of each initial node from an initial node set according to an RTMP protocol, if the connection push-in coverage quality of the initial node is determined to be X2, a preset quality threshold value is Q, and if X2< a preset threshold value (preset quality threshold value Q), indicating that the initial node has a problem in pushing RTMP (connection push-out coverage quality), scheduling is not performed; if the situation that X2 is larger than or equal to Q is determined, it is indicated that the connection push-out coverage quality of the initial node has no problem, the initial node can be scheduled, further, under the situation that the connection push-out coverage quality of the initial node meets a preset quality threshold, the connectionless push-out coverage quality of the initial node can be determined from an initial node set according to an SRT protocol, if the connectionless push-out coverage quality of the initial node is determined to be Y2, the preset quality threshold is Q, and if Y2< a preset threshold (preset quality threshold Q), it is indicated that the connection push-in SRT (connectionless push-out coverage quality) of the node has a problem, the scheduling is not performed; if it is determined that Y2 is equal to or greater than Q, it means that there is no problem with the connectionless push-out coverage quality of the initial node, and the initial node can be scheduled, and the push-out coverage quality of each initial node can be determined based on the connectionless push-out coverage quality.

The node determination method provided by the embodiment of the application determines the connection push-out coverage quality of each initial node through a connection transport protocol, determines the connectionless push-out coverage quality of each initial node, and further determines the push-out coverage quality of each initial node, so that whether the initial node is stable or not can be determined according to the push-out coverage quality of each node in the follow-up process, and the push stream quality of a live stream is improved.

Further, in the case where the connection push-in quality and the connection push-out quality are determined, the connection push-out quality of each initial node may be determined, and in the case where the connectionless push-in quality and the connectionless push-out quality are determined, the connectionless push-out quality of each initial node may be determined; specifically, the determining the push-out coverage quality of each initial node based on the connectionless push-out coverage quality includes:

determining a connection push-out quality of each initial node from the set of initial nodes according to the connection push-in coverage quality and the connection push-out coverage quality under the condition that the connectionless push-out coverage quality meets the preset quality threshold;

determining connectionless push-in push-out quality of each initial node from the initial node set according to the connectionless push-in coverage quality and the connectionless push-out coverage quality under the condition that the connection push-in push-out quality meets a preset quality threshold;

determining the connectionless push-out quality for each initial node as the push-out coverage quality for each initial node.

Here, the connection push-out quality may be understood as a ratio of push-in to push-out coverage quality of a node in a certain time period based on the RTMP protocol statistics.

Here, the push-out coverage quality without connection may be understood as a ratio of push-in to push-out coverage quality of a node in a certain time period based on SRT protocol statistics.

Specifically, the node analysis server may determine the connection push-in push-out quality of each initial node from the initial node set according to the connection push-in coverage quality and the connection push-out coverage quality when it is determined that the connectionless push-out coverage quality satisfies the preset quality threshold, and determine the connectionless push-in push-out quality of each initial node from the initial node set according to the connectionless push-in coverage quality and the connectionless push-out coverage quality when the connection push-in push-out quality of the initial node satisfies the preset quality threshold, and determine the connectionless push-in push-out quality of each initial node as the push-in push-out coverage quality of each initial node.

In practical application, with a certain time as a period, under the condition that the connectionless pushed coverage quality meets a preset quality threshold, the node analysis server can determine the connection pushed coverage quality based on the ratio of the pushed coverage quality to the pushed coverage quality of an initial node of the RTMP protocol, the above example is used, and if | X2-X1|/X1> is greater than a preset threshold (preset quality threshold Q), it is indicated that the RTMP pushed coverage quality is too poor, and the initial node is not scheduled; if | X2-X1|/X1< a predetermined threshold (a preset quality threshold Q), indicating that the RTMP push-in push-out quality is not large, and then the initial node can carry out scheduling; under the condition that the connection push-in push-out quality meets a preset quality threshold, determining the connection-free push-out quality based on the ratio of the push-in coverage quality and the push-out coverage quality of an initial node of the SRT protocol, and if the absolute value Y2-Y1/Y1 is greater than a preset threshold, indicating that the SRT push-in push-out quality is too large, not scheduling the initial node; if Y2-Y1/Y1 < the preset threshold value, the SRT push-out quality difference is too large, the initial node can carry out scheduling, and the connectionless push-out quality is determined as the push-out coverage quality of the initial node.

The node determination method provided by the embodiment of the application determines the connection push-out quality of each initial node through the connection transport protocol, determines the connectionless push-out quality of each initial node, and further determines the push-out coverage quality of each initial node, so that whether the initial node is stable or not can be determined according to the push-out coverage quality of each node in the follow-up process, and the push stream quality of the live stream is improved.

