CN103024076B - A kind of live dispatching patcher and method being applied to peer-to-peer network - Google Patents
A kind of live dispatching patcher and method being applied to peer-to-peer network Download PDFInfo
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- CN103024076B CN103024076B CN201210588344.XA CN201210588344A CN103024076B CN 103024076 B CN103024076 B CN 103024076B CN 201210588344 A CN201210588344 A CN 201210588344A CN 103024076 B CN103024076 B CN 103024076B
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Abstract
The present invention proposes a kind of live dispatching patcher being applied to peer-to-peer network, when client is to cache server request live data, described client is divided into normal live client and postpones live client by cache server, cache server provides live data and the live client of organizational delay to obtain live file from described normal live client by P2P downloading mode to normal live client, thus improves overall network output bandwidth decreasing server burden simultaneously.
Description
Technical field
The present invention relates to a kind of live dispatching patcher and the method that are applied to peer-to-peer network, belong to stream media technology field.
Background technology
Relative to traditional live telecast, the selectivity of IPTV is strong, and rating is convenient.TV signal is introduced the Internet by IPTV, makes user can watch each TV station and other live class programs on the internet.But the load that the services such as net cast can strengthen server is carried out in website by network, consume huge bandwidth resources, also have very high requirement to whole Internet Transmission link, the Internet user to nationwide provides network direct broadcasting service meeting very difficult simultaneously.Often peer-to-peer network (Peer-to-PeerNetwork can be adopted in order to address this problem operator; Hereinafter referred to as P2P network) streaming media live broadcast technology, P2P network share and routing engine is made as spectators and provides good streaming media video live-experience fast.
The P2P network platform is made up of two levels.One deck is the CDN(ContentDeliveryNetwork of server level, i.e. internet content delivery network above) network, below one deck be client terminal composition P2P network.
The simplest CDN only needs the DNS of a responsible GSLB and each node cache server (can be called for short CachingServer below), can run.DNS supports the IP different according to user source IP address resolution, realizes accessing nearby.In order to ensure high availability etc., CDN network management center needs the flow, health status etc. of monitoring each node.When the separate unit CachingServer carrying quantity of a node is inadequate, just needs multiple stage CachingServer, when multiple stage CachingServer works, just need load equalizer simultaneously, make CachingServer group's collaborative work.
How reducing server load by the live strategy changed in P2P network, to drive whole network to contribute more multi-band wide be a problem faced by this area needs simultaneously.
Summary of the invention
The present invention proposes a kind of live dispatching patcher being applied to peer-to-peer network, the operating mechanism of this system is: when client is to cache server request live data, described client is divided into normal live client and postpones live client by cache server, cache server provides live data and the live client of organizational delay to obtain live file from described normal live client to normal live client, thus improves overall network output bandwidth decreasing server burden simultaneously.For this reason, the present invention proposes following technical scheme:
Be applied to a live dispatching patcher for peer-to-peer network, at least comprise: a GSLB dns server, one or more cache server, one or more client, wherein,
The function of GSLB dns server is:
A1, watch request for what receive that client sends;
A2, for reading the cache server peer distribution strategy pre-defined, according to this strategy, the cache server node address of the best being supplied to client, user is served fast,
Cache server has following function:
B1, for stored stream media live file;
B2, for receive GSLB dns server forward watch request;
B3, for this client being divided into normal live client after client watches request or postponing live client receiving;
B4, for providing live file download service to normal live client;
B5, for the live client of organizational delay after one period of time of delay from described normal live client downloads live data,
Client has three functions:
C1, for GSLB dns server send watch request;
C2, for downloading live file or from other client downloads live file from live streaming media server;
C3, for providing P2P download service to other client sections;
C4, for playing stream media live file.
The present invention further provides a kind of live dispatching method being applied to peer-to-peer network and comprise following preferred steps:
A, client send to the GSLB dns server in CDN and watch request;
The request of this client is sent to cache server by one group of strategy pre-defined by B, GSLB dns server;
After C, cache server receive client-requested, first, this client be divided into normal live client or postpone live client, afterwards, to normal live client provide live file download service simultaneously the live client of control lag after one period of time of delay from described normal live client downloads live data.
In above-mentioned either a program preferably, above-mentioned client is one in smart mobile phone, desktop computer (Desktop), computer all-in-one machine, notebook computer, palmtop PC (PAD), panel computer, embedded computer or combination.
In above-mentioned either a program preferably, above-mentioned client watches that request sends with http form, and request content at least comprises direct broadcast band information and client ip address.
