CN103581245B - A kind of method and system of content distributing network content distribution - Google Patents
A kind of method and system of content distributing network content distribution Download PDFInfo
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- CN103581245B CN103581245B CN201210267074.2A CN201210267074A CN103581245B CN 103581245 B CN103581245 B CN 103581245B CN 201210267074 A CN201210267074 A CN 201210267074A CN 103581245 B CN103581245 B CN 103581245B
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Abstract
The present invention is suitable for Internet technical field, provide a kind of method and system of content distributing network content distribution, the content distributing network CDN includes CDN data source servers and multiple CDN nodes, Peer-to-Peer Network P2P agreement, the CDN node reception content distribution instruction are performed between the multiple CDN node;The CDN node obtains from the CDN data source servers or other CDN nodes and instructs relevant data file with the content distribution, for client downloads.The burden of CDN data source servers can effectively be mitigated by the present invention, reduce the bandwidth pressure of CDN data source servers, improve the efficiency and quality of content distribution.
Description
Technical field
The invention belongs to Internet technical field more particularly to a kind of content distributing network content distribution method and be
System.
Background technology
Content distributing network（Content Delivery Network, CDN）Technology be it is a kind of by content from center service
Device is distributed to the Edge Server close to user, so as to fulfill the distributed method accessed nearby of content.CDN technologies are effectively
The service quality of access to content is improved, and supports large-scale concurrent access ability.
With the service centered on content, such as Web service, streaming media service, file download service, IPTV service etc.
The mainstream of the Internet, applications is increasingly becomed, based on the original IP network in internet, builds relatively independent, unrelated interior of business
Hold the trend that bearer network becomes internet development.
However, existing CDN network in independent content construction bearer network there are it is certain the problem of, as shown in Figure 1, existing
Some CDN are sent to CDN node by management server Scheduling content logic Distributor and distributed when carrying out content distribution
Instruction, the CDN node are unified that the number for needing to distribute is downloaded to CDN data source servers after the distribution instruction is received
According to.Client where user finds CDN node nearby by local dns parsing, and being downloaded from the CDN node nearby needs
Data, if certainly the CDN node nearby can not download, can also be downloaded from CDN data source servers, but download
Efficiency is typically what can not be ensured.
Existing CDN excessively relies on CDN data source servers, causes CDN data source servers when carrying out content distribution
Over-burden, and bandwidth pressure is larger and CDN node autgmentability is poor.Especially in the case of inter-network, the unimpeded of link is difficult to
To guarantee, the success rate of CDN node content distribution is relatively low, and it is asynchronous or take a long time sometimes to will appear distribution data
The problem of could synchronizing.
Invention content
The embodiment of the present invention is designed to provide a kind of method of content distributing network content distribution, to solve existing skill
Art excessively relies on CDN data source servers, and causing poor expandability, CDN data source servers, over-burden and bandwidth pressure
The problems such as larger.
The embodiment of the present invention is achieved in that a kind of method of content distributing network content distribution, the content distribution
Network includes content distributing network data source server and multiple content delivery network nodes, the multiple content distributing network
Peer-to-Peer Network P2P agreement is performed between node,
The content delivery network node reception content distribution instruction;
The content delivery network node distributes net from the content distributing network data source server or other content
Network node is obtained instructs relevant data file with the content distribution, for client downloads.
A kind of method of content distributing network content distribution, the content distributing network include inquiry access server and patrol
Collect application server,
The data file information that the inquiry access server reception content distribution network node reports, by data text
Part information and corresponding content delivery network node information are stored to preset information table, and described information table is synchronized to institute
Logic application server is stated, the data file information includes the unique identifier of data file；
What the inquiry access server reception content distribution network node was sent instructs relevant data with content distribution
File acquisition solicited message carries the unique identifier of the data file in the solicited message, and the request is believed
Breath is transmitted to the Logic application server, so that the Logic application server is according to the data file unique mark
Symbol, inquire described information table in content delivery network node information corresponding with the data file unique identifier, and with
The corresponding content delivery network node information of the data file unique identifier there are it is multiple when, according to preset alternative condition
A content delivery network node information is selected from the multiple content delivery network node information, by selected content point
Hair network node information is sent to the content delivery network node of the transmission data file acquisition solicited message, the content point
The content delivery network node information that hair network node is returned according to the Logic application server, from corresponding content delivery network
Network node is obtained instructs relevant data file with the content distribution.
A kind of method of content distributing network content distribution, the content distributing network include inquiry access server and patrol
Collect application server,
The Logic application server receives the information table that the inquiry access server synchronizes, and is stored in described information table
There is data file information and correspond to the information for the content delivery network node for reporting the data file information, the data text
Part information includes the unique identifier of data file；
The Logic application server receives the content delivery network node of the inquiry access server forwarding
Data file obtains solicited message, the unique identifier of the data file is carried in the solicited message, according to the number
According to file unique identifier, content distributing network section corresponding with the data file unique identifier in described information table is inquired
Point information, and content delivery network node information corresponding with the data file unique identifier there are it is multiple when, according to
Preset alternative condition selects a content delivery network node information from the multiple content delivery network node information, will
Selected content delivery network node information is sent to the content distributing network of the transmission data file acquisition solicited message
Node, so that the content delivery network node is believed according to the content delivery network node that the Logic application server returns
Breath obtains from corresponding content delivery network node and instructs relevant data file with content distribution.