In practical applications, the calculation methods of the connection push-in coverage quality and the connection push-out coverage quality include:

determining the jitter rate and disconnection rate of each initial node from the initial node set according to a connection transmission protocol;

determining a connection push-in coverage quality and a connection push-out coverage quality for each of the initial nodes based on the jitter rate and the outage rate.

The jitter rate may be understood as a probability that a network of the edge computing node slightly jitters, and the disconnection rate may be understood as a probability that a network of the node analysis server terminal severely jitters or a server is directly restarted, resulting in disconnection of a live stream.

Specifically, a jitter rate and a disconnection rate of each initial node are determined from the initial node set according to a connection transport protocol, and connection push-in coverage quality and connection push-out coverage quality of each initial node are determined based on the jitter rate and the disconnection rate of the initial node.

In practical application, a live stream is pushed to an edge computing node by an anchor, if the anchor network is normal, the push stream connection of the anchor should be kept stable all the time, and if the network of the edge computing node slightly shakes, the live stream on the analysis service end of the node may shake.

The anchor stream is pushed to the edge compute node, and if the anchor network is normal, the anchor stream connection should remain connected all the time. If the network of the edge computing node is severely jittered or the server is directly restarted, the live broadcast stream can be disconnected; that is, the degree of network jitter determines the number of the live broadcast streams, and if the edge computing node is restarted, all the live broadcast streams are influenced; furthermore, the node determination method provided by the embodiment of the application can reversely deduce the quality of the edge computing node by judging how many live streams of the edge computing node are disconnected in a time period.

Based on this, after determining the jitter rate and the disconnection rate of the initial node according to the method, the coverage quality = 1-jitter rate-disconnection rate, and the higher the score of the coverage quality, the better the quality, which indicates that the jitter and disconnection frequencies are less; and determining the connection push-in coverage quality and the connection push-out coverage quality of each initial node according to the jitter rate and the disconnection rate of the initial node.

According to the node determining method provided by the embodiment of the application, the connection push-in coverage quality and the connection push-out coverage quality of the initial node can be calculated through the jitter rate and the disconnection rate of the edge calculation node within a certain time period, so that whether the initial node is stable or not can be judged subsequently according to the push-in push-out coverage quality of each node, and the push stream quality of a live stream is improved.

Further, determining a jitter rate and a disconnection rate of each initial node from the initial node set according to a connection transport protocol includes:

acquiring the data jitter number, the data processing number and the data disconnection number of each initial node in a preset time period from the initial node set according to a connection transmission protocol;

and determining the jitter rate of each initial node according to the data jitter number and the data processing number, and determining the disconnection rate of each initial node according to the data disconnection number and the data processing number.

The data jitter number can be understood as the number of the number points jittered in a certain period; the data processing quantity can be understood as the total receiving flow quantity on the edge computing node in a certain period; the data disconnection number can be understood as the number of how many live streams of one edge computing node are disconnected in a certain period.

In practical applications, the logic for judging jitter: under the condition that the network is stable, the number of network packets transmitted by the edge computing node for receiving user plug flow is fixed, when the network quality is poor, part of the transmission packets can be stored at a user side, and when the edge computing node network is normal and a large number of receiving requests can be received, the data transmission packets can be received instantly, so that the number of the network packets transmitted by the receiving user is subjected to up-and-down jitter; take a live stream, a time period of 5 minutes as an example: the number of the points for receiving the transmission packets of the stream pushing network is calculated once in 10s, 30 points exist in 5 minutes, the average receiving network packet number of the 30 points is calculated, and then the number of the points exceeding 30% of the average value is judged, and the exceeding is the jitter. If the number of jitter points is greater than the total number of points 30%, the live stream jitters in the time period, that is, the algorithm for the edge computing node jitters is as follows: jitter rate = number of streams jittered/total number of received streams on the edge compute node.

In the above example, if the time period is 5 minutes, for example, 5 live streams of an edge computing node are disconnected, and the total received live streams at the edge computing node are 30 live streams, the algorithm of the edge computing node disconnection rate is: active disconnect ratio = number of disconnected streams/total number of received streams on the edge compute node, i.e., disconnect ratio =5/30.

The connectionless push-in coverage quality and the connectionless push-out coverage quality may be calculated as follows, including:

determining the jitter rate and disconnection rate of each initial node from the initial node set according to a connectionless transmission protocol;

determining a connectionless push-in coverage quality and a connectionless push-out coverage quality for each of the initial nodes based on the jitter rate and the outage rate.

Specifically, a jitter rate and a disconnection rate of each initial node are determined from the initial node set according to the connectionless transport protocol, and connectionless push-in coverage quality and connectionless push-out coverage quality of each initial node are determined based on the jitter rate and the disconnection rate of the initial node.

