CN101098271A - Expandable P2P flow media system - Google Patents
Expandable P2P flow media system Download PDFInfo
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- CN101098271A CN101098271A CNA2006100901535A CN200610090153A CN101098271A CN 101098271 A CN101098271 A CN 101098271A CN A2006100901535 A CNA2006100901535 A CN A2006100901535A CN 200610090153 A CN200610090153 A CN 200610090153A CN 101098271 A CN101098271 A CN 101098271A
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Abstract
The invention discloses an expandable P2P flow media system, for resolving the problem of prior P2P flow media system as bad expansion. The system comprises a source server for distributing stored initial flow media resource to relative super nodes, and sending stored character information of the flow media resource to a relative proxy server, a proxy server for collecting the relative character information, to be synchronized to all inquire servers, an inquire server for managing the state information of each current accessed client, to display the character information of flow media resource provided by the system to client. The invention can add relative servers in system when the support ability of system is not enough, without modifying server code and changing system structure, to expand the system support ability.
Description
Technical field
The present invention relates to network communication field, relate in particular to a kind of extendible P2P stream media system.
Background technology
Streaming media service is a kind of big data quantity network service based on the stream transmission technology on IP network, provides the streaming media server of this service to need the very big network bandwidth.See also Fig. 1, this figure is the configuration diagram of conventional flow media system, traditional stream media system is based on C/S (Client/Server) pattern, form by streaming media server and several clients, in this system, all clients all need to obtain the streaming media resource of its needs from streaming media server, and therefore the bandwidth requirement of traditional stream media system convection media server is very high, and the number of users of its support is also very limited, generally has only several thousand users.
The stream media system of being used widely in the prior art at present is a kind of stream media system based on the P2P technology, see also Fig. 2, this figure is the configuration diagram of P2P stream media system in the prior art, it mainly comprises source server, querying server, logon server, super node and client, the main effect of each part is as follows:
Source server is used for the primary flow media resource is distributed to each super node, and the characteristic information of this primary flow media resource is sent to querying server;
Querying server, the characteristic information that is used for streaming media resource that system can be provided offers logging on client, state information to the current download stream media resource of each client in the system is carried out collection management, when receiving the seed inquiry request that client sends, can provide the client of respective resources and the address information request of sending to of super node to initiate client;
Logon server is used to handle the logging request of client, and the client of sending logging request is verified, it is redirected on the corresponding querying server;
Super node is used for obtaining the primary flow media resource from source server, and provides corresponding streaming media resource according to the request of client to it;
Client is used for sending seed inquiry request to querying server, connects according to the address information that receives and corresponding super node and client, and it is mutual to carry out resource.
Above-mentioned P2P stream media system has been realized resource query and mutual the separating of resource, because source server is distributed to super node in the system with the primary flow media resource, therefore each client in the system at first by with super node get access to streaming media resource alternately, the client that gets access to streaming media resource then just can be used as resource provider other clients in system provides this streaming media resource, this process has realized the continuous propagation of streaming media resource in whole system, finally make the arbitrary client in the system to obtain needed streaming media resource there from other adjacent client, and do not need directly from source server, to obtain streaming media resource, thereby greatly reduce the bandwidth consumption of source server.
Under the condition of comparable bandwidths resource, source server in the above-mentioned P2P stream media system is compared with the streaming media server in the above-mentioned conventional flow media system, can support more user, therefore generally speaking, above-mentioned P2P stream media system generally can support tens0000 a people even hundreds of thousands user.Yet when number of users surpasses the maximum support quantity of P2P stream media system, just need expand the server in the above-mentioned P2P stream media system, and the extensibility of above-mentioned P2P stream media system is very poor, if will expand, just must carry out construction again to the framework of whole system to this system.
In above-mentioned P2P stream media system, querying server is the busiest and crucial part in addition, if if it breaks down, whole system all can be paralysed so, and therefore the reliability of above-mentioned P2P stream media system is lower.
The many disadvantages that exists in view of above-mentioned P2P stream media system, as can be known itself and be not suitable for the application of witched-capacity network environment.
Summary of the invention
The invention provides a kind of extendible P2P stream media system, in order to solve the relatively poor problem of extensibility of P2P stream media system in the prior art.