The another object of the embodiment of the present invention is to provide a kind of content delivery network node, the content distributing network section
Point includes：
Instruction reception unit is distributed for reception content and is instructed;
Data capture unit, for being obtained from content distributing network data source server or other content distribution network node
The content distribution received with described instruction receiving unit is taken to instruct relevant data file, for client downloads.
A kind of server, the server include:
For the data file information that reception content distribution network node reports, the data file is believed for synchronization unit
Breath and corresponding content delivery network node information are stored to preset information table, and described information table is synchronized to logic and is answered
With server, the data file information includes the unique identifier of data file；
First processing units, what is sent for reception content distribution network node instructs relevant data text with content distribution
Part obtains solicited message, carries the unique identifier of the data file in the solicited message, and by the solicited message
The Logic application server is transmitted to, so that the Logic application server is according to the data file unique identifier,
Inquire described information table in content delivery network node information corresponding with the data file unique identifier, and with it is described
The corresponding content delivery network node information of data file unique identifier there are it is multiple when, according to preset alternative condition from institute
One content delivery network node information of selection in multiple content delivery network node information is stated, by selected content delivery network
Network nodal information is sent to the content delivery network node of the transmission data file acquisition solicited message, the content delivery network
The content delivery network node information that network node is returned according to the Logic application server, from corresponding content distributing network section
Point is obtained instructs relevant data file with the content distribution.
A kind of server, the server include:
For receiving the information table that inquiry access server synchronizes, number is stored in described information table for information receiving unit
The information of the content delivery network node of the data file information, the data file letter are reported according to fileinfo and correspondence
Breath includes the unique identifier of data file；
Processing unit, the data file for receiving the content delivery network node of inquiry access server forwarding obtain
Solicited message is taken, the unique identifier of the data file is carried in the solicited message, it is unique according to the data file
Identifier inquires content delivery network node information corresponding with the data file unique identifier in described information table, and
Content delivery network node information corresponding with the data file unique identifier there are it is multiple when, according to preset selection
Condition selects a content delivery network node information from the multiple content delivery network node information, will be selected interior
Content distributing network nodal information is sent to the content delivery network node of the transmission data file acquisition solicited message, so that
The content delivery network node information that the content delivery network node is returned according to the server, from corresponding content delivery network
Network node is obtained instructs relevant data file with content distribution.
Existing advantageous effect is the embodiment of the present invention compared with prior art：The embodiment of the present invention is between CDN node
Peer-to-Peer Network P2P agreement is performed, the mixed serve of CDN and P2P is realized in CDN Autonomous Domains so that in content distribution procedure
In, CDN node can obtain from CDN data source servers or other CDN nodes and instruct relevant data text with content distribution
Part so as to effectively mitigate the burden of CDN data source servers, reduces the bandwidth pressure of CDN data source servers, reduces system
Response time promotes the efficiency and quality of content distribution.The scalability feature that P2P is utilized again simultaneously improves CDN node
Can service ability.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the schematic diagram of a scenario for the content distributing network content distribution system that the prior art provides；
Fig. 2 is the schematic diagram of a scenario for the content distributing network content distribution system that first embodiment of the invention provides；
Fig. 3 is the realization flow chart for the content distributing network content distribution method that second embodiment of the invention provides；
Fig. 4 is the realization flow chart for the content distributing network content distribution method that third embodiment of the invention provides；
Fig. 5 is the realization flow chart for the content distributing network content distribution method that fourth embodiment of the invention provides；
Fig. 6 is the composition structure chart for the content delivery network node that fifth embodiment of the invention provides；
Fig. 7 is the composition structure chart for the server that sixth embodiment of the invention provides；
Fig. 8 is the composition structure chart for the server that seventh embodiment of the invention provides.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Embodiment one：
Fig. 2 shows the system fields that the content distributing network content distribution method that first embodiment of the invention provides is applicable in
Scape schematic diagram for convenience of description, illustrates only part related to the present embodiment.
The content distributing network content distribution system includes management server 1, content distribution logical server 2, CDN data
Source server 3, multiple CDN nodes 4（Such as CDN-1, CDN-2 ..., CDN-n）, CDN distribution statistical servers 5 and client 6.
The management server 1, content distribution logical server 2, CDN data source servers 3, multiple CDN nodes 4, CDN distribution statistics
It is communicated between server 5 and client 6 by network connection.
Wherein, it can also be client that the CDN node 4, which can be server, the management server 1, content distribution
Logical server 2, CDN data source servers 3 and CDN distribution statistical servers 5 can be a single servers, also may be used
With for the server end collectively constituted by several function servers.