It should be noted that determining the connectionless push-in coverage quality and connectionless push-out coverage quality of the initial node is the same as determining the connection push-in coverage quality and connection push-out coverage quality of the initial node, and this embodiment is not described in detail herein.

According to the node determining method provided by the embodiment of the application, the connectionless push-in coverage quality and the connectionless push-out coverage quality of the initial node can be calculated through the jitter rate and the disconnection rate of the edge calculation node within a certain time period, so that whether the initial node is stable or not can be judged subsequently according to the push-in push-out coverage quality of each node, and the push stream quality of a live stream is improved.

Further, determining a jitter rate and a disconnection rate of each initial node from the set of initial nodes according to a connectionless transport protocol, comprising:

acquiring the data jitter number, the data processing number and the data disconnection number of each initial node in a preset time period from the initial node set according to a connectionless transmission protocol;

determining the jitter rate of each initial node according to the data jitter number and the data processing number, and determining the disconnection rate of each initial node according to the data disconnection number and the data processing number.

It should be noted that, the determining manner of the jitter rate and the disconnection rate of each initial node in the connectionless transport protocol provided in this embodiment is the same as the determining manner in the foregoing embodiment, and details are not repeated in this embodiment, which may be referred to in the foregoing embodiment.

According to the node determining method provided by the embodiment of the application, the connectionless push-in coverage quality and the connectionless push-out coverage quality of the initial node can be calculated by the jitter rate and the disconnection rate of the edge calculation node within a certain time period, so that whether the initial node is stable or not can be judged subsequently according to the push-in coverage quality of each node, and the push stream quality of a live stream can be improved.

After the push-in push-out coverage quality is determined, the target node can be screened out from the initial node set; specifically, the determining a target node based on the push-out coverage quality includes:

and screening out a target node from the initial node set under the condition that the push-in push-out coverage quality meets a preset quality threshold.

Specifically, after determining the push-in push-out coverage quality of each initial node, the node analysis server screens out a target node from the initial node set under the condition that the push-in push-out coverage quality of the initial node meets a preset quality threshold.

In practical application, after the push-in push-out coverage quality of each initial node is determined through the calculation method provided by the embodiment, whether the push-in push-out coverage quality of the initial node meets a preset quality threshold needs to be judged, and under the condition that the preset quality threshold is met, a target node is screened from the initial node set.

It should be noted that the preset quality thresholds provided in the above embodiments are all the same, and the preset quality thresholds are different according to different application scenario requirements, which is not limited in this embodiment of the application.

According to the node determining method provided by the embodiment of the application, a target node is determined in an available edge computing node set through a protocol quality condition, the target node is returned to the anchor, the anchor can carry out live broadcast video push streaming according to the target node so as to improve the push streaming quality, and the problem that a user is blocked or cannot watch due to the push streaming quality is solved.

According to another embodiment provided by the application, the target node can be determined according to the protocol quality condition and the position information condition; specifically, the determining the push-out coverage quality of each initial node from the initial node set according to the position information condition includes:

determining a jitter rate and a disconnection rate of each initial node in the position information from an initial node set according to the position information condition;

determining a push-out coverage quality of the each initial node at the location information based on the jitter rate and the outage rate.

The position information condition can be understood as that the quality of coverage of the same area by different nodes is different, and the best quality of the coverage area is preferentially selected.

The position coverage quality can be understood as the coverage quality of an area which can be covered by the edge computing node.

Specifically, the node resolution server may determine, from the initial node set, each initial node according to the location information, a jitter rate and a disconnection rate at the location information, and determine, based on the jitter rate and the disconnection rate, a push-out coverage quality of each initial node at the location information.

According to the node determining method, the position coverage quality of each initial node is determined in the initial node set through the position information condition, and then the target node is determined, so that the node with the better stability and the best quality is screened out, the problem of push stream quality is guaranteed through the screened out node, and the problem that a user watches live stream in a stuck state or cannot watch live stream is solved.

Further, in another embodiment, a node determining method is provided, which may determine a target node according to a protocol quality condition and a location information condition; specifically, the determining a target node from the initial node set according to the dimension screening condition includes:

determining push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, and determining a candidate node set based on the push-out coverage quality;

and determining the position coverage quality of each candidate node from the candidate node set according to the position information condition, and determining a target node based on the position coverage quality.

Specifically, the node analysis server determines push-in push-out coverage quality of each initial node from an initial node set according to a protocol quality condition, determines a candidate node set based on the push-in push-out coverage quality, determines position coverage quality of each candidate node from the candidate node set according to a position information condition, and determines a target node based on the position coverage quality.

It should be noted that, in this embodiment, for a specific process in which the node resolution server determines the push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, reference may be made to the specific description process in the above embodiment, and details of this embodiment are not described again.

