CN101136911A - Method to download files using P2P technique and P2P download system - Google Patents
Method to download files using P2P technique and P2P download system Download PDFInfo
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- CN101136911A CN101136911A CN 200610127645 CN200610127645A CN101136911A CN 101136911 A CN101136911 A CN 101136911A CN 200610127645 CN200610127645 CN 200610127645 CN 200610127645 A CN200610127645 A CN 200610127645A CN 101136911 A CN101136911 A CN 101136911A
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- node server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1061—Peer-to-peer [P2P] networks using node-based peer discovery mechanisms
- H04L67/1063—Discovery through centralising entities
Abstract
The method includes steps: client end sends request for querying seed message including carried ID of downloading file to pointed server of home node; the server of home node returns back local seed information, and information of other node servers at network side of possessing the seed; the client end obtains correspongding seed information from other node servers, and downloads segment of file from corresponding client end based on the seed information returned from the said home node server, and other node servers. The invention also discloses a P2P downloading system. The invention raises downloading efficiency of P2P, reduces flux and bandwidth of server.
Description
Technical field
The present invention relates to network service, relate in particular to a kind of method and system of employing P2P (peer to peer) technology file in download.
Background technology
The P2P download technology is meant client from server file in download process, regularly shares the client-side information of this document with server exchange, and client is upgraded the loading source nodal information simultaneously, from the relative client file in download fragment of sharing this document to this locality.Adopt the P2P download technology, obtain resources mode from server and carry out the transition to the pattern that multiple spot obtains resource by single, and share self existing resource; Therefore, P2P downloads and can realize file-sharing, internet exchange, exchange files and distribution calculating etc. based on P-2-P technology.
P2P of the prior art downloads and is mainly used in above the big file-sharing, as video file, user A gets access to the user profile that other share this video file from certain given server, this user A and current online other subscription client (being seed) of sharing this video file connect then, obtain self resource requirement (file fragment of this video file).
In the prior art, because problems such as server capacity restriction, need redirect the client to different servers, this client that will cause downloading same file simultaneously may be distributed on the different servers, therefore, when client is obtained seed information (promptly obtaining other client-side information of downloading same file) to the attribution server that resets the back appointment, can not effectively get access to seed information whole in the whole system (can only get access to the local seed information in its attribution server), like this, because the minimizing of seed amount makes client overlapping (overlapping time when promptly downloading same file) probability reduce, degree of share is lower between the client, P2P download efficiency (client is from the ratio of other clients of downloading same resource total resources that obtains and the total resources that obtains from the attribution server end) is lower, the attribution server information flow-rate is big, needs to consume more bandwidth.
Particularly for the less file of size, because its download time is shorter, the overlapping probability of client is littler, and the P2P download efficiency will be lower.
Summary of the invention
The invention provides a kind of method and P2P download system of the P2P of employing technology file in download, in order to solve exist in the prior art owing to can not effectively get access to abundant seed information, cause the low problem of P2P download efficiency.
The method of employing P2P technology file in download provided by the invention comprises:
A, client send the inquiry seed request message that carries the file in download sign to the home node server of appointment;
B, described home node server return local seed information and have other node server information of network side of this seed;
C, described client are obtained respective seed information to described other node server, and the seed information that returns according to described home node server and other node server, from corresponding client downloads file fragment.
According to said method of the present invention, also comprise before the described steps A:
Client login Redirect Server;
Described Redirect Server is specified the home node server of a node server that present load is the lightest as this client, and is notified to this client according to the load state of each node server of network side;
Described client is registered in the home node server of appointment.
According to said method of the present invention, the load state of each node server cycle statistics of network side self also reports described Redirect Server;
Described Redirect Server writes down the present load situation that each node server reports.
According to said method of the present invention, also comprise before the described step B:
Described home node server judges whether the endemic species quantum count has reached preset threshold, if the endemic species quantum count does not reach preset threshold, then continues described step B:
If the endemic species quantum count has reached preset threshold, then carry out the following step:
Described home node server returns local seed information to described client;
The local seed information that described client is returned according to described home node server is from corresponding client downloads file fragment.