The client can be the arbitrary terminal device with network access facility, including but not limited to mobile phone, IPAD,
Laptop etc..
The registrar server 1 is used to store the result information of each 4 content distribution of CDN node, so that user inquires；It adjusts
Raw data file is uploaded to CDN data source servers 3 by degree content distribution logical server 2；Determine CDN data source servers
Quantity etc. of 3 data files distribution, Suitable content distribution policy, such as increase the node of data file distribution or increase or
Reduce data file of certain node etc..
The content distribution logical server 2 is used to upload the initial data text for needing to distribute to CDN data source servers 3
Part, such as film, picture etc.；The scheduling strategy of management server 1 is received, such as distributes data file to which CDN node 4,
Which specific data file etc. distributed；The original address of distributed tasks is provided to CDN node 4（Namely corresponding CDN data
The address of source server 3）The data needed are obtained for CDN node 4.
The CDN data source servers 3 are used for the raw data file that reception content distribution logic server 2 uploads, with
Each CDN node 4 is downloaded or is distributed to for each CDN node 4.
The CDN distributions statistical server 5 is used to receive the information during data file acquisition of the feedback of CDN node 4, including
The information such as speed, time and the data file size that data file obtains；Each 4 feedack of CDN node is analyzed,
And analysis result is sent to management server 1, so that user inquires and formulates content distribution policy etc..
The client 6 is used to obtain the data text needed from CDN node 4 nearby or CDN data source servers 3
Part.
Preferably, Peer-to-Peer Network P2P agreement, the CDN are performed between multiple CDN nodes 4 described in the present embodiment
Node 4 for reception content distribution logic server 2 send content distribution instruction, from CDN data source servers 3 or other
CDN node 4 is obtained instructs relevant data file with the content distribution, so that client 6 is downloaded.
Preferably, in order to reduce the pressure of CDN data source servers, the CDN node 4 is obtaining and the content point
During the relevant data file that sends instructions, preferentially obtained from other CDN nodes.
Preferably, which further includes inquiry access（TrackerConn）Server 7
And Logic application（TrackerApp）Server 8,
The inquiry access server 7 receives the data file information that reports of CDN node, by the data file information with
And corresponding CDN node information is stored to preset information table, and described information table is synchronized to the Logic application server
8, the information of data file that the data file information has been obtained or obtained for the CDN node, the data file
Information includes the unique identifier of data file and the size of data file, and the information of the CDN node includes IP address, end
The state of slogan and CDN node；
The inquiry access server 7 receives being obtained with the relevant data file of content distribution instruction for the transmission of CDN node 4
Solicited message carries the unique identifier of the data file, and the solicited message is transmitted in the solicited message
The Logic application server 8.
Preferably, the inquiry access server 7 receives and processes the CDN node addition, modification and deletes number
According to the request of file；The state of the CDN node of reported data fileinfo is monitored, and according to the CDN node monitored
The state of the CDN node that updates storage of state.
The Logic application server 8 receives the information table that the inquiry access server 7 synchronizes, and is deposited in described information table
It contains data file information and corresponds to the information for the CDN node for reporting the data file information, the data file information
The information for the data file for having obtained or having obtained for the CDN node, the data file information include data file
The size of unique identifier and data file, the information of the CDN node include IP address, port numbers and CDN node
State；
The Logic application server 8 receives the data file of the CDN node that the inquiry access server 7 forwards
Solicited message is obtained, the unique identifier of the data file is carried in the solicited message, according to the data file only
One identifier, inquire described information table in CDN node information corresponding with the data file unique identifier, and with it is described
The corresponding CDN node information of data file unique identifier there are it is multiple when, according to preset alternative condition from the multiple CDN
A CDN node information is selected in nodal information, selected CDN node information is sent out by the inquiry access server 7
Give the CDN node of the transmission data file acquisition solicited message.
The CDN node 4 gives the information reporting of data file for having obtained or having obtained to the inquiry access service
Device 7.
Preferably, the CDN node 4 obtains from other CDN nodes and instructs relevant data text with the content distribution
Part specifically includes：
The CDN node 4 sends to the inquiry access server 7 and instructs relevant data file with the content distribution
Solicited message is obtained, the unique identifier of the data file is carried in the solicited message, so that the inquiry access
The solicited message for carrying the data file unique identifier is transmitted to the Logic application server 8 by server 7, described
Logic application server 8 is inquired unique with the data file in described information table according to the data file unique identifier
The corresponding CDN node information of identifier, and there are multiple in CDN node information corresponding with the data file unique identifier
When, a CDN node information is selected from the multiple CDN node information according to preset alternative condition, by selected CDN
Nodal information is sent to the CDN node 4 of the transmission data file acquisition solicited message；
The CDN node information that the CDN node 4 is returned according to the Logic application server 8, from corresponding CDN node 4
It obtains and instructs relevant data file with the content distribution.
Wherein, the alternative condition includes the nearest CDN node of logical reach and/or physical distance.