In practical application, one edge computing node may cover a nearby province, and after a user pushes a flow in one province and is screened from an initial node set according to a protocol quality condition, a plurality of edge computing nodes may still be available, and then the node with the best quality is continuously screened from the selectable edge computing nodes. For example, if an edge computing node is shanghai IP a, this node may also cover shanghai city, zhejiang province, and jiangsu province; one edge computing node is Jiangsu IP B, and the node can also cover Jiangsu province, zhejiang province and Shanghai city; if the anchor pushes streaming in the Shanghai, the node A and the node B can be selected, the province coverage quality is that the quality of different nodes covering the same province is different, and the best quality of the coverage province is preferably selected in the embodiment of the application; for example, node a has better quality than B in coverage of shanghai, but worse quality than B in coverage of Jiangsu, and if anchor is in shanghai, node a is preferably selected, and if anchor is in Jiangsu, node B is preferably selected for scheduling.

The logic judgment of the position coverage quality is that the anchor is played, the central server side obtains the province (assumed as Shanghai) where the anchor is located, the central server side screens out nodes capable of covering Shanghai cities, then data statistics is carried out, the quality of the area where each node covers the Shanghai area is respectively counted (according to the province statistical data, if the data of other provinces are covered, the data are not included in the statistical data), then position coverage quality calculation is carried out, all the node coverage qualities are sequenced, the node list with the best quality is selected, and scheduling alternatives are given.

According to the node determining method provided by the embodiment of the application, the position coverage quality of each candidate node is determined through two dimensions of a protocol quality condition and a position information condition, and then a target node is determined, so that the node with better stability and quality can be screened out, the problem of push stream quality can be guaranteed through the screened node, and the problem that a user watches live stream in a stuck state or cannot watch live stream is solved.

Further, the determining the location coverage quality of each candidate node from the candidate node set according to the location information condition includes:

determining a jitter rate and a disconnection rate of each candidate node in the position information from the candidate nodes according to the position information;

determining a location coverage quality of the each candidate node at the location information based on the jitter rate and the outage rate.

Specifically, the jitter rate and the disconnection rate of each candidate node are determined from the candidate node set according to the position information of the anchor, and the position coverage quality of each candidate node in the position information of the anchor is determined based on the jitter rate and the disconnection rate of the candidate node.

It should be noted that the position coverage quality of this embodiment is the same as the determination method of the push-in and push-out coverage quality in the above embodiment, and redundant description is not repeated in this embodiment.

According to the node determination method provided by the embodiment of the application, the position coverage rate of the candidate node is calculated through the jitter rate and the disconnection rate of the candidate node, so that a target node with better quality is conveniently screened out from the candidate node subsequently, the problem of stream pushing quality is guaranteed, and the problem that a user watches live streams in a stuck state or cannot watch live streams is solved.

Further, the determining each candidate node from the candidate nodes according to the location information includes, at the jitter rate and the outage rate of the location information:

acquiring the number of data jitters, the number of data processes and the number of data disconnections when the candidate nodes corresponding to the position information are processed in a preset time period;

determining the jitter rate of each candidate node according to the data jitter number and the data processing number, and determining the disconnection rate of the candidate node according to the data disconnection number and the data processing number.

It should be noted that, a calculation manner of the jitter rate and the disconnection rate of the location information of each candidate node determined according to the location information provided in this embodiment is the same as the determination manner of the jitter rate and the disconnection rate of each initial node according to the connectionless transport protocol in the foregoing embodiment, and this embodiment is not described in detail again.

According to the node determining method provided by the embodiment of the application, the position coverage quality of the candidate node can be calculated through the jitter rate and the disconnection rate of the edge calculation node in a certain time period, so that a target node with better quality can be screened out from the candidate node subsequently, the problem of push stream quality is ensured, and the problem that a user watches live broadcast stream in a stuck state or cannot watch live broadcast stream is solved.

In another embodiment provided by the present application, a target node may be determined according to a protocol quality condition, a location information condition, and a network transmission condition; specifically, the determining a target node from the initial node set according to the dimension screening condition includes:

determining the position coverage quality of each candidate node from the candidate node set according to the position information condition, and determining an alternative node set based on the position coverage quality;

and determining a target node from the candidate node set according to the network transmission condition.

The network transmission condition may be a bandwidth control condition, which is not limited in this embodiment.

Specifically, after determining the push-in push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, the node analysis server determines a candidate node set based on the push-in push-out coverage quality, determines the location coverage quality of each candidate node from the candidate node set according to the location information condition, determines a candidate node set based on the location coverage quality, and determines a target node from the candidate node set according to the network transmission condition.

It should be noted that the protocol quality condition and the location information condition provided in this embodiment are the same as the candidate node set determined according to the protocol quality condition in the foregoing embodiment, and the method for determining the candidate node set according to the location information condition is the same, and this embodiment is not described in detail again.

