CN102006328A - Peer-to-peer (P2P) streaming media distributed network system and data transmission method thereof - Google Patents
Peer-to-peer (P2P) streaming media distributed network system and data transmission method thereof Download PDFInfo
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Abstract
The invention discloses a peer-to-peer (P2P) streaming media distributed network system and a data transmission method thereof. The system comprises super service nodes, an independent distributed network structure, an information control server and a source list server, wherein the super service nodes are distributed in a netlike form according to operators and regions; one or more super service nodes are deployed in one region; the independent distributed network structure consists of a super service node and the ordinary P2P node in a region to which the super service node belongs; the information control server is used for reading channels and the information of all P2P nodes out of a central server and providing a large scale of file information lists in the distributed network structure to the ordinary P2P node; and the source list server is used for storing the file information list owned by each node of the distributed network structure for information searching.
Description
Technical field
The present invention relates to the network multimedia technology field, particularly relate to stream medium distributed network system of a kind of P2P and data transmission method thereof towards the IPv6 environment.
Background technology
Along with the fast development of Internet and digitizing technique, the P2P technology has obtained extensive use as a kind of digital media content distribution technology.P2P is the abbreviation of English Peer-to-Peer, and " point-to-point " is otherwise known as." point-to-point " technology is a kind of network new technology, be different from traditional C/S structure, the P2P technology makes full use of computing capability and the bandwidth of user in the network, rather than demand for services all accumulated on the less server, the user is when downloading, also for other users provide upload service, this downloading mode, people's multiple speed more is fast more.In general,, have good expandability and robustness, and deployment and maintenance cost are lower along with the increase system service ability of number of users also can strengthen.
Though the P2P technology has numerous advantages than traditional C/S structure, but also there are some problems simultaneously in self: first generation P2P mode network adopts traditional central server control search source client's function mode, under central server control search source client's P2P pattern, the central server bearing pressure is excessive, the speed in user search source is slower, user's program request or when live buffer time longer, the source disappear or switching channels after the client-side program response time longer.Second generation P2P mode network has adopted the pattern of distributed network+central server, distributed network has solved the rapidity in user search source, and alleviated the computing pressure of server, but because video-see is a very activity of bandwidth consumed resource, network to Virtual network operator forms network storm easily, cause network that the possibility of paralysis is arranged, and the source that user search is arrived tabulation, the good user of performance does not obtain preliminary screening, causes client could finally obtain stable user source than length operation time.
Though application number is a kind of notion that has proposed super node based on the P2P live broadcasting method of super node of 200710053429.7, but specifically the notion of " super node+autonomous territory " has not been applied in the Next Generation Internet IPv6 environment, do not adopt the pattern of distributed network+central server yet, the adding of being in charge of node by central server with withdraw from and the distribution of resource etc., carry out concrete content-data transmission by distributed network.Simultaneously, above-mentioned P2P super node method is only applicable to live, and can not be applied in the VOD system.
Summary of the invention
The object of the present invention is to provide stream medium distributed network system of a kind of P2P and data transmission method thereof.Its advantage with the quick retrieval of the coordinated bandwidth ability of distributed network and central server organically combines, and is implemented in the network storm that can not form big data quantity between different operators and the different region; Prevent the not smooth situation of program request that when the resource exhaustion of special time source, causes.
The stream medium distributed network system of a kind of P2P for realizing that purpose of the present invention provides comprises: super service node, common P2P node, information Control server, central server and source listserv, wherein:
Described super service node carries out net distribution by operator and region, and one or more super service node is disposed in an area; The common P2P node in described super service node and affiliated area constitutes an independently distributed network structure;
Described information Control server is used for reading from central server the information of channel and all P2P nodes, and offers fileinfo tabulations large quantities of in the affiliated distributed network structure of described common P2P node;
The source listserv is used for the fileinfo tabulation that each node of distributed storage network configuration has, and uses during for retrieving information.