Technical solution of the present invention comprises:
A kind of extendible P2P stream media system comprises source server, acting server and querying server, wherein,
Source server, be used for will self storage the primary flow media resource be distributed to corresponding super node, and the characteristic information of the streaming media resource of self storage is sent to corresponding acting server;
Acting server is used for collecting the characteristic information of the streaming media resource that each source server corresponding with self store, and with this information synchronization to all querying servers;
Querying server, be used to manage each client's state information of current login self, the characteristic information of the current streaming media resource that can provide of system is shown to client, when receiving the seed inquiry request of client, can provide the client of respective resources and the address information request of sending to of super node to initiate client.
Preferably, when increasing source server newly in the system, should newly-increased source server the primary flow media resource of self storage be distributed to pre-configured corresponding super node, and the characteristic information of the streaming media resource of self storage be sent to the acting server of pre-configured correspondence.
Preferably, when the described source server characteristic information of streaming media resource deleted at the streaming media resource of self storage or self storage changed, the characteristic information of the streaming media resource of storing in the acting server to self correspondence carried out corresponding renewal.
Preferably, when described acting server changes at the characteristic information of streaming media resource of self storage, the characteristic information of the streaming media resource of self storage is synchronized on all querying servers.
Preferably, when increasing acting server newly in the system, need reconfigure the corresponding relation of source server and acting server, source server connects according to this corresponding relation that reconfigures and corresponding acting server, the characteristic information of streaming media resource of self storage is sent to corresponding acting server, the characteristic information of the streaming media resource stored in the acting server is upgraded;
The characteristic information of the streaming media resource after acting server will upgrade is synchronized to all querying servers.
Preferably, when increasing querying server newly in the system, all acting servers connect with this newly-increased querying server respectively in the system, and all acting server sends to this newly-increased querying server with the characteristic information of the streaming media resource of self storage respectively in the system.
Preferably, described system also comprises management server and logon server, wherein,
Management server is used for all querying servers of management system, is that logon server is formulated and is redirected strategy according to the state information of all querying servers in the system, sends it to all logon servers;
Logon server is used to handle the logging request of client, and the redirected strategy of formulating according to management server redirects the client to corresponding querying server.
Preferably, when increasing querying server newly in the system, this querying server is given management server with the status information reporting of self automatically.
Preferably, described management server regularly obtains the state information of all querying servers in the system, formulates with this and is redirected strategy, and when redirected strategy changes, the redirected strategy of storing in all logon servers is upgraded.
Preferably, comprise the current working condition indication information of querying server, current maximum support number of users information and current online user number information in the state information of described querying server.
Preferably, described system also comprises:
Name server, be used for the logon server that system is all and be tied to same domain name, when receiving the logging request of client, be that at random client determines corresponding logon server, the address information of described definite logon server is returned to client.
Preferably, when increasing logon server newly in the system, querying server and management servers all in newly-increased logon server and the system connect, and add the address information of this newly-increased logon server in name server.
Preferably, described system also comprises:
Standby management server, with the shared identical address of described management server, state information to the inquiring client terminal stored in the management server backs up, when management server breaks down, state information according to all querying servers in the system is that logon server is formulated redirected strategy, sends it to all logon servers.
Beneficial effect of the present invention is as follows:
The invention provides a kind of extendible P2P stream media system, comprise source server, acting server, querying server, acting server in the system is used for collecting the characteristic information of the streaming media resource that each source server corresponding with self store, and with this information synchronization to all querying servers, thereby make that the characteristic information of the streaming media resource stored in all querying server in the system is identical, client signs in to the streaming media service that all can obtain equal in quality in the system on any querying server like this.
System of the present invention further comprises and is used for monitoring and the management server of the querying server that management system is all, management server regularly obtains the state information of all querying servers in the system, state information according to all querying servers in the system is that logon server is formulated redirected strategy, when certain querying server breaks down, can avoid this querying server automatically, redirect the client to the querying server of other operate as normal, guaranteed the stability and the reliability of system.
System of the present invention has realized constantly increasing in the streaming media resource amount that number of users constantly increases or system provides, under the situation of the enabling capabilities deficiency of system, only need in system, increase corresponding server, and need not to rewrite code server and the altering system framework can carry out dilatation to the enabling capabilities of system.