In practical application, after finishing the candidate node set screened based on the position coverage quality, screening an edge computing node list, and finally providing only one node for a user, wherein the final screening strategy is bandwidth control; the bandwidth control is that the number of live streams that a node can bear is limited, the bandwidth of an inlet and an outlet is also limited, and when the bandwidth exceeds a preset bandwidth, network congestion is caused, so that the problem of stream pushing quality is caused.

The logic judgment of the network transmission condition is as follows: and acquiring a node list which can be currently scheduled from the candidate node set, reading corresponding bandwidths from corresponding edge node servers in real time, sequencing bandwidth data, and finally selecting a node with the smallest bandwidth to determine the node as a target node.

According to the node determining method provided by the embodiment of the application, the alternative node set is determined according to the protocol quality condition and the position information condition, the target condition is determined according to the network transmission condition from the alternative node set, the quality of one node is comprehensively determined through the three dimensions, and therefore a node with the best quality is provided for a user, the quality of a plug flow is guaranteed, and the problem that the user watches the live broadcast stream in a stuck state or cannot watch the live broadcast stream is solved.

Further, after the position coverage quality of each candidate node is determined, the candidate nodes are subjected to sequencing processing; specifically, the determining the candidate node set based on the location coverage quality includes:

and sorting the candidate nodes based on the position coverage quality of each candidate node, and determining a candidate node set based on a sorting result.

Specifically, the node analysis server ranks the candidate nodes based on the position coverage quality of each candidate node, and determines a candidate node set based on a ranking result.

According to the node determining method provided by the embodiment of the application, the candidate node set is determined according to the position coverage quality from the candidate nodes, and then the target node with higher quality is determined in the candidate node set, so that the push stream quality is ensured, and the problem that a user watches live stream in a pause or cannot watch live stream is solved.

Further, the determining a target node from the candidate node set according to the network transmission condition includes:

acquiring a network transmission value of each alternative node from the alternative node set, and sequencing the network transmission values;

and selecting the candidate node with the minimum network transmission value as a target node based on the sequencing result.

Specifically, the network transmission value may be understood as a bandwidth value of a node, the node analysis server obtains the bandwidth value of each candidate node from the candidate node set, sorts the bandwidth values of each candidate node, and selects a candidate node with the smallest bandwidth value as a target node based on a sorting result.

According to the node determination method provided by the embodiment of the application, the network transmission values of all the nodes are sequenced, the node with the minimum network transmission value is screened out to serve as the target node, and the node with the minimum bandwidth consumption is comprehensively screened out, so that the problem of push stream quality is guaranteed, and the problem that a user watches the live stream in a stuck state or cannot watch the live stream is solved.

After the target node is determined according to the dimension screening condition, the service address corresponding to the target node can be returned to the client; specifically, after determining the target node from the initial node set according to the dimension screening condition, the method further includes:

and determining a service address corresponding to the target node, and sending the service address to a client.

Specifically, after determining a service address corresponding to a target node, the node resolution server sends the service address to the client, and the anchor can acquire the service address through the client and push live streaming to a corresponding edge computing node according to the service address.

According to the node determination method provided by the embodiment of the application, after the service address is returned to the anchor, the anchor can perform live broadcast stream pushing according to the service address, so that an edge computing node with the best quality is provided for the anchor, the quality of the anchor stream pushing is improved, the stream pulling quality of a user is also improved, and the risk that the user watches live broadcast streams in a stuck state or cannot watch the live broadcast streams is reduced.

In conclusion, the method and the device for adjusting the HTTP DNS coverage comprehensively judge the quality of one node based on the dimension screening condition, and adjust the HTTP DNS coverage in real time, so that a node with the best quality is provided for a user, the problem of stream pushing quality is solved, and the problems that the user watches live stream in a pause manner and cannot watch the live stream due to the stream pushing quality are solved.

Fig. 5 is a flowchart illustrating another node determination method provided in an embodiment of the present specification, which specifically includes the following steps:

step 502: receiving a service address acquisition request sent by a client, and determining a service scheduling address based on a domain name identifier carried in the service address acquisition request, wherein the association relationship between the service scheduling address and the domain name identifier is preset.

The domain name identifier may be understood as an address domain name, such as www.

Specifically, a node allocation server receives a service address acquisition request sent by a host, and determines a service scheduling address according to a domain name identifier carried in the service address acquisition request, where an association relationship between the service scheduling address and the domain name identifier is preset, for example, a central server registers www. //2.2.2.2/dDomain.

Step 504: and returning the service scheduling address to the client.

Specifically, the node distribution server returns the service scheduling address to the client, and in practical application, the central server returns a 302 scheduling address to the anchor, so that the subsequent anchor further sends a webpage request through the 302 scheduling address.