According to said method of the present invention, also comprise: at network side configuration information swap server;
By the current seed amount of each shared file of each of network side statistics self and report described information exchange server in node server cycle;
Described information exchange server gathers the reporting information of each node server, and is pushed to each node server preservation of network side.
According to said method of the present invention, among the described step B, described home node server returns inquiry seed response message to described client, carries local seed information and has maximum other node server of this seed amount or have the corresponding identification information of several more other node servers of this seed amount.
According to said method of the present invention, described client is according to other node server sign of carrying in the inquiry seed response message, to other node server of correspondence send carry the file in download sign obtain the seed request message;
Described other node server returns local corresponding seed information to described client.
The present invention provides a kind of P2P download system in addition, comprises a plurality of clients, Redirect Server and a plurality of node server; Also include the information exchange server;
Each node server comprises the seed information reporting module, and the current seed amount of each shared file of cycle statistics self also reports described information exchange server;
Described information exchange server gathers the reporting information of each node server, and is pushed to each node server preservation;
After client is logined described Redirect Server, specify the home node server of a node server as this client by described Redirect Server;
Described client sends the inquiry seed request message that carries the file in download sign to the home node server of appointment, and described home node server returns local seed information and has other node server information of this seed to described client;
Described client is obtained corresponding seed information to described other node server, and the seed information that returns according to described home node server and other node server, from corresponding client downloads file fragment.
Described node server also comprises load state statistical report module, and the load state of cycle statistics self also reports described Redirect Server;
Described Redirect Server also comprises the load record update module, stores the present load situation that each node server sign and each node server report; Behind client login Redirect Server, from described load record update module, select the home node server of a node server that present load is the lightest as this client.
Described node server also includes the seed amount comparison module;
Receive the inquiry seed request message of its ownership client transmission when node server after, whether reached preset threshold by described seed amount comparison module comparison endemic species quantum count, if the endemic species quantum count does not reach preset threshold, then return local seed information and have other node server information of this seed to described ownership client;
If the endemic species quantum count has reached preset threshold, then only return local seed information to described client; The local seed information that described client is returned according to described home node server is from corresponding client downloads file fragment.
Beneficial effect of the present invention is as follows:
(1) adopts the inventive method, during the client downloads file, carry the inquiry seed request message of file in download sign to the home node server transmission of appointment; The home node server returns local seed information and has other node server information of network side of this seed; Client is also obtained respective seed information to other node server, and the seed information that returns according to home node server and other node server, from corresponding client downloads file fragment.Therefore, the present invention compared with prior art, not only get access to the local seed information of home node server, also obtain the respective seed information of other node server of network side, thereby increased the seed amount that gets access to, improve the overlapping probability of client, more can carry out data interaction between the multi-client, improved the P2P download efficiency.
(2) adopt the present invention, since each client can with more other client shared resource, can be more from being total to the required file fragment of its client downloads, thereby corresponding data traffic and the bandwidth consumption that has reduced attribution server, the corresponding performance requirement that can reduce network side server is saved network hardware resource and bandwidth resources.
Description of drawings
Fig. 1 is a P2P download system structural representation provided by the invention;
Fig. 2 A, Fig. 2 B are the inventive method specific embodiment flow chart.
Embodiment
Referring to Fig. 1, be P2P download system structural representation provided by the invention.Comprise:
A plurality of clients, a Redirect Server, a plurality of node servers and an information exchange server.
Its operation principle is:
Each node server comprises the seed information reporting module, and the current seed amount of each shared file of cycle statistics self also reports the information exchange server;
The information exchange server gathers the reporting information of each node server, and is pushed to each node server preservation;
Client login Redirect Server is specified the home node server of a node server as this client by Redirect Server; Among Fig. 1 behind the hypothesis client 1 login Redirect Server home node server of appointment be node server 1;
Client sends the inquiry seed request message that carries file in download sign (ID) to the home node server of appointment, and the home node server returns local seed information and has other node server information of this seed to this client; The home node server 1 of expression client 1 returns local seed information and returns the identification information of other node server 2 among Fig. 1;
Client is obtained corresponding seed information to other node server that the home node server returns, as shown in phantom in Figure 1, client 1 is to other node server 2 (non-attribution server) acquisition request seed information, and the seed information that returns according to home node server 1 and other node server 2, from corresponding client downloads file fragment (not shown in figure 1).