Description of drawings
Fig. 1 is the configuration diagram of conventional flow media system;
Fig. 2 is the configuration diagram of P2P stream media system in the prior art;
Fig. 3 is the configuration diagram of the extendible P2P stream media system of the present invention.
Embodiment
For solving the defective that exists in the above-mentioned existing P2P stream media system, the invention provides a kind of extendible P2P stream media system, this system has realized constantly increasing in the streaming media resource amount that number of users constantly increases or system provides, under the situation of the enabling capabilities deficiency of system, only need in system, increase corresponding server, and need not to rewrite code server and the altering system framework can carry out dilatation to the enabling capabilities of system.
Be explained in detail to the main realization principle of technical solution of the present invention, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.
See also Fig. 3, this figure is the configuration diagram of the extendible P2P stream media system of the present invention, it mainly comprises source server, acting server, querying server, logon server, super node and client, and wherein the major function of each part is as follows:
Source server, connect respectively with corresponding super node and corresponding acting server, be used for will self storage the primary flow media resource be distributed to the super node of self correspondence, and the characteristic information of streaming media resource of self storage sent to corresponding acting server, and the characteristic information of streaming media resource of or self storage deleted at the streaming media resource of self storage is when changing, and the characteristic information of the streaming media resource of storing in the acting server to self correspondence carries out corresponding renewal.
Acting server, connect respectively with querying servers all in corresponding source server and the system, be used for receiving the characteristic information of the streaming media resource that each source server corresponding with self store, and when the characteristic information of the streaming media resource of self storing changes, this information synchronization to all querying servers, is made that the characteristic information of the streaming media resource stored in all querying server in the system is identical.
Querying server, be connected respectively with acting servers all in the system, be used to manage each client's state information of current login self, the characteristic information of the current streaming media resource that can provide of system is shown to client, when receiving the seed inquiry request of client, can provide the client of respective resources and the address information request of sending to of super node to initiate client;
The characteristic information of the streaming media resource of storing in all querying server in the system is identical, therefore the streaming media service that all querying servers externally provide in the system is on all four, and client signs in to the streaming media service that all can obtain equal in quality in the system on any querying server like this.
Logon server is connected respectively with querying server all in the system, is used to handle the logging request of client, and the client of sending logging request is verified, it is redirected on the corresponding querying server.
Super node connects corresponding source server, is used for obtaining the primary flow media resource from source server, and provides corresponding streaming media resource according to the request of client to it.
Client is used for sending seed inquiry request by logon server to querying server, connects according to the address information that receives and corresponding super node and client, and it is mutual to carry out resource.
Preferably, concentrate certain logon server of login for fear of a large amount of clients, cause the appearance of the situation of network congestion, the extendible P2P stream media system of the present invention further comprises:
Name server, be used for the logon server that system is all and be tied to same domain name, when receiving the logging request of client, determine corresponding logon server for client at random, the address information of described definite logon server is returned to client, thereby avoided a large amount of clients to concentrate certain logon server of login, caused the appearance of the situation of its excessive congestion.
Preferably, because querying server is the part of the busiest and most critical in the whole system, therefore for the resistance to overturning and the reliability of maintenance system, the extendible P2P stream media system of the present invention further comprises:
Management server, be connected respectively with querying servers all in the system, be used for monitoring and querying server that management system is all, regularly obtain the state information of all querying servers in the system, state information according to all querying servers in the system is that logon server is formulated redirected strategy, when redirected strategy changes it is sent to all logon servers respectively.
The state information of the querying server that described management server obtains comprises: working condition indication information, current maximum support number of users information and current online user number information that querying server is current, wherein whether the working condition indication information of querying server is used to indicate querying server current working properly.
When certain querying server breaks down, management server can be known this fault very soon, its working condition indication information is set to fault in state information list, management server is revised the redirected strategy of logon server immediately, make the client login time avoid the querying server of this fault, and amended redirected strategy is sent to all logging on client in the system.The client of login on the querying server of this fault can be logined again, and logon server can be redirected to according to the client that up-to-date redirected strategy will heavily be logined on other normal querying server.After the querying server that breaks down recovers, management server can change to its working condition indication information normally in state information list, revise the redirected strategy of logon server then, logon server can be redirected to the client of new login on this querying server, and amended redirected strategy is sent to all logging on client in the system.This process brings in to say it is fully transparent for holding the family, can not influence its normal work and login.