According to the node determination method provided by the embodiment of the application, the 302 scheduling address is returned to the anchor through the central server, so that the web page request sent by the anchor according to the 302 scheduling address is realized, the node analysis server is further triggered to comprehensively determine the edge computing node, the quality of the edge computing node is ensured, and the problems that a user watches live broadcast streams and is blocked and cannot watch the live broadcast streams due to the stream pushing quality are solved.

Referring to fig. 6, fig. 6 is a flowchart illustrating a processing flow of node resolution server node determination of a node determination method according to an embodiment of the present specification, specifically including the following steps:

step 602: the node resolution server determines whether the RTMP push coverage quality of each initial node is greater than a preset quality threshold from the initial node set, if so, step 604 is executed, otherwise, step 622 is executed.

Step 604: the node resolution server determines whether the SRT push-in coverage quality of each initial node is greater than a preset quality threshold from the initial node set, if so, performs step 606, otherwise, performs step 622.

Step 606: the node resolution server determines whether the RTMP-derived coverage quality of each initial node is greater than a preset quality threshold from the initial node set, if so, step 608 is executed, otherwise, step 622 is executed.

Step 608: the node resolution server determines whether the SRT derived coverage quality of each initial node from the set of initial nodes is greater than a preset quality threshold, if so, then step 610 is performed, otherwise, step 622 is performed.

Step 610: the node resolution server determines whether the RTMP push-out coverage quality of each initial node is greater than a preset quality threshold from the initial node set, if not, step 612 is executed, and if so, step 622 is executed.

Step 612: and the node analysis server determines whether the SRT push-out coverage quality of each initial node is greater than a preset quality threshold from the initial node set, determines a candidate node set, if not, executes step 614, and if so, executes step 622.

Step 614: the node analysis server determines whether the candidate node set covers the user province according to the position information condition, if so, step 616 is executed, and if not, step 622 is executed.

Step 616: and the node analysis server side selects the best province covering node and determines an alternative node set.

Step 618: and the node analysis server selects the node with the minimum bandwidth as a target point.

Step 620: under the condition that the node analysis server side determines that the target node is normal, the target node can be scheduled.

According to the node determining method provided by the embodiment of the application, the quality of one node is comprehensively judged through the dimension screening condition, and the HTTP DNS coverage is adjusted in real time, so that the node with the best quality is provided for a user, the problem of stream pushing quality is reduced, and the problems that the user watches live streams, is unsmooth and cannot watch due to the stream pushing quality are reduced.

Corresponding to the above method embodiment, this specification further provides an embodiment of a node determining apparatus, and fig. 7 shows a schematic structural diagram of the node determining apparatus provided in an embodiment of this specification. As shown in fig. 7, the apparatus includes:

a receiving module 702, configured to receive a node acquisition request, and determine an initial node set based on location information carried in the node acquisition request;

a determining module 704 configured to determine a target node from the initial node set according to a dimension filtering condition; wherein the dimension screening condition comprises a protocol quality condition.

Optionally, the determining module 704 is further configured to:

The dimension screening condition further comprises a position information condition and/or a network transmission condition.

Optionally, the determining module 704 is further configured to:

determining connectionless inferred coverage quality of each initial node from the initial node set according to a connectionless transport protocol under the condition that the connection inferred coverage quality is determined to meet the preset quality threshold;

Optionally, the determining module 704 is further configured to:

determining a connection push-in coverage quality of each initial node from the set of initial nodes according to the connection push-in coverage quality and the connection push-out coverage quality under the condition that the connectionless push-out coverage quality meets the preset quality threshold;

determining connectionless push-in push-out quality of each initial node from the initial node set according to the connectionless push-in coverage quality and the connectionless push-out coverage quality when the connection push-in push-out quality meets a preset quality threshold;

Optionally, the determining module 704 is further configured to:

determining each initial node from an initial node set according to the position information, and the jitter rate and the disconnection rate of the position information;

Optionally, the determining module 704 is further configured to:

determining a connection push-in coverage quality and a connection push-out coverage quality for each of the initial nodes based on the jitter rate and the outage rate;

accordingly, the connectionless push-in coverage quality and the connectionless push-out coverage quality are calculated as follows, including:

determining a jitter rate and a disconnection rate of each initial node from the initial node set according to a connectionless transmission protocol;

determining connectionless push-in coverage quality and connectionless push-out coverage quality for each of the initial nodes based on the jitter rate and the outage rate.

Optionally, the apparatus further comprises:

The node determining device provided by the application starts from the dimension screening condition, comprehensively judges the quality of one node, and adjusts HTTP DNS coverage in real time, so that the best quality node is provided for a user, the problem of stream pushing quality is reduced, and the problems that the live stream is blocked and cannot be watched by the user due to the stream pushing quality are reduced.