Below in conjunction with accompanying drawing, adopt the method for P2P technology file in download to be described in detail to the present invention.
Referring to Fig. 2 A,, comprising for obtaining the concrete steps flow chart of seed amount information in each node server:
The current seed amount of each shared file of the seed information reporting module cycle statistics in step S101, each node server self, and report the information exchange server; For example, the information that reports of node server 1 is as shown in table 1 below:
Table 1
| The shared file sign | Seed amount |
| File 1 | 1000 |
| File 2 | 500 |
The information that node server 2 reports is as shown in table 2 below:
Table 2
| The shared file sign | Seed amount |
| File 1 | 10000 |
| File 2 | 2000 |
The information that node server 3 reports is as shown in table 3 below:
Table 3
| The shared file sign | Seed amount |
| File 1 | 5000 |
| File 2 | 3500 |
The information that node server 4 reports is as shown in table 4 below:
Table 4
| The shared file sign | Seed amount |
| File 1 | 2000 |
| File 2 | 1000 |
Step S102, information exchange server gather the reporting information of each node server, upgrade node server/shared file (or shared resource) and the corresponding seed amount information table stored in the local data base.
As above routine, after the information exchange server gathered the reporting information of node server 1,2,3,4 (supposing that network side has only 4 node servers altogether), the corresponding informance table of generation was as shown in table 5 below:
Table 5
Information table after step S103, information exchange server will upgrade is pushed to each node server.
The information table that step S104, each node server push at local stored information swap server.
Like this, the shared file and the corresponding seed amount information of the whole node servers of network side in each node server, have all been stored.
Fig. 2 A only is a kind of implementation method of obtaining the seed information in each node server, can also adopt other method to obtain seed amount information in each node server, as the mode that adopts each node server to send a notification message mutually, self the seed amount of each shared file (or shared resource) is notified to the opposite end server.Therefore, the concrete mode of in the inventive method how each node server being obtained the seed amount in other node server of network side does not limit.
Fig. 2 B is client login and the flow chart of steps of downloading shared file, comprising:
Step S201, client are logined to Redirect Server.
Step S202, Redirect Server are determined the home node server for this client, and are notified to client.
The load state of the load state statistical report module cycle statistics that comprises in the node server self also reports Redirect Server; Load record update module in the Redirect Server is stored the present load situation that each node server identifies and each node server reports; Behind client login Redirect Server, from the load record update module, select the home node server of a node server that present load is the lightest as this client, be notified to this client, indicate the home node server that client need re-register appointment.
Step S203, client are registered in the home node server.
Step S204, home node server distribute client id for this client, and with this client as self ownership client records in the resource pool of this locality, return the client id of distribution to client.
The client id that step S205, client records are distributed sends the inquiry seed message of carrying client id and file in download ID to the home node server.
Step S206, home node server judge whether the endemic species quantum count reaches preset threshold, if, execution in step S207 then, otherwise, execution in step S209.
In this step S206, receive the inquiry seed request message of its ownership client transmission when node server after, start the seed amount comparison module, relatively whether the endemic species quantum count has reached preset threshold (concrete threshold size can be provided with in advance according to actual conditions) in node server.
Step S207, home node server return inquiry seed response message to client, only carry local seed information; Continue step S208.
The local seed information that step S208, client are returned according to the home node server is from corresponding client downloads file fragment.
Step S209, home node server return local seed information and have other node server information of this seed to client; Continue step S210.
In this step S209, the home node server returns inquiry seed response message to client, not only carry local seed information, also carry the corresponding identification information that has maximum other node server of this seed amount or have several more other node servers of this seed amount.