The present embodiment by between CDN node perform Peer-to-Peer Network P2P agreement, in CDN Autonomous Domains realize CDN and
The mixed serve of P2P so that CDN node can be obtained preferentially from other neighbouring CDN nodes, be subtracted when obtaining data file
The burden of light CDN data source servers promotes the efficiency of content distribution.Such as in streaming media on demand in application, several CDN are neighbouring
Node can be according to certain rule（Such as data file fragmentation number size or CDN node number size）Respectively cache different stream matchmakers
Volume data, if the stream medium data of the client request viewing B node caching of A node serves, A nodes can be by P2P side
Formula directly acquires the stream medium data of B node caching so that user watches so that the client do not need to again to B node or
Person CDN data source servers obtain the stream medium data, mitigate the burden of CDN data source servers, promote content distribution
Efficiency and quality.
System scenarios provided in this embodiment are served only for explaining the present invention, do not limit protection scope of the present invention.
Embodiment two：
Fig. 3 shows the realization flow for the content distributing network content distribution method that second embodiment of the invention provides, institute
It states content distributing network CDN and includes CDN data source servers and multiple CDN nodes, perform between the multiple CDN node pair
Network P 2 Ps agreement is waited, the executive agent of the present embodiment flow is the CDN node 4 in Fig. 1, realizes that details are as follows for flow：
In step S301, reception content distribution instruction.
In the present embodiment, the content distribution instruction that CDN node reception content distribution logic server is sent, the content
The original address that the data file comprising distribution and the data file obtain in distribution instruction（Correspond to CDN data sources clothes
The address of business device）Etc. information.
In step s 302, it obtains from the CDN data source servers or other CDN nodes and refers to the content distribution
Relevant data file is enabled, for client downloads.
Preferably, the CDN node is when obtaining with the content distribution relevant data file of instruction, preferentially from it
He obtains CDN node.
Preferably, the CDN further includes inquiry access server and Logic application server,
The CDN node gives the information reporting of data file for having obtained or having obtained to the inquiry access service
Device, so that the inquiry access server stores the data file information and corresponding CDN node information to default
Information table, and described information table is synchronized to the Logic application server, the information of the data file includes data text
The unique identifier of part and the size of data file, the information of the CDN node include IP address, port numbers and CDN sections
The state of point.
The CDN node is obtained from other CDN nodes instructs relevant data file to specifically include with the content distribution：
The CDN node is sent to the inquiry access server instructs relevant data file to obtain with the content distribution
Solicited message is taken, the unique identifier of the data file is carried in the solicited message, so that the inquiry access clothes
The solicited message for carrying the data file unique identifier is transmitted to the Logic application server, the logic by business device
Application server according to the data file unique identifier, inquire in described information table with the data file unique identifier
Corresponding CDN node information, and CDN node information corresponding with the data file unique identifier there are it is multiple when, root
A CDN node information is selected from the multiple CDN node information according to preset alternative condition, by selected CDN node
Information is sent to the CDN node of the transmission data file acquisition solicited message by the inquiry access server；
The CDN node information that the CDN node is returned according to the Logic application server, is obtained from corresponding CDN node
It takes and instructs relevant data file with the content distribution.
Wherein, the alternative condition includes but not limited to logical reach and/or the nearest CDN node of physical distance.Such as
In practical applications, the corresponding geographical location information of IP address and operator's letter can be obtained by parsing the IP address of CDN node
Breath, CDN node information corresponding with the data file unique identifier there are it is multiple when, preferential selection has identical operation
Quotient（Logical reach is near）CDN node, areal is in reselection same operator（Physical distance is near）CDN node.
The present embodiment can not only mitigate the burden of CDN data source servers, promote the efficiency of content distribution.And due to
Preferential CDN node of the selection with same operator, in the case of can solving inter-network, the unimpeded of link is difficult to be protected, CDN
The problem of success rate of node content distribution is relatively low.
Embodiment three：
Fig. 4 shows the realization flow for the content distributing network content distribution method that third embodiment of the invention provides, institute
It states content distributing network CDN and includes CDN data source servers and multiple CDN nodes, perform between the multiple CDN node pair
Network P 2 Ps agreement is waited, the executive agent of the present embodiment flow is the inquiry access server 7 in Fig. 1, realizes that flow is described in detail such as
Under：
In step S401, the data file information that CDN node reports is received, by the data file information and correspondence
CDN node information store to preset information table, and described information table is synchronized to the Logic application server.
In the present embodiment, the data file information is the data file that the CDN node has been obtained or obtained
Information, the data file information includes but not limited to the unique identifier of data file and the size of data file, institute
The information for stating CDN node includes but not limited to the state of IP address, port numbers and CDN node, the state of the CDN node.