System of the present invention is a kind of extendible P2P stream media system, this system has realized constantly increasing in the streaming media resource amount that number of users constantly increases or system provides, under the situation of the enabling capabilities deficiency of system, only need in system, increase corresponding server, multiple servers is combined service externally is provided jointly, i.e. " parallel expansion ", and need not to rewrite code server and the altering system framework can carry out dilatation to the enabling capabilities of system, describe the detailed process that each part in the system is carried out parallel expansion below in detail:
1) the parallel expansion of source server
Every source server is responsible for issuing a part of media stream resources, when more the media stream resource need be issued, just need in system, increase corresponding source server, when increasing source server newly in the system, should newly-increased source server the primary flow media resource of self storing be distributed to pre-configured corresponding super node, and the characteristic information of streaming media resource of self storage sent to the acting server of pre-configured correspondence, the client in can the assurance system can inquire the characteristic information of this newly-increased media stream resources.
2) the parallel expansion of acting server
Every acting server is in charge of the source server of limited quantity, when the quantity of the source server of certain agency service management in the system surpasses its maximum support ability, need in system, increase acting server newly, and the corresponding relation of source of configuration server and acting server again, source server connects according to this corresponding relation that reconfigures and corresponding acting server, the characteristic information of streaming media resource of self storage is sent to the acting server of the correspondence that reconfigures, characteristic information to the streaming media resource stored in the acting server upgrades, and the characteristic information of the streaming media resource after acting server will upgrade is synchronized to all querying servers.
3) the parallel expansion of querying server
Querying server is responsible for the state-maintenance of client and is planted function such as subquery, it is part the busiest and crucial in the whole system, when online user's total quantity surpasses the total support number of all querying servers, just need in system, increase querying server newly with the alleviation system pressure.When increasing querying server newly in the system, acting servers all in the system connect with this newly-increased querying server respectively, all acting servers send to this newly-increased querying server with the characteristic information of streaming media resource of self storage respectively, and this querying server is given management server with the status information reporting of self automatically.Behind the newly-increased querying server of system, management server can be reformulated redirected policy control logging on client is redirected on the newly-increased querying server, and the fully loaded querying server increases any new load again and can not give.
4) the parallel expansion of management server
Management server just is responsible for monitoring and is safeguarded the state information of all querying servers, pressure minimum in whole system, single machine is just enough competent, generally do not need to increase the parallel expansion of new engine, but great in view of its effect for the sake of security, can increase the management server of a backup in system, carry out the Hot Spare of two-shipper, another can replace it and works on when not working to guarantee wherein one.Described standby management server and the shared identical address of described management server, state information to the inquiring client terminal stored in the management server backs up, when management server breaks down, state information according to all querying servers in the system is that logon server is formulated redirected strategy, sends it to all logon servers.
5) the parallel expansion of logon server
Logon server is used to handle the logging request of client, it is redirected on the corresponding querying server, when the total quantity of logging on client surpasses the total support number of all logon servers, just need to increase the login pressure that new logon server is alleviated system.When increasing logon server newly in the system, querying server and management servers all in newly-increased logon server and the system connect, and add the address information of this newly-increased logon server in domain name resolution server.
6) the parallel expansion of super node
Super node mainly is to be responsible for obtaining original streaming media resource from corresponding source server, and provides corresponding streaming media resource according to the request of client to it, and super node quantity can have certain influence to the transfer effect of streaming media resource.When system increased super node, the source server of this super node correspondence need send to the primary flow media resource of self storing this newly-increased super node.Under the less situation of the number of users of whole system, not too frequent alternately between the client, so at this moment the transfer effect of super node just seems important, at this moment newly-increased super node can improve the transfer effect of streaming media resource in system; But continuous increase along with the system user number, mutual just become more and more frequent between the client, thereby become the mutual main mode of streaming media resource, at this moment increasing new super node again opens for the whole transfer effect of the streaming media resource of integral body and does not have too big improvement, so under the more situation of the number of users of whole system, the quantity of super node is generally fixed, and does not need unconfined parallel expansion.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (13)
1, a kind of extendible P2P stream media system is characterized in that, comprises source server, acting server and querying server, wherein,
Source server, be used for will self storage the primary flow media resource be distributed to corresponding super node, and the characteristic information of the streaming media resource of self storage is sent to corresponding acting server;
Acting server is used for collecting the characteristic information of the streaming media resource that each source server corresponding with self store, and with this information synchronization to all querying servers;
Querying server, be used to manage each client's state information of current login self, the characteristic information of the current streaming media resource that can provide of system is shown to client, when receiving the seed inquiry request of client, can provide the client of respective resources and the address information request of sending to of super node to initiate client.