By Fig. 2 A flow process as can be known, each node server is all preserved the seed amount information of each shared file (or shared resource) in each node server of network side, therefore, shared file (determining) for the download of ownership client-requested by file ID is unique, the home node server can compare this seed amount (being the client terminal quantity of downloading this same shared file in other each node server) that has in other each node server, selection has maximum other node server of this seed amount (can certainly select several more other node servers of seed amount), the corresponding with service device sign of the node server selected is carried by inquiry seed response message, be notified to client.
Step S210, client are obtained corresponding seed information to other node server that the home node server returns, and continue step S211.
In this step S210, client is according to other node server sign of carrying in the inquiry seed response message, the seed request message is obtained in other node server (other node server must be the non-attribution node server of this client) transmission to correspondence, obtain in the seed request message at this, client id is put sky, carry file in download ID; Other node server obtains in the seed request message client id according to this and is empty this feature, judge the inquiry seed request message of the ownership client transmission that is not oneself, not with this client-information records in the local resource pond, and return local corresponding seed information to this client.
The seed information that step S211, client return according to home node server and other node server is from corresponding client downloads file fragment.
In sum, the inventive method compared with prior art, client is not only obtained the local seed information of home node server, also obtain the respective seed information of other node server of network side, thereby increased the seed amount that gets access to, improve the overlapping probability of client, more can carry out data interaction between the multi-client, reached the purpose that improves the P2P download efficiency.
In addition, adopt the present invention, each client can with more other client shared resource, can be more from being total to the required file fragment of its client downloads, thereby corresponding data traffic and the bandwidth consumption that has reduced attribution server, the corresponding performance requirement that can reduce the network side node server is saved the network hardware and bandwidth resources.
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 (10)
1. a method that adopts P2P technology file in download is characterized in that, comprising:
A, client send the inquiry seed request message that carries the file in download sign to the home node server of appointment;
B, described home node server return local seed information and have other node server information of network side of this seed;
C, described client are obtained respective seed information to described other node server, and the seed information that returns according to described home node server and other node server, from corresponding client downloads file fragment.
2. the method for employing P2P technology file in download as claimed in claim 1 is characterized in that, also comprises before the described steps A:
Client login Redirect Server;
Described Redirect Server is specified the home node server of a node server that present load is the lightest as this client, and is notified to this client according to the load state of each node server of network side;
Described client is registered in the home node server of appointment.
3. the method for employing P2P technology file in download as claimed in claim 2 is characterized in that, the load state of each node server cycle statistics of network side self also reports described Redirect Server;
Described Redirect Server writes down the present load situation that each node server reports.
4. the method for employing P2P technology file in download as claimed in claim 2 is characterized in that, also comprises before the described step B:
Described home node server judges whether the endemic species quantum count has reached preset threshold, if the endemic species quantum count does not reach preset threshold, then continues described step B;
If the endemic species quantum count has reached preset threshold, then carry out the following step:
Described home node server returns local seed information to described client;
The local seed information that described client is returned according to described home node server is from corresponding client downloads file fragment.
5. as the method for the described employing of any claim of claim 1-4 P2P technology file in download, it is characterized in that, also comprise: at network side configuration information swap server;
By the current seed amount of each shared file of each of network side statistics self and report described information exchange server in node server cycle;
Described information exchange server gathers the reporting information of each node server, and is pushed to each node server preservation of network side.
6. the method for employing P2P technology file in download as claimed in claim 5, it is characterized in that, among the described step B, described home node server returns inquiry seed response message to described client, carries local seed information and has maximum other node server of this seed amount or have the corresponding identification information of several more other node servers of this seed amount.
7. the method for employing P2P technology file in download as claimed in claim 6, it is characterized in that, described client is according to other node server sign of carrying in the inquiry seed response message, to other node server of correspondence send carry the file in download sign obtain the seed request message;
Described other node server returns local corresponding seed information to described client.