Corresponding to the above method embodiment, this specification further provides an embodiment of a node determining apparatus, and fig. 8 shows a schematic structural diagram of the node determining apparatus provided in an embodiment of this specification. As shown in fig. 8, the apparatus includes:

a receiving module 802, configured to receive a service address acquisition request sent by a client, and determine a service scheduling address based on a domain name identifier carried in the service address acquisition request, where an association relationship between the service scheduling address and the domain name identifier is preset;

a sending module 804 configured to return the service schedule address to the client.

The node determination device provided by the embodiment of the application returns a 302 scheduling address to the anchor through the central server, so that the anchor can send a webpage request according to the 302 scheduling address, and further triggers the node analysis server to comprehensively determine the edge computing node, so that the quality of the edge computing node is guaranteed, and the problems that a user watches live streaming and is unsmooth and cannot watch the live streaming due to the streaming quality are solved.

The above is an exemplary scheme of a node determination apparatus according to this embodiment. It should be noted that the technical solution of the node determining apparatus and the technical solution of the node determining method belong to the same concept, and details that are not described in detail in the technical solution of the node determining apparatus can be referred to the description of the technical solution of the node determining method.

Fig. 9 illustrates a block diagram of a computing device 900 provided in accordance with an embodiment of the present specification. Components of the computing device 900 include, but are not limited to, a memory 910 and a processor 920. The processor 920 is coupled to the memory 910 via a bus 930, and a database 950 is used to store data.

Computing device 900 also includes access device 940, access device 940 enabling computing device 900 to communicate via one or more networks 960. Examples of such networks include the Public Switched Telephone Network (PSTN), a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or a combination of communication networks such as the internet. Access device 940 may include one or more of any type of network interface (e.g., a Network Interface Card (NIC)) whether wired or wireless, such as an IEEE802.11 Wireless Local Area Network (WLAN) wireless interface, a worldwide interoperability for microwave access (Wi-MAX) interface, an ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a bluetooth interface, a Near Field Communication (NFC) interface, and so forth.

In one embodiment of the present description, the above-described components of computing device 900, as well as other components not shown in FIG. 9, may also be connected to each other, such as by a bus. It should be understood that the block diagram of the computing device architecture shown in FIG. 9 is for purposes of example only and is not limiting as to the scope of the description. Other components may be added or replaced as desired by those skilled in the art.

Computing device 900 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., tablet, personal digital assistant, laptop, notebook, netbook, etc.), a mobile phone (e.g., smartphone), a wearable computing device (e.g., smartwatch, smartglasses, etc.), or other type of mobile device, or a stationary computing device such as a desktop computer or PC. Computing device 900 may also be a mobile or stationary server.

Wherein the processor 920 is configured to execute computer-executable instructions for executing the computer-executable instructions, wherein the steps of the node determination method are implemented when the processor executes the computer-executable instructions.

The above is an illustrative scheme of a computing device of the present embodiment. It should be noted that the technical solution of the computing device and the technical solution of the node determining method belong to the same concept, and details that are not described in detail in the technical solution of the computing device can be referred to the description of the technical solution of the node determining method.

An embodiment of the present specification further provides a computer readable storage medium storing computer instructions which, when executed by a processor, implement the steps of the node determining method.

The above is an illustrative scheme of a computer-readable storage medium of the embodiment. It should be noted that the technical solution of the storage medium belongs to the same concept as the technical solution of the above-mentioned node determining method, and details that are not described in detail in the technical solution of the storage medium can be referred to the description of the technical solution of the above-mentioned node determining method.

The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

The computer instructions comprise computer program code which may be in source code form, object code form, an executable file or some intermediate form, or the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

It should be noted that for simplicity and convenience of description, the above-described method embodiments are shown as a series of combinations of acts, but those skilled in the art will appreciate that the present description is not limited by the order of acts described, as some steps may occur in other orders or concurrently with other steps from the present description. Further, those skilled in the art should also appreciate that the embodiments described in this specification are preferred embodiments and that acts and modules referred to are not necessarily required for this description.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

The preferred embodiments of the present specification disclosed above are intended only to aid in the description of the specification. Alternative embodiments are not exhaustive and do not limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the specification and its practical application, to thereby enable others skilled in the art to best understand the specification and its practical application. The specification is limited only by the claims and their full scope and equivalents.

Claims

1. A node determination method is applied to a node analysis server and comprises the following steps:

determining a target node from the initial node set according to a dimension screening condition; the dimension screening conditions comprise protocol quality conditions, push-in push-out coverage quality of each initial node is determined from the initial node set according to the protocol quality conditions, and a target node is determined based on the push-in push-out coverage quality, wherein the push-in push-out coverage quality is a difference value of coverage quality differences of the live broadcast stream determined according to the push-in coverage quality and the push-out coverage.

2. The node determination method according to claim 1, wherein the dimension filtering condition further comprises a location information condition and/or a network transmission condition.