2, the system as claimed in claim 1, it is characterized in that, when increasing source server newly in the system, should newly-increased source server the primary flow media resource of self storage be distributed to pre-configured corresponding super node, and the characteristic information of the streaming media resource of self storage be sent to the acting server of pre-configured correspondence.
3, the system as claimed in claim 1, it is characterized in that, when the described source server characteristic information of streaming media resource deleted at the streaming media resource of self storage or self storage changed, the characteristic information of the streaming media resource of storing in the acting server to self correspondence carried out corresponding renewal.
4, as claim 2 or 3 described systems, it is characterized in that, when described acting server changes at the characteristic information of streaming media resource of self storage, the characteristic information of the streaming media resource of self storage is synchronized on all querying servers.
5, the system as claimed in claim 1, it is characterized in that, when increasing acting server newly in the system, need reconfigure the corresponding relation of source server and acting server, source server connects according to this corresponding relation that reconfigures and corresponding acting server, the characteristic information of streaming media resource of self storage is sent to corresponding acting server, the characteristic information of the streaming media resource stored in the acting server is upgraded;
The characteristic information of the streaming media resource after acting server will upgrade is synchronized to all querying servers.
6, the system as claimed in claim 1, it is characterized in that, when increasing querying server newly in the system, all acting servers connect with this newly-increased querying server respectively in the system, and all acting server sends to this newly-increased querying server with the characteristic information of the streaming media resource of self storage respectively in the system.
7, the system as claimed in claim 1 is characterized in that, described system also comprises management server and logon server, wherein,
Management server is used for all querying servers of management system, is that logon server is formulated and is redirected strategy according to the state information of all querying servers in the system, sends it to all logon servers;
Logon server is used to handle the logging request of client, and the redirected strategy of formulating according to management server redirects the client to corresponding querying server.
8, system as claimed in claim 7 is characterized in that, when increasing querying server newly in the system, this querying server is given management server with the status information reporting of self automatically.
9, system as claimed in claim 7, it is characterized in that described management server regularly obtains the state information of all querying servers in the system, formulate with this and be redirected strategy, and when redirected strategy changes, the redirected strategy of storing in all logon servers is upgraded.
10, as any described system in the claim 7 to 9, it is characterized in that, comprise the current working condition indication information of querying server, current maximum support number of users information and current online user number information in the state information of described querying server.
11, system as claimed in claim 7 is characterized in that, described system also comprises:
Name server, be used for the logon server that system is all and be tied to same domain name, when receiving the logging request of client, be that at random client determines corresponding logon server, the address information of described definite logon server is returned to client.
12, system as claimed in claim 11, it is characterized in that, when increasing logon server newly in the system, querying server and management servers all in newly-increased logon server and the system connect, and add the address information of this newly-increased logon server in name server.
13, system as claimed in claim 7 is characterized in that, described system also comprises:
Standby management server, with the shared identical address of described management server, state information to the inquiring client terminal stored in the management server backs up, when management server breaks down, state information according to all querying servers in the system is that logon server is formulated redirected strategy, sends it to all logon servers.
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| CN103348653B (en) * | 2012-01-17 | 2016-01-20 | 华为技术有限公司 | The method and apparatus of dilatation and the method and apparatus of visit data |
| CN103561013A (en) * | 2013-10-29 | 2014-02-05 | 联想中望***服务有限公司 | Streaming media data distributing system |
| CN103561013B (en) * | 2013-10-29 | 2016-07-13 | 越亮传奇科技股份有限公司 | The data distribution systems of Streaming Media |
| CN113612813A (en) * | 2021-06-23 | 2021-11-05 | 上海骞云信息科技有限公司 | Distributed cross-network access method, device, system and storage medium |
| CN113612813B (en) * | 2021-06-23 | 2024-06-11 | 上海骞云信息科技有限公司 | Distributed cross-network access method, device, system and storage medium |
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