In above-mentioned either a program preferably, client-requested by analyzing client ip information thus draw position, client location, and to be sent to and cache server that load the lightest nearest from client according to client position by above-mentioned GSLB dns server.
In above-mentioned either a program preferably, cache server receives the zoning, geographical position according to client after the request of client, and the client in wherein a part of region is decided to be normal live client, and other regions are then decided to be and postpone live client.
In above-mentioned either a program preferably, cache server pro rata distributes normal live client or postpone live client after receiving the request of client.Such as, distribute normal live number clients and account for 50% of total number clients, the live number clients of assignment latency accounts for 50% of total number clients.
In above-mentioned either a program preferably, configuration file is written preferably the time of delay of the live client of above-mentioned delay.
In above-mentioned either a program preferably, cache server is by reading described configuration file and obtain delay time information and according to time of delay of the live client of delay time information control lag.
Accompanying drawing explanation
Accompanying drawing 1 is according to the schematic diagram being applied to a preferred embodiment of the live dispatching patcher of peer-to-peer network of the present invention.
Accompanying drawing 2 is the schematic diagrames according to carrying out cache server and the client's side link divided contained by the present invention with ISP.
Embodiment
Embodiment 1
As shown in Figure 1, in the P2P network platform, the present invention relates to and with this relevant component be: GSLB dns server, CachingServer, client.
GSLB dns server is two-node cluster hot backup server and principal and subordinate each other.CachingServer is used for stored stream media form programme televised live data.Client is a desktop computer and a notebook computer PDA and smart mobile phone.In the present embodiment, there are three class entities to connect, the connection by Internet between desktop computer, notebook computer, PDA, smart mobile phone respectively, desktop computer, notebook computer, PDA, smart mobile phone by the connection of Internet to CachingServer, CachingServer to the connection of GSLB dns server.
In the present embodiment, above-mentioned desktop computer, notebook, PDA, smart mobile phone have issued to GSLB dns server the request watching CCTV5 TV programme simultaneously, this request sends with http form, and request content comprises direct broadcast band information and client ip address.This request preferred format is as follows: Get/Channel={ $ channelname} & LocalIP={ $ iP}, wherein $ channelname} is channel designation, $ iP} is client ip address, and the request of above-mentioned 4 equipment is as follows:
Desktop computer, Get/Channel=" CCTV5 " & LocalIP=" 123.116.239.173 ";
Notebook, Get/Channel=" CCTV5 " & LocalIP=" 123.116.239.174 ";
PDA，Get/Channel="CCTV5"&LocalIP="123.122.75.118"；
Smart mobile phone, Get/Channel=" CCTV5 " & LocalIP=" 123.122.75.119 ".
The function of GSLB dns server is:
A1, watch request for what receive that client sends;
A2, for reading the CachingServer peer distribution strategy pre-defined, according to this strategy, best CachingServer node address being supplied to client, user is served fast.The selected of optimal node can have multiple strategy, such as nearest, node load is the lightest, or takes into account nearest and node load is the lightest.
In the present embodiment, GSLB dns server is asked and the client ip address read wherein for receiving watching that above-mentioned 4 client devices send, GSLB dns server is assert client geographical position and ISP by IP database, assert through GSLB dns server, it is CHINAUNICOM's Beijing Company that desktop computer is in Fengtai District, Beijing City ISP, it is CHINAUNICOM's Beijing Company that notebook is in Fengtai District, Beijing City ISP, it is CHINAUNICOM's Beijing Company that PDA is in Haidian District, Beijing City ISP, it is CHINAUNICOM's Beijing Company that smart mobile phone is in Haidian District, Beijing City ISP, 4 client-requested are assigned to the CachingServer of Beijing CDN node by this GSLB dns server afterwards.
CachingServer has following function:
B1, for stored stream media live file;
B2, for receive GSLB dns server forward watch request.
B3, for this client being divided into normal live client after client watches request or postponing live client receiving.
B4, for providing live file download service to normal live client.
B5, for the live client of organizational delay after one period of time of delay from described normal live client downloads live data.
Described CachingServer receives the zoning, geographical position according to client after the request of client, and the client in wherein a part of region is decided to be normal live client, and other regions are then decided to be and postpone live client.
In the present embodiment, Beijing CDN node is that multiple stage CachingServer works simultaneously, therefore adds and joins load equalizer, make CachingServer group's collaborative work.A CachingServer in the CDN node of Beijing receive GSLB dns server forward above-mentioned client device watch request after, according to the zoning, geographical position of client, 2 equipment being in Fengtai District, Beijing City are decided to be normal live client, 2 equipment being in Haidian District, Beijing City are decided to be and postpone live client, namely notebook and desktop computer are normal live client, and PDA and smart mobile phone are for postponing live client.CachingServer provides live file download service to notebook and desktop computer, and organizes PDA and smart mobile phone to download live data with P2P downloading mode from notebook and desktop computer after 10 seconds.