8. a P2P download system comprises a plurality of clients, Redirect Server and a plurality of node server; It is characterized in that, also include the information exchange server;
Each node server comprises the seed information reporting module, and the current seed amount of each shared file of cycle statistics self also reports described information exchange server;
Described information exchange server gathers the reporting information of each node server, and is pushed to each node server preservation;
After client is logined described Redirect Server, specify the home node server of a node server as this client by described Redirect Server;
Described client sends the inquiry seed request message that carries the file in download sign to the home node server of appointment, and described home node server returns local seed information and has other node server information of this seed to described client;
Described client is obtained corresponding seed information to described other node server, and the seed information that returns according to described home node server and other node server, from corresponding client downloads file fragment.
9. P2P download system as claimed in claim 8 is characterized in that, described node server also comprises load state statistical report module, and the load state of cycle statistics self also reports described Redirect Server;
Described Redirect Server also comprises the load record update module, stores the present load situation that each node server sign and each node server report; Behind client login Redirect Server, from described load record update module, select the home node server of a node server that present load is the lightest as this client.
10. P2P download system as claimed in claim 8 or 9 is characterized in that described node server also includes the seed amount comparison module;
Receive the inquiry seed request message of its ownership client transmission when node server after, whether reached preset threshold by described seed amount comparison module comparison endemic species quantum count, if the endemic species quantum count does not reach preset threshold, then return local seed information and have other node server information of this seed to described ownership client;
If the endemic species quantum count has reached preset threshold, then only return local seed information to described client; The local seed information that described client is returned according to described home node server is from corresponding client downloads file fragment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610127645 CN101136911B (en) | 2006-08-31 | 2006-08-31 | Method to download files using P2P technique and P2P download system |
| PCT/CN2007/070584 WO2008025297A1 (en) | 2006-08-31 | 2007-08-29 | A method for downloading files by adopting the p2p technique and a p2p downloading system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610127645 CN101136911B (en) | 2006-08-31 | 2006-08-31 | Method to download files using P2P technique and P2P download system |
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| CN101136911A true CN101136911A (en) | 2008-03-05 |
| CN101136911B CN101136911B (en) | 2010-12-15 |
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| WO (1) | WO2008025297A1 (en) |
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| WO2009143686A1 (en) * | 2008-05-30 | 2009-12-03 | 中兴通讯股份有限公司 | Content distributing method, service redirecting method and system, node device |
| CN101610289A (en) * | 2009-07-21 | 2009-12-23 | 腾讯科技（深圳）有限公司 | The methods, devices and systems of data download and node |
| WO2010069219A1 (en) * | 2008-12-16 | 2010-06-24 | 腾讯科技（深圳）有限公司 | P2p system and seed inquiry method |
| CN102055786A (en) * | 2009-11-06 | 2011-05-11 | 腾讯科技（深圳）有限公司 | File download method and server, download client and system adopting same |
| CN101631141B (en) * | 2009-08-19 | 2012-07-04 | 腾讯科技（深圳）有限公司 | P2P system and network resource management method in same |
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| WO2010069219A1 (en) * | 2008-12-16 | 2010-06-24 | 腾讯科技（深圳）有限公司 | P2p system and seed inquiry method |
| CN101610289A (en) * | 2009-07-21 | 2009-12-23 | 腾讯科技（深圳）有限公司 | The methods, devices and systems of data download and node |
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| CN101662508B (en) * | 2009-09-11 | 2013-04-24 | 华为技术有限公司 | Method for data transmission based on point-to-point protocol, device and system thereof |
| CN102055786B (en) * | 2009-11-06 | 2014-12-24 | 腾讯科技（深圳）有限公司 | File download method and server, download client and system adopting same |
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| CN113364877B (en) * | 2021-06-11 | 2022-10-11 | 北京百度网讯科技有限公司 | Data processing method, device, electronic equipment and medium |
| CN113778673A (en) * | 2021-08-27 | 2021-12-10 | 深圳市广和通无线股份有限公司 | Data processing method, storage medium and device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101136911B (en) | 2010-12-15 |
| WO2008025297A8 (en) | 2009-04-02 |
| WO2008025297A1 (en) | 2008-03-06 |
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