In step S402, receive CDN node transmission instructs relevant data file to obtain request letter with content distribution
It ceases, the unique identifier of the data file is carried in the solicited message, and the solicited message is transmitted to described patrol
Application server is collected, so that the Logic application server inquires described information according to the data file unique identifier
CDN node information corresponding with the data file unique identifier in table, and with the data file unique identifier pair
The CDN node information answered there are it is multiple when, one is selected from the multiple CDN node information according to preset alternative condition
Selected CDN node information is sent to the CDN node of the transmission data file acquisition solicited message by CDN node information,
The CDN node information that the CDN node is returned according to the Logic application server, from corresponding CDN node obtain with it is described
Content distribution instructs relevant data file.
Preferably, this implementation further includes：
It receives and processes the CDN node addition, modification and deletes the requests such as data file；And
The state of the CDN node of reported data fileinfo is monitored, and according to the state of the CDN node monitored
The state of the CDN node updated storage.
It should be noted that the present embodiment is being added the CDN node, is changing, deleting data file and more
After the processing such as new CDN node state, need treated synchronizing information to Logic application server.
Example IV：
Fig. 5 shows the realization flow for the content distributing network content distribution method that fourth embodiment of the invention provides, institute
It states content distributing network CDN and includes CDN data source servers and multiple CDN nodes, perform between the multiple CDN node pair
Network P 2 Ps agreement is waited, the executive agent of the present embodiment flow is the Logic application server 8 in Fig. 1, realizes that flow is described in detail such as
Under：
In step S501, the information table that the inquiry access server synchronizes is received, number is stored in described information table
The information of the CDN node of the data file information is reported according to fileinfo and correspondence, the data file information includes number
According to the unique identifier of file.
In the present embodiment, the data file information content delivery network node has been obtained or has been obtained
The information of data file；The data file information further includes size of data file etc.；The content delivery network node
Information includes but not limited to the state of IP address, port numbers and content delivery network node.
In step S502, the data file acquisition for receiving the CDN node of the inquiry access server forwarding please
Information is sought, the unique identifier of the data file is carried in the solicited message, according to the data file unique mark
Symbol inquires CDN node information corresponding with the data file unique identifier in described information table, and literary with the data
The corresponding CDN node information of part unique identifier there are it is multiple when, believed according to preset alternative condition from the multiple CDN node
A CDN node information is selected in breath, selected CDN node information is sent to by the inquiry access server described
The CDN node of transmission data file acquisition solicited message, so that the CDN node is returned according to the Logic application server
CDN node information, obtained from corresponding CDN node and instruct relevant data file with content distribution.
Wherein, the alternative condition includes but not limited to logical reach and/or the nearest CDN node of physical distance.
Embodiment five：
Fig. 6 shows the composition structure of the content delivery network node of the embodiment of the present invention five, for convenience of description, only shows
Go out and the relevant part of the embodiment of the present invention.
The content delivery network node 4 can be applied in content distributing network content distribution system as shown in Figure 1, this is interior
Content distributing network node 4 includes instruction reception unit 41 and data capture unit 42, and the concrete function of each unit is as follows：
Instruction reception unit 41 is distributed for reception content and is instructed;
Data capture unit 42 receives for being obtained from CDN data source servers or other CDN nodes with described instruction
The content distribution that unit 41 receives instructs relevant data file, for client downloads.
Further,
The data capture unit 42 is when obtaining with the content distribution relevant data file of instruction, preferentially from other
CDN node obtains.
Further, the content delivery network node further includes：
Information reporting unit 43, the information reporting of data file for will obtain or obtained give inquiry access clothes
Business device, so that the inquiry access server stores the data file information and corresponding CDN node information to pre-
If information table, and described information table is synchronized to Logic application server, the information of the data file includes data file
Unique identifier.
In the present embodiment, the data file information further includes size of data file etc.；The content distributing network
The information of node includes but not limited to the state of IP address, port numbers and content delivery network node.
Further, the data capture unit 42 includes：
Information sending module 421, it is relevant with content distribution instruction for being sent to the inquiry access server
Data file obtains solicited message, the unique identifier of the data file is carried in the solicited message, so that described
The solicited message for carrying the data file unique identifier is transmitted to the Logic application service by inquiry access server
Device, the Logic application server are inquired literary with the data in described information table according to the data file unique identifier
The corresponding CDN node information of part unique identifier, and deposited in CDN node information corresponding with the data file unique identifier
When multiple, a CDN node information is selected from the multiple CDN node information according to preset alternative condition, by selected by
The CDN node information selected is sent to the CDN node of the transmission data file acquisition solicited message；
Data acquisition module 422, for the CDN node information returned according to the Logic application server, from corresponding
CDN node is obtained instructs relevant data file with the content distribution.
In the present embodiment, the alternative condition include but not limited to logical reach and/or physical distance it is nearest CDN section
Point.
Content delivery network node provided in this embodiment can be used in aforementioned corresponding content distributing network distribution
Appearance method, details are referring to the associated description of the above distribution network distribution content and method embodiment two, and details are not described herein.
Embodiment six：
Fig. 7 shows the composition structure of the server of the embodiment of the present invention six, for convenience of description, illustrates only and this hair
The bright relevant part of embodiment.