Form the autonomous area of a P2P between the described super service node, behind channel of a super service node issue, other super service node can obtain the file data of this channel by the P2P principle.
Described system also comprises:
Backup server is used for the backup to described information Control server.
Described common P2P node adds described distributed network structure by described super service node.
For realizing that purpose of the present invention also provides a kind of P2P the data transmission method of stream medium distributed network system, it is characterized in that, comprise the following steps:
After the super service node of step 200. starts, obtain the channel information of local super service node, create corresponding channel from described information Control server;
After step 300.P2P node starts, link described central server and send self profile information according to self profile information, described P2P node obtains the fileinfo tabulation of all issues of central server;
The profile information that the described central server of step 400. is sent according to described P2P node is determined the kind of the ISP service provider of this P2P node operation, IP section and will return to ID number of described P2P node;
The described P2P node of step 500. has program request when action, sends the program request application according to the uncommon Kazakhstan value of the file of program request to central server;
The described central server of step 600. sends the information of the super service node that is positioned at same area for described P2P node according to the position at described P2P node place;
The described P2P node of step 700. is according to the information of described super service node, add and comprise in the distributed network structure of described super service node, carry out exchanges data by retrieval source listserv and other P2P nodes wherein, and be no longer dependent on central server.
Described step 200 comprises the following steps:
The channel list of the channel information initialization oneself that the described super service node basis of step 210. is obtained, and create corresponding channel;
The described super service node of step 220. is according to the position analysis file of program request file on disk array machine, the channel data that establishment itself has.
Form the autonomous area of a P2P between the described super service node, behind channel of a super service node issue, other super service node can obtain the file data of this channel by the P2P principle.
The stream medium distributed network system of described P2P adopts the backup of backup server to described information Control server.
Described common P2P node adds described distributed network structure by described super service node.
The invention has the beneficial effects as follows:
1. the present invention introduces the notion of super service node under the IPv6 environment, can improve the efficient of existing system greatly, reduces the bottleneck of present central server load capacity;
2. the present invention's P2P node of introducing super service node and this area under the IPv6 environment forms the notion of unordered P2P network configuration, in this unordered P2P network configuration, the effect of super service node is equivalent to the effect of traditional central server, add when new P2P node adds fashionable this super service node that passes through, reduced the burden of central server so to the full extent;
3. the present invention introduces the notion in the autonomous territory of super service node under the IPv6 environment, forms an autonomous territory between the super service node, and the mode by P2P exchanges its nodal information mutually, makes the information of all super service nodes all keep synchronous.
Description of drawings
Fig. 1 is the structural representation of the stream medium distributed network system of P2P of the present invention;
Fig. 2 is the flow chart of steps of the data transmission method of the stream medium distributed network system of described P2P of the present invention;
Fig. 3 is that super service node starts the flow chart of steps that corresponding channel is created in the back among the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, stream medium distributed network system of a kind of P2P of the present invention and data transmission method thereof are further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Stream medium distributed network system of a kind of P2P of the present invention and data transmission method thereof, the notion of " super node+autonomous territory " has been applied in the Next Generation Internet IPv6 environment, adopt the pattern of distributed network+central server, the adding of being in charge of node by central server with withdraw from and the distribution of resource etc., carry out concrete content-data transmission by distributed network.The advantage of the quick retrieval of the coordinated bandwidth ability of distributed network and central server is organically combined.Be implemented in the network storm that can not form big data quantity between different operators and the different region; Prevent the not smooth situation of program request that when the resource exhaustion of special time source, causes.