The time of delay of the live client of above-mentioned delay writes configuration file, when needs optimization P2P shares effect and revises this delay time, only needs the delay time revising configuration file.In the present embodiment, this configuration file is XML file, and this XML file preferred format is as follows:
<paras>
<lag>10</lag>
</paras>
Above-mentioned CachingServer is by reading described configuration file and obtain delay time information and according to time of delay of the live client of delay time information control lag.
Client has three functions:
B1, for GSLB dns server send watch request;
B2, for downloading live file or from other client downloads live file from live streaming media server;
B3, for providing P2P download service to other client sections;
B4, for playing stream media live file.
In the present embodiment, notebook and desktop computer are used for downloading live file from CachingServer and providing P2P download service to PDA and smart mobile phone; PDA and smart mobile phone then download live data with P2P downloading mode from notebook and desktop computer.
Embodiment 2
As shown in figure-1, in the P2P network platform, the present invention relates to and with this relevant component be: GSLB dns server, cache server (hereinafter referred to as CachingServer), client.
GSLB dns server is two-node cluster hot backup server and principal and subordinate each other.CachingServer is used for stored stream media form programme televised live data.Client is a desktop computer and a notebook computer PDA and smart mobile phone.In the present embodiment, there are three class entities to connect, the connection by Internet between desktop computer, notebook computer, PDA, smart mobile phone respectively, desktop computer, notebook computer, PDA, smart mobile phone by the connection of Internet to CachingServer, CachingServer to the connection of GSLB dns server.
In the present embodiment, above-mentioned desktop computer, notebook, PDA, smart mobile phone simultaneously to GSLB dns server have issued certain special interview with famous person live watch request, this request sends with http form, and request content comprises direct broadcast band information and client ip address.This request preferred format is as follows: Get/Channel={ $ channelname} & LocalIP={ $ iP}, wherein $ channelname} is channel designation, $ iP} is client ip address, and the request of above-mentioned 4 equipment is as follows:
Desktop computer, Get/Channel=" special interview with famous person direct broadcast band " & LocalIP=" 124.203.129.173 ";
Notebook, Get/Channel=" special interview with famous person direct broadcast band " & LocalIP=" 124.203.164.174 ";
PDA, Get/Channel=" special interview with famous person direct broadcast band " & LocalIP=" 124.203.170.118 ";
Smart mobile phone, Get/Channel=" special interview with famous person direct broadcast band " & LocalIP=" 124.203.178.119 ".
The function of GSLB dns server is:
A1, watch request for what receive that client sends;
A2, for reading the CachingServer peer distribution strategy pre-defined, according to this strategy, best CachingServer node address being supplied to client, user is served fast.The selected of optimal node can have multiple strategy, such as nearest, node load is the lightest, or takes into account nearest and node load is the lightest.
In the present embodiment, GSLB dns server is asked and the client ip address read wherein for receiving watching that above-mentioned 4 client devices send, GSLB dns server is assert client geographical position and ISP by IP database, assert through GSLB dns server, it is branch company of Beijing Tie Tong of China Mobile that desktop computer is in Pinggu district ISP, it is branch company of Beijing Tie Tong of China Mobile that notebook is in Chaoyang District, Beijing City ISP, it is branch company of Beijing Tie Tong of China Mobile that PDA is in Dongcheng District, Beijing during March ISP, it is branch company of Beijing Tie Tong of China Mobile that smart mobile phone is in Shijingshan District, Beijing ISP, 4 client-requested are assigned to a CachingServer of Beijing CDN node by this GSLB dns server afterwards, the ISP of this CachingServer is branch company of Beijing Tie Tong of China Mobile.
CachingServer has following function:
B1, for stored stream media live file;
B2, for receive GSLB dns server forward watch request.
B3, for this client being divided into normal live client after client watches request or postponing live client receiving.
B4, for providing live file download service to normal live client.
B5, for the live client of organizational delay after one period of time of delay from described normal live client downloads live data.
Described CachingServer pro rata distributes normal live client or postpone live client after receiving the request of client.Such as, distribute normal live number clients and account for 50% of total number clients, the live number clients of assignment latency accounts for 50% of total number clients.