The server 7 can be applied in content distributing network content distribution system as shown in Figure 1, which includes
Synchronization unit 71 and first processing units 72, the concrete function of each unit are as follows：
Synchronization unit 71, for receiving the data file information that CDN node reports, by the data file information and right
The CDN node information answered is stored to preset information table, and described information table is synchronized to Logic application server, the data
Fileinfo includes the unique identifier of data file；
In the present embodiment, the data file information content delivery network node has been obtained or has been obtained
The information of data file；The data file information further includes size of data file etc.；The content delivery network node
Information includes but not limited to the state of IP address, port numbers and content delivery network node.
First processing units 72, for receiving being obtained with the relevant data file of content distribution instruction for CDN node transmission
Solicited message carries the unique identifier of the data file, and the solicited message is transmitted in the solicited message
The Logic application server, so that the Logic application server inquires institute according to the data file unique identifier
CDN node information corresponding with the data file unique identifier in information table is stated, and is uniquely marked with the data file
Know accord with corresponding CDN node information there are it is multiple when, selected from the multiple CDN node information according to preset alternative condition
Selected CDN node information is sent to the CDN of the transmission data file acquisition solicited message by one CDN node information
Node, the CDN node information that the CDN node is returned according to the Logic application server, from corresponding CDN node obtain with
The content distribution instructs relevant data file.
Further,
The server 7 further includes：
Second processing unit 73, for receiving and processing the CDN node addition, modification and deleting asking for data file
It asks；
Third processing unit 74, for monitoring the state of the CDN node of reported data fileinfo, and according to monitoring
The CDN node the state of the CDN node that updates storage of state.
Server provided in this embodiment can be used in aforementioned corresponding content distributing network distribution content and method, details
Referring to the associated description of the above distribution network distribution content and method embodiment three, details are not described herein.
Embodiment seven：
Fig. 8 shows the composition structure of the server of the embodiment of the present invention seven, for convenience of description, illustrates only and this hair
The bright relevant part of embodiment.
The server 8 can be applied in content distributing network content distribution system as shown in Figure 1, which includes
Information receiving unit 81 and processing unit 82, the concrete function of each unit are as follows：
Information receiving unit 81 for receiving the information table that inquiry access server synchronizes, is stored in described information table
Data file information and the information for corresponding to the CDN node for reporting the data file information, the data file information include
The unique identifier of data file；
In the present embodiment, the data file information content delivery network node has been obtained or has been obtained
The information of data file；The data file information further includes size of data file etc.；The content delivery network node
Information includes but not limited to the state of IP address, port numbers and content delivery network node.
Processing unit 82, the data file for receiving the CDN node of inquiry access server forwarding obtain request
Information carries the unique identifier of the data file in the solicited message, according to the data file unique identifier,
Inquire described information table in CDN node information corresponding with the data file unique identifier, and with the data file
The corresponding CDN node information of unique identifier there are it is multiple when, according to preset alternative condition from the multiple CDN node information
One CDN node information of middle selection, the transmission data file acquisition solicited message is sent to by selected CDN node information
CDN node so that the CDN node information that the CDN node is returned according to the server, obtained from corresponding CDN node
Relevant data file is instructed with content distribution.
Wherein, the alternative condition includes but not limited to logical reach and/or the nearest CDN node of physical distance.
Server provided in this embodiment can be used in aforementioned corresponding content distributing network distribution content and method, details
Referring to the associated description of the above distribution network distribution content and method example IV, details are not described herein.
It will be appreciated by those skilled in the art that it is according to work(for each unit, the module described in above-described embodiment five to seven
Energy logic is divided, but be not limited to above-mentioned division, as long as corresponding function can be realized；In addition, each work(
Can unit, module specific name also only to facilitate mutually distinguish, the protection domain being not intended to restrict the invention.
In conclusion the embodiment of the present invention performs Peer-to-Peer Network P2P agreement between CDN node, it is real in CDN Autonomous Domains
The mixed serve of existing CDN and P2P so that in content distribution procedure, CDN node can from CDN data source servers or
Other CDN nodes are obtained instructs relevant data file with content distribution, so as to effectively mitigate the negative of CDN data source servers
Load reduces the bandwidth pressure of CDN data source servers, reduces the response time of system, promotes the efficiency and quality of content distribution.
What the scalability feature that P2P is utilized again simultaneously improved CDN node can service ability.And due to preferentially selecting with phase
With the CDN node of operator, in the case of can solving inter-network, the unimpeded of link is difficult to be protected, CDN node content distribution
The problem of success rate is relatively low.
Those of ordinary skill in the art are further appreciated that all or part of the steps of the method in the foregoing embodiments are can
It is completed with instructing relevant hardware by program, the program can be stored in a computer read/write memory medium
In, the storage medium, including ROM/RAM, disk, CD etc..