Introduce the stream medium distributed network system of a kind of P2P of the present invention in detail below in conjunction with above-mentioned target, Fig. 1 is the structural representation of the stream medium distributed network system of P2P of the present invention, as shown in Figure 1, described system, comprise: super service node 1, common P2P node 2, information Control server 3 and central server 4 and source listserv 5, wherein:
Described super service node 1 carries out net distribution by operator and region, one or more super service node is disposed in an area (further refinement), and the common P2P node 2 in described super service node and affiliated area constitutes an independently distributed network structure;
In described independently distributed network structure, the effect of super service node is equivalent to the effect of traditional central server, adds when new P2P node adds fashionable this super service node that passes through, and has reduced the burden of central server so to the full extent.
Form the autonomous area of a P2P between the described super service node, behind channel of a super service node issue, other super service node can obtain the file data of this channel by the P2P principle, when having avoided super service node too much, the situation of each super service node data sync difficulty.
As a kind of embodiment, described super service node can be the middle-size and small-size server that operator disposes, and also can be the affiliate's of operator server or the computer that bandwidth is big, disposal ability is strong.
As shown in Figure 1, A customers adhere to different distributed network structure separately with B customers, can not form the network storm of big data quantity like this between different operators and different region.
Described information Control server 3 is used for reading from central server 4 information of channel and all P2P nodes, and offers fileinfo tabulations large quantities of in the affiliated distributed network structure of described common P2P node;
Described information Control server can offer source tabulations large quantities of in the affiliated distributed network structure of common P2P node, prevents at special time the situation that the program request that causes during the resource exhaustion of source is not smooth.
Described information Control server has been grasped the quantity of the super service nodes in each department, IP address, the information of all channels.These transmission of Information amounts are less, can be to the network build-up of pressure of server and operator.
Source listserv 5 is used for the fileinfo tabulation that each node of customers of distributed storage network configuration has, and uses during for retrieving information.
Preferably, described system also comprises:
Backup server 6 is used for the backup to described information Control server.
Because the information Control server plays the effect of brain for whole system, in case working as machine, it will cause whole P2P paralysis, so need a backup server.
Corresponding to the stream medium distributed network system of a kind of P2P of the present invention, a kind of described P2P also is provided the data transmission method of stream medium distributed network system, Fig. 2 is the flow chart of steps of the data transmission method of the stream medium distributed network system of described P2P of the present invention, as shown in Figure 2, described method comprises the following steps:
After the super service node of step 200. starts, obtain the channel information of local super service node, create corresponding channel from described information Control server;
Fig. 3 is that super service node starts the flow chart of steps that corresponding channel is created in the back among the present invention, and as shown in Figure 3, described step 200 comprises the following steps:
The channel list of the channel information initialization oneself that the described super service node basis of step 210. is obtained, and create corresponding channel;
The described super service node of step 220. is according to the position analysis file of program request file on disk array machine, the channel data that establishment itself has.
After step 300.P2P node starts, link described central server and send self profile information according to self profile information, described P2P node obtains the fileinfo tabulation of all issues of central server;
The profile information that the described central server of step 400. is sent according to described P2P node (information such as IP, PORT) is determined the kind of the ISP service provider of this P2P node operation, IP section and will return to ID number of described P2P node;
Described central server can inquire the information and the region, place of ISP service provider according to the IP address by existing special database.
The described P2P node of step 500. has program request when action, sends the program request application according to the uncommon Kazakhstan value of the file of program request to central server;
The described central server of step 600. sends the information of the super service node that is positioned at same area for described P2P node according to the position at described P2P node place;
According to described P2P IP addresses of nodes can judge (such as) in which provinces and cities, central server just provides the super node information of same provinces and cities to described P2P node.
The described P2P node of step 700. is according to the information of described super service node, adds to comprise in the distributed network structure of described super service node, carries out exchanges data with wherein other P2P nodes, and is no longer dependent on central server.