In the present embodiment, Beijing CDN node is that multiple stage CachingServer works simultaneously, therefore adds and joins load equalizer, make CachingServer group's collaborative work.CachingServer is divided into according to Beijing area ISP by described CachingServer group: Beijing UNICOM CachingServer, Beijing Tie Tong CachingServer etc.The above-mentioned client device that GSLB dns server forwards by above-mentioned Beijing CDN node load equalizer watch that request dispatching is to Beijing Tie Tong CachingServer.Tie Tong CachingServer in Beijing is decided to be normal live client by 50% of above-mentioned client sum in proportion, and other are decided to be and postpone live client, and namely notebook and PDA are normal live client, and desktop computer and smart mobile phone are for postponing live client.CachingServer provides live file download service to notebook and PDA, and organizes desktop computer and smart mobile phone to download live data with P2P downloading mode from notebook and PDA after 10 seconds.
The time of delay of the live client of above-mentioned delay writes configuration file, when needs optimization P2P shares effect and revises this delay time, only needs the delay time revising configuration file.In the present embodiment, this configuration file is XML file, and this XML file preferred format is as follows:
<paras>
<lag>10</lag>
</paras>
Above-mentioned CachingServer is by reading described configuration file and obtain delay time information and according to time of delay of the live client of delay time information control lag.
Client has three functions:
B1, for GSLB dns server send watch request;
B2, for downloading live file or from other client downloads live file from live streaming media server;
B3, for providing P2P download service to other client sections;
B4, for playing stream media live file.
In the present embodiment, notebook and PDA are used for downloading live file from CachingServer and providing P2P download service to desktop computer and smart mobile phone; Desktop computer and smart mobile phone then download live data with P2P downloading mode from notebook and PDA.
The technical scheme that the present invention proposes is mainly through the time of delay of the live client of control lag, and the quantity of the live client of control lag, reach two objects, one is, decrease server burden, two are, improve overall network output bandwidth.
It should be understood that, accompanying drawing of the present invention and elaboration are by simplifying, only describe for being well understood to the requisite key element of the present invention, for the purpose of clear and concise, eliminate the key element that some adopt in common calculation element, system and method, after having read this specification, those skilled in the art have been not difficult to find out these abridged key elements and effect in the present invention thereof.And one of ordinary skill in the art will appreciate that, these abridged key elements are wished and/or needs for realizing the present invention.It will be appreciated by those skilled in the art that, present invention comprises each technical scheme directly described in the description, also include the derivative schemes be bonded of each technical scheme directly described by these, even comprise by the derivative schemes be bonded of each feature forming each scheme that these have described.All improvement based on aim of the present invention all fall within protection scope of the present invention.
Those skilled in the art are not difficult to find out equally, the present invention is improvements over the prior art, for solving in prior art the technical problem existed and the combination these key elements of the prior art carried out, this combination has been condensed a large amount of creative works, is the crystallization of a large amount of theoretical research of inventor and scientific experiment.Before not reading the present invention, those skilled in the art are obviously not easy to expect each scheme of the present invention, and after having read this specification, those skilled in the art need not pay creative work again can realize basic technical scheme of the present invention.
Claims (17)
1. be applied to a live dispatching patcher for peer-to-peer network, comprise: a GSLB dns server, one or more cache server, one or more client, wherein,
GSLB dns server has following function:
A1, watch request for what receive that client sends;
A2, for reading the cache server peer distribution strategy pre-defined, according to this strategy, best cache server node address is supplied to client,
Cache server has following function:
B1, for stored stream media live file;
B2, for receive GSLB dns server forward watch request;
B3, for this client being divided into normal live client after client watches request or postponing live client receiving;
B4, for providing live file download service to normal live client;
B5, for the live client of organizational delay after one period of time of delay from described normal live client downloads live data,
Client has four functions:
C1, for GSLB dns server send watch request;
C2, for downloading live file or from other client downloads live file from live streaming media server;
C3, for providing P2P download service to other client sections;
C4, for playing stream media live file.
2. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, described client is one in smart mobile phone, desktop computer, computer all-in-one machine, notebook computer, palmtop PC, panel computer, embedded computer or combination.
3. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, described client watches that request sends with http form, and request content comprises direct broadcast band information and client ip address.
4. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, client-requested by analyzing client ip information thus draw position, client location, and to be sent to and cache server that load the lightest nearest from client according to position, client location by described GSLB dns server.
5. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, described cache server receives the zoning, geographical position according to client after the request of client, the client in wherein a part of region is decided to be normal live client, and other regions are then decided to be and postpone live client.
6. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, described cache server pro rata distributes normal live client or postpone live client after receiving the request of client.
7. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 1, it is characterized in that, the time of delay of the live client of described delay writes configuration file.
8. be applied to the live dispatching patcher of peer-to-peer network as claimed in claim 7, it is characterized in that, described cache server is by reading described configuration file and obtain delay time information and according to time of delay of the live client of delay time information control lag.
9. be applied to a live dispatching method for peer-to-peer network, it is characterized in that, comprise the following steps:
A, client send to the GSLB dns server in CDN and watch request;
B, GSLB dns server receive that client sends watch request after, the request of this client is sent to cache server by the strategy pre-defined by a group;
After C, cache server receive client-requested, first, this client be divided into normal live client or postpone live client, then, to normal live client provide live file download service simultaneously the live client of control lag after one period of time of delay from described normal live client downloads live data.
10. be applied to the live dispatching method of peer-to-peer network as claimed in claim 9, it is characterized in that, in described steps A, client watches that request sends with http form, and request content comprises direct broadcast band information and client ip address.
The 11. live dispatching methods being applied to peer-to-peer network as claimed in claim 9, it is characterized in that, in described step B, client-requested by analyzing client ip information thus draw position, client location, and to be sent to from client recently and the lightest cache server of load according to position, client location by GSLB dns server.
The 12. live dispatching methods being applied to peer-to-peer network as claimed in claim 9, is characterized in that, in described step B, described in the strategy that pre-defines comprise the combination of nearest strategy, the lightest strategy of load and two strategies.
The 13. live dispatching methods being applied to peer-to-peer network as claimed in claim 12, is characterized in that, by client, described nearest strategy watches that request is sent to from the nearest cache server of client.
The 14. live dispatching methods being applied to peer-to-peer network as claimed in claim 12, is characterized in that, by client, the lightest strategy of described load watches that request is sent to the lightest cache server of load.
The 15. live dispatching methods being applied to peer-to-peer network as claimed in claim 12, is characterized in that, by client, the combination of described two strategies watches that request is sent to distance client recently and the lightest cache server of load.
The 16. live dispatching methods being applied to peer-to-peer network as claimed in claim 9, it is characterized in that, described step C high speed caching server receives the zoning, geographical position according to client after the request of client, the client in wherein a part of region is decided to be normal live client, and other regions are then decided to be and postpone live client.
The 17. live dispatching methods being applied to peer-to-peer network as claimed in claim 9, is characterized in that, pro rata distribute normal live client or postpone live client after described step C high speed caching server receives the request of client.
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| CN104780184A (en) * | 2014-01-09 | 2015-07-15 | 华耀(中国)科技有限公司 | Method of using geographical location information for load balancing |
| CN105450615B (en) * | 2014-09-02 | 2019-06-14 | 中国移动通信集团广东有限公司 | Multimedia live broadcasting method, system, server, first terminal and second terminal |
| CN104967873A (en) * | 2015-06-29 | 2015-10-07 | 上海帝联信息科技股份有限公司 | Streaming live scheduling method, system and scheduling server |
| CN105141660B (en) * | 2015-07-24 | 2018-04-24 | 网宿科技股份有限公司 | A kind of Streaming Media management method and system |
| CN105872627A (en) * | 2015-12-15 | 2016-08-17 | 乐视云计算有限公司 | Transmission method and equipment for live data |
| CN106210797B (en) * | 2016-07-29 | 2021-04-13 | 北京小米移动软件有限公司 | Network live broadcast method and device |
| CN106231365B (en) * | 2016-08-18 | 2019-08-06 | 北京斗牛科技有限公司 | A kind of dispatching method and system |
| CN106375802B (en) * | 2016-09-30 | 2019-06-14 | 四川世纪云道科技有限公司 | Low bandwidth intelligent mobile terminal net cast method and system |
| CN107995244A (en) * | 2016-10-27 | 2018-05-04 | 北京优朋普乐科技有限公司 | A kind of data request method and device of live multimedia resource |
| CN110365621B (en) * | 2018-03-26 | 2022-03-15 | 阿里巴巴（中国）有限公司 | Method and device for processing multimedia resource service |
| CN110198332B (en) * | 2018-04-13 | 2021-11-16 | 腾讯科技（深圳）有限公司 | Scheduling method and device for content distribution network node and storage medium |
| CN109640107B (en) * | 2018-12-13 | 2021-07-27 | 网易（杭州）网络有限公司 | Live video data transmission method and device |
| CN111131272B (en) * | 2019-12-27 | 2022-01-11 | 广州酷狗计算机科技有限公司 | Scheduling method, device and system of stream server, computing equipment and storage medium |
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