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Several equivalent substitute or obvious modifications are made under the premise of not departing from present inventive concept, and performance or use is identical, all should
It is considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (20)
1. a kind of method of content distributing network content distribution, the content distributing network takes including content distributing network data source
Business device and multiple content delivery network nodes, which is characterized in that perform equity between the multiple content delivery network node
Network P 2 P agreement,
The content delivery network node reception content distribution instruction；
The content delivery network node is from the content distributing network data source server or other content distribution network section
Point is obtained instructs relevant data file with the content distribution, for client downloads；
The content distributing network further includes inquiry access server and Logic application server, the content delivery network node
By the information reporting of data file for having obtained or having obtained to the inquiry access server, so that the inquiry access
Server stores the data file information and corresponding content delivery network node information to preset information table, and will
Described information table is synchronized to the Logic application server, and the information of the data file includes the unique identifier of data file
And the size of data file, the information of the content delivery network node include IP address, port numbers and content delivery network
The state of network node.
2. the method as described in claim 1, which is characterized in that the content delivery network node is obtaining and the content point
During the relevant data file that sends instructions, preferentially obtained from other content distribution network node.
3. the method as described in claim 1, which is characterized in that the content delivery network node is from other content distribution network
Node is obtained instructs relevant data file to specifically include with the content distribution：
The content delivery network node sends to the inquiry access server and instructs relevant data with the content distribution
File acquisition solicited message carries the unique identifier of the data file in the solicited message, so that the inquiry
The solicited message for carrying the data file unique identifier is transmitted to the Logic application server, institute by access server
Logic application server is stated according to the data file unique identifier, is inquired unique with the data file in described information table
The corresponding content delivery network node information of identifier, and in content delivery network corresponding with the data file unique identifier
Network nodal information there are it is multiple when, select one from the multiple content delivery network node information according to preset alternative condition
Selected content delivery network node information is sent to the transmission data file and obtained by a content delivery network node information
Take the content delivery network node of solicited message；
The content delivery network node information that the content delivery network node is returned according to the Logic application server, from right
The content delivery network node answered is obtained instructs relevant data file with the content distribution.
4. method as claimed in claim 3, which is characterized in that the alternative condition includes logical reach and/or physical distance
Nearest content delivery network node.
A kind of 5. method of content distributing network content distribution, which is characterized in that the content distributing network includes inquiry and accesses
Server and Logic application server,
The data file information that the inquiry access server reception content distribution network node reports, the data file is believed
Breath and corresponding content delivery network node information are stored to preset information table, and described information table is synchronized to described patrol
Application server is collected, the data file information includes the unique identifier of data file；
What the inquiry access server reception content distribution network node was sent instructs relevant data file with content distribution
Solicited message is obtained, the unique identifier of the data file is carried in the solicited message, and the solicited message is turned
The Logic application server is issued, so that the Logic application server is looked into according to the data file unique identifier
Ask described information table in content delivery network node information corresponding with the data file unique identifier, and with the number
According to the corresponding content delivery network node information of file unique identifier there are it is multiple when, according to preset alternative condition from described
A content delivery network node information is selected in multiple content delivery network node information, by selected content distributing network
Nodal information is sent to the content delivery network node of the transmission data file acquisition solicited message, the content distributing network
The content delivery network node information that node is returned according to the Logic application server, from corresponding content delivery network node
It obtains and instructs relevant data file with the content distribution.
6. method as claimed in claim 5, which is characterized in that the method further includes：
The inquiry access server receives and processes the content delivery network node addition, modification and deletes data file
Request；
The inquiry access server monitors the state of the content delivery network node of reported data fileinfo, and according to prison
The state of the content delivery network node that the state of the content delivery network node measured updates storage.
7. such as method described in claim 5 or 6, which is characterized in that the data file information is the content distributing network
The information for the data file that node has been obtained or obtained；The data file information further includes the size of data file；Institute
The information for stating content delivery network node includes the state of IP address, port numbers and content delivery network node.
A kind of 8. method of content distributing network content distribution, which is characterized in that the content distributing network includes inquiry and accesses
Server and Logic application server,
The Logic application server receives the information table that the inquiry access server synchronizes, and number is stored in described information table
The information of the content delivery network node of the data file information, the data file letter are reported according to fileinfo and correspondence
Breath includes the unique identifier of data file；
The Logic application server receives the data of the content delivery network node of the inquiry access server forwarding
File acquisition solicited message carries the unique identifier of the data file in the solicited message, according to data text
Part unique identifier inquires content delivery network node letter corresponding with the data file unique identifier in described information table
Breath, and content delivery network node information corresponding with the data file unique identifier there are it is multiple when, according to default
Alternative condition select a content delivery network node information from the multiple content delivery network node information, will selected by
The content delivery network node information selected is sent to the content delivery network node of the transmission data file acquisition solicited message,
So that the content delivery network node information that the content delivery network node is returned according to the Logic application server, from
Corresponding content delivery network node is obtained instructs relevant data file with content distribution.
9. method as claimed in claim 8, which is characterized in that the alternative condition includes logical reach and/or physical distance
Nearest content delivery network node.
10. method as claimed in claim 8 or 9, which is characterized in that the data file information is the content distributing network
The information for the data file that node has been obtained or obtained；The data file information further includes the size of data file；Institute
The information for stating content delivery network node includes the state of IP address, port numbers and content delivery network node.