3. The node determination method of claim 2, wherein determining the target node from the initial set of nodes according to the dimension filtering condition comprises:

4. The node determination method of claim 1, wherein determining the push-out coverage quality of each initial node from the set of initial nodes according to the protocol quality condition comprises:

determining the connection push-in coverage quality of each initial node from the initial node set according to a connection transmission protocol;

5. The node determination method of claim 4, wherein determining the push-out coverage quality for each initial node based on the connectionless push-out coverage quality comprises:

6. The node determination method of claim 5, wherein determining the push-out coverage quality for each initial node based on the connectionless push-out coverage quality comprises:

determining the connectionless push-out quality of each initial node as the push-out coverage quality of each initial node.

7. The node determination method of claim 4, wherein determining the push-out coverage quality of each initial node from the set of initial nodes according to the location information condition comprises:

8. The node determination method according to claim 6, wherein the connection push-in coverage quality and the connection push-out coverage quality are calculated as follows, including:

9. The node determination method of claim 1, wherein after determining the target node from the initial set of nodes according to the dimension filtering condition, further comprising:

10. A node determination method is applied to a node distribution server and comprises the following steps:

returning the service scheduling address to the client, wherein the service scheduling address is used for sending a node acquisition request to a node resolution server, the node resolution server determines an initial node set based on position information carried in the node acquisition request, and determines a target node from the initial node set according to a dimension screening condition; the dimension screening conditions comprise protocol quality conditions, push-in push-out coverage quality of each initial node is determined from the initial node set according to the protocol quality conditions, a target node is determined based on the push-in push-out coverage quality, and the push-in push-out coverage quality is a difference value of coverage quality differences determined by the live streaming according to the push-in coverage quality and the push-out coverage.

11. A node determination system, comprising: a client, a node distribution server and a node analysis server,

the node distribution server is configured to determine a service scheduling address based on a domain name identifier carried in the service address acquisition request, wherein the association relationship between the service scheduling address and the domain name identifier is preset, and the service scheduling address is returned to the client, wherein the service scheduling address is used for sending a node acquisition request to a node resolution server, the node resolution server determines an initial node set based on position information carried in the node acquisition request, and determines a target node from the initial node set according to a dimension screening condition; the dimension screening conditions comprise protocol quality conditions, push-in push-out coverage quality of each initial node is determined from the initial node set according to the protocol quality conditions, a target node is determined based on the push-in push-out coverage quality, and the push-in push-out coverage quality is a difference value of coverage quality differences determined by live streaming according to the push-in coverage quality and the push-out coverage;

the client is further configured to receive a service scheduling address sent by the node distribution server, and analyze a server sending node acquisition request to the node based on the service scheduling address;

the node analysis server is configured to determine an initial node set based on position information carried in the node acquisition request, determine a target node from the initial node set according to a dimension screening condition, and return the target node to the client, wherein the dimension screening condition includes a protocol quality condition, determine push-in push-out coverage quality of each initial node from the initial node set according to the protocol quality condition, and determine the target node based on the push-in push-out coverage quality, wherein the push-in push-out coverage quality is a difference value between coverage qualities determined by a live stream according to the push-in coverage quality and the push-out coverage.

12. A node determination device is applied to a node analysis server and comprises:

a determination module configured to determine a target node from the initial set of nodes according to a dimension screening condition; the dimension screening condition comprises a protocol quality condition, push-in push-out coverage quality of each initial node is determined from the initial node set according to the protocol quality condition, a target node is determined based on the push-in push-out coverage quality, and the push-in push-out coverage quality is a difference value of coverage quality differences determined by a live broadcast stream according to the push-in coverage quality and the push-out coverage.

13. A node determination device applied to a node distribution server comprises:

the sending module is configured to return the service scheduling address to the client, wherein the service scheduling address is used for sending a node acquisition request to a node resolution server, the node resolution server determines an initial node set based on position information carried in the node acquisition request, and determines a target node from the initial node set according to a dimension screening condition; the dimension screening conditions comprise protocol quality conditions, push-in push-out coverage quality of each initial node is determined from the initial node set according to the protocol quality conditions, a target node is determined based on the push-in push-out coverage quality, and the push-in push-out coverage quality is a difference value of coverage quality differences determined by the live streaming according to the push-in coverage quality and the push-out coverage.

14. A computing device, comprising:

a memory and a processor;

the memory is configured to store computer-executable instructions, and the processor is configured to execute the computer-executable instructions, wherein the processor, when executing the computer-executable instructions, performs the steps of the node determination method according to any one of claims 1 to 9 or 10.

15. A computer-readable storage medium, having stored thereon computer instructions which, when executed by a processor, carry out the steps of the node determination method according to any one of claims 1 to 9 or 10.