Beneficial effect of the present invention is:
1. the present invention introduces the notion of super service node under the IPv6 environment, can improve the efficient of existing system greatly, reduces the bottleneck of present central server load capacity;
2. the present invention's P2P node of introducing super service node and this area under the IPv6 environment forms the notion of unordered P2P network configuration, in this unordered P2P network configuration, the effect of super service node is equivalent to the effect of traditional central server, add when new P2P node adds fashionable this super service node that passes through, reduced the burden of central server so to the full extent;
3. the present invention introduces the notion in the autonomous territory of super service node under the IPv6 environment, forms an autonomous territory between the super service node, and the mode by P2P exchanges its nodal information mutually, makes the information of all super service nodes all keep synchronous.
In conjunction with the drawings to the description of the specific embodiment of the invention, others of the present invention and feature are conspicuous to those skilled in the art.
More than specific embodiments of the invention are described and illustrate it is exemplary that these embodiment should be considered to it, and be not used in and limit the invention, the present invention should make an explanation according to appended claim.
Claims (9)
1. the stream medium distributed network system of P2P is characterized in that, comprising: super service node, common P2P node, information Control server, central server and source listserv, wherein:
Described super service node carries out net distribution by operator and region, and one or more super service node is disposed in an area; The common P2P node in described super service node and affiliated area constitutes an independently distributed network structure;
Described information Control server is used for reading from central server the information of channel and all P2P nodes, and offers fileinfo tabulations large quantities of in the affiliated distributed network structure of described common P2P node;
The source listserv is used for the fileinfo tabulation that each node of distributed storage network configuration has, and uses during for retrieving information.
2. the stream medium distributed network system of P2P according to claim 1, it is characterized in that, form the autonomous area of a P2P between the described super service node, behind channel of a super service node issue, other super service node can obtain the file data of this channel by the P2P principle.
3. the stream medium distributed network system of P2P according to claim 1 is characterized in that described system also comprises:
Backup server is used for the backup to described information Control server.
4. the stream medium distributed network system of P2P according to claim 1 is characterized in that, described common P2P node adds described distributed network structure by described super service node.
5. the data transmission method of the stream medium distributed network system of P2P is characterized in that, comprises the following steps:
Step 100. information Control server is read the information of the P2P node of channel and all registrations from central data in server storehouse, deposit the local information chained list in;
After the super service node of step 200. starts, obtain the channel information of local super service node, create corresponding channel from described information Control server;
After step 300.P2P node starts, link described central server and send self profile information according to self profile information, described P2P node obtains the fileinfo tabulation of all issues of central server;
The profile information that the described central server of step 400. is sent according to described P2P node is determined the kind of the ISP service provider of this P2P node operation, IP section and will return to ID number of described P2P node;
The described P2P node of step 500. has program request when action, sends the program request application according to the uncommon Kazakhstan value of the file of program request to central server;
The described central server of step 600. sends the information of the super service node that is positioned at same area for described P2P node according to the position at described P2P node place;
The described P2P node of step 700. is according to the information of described super service node, add and comprise in the distributed network structure of described super service node, carry out exchanges data by retrieval source listserv and other P2P nodes wherein, and be no longer dependent on central server.
6. the data transmission method of the stream medium distributed network system of P2P according to claim 5 is characterized in that described step 200 comprises the following steps:
The channel list of the channel information initialization oneself that the described super service node basis of step 210. is obtained, and create corresponding channel;
The described super service node of step 220. is according to the position analysis file of program request file on disk array machine, the channel data that establishment itself has.
7. the data transmission method of the stream medium distributed network system of P2P according to claim 5, it is characterized in that, form the autonomous area of a P2P between the described super service node, behind channel of a super service node issue, other super service node can obtain the file data of this channel by the P2P principle.
8. the data transmission method of the stream medium distributed network system of P2P according to claim 5 is characterized in that, the stream medium distributed network system of described P2P adopts the backup of backup server to described information Control server.
9. the stream medium distributed network system of P2P according to claim 5 is characterized in that, described common P2P node adds described distributed network structure by described super service node.
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| CN105871616A (en) * | 2016-03-31 | 2016-08-17 | 北京奇艺世纪科技有限公司 | Service node selection method and device |
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