11. a kind of content delivery network node, which is characterized in that the content delivery network node includes：
Instruction reception unit is distributed for reception content and is instructed；
Data capture unit, for from content distributing network data source server or other content distribution network node obtain with
The content distribution that described instruction receiving unit receives instructs relevant data file, for client downloads；
The content delivery network node further includes：
Information reporting unit, the information reporting of data file for will obtain or obtained give inquiry access server,
So that the inquiry access server stores the data file information and corresponding content delivery network node information
Logic application server is synchronized to preset information table, and by described information table, the information of the data file includes data
The unique identifier of file and the size of data file, the information of the content delivery network node include IP address, port
Number and content delivery network node state.
12. content delivery network node as claimed in claim 11, which is characterized in that the data capture unit obtain with
When the content distribution instructs relevant data file, preferentially obtained from other content distribution network node.
13. content delivery network node as claimed in claim 11, which is characterized in that the data capture unit includes：
Information sending module instructs relevant data file for being sent to the inquiry access server with the content distribution
Solicited message is obtained, the unique identifier of the data file is carried in the solicited message, so that the inquiry access
The solicited message for carrying the data file unique identifier is transmitted to the Logic application server by server, described to patrol
Volume application server according to the data file unique identifier, inquire in described information table with the data file unique mark
Corresponding content delivery network node information is accorded with, and in content distributing network section corresponding with the data file unique identifier
Point information there are it is multiple when, selected in one from the multiple content delivery network node information according to preset alternative condition
Content distributing network nodal information, selected content delivery network node information is sent to the transmission data file acquisition please
Seek the content delivery network node of information；
Data acquisition module, for the content delivery network node information returned according to the Logic application server, from correspondence
Content delivery network node obtain and instruct relevant data file with the content distribution.
14. content delivery network node as claimed in claim 13, which is characterized in that the alternative condition includes logical reach
And/or the content delivery network node that physical distance is nearest.
15. a kind of server, which is characterized in that the server includes:
Synchronization unit, for the data file information that reception content distribution network node reports, by the data file information with
And corresponding content delivery network node information is stored to preset information table, and described information table is synchronized to Logic application clothes
Business device, the data file information include the unique identifier of data file；
First processing units, what is sent for reception content distribution network node instructs relevant data file to obtain with content distribution
Solicited message is taken, the unique identifier of the data file is carried in the solicited message, and the solicited message is forwarded
To the Logic application server, so that the Logic application server is according to the data file unique identifier, inquiry
Content delivery network node information corresponding with the data file unique identifier in described information table, and with the data
The corresponding content delivery network node information of file unique identifier there are it is multiple when, according to preset alternative condition from described more
A content delivery network node information is selected in a content delivery network node information, by selected content distributing network section
Point information is sent to the content delivery network node of the transmission data file acquisition solicited message, the content distributing network section
The content delivery network node information that point is returned according to the Logic application server, is obtained from corresponding content delivery network node
It takes and instructs relevant data file with the content distribution.
16. server as claimed in claim 15, which is characterized in that the server further includes：
Second processing unit, for receiving and processing the content delivery network node addition, modification and deleting data file
Request；
Third processing unit, for monitoring the state of the content delivery network node of reported data fileinfo, and according to prison
The state of the content delivery network node that the state of the content delivery network node measured updates storage.
17. the server as described in claim 15 or 16, which is characterized in that the data file information is the content distribution
The information for the data file that network node has been obtained or obtained；The data file information further includes the big of data file
It is small；The information of the content delivery network node includes the state of IP address, port numbers and content delivery network node.
18. a kind of server, which is characterized in that the server includes:
Information receiving unit for receiving the information table that inquiry access server synchronizes, is stored with data text in described information table
Part information and the information for corresponding to the content delivery network node for reporting the data file information, the data file information packet
Include the unique identifier of data file；
Processing unit, the data file for receiving the content delivery network node of inquiry access server forwarding obtains please
Information is sought, the unique identifier of the data file is carried in the solicited message, according to the data file unique mark
Symbol, inquire described information table in content delivery network node information corresponding with the data file unique identifier, and with
The corresponding content delivery network node information of the data file unique identifier there are it is multiple when, according to preset alternative condition
A content delivery network node information is selected from the multiple content delivery network node information, by selected content point
Hair network node information is sent to the content delivery network node of the transmission data file acquisition solicited message, so that described
The content delivery network node information that content delivery network node is returned according to the server, from corresponding content distributing network section
Point is obtained instructs relevant data file with content distribution.
19. server as claimed in claim 18, which is characterized in that the alternative condition includes logical reach and/or physics
Closest content delivery network node.
20. the server as described in claim 18 or 19, which is characterized in that the data file information is the content distribution
The information for the data file that network node has been obtained or obtained；The data file information further includes the big of data file
It is small；The information of the content delivery network node includes the state of IP address, port numbers and content delivery network node.
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