CN106936877B - A kind of content distribution method, apparatus and system - Google Patents
A kind of content distribution method, apparatus and system Download PDFInfo
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- CN106936877B CN106936877B CN201511029102.7A CN201511029102A CN106936877B CN 106936877 B CN106936877 B CN 106936877B CN 201511029102 A CN201511029102 A CN 201511029102A CN 106936877 B CN106936877 B CN 106936877B
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- H—ELECTRICITY
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- 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
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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Abstract
The problem of the invention discloses a kind of content distribution methods, apparatus and system, are related to field of communication technology, are able to solve the overload of edge cache server access in the prior art.The content distribution method includes: that the first central node obtains the content to be distributed in first content distribution network CDN and the operation statistical data in the 2nd CDN, runing statistical data is in the 2nd CDN to the statistical data of the amount of access of content to be distributed, and the first central node belongs to the first CDN；First central node is according to the status information for runing whole fringe nodes in statistical data and the first CDN, the Distribution Results of content to be distributed are obtained, Distribution Results include at least one determining edge cache server to be distributed and need to be the content of each edge cache server distribution to be distributed；First central node is that each edge cache server to be distributed distributes the content for needing to distribute in content to be distributed for the edge cache server to be distributed according to Distribution Results.
Description
Technical field
This application involves field of communication technology more particularly to a kind of content distribution methods, apparatus and system.
Background technique
Content distributing network (CDN, Content Delivery Network) passes through the intercommunication between existing network
It is superimposed one layer of new network architecture in agreement (IP, Internet Protocol) transmission network, content is published to closest to use
The network " edge " at family, allows user to obtain required content nearby, to solve the situation of current network congestion, improves user
Access the response speed of network.
CDN is made of multiple CDN nodes, and each CDN node is generally by one or at least two cache server cluster groups
At.Multiple CDN nodes are divided into two class of central node and fringe node.Central node has management content, Scheduling content, in caching
Hold and distribute for fringe node the function of content.Currently, content distribution method is each edge section of the center node into network
A content to be distributed of point distribution, so that there is an edge cache server in each fringe node, to be stored with portion to be distributed
The purpose distribution location information that content or central node are got according to the central node, distributes location information to purpose
Corresponding a content to be distributed of fringe node distribution, so that being deposited in fringe node corresponding with purpose distribution location information
A content to be distributed is stored in an edge cache server.
The above method can be by an edge cache of the content distribution to be distributed into the fringe node closest to user
Server allows user to obtain content to be distributed nearby, but each edge cache for getting content to be distributed is taken
It is engaged in for device, the content to be distributed of edge cache server storage is possible to be unable to satisfy the requirements for access of user, and then leads
Cause edge cache server access overload.
Summary of the invention
The embodiment of the present invention provides a kind of content distribution method, apparatus and system, and it is slow to be able to solve edge in the prior art
The problem of depositing server access overload.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the present invention provides a kind of content distribution method, distributes firstly, the first central node is obtained in first content
Content to be distributed in network C DN and the operation statistical data in the 2nd CDN, the operation statistical data are described second
To the statistical data of the amount of access of the content to be distributed in CDN, first central node belongs to the first CDN；Then,
First central node according to the operation statistical data got and with whole sides in the first CDN that gets in advance
The status information of edge node obtains at least one determining edge cache server to be distributed and need to delay for each edge to be distributed
Deposit the content of server distribution；Finally, first central node be each edge cache server to be distributed distribution it is described to
The content distributed for the edge cache server to be distributed is needed in distribution content.
Runing statistical data is in the 2nd CDN to the statistical data of the amount of access of content to be distributed, the operation statistical number
According to the amount of access information that can really reflect content to be distributed different dimensions in the 2nd CDN, first in the embodiment of the present invention in
Heart node refers to the operation statistical data, at least one of the first CDN determined edge cache server to be distributed and need
Content distribution content to be distributed for each edge cache server distribution to be distributed also can really and accurately reflect in be distributed
The amount of access information of mono- CDN of Rong, in this way, the memory space for not only increasing each edge cache server to be distributed utilizes
Rate, and can satisfy the requirements for access of user, solve the problems, such as the overload of edge cache server access in the prior art.
Specifically, first central node obtains the content to be distributed in the first CDN and the operation in the 2nd CDN
Statistical data, comprising: the content mark including the content to be distributed that the first central node reception content server is sent
Know, the content to be distributed is in the storage location information of the content server and the content distribution of the operation statistical data
Message；First central node downloads the content to be distributed according to the content identification and the storage location information.
Optionally, the operation statistical data includes at least one reference position information and the content to be distributed every
The amount of access information of a reference position information, the status information include the position of each fringe node in the first CDN
Information.
Correspondingly, first central node is according to whole edges in the operation statistical data and the first CDN
The status information of node obtains the Distribution Results of content to be distributed, specifically includes: first central node is according to preset rules
With the content to be distributed each reference position information amount of access information, from described all referring to being determined in location information
At least one purpose reference position information；First central node is each from the location information of whole fringe nodes
Purpose reference position information chooses the location information of a fringe node to be distributed, and the fringe node to be distributed includes at least one
A edge cache server；First central node is each wait divide according to the location information of each fringe node to be distributed
Hair fringe node determines at least one edge cache server to be distributed.
When runing statistical data includes content to be distributed amount of access information of region dimension in the 2nd CDN, in first
Heart node can determine edge cache server to be distributed according to the operation statistical data.
Specifically, for the reference position information of the first mesh at least one described purpose reference position information, it is described
First central node is that the reference position information of first mesh chooses first from the location information of whole fringe nodes
The location information of fringe node to be distributed, specifically includes: if there are the location informations of fringe node in the whole fringe node
Identical as the reference position information of first mesh, then the location information of the fringe node is determined as by first central node
The location information of first fringe node to be distributed；If the reference of the location information and first mesh of the whole fringe node
Location information is all different, then first central node chooses first wait divide from the location information of whole fringe nodes
The location information of the fringe node of hair, wherein the location information of the described first fringe node to be distributed and first purpose
The distance between reference position information minimum.
Further, the content distribution message further includes purpose distribution location information.
Correspondingly, first central node is each purpose reference bit from the location information of whole fringe nodes
After confidence breath chooses the location information of a fringe node to be distributed, and first central node is each edge to be distributed
Before the location information of node determines at least one edge cache server to be distributed, the content distribution method further include: if
The location information of purpose distribution fringe node is not contained in the location information of at least one fringe node to be distributed, then described
The location information of purpose distribution fringe node is determined as the location information of fringe node to be distributed, institute by the first central node
Purpose distribution fringe node is stated to be contained in the distribution location information of the mother.
It is understood that if comprising purposeful distribution location information in content distribution message, illustration purpose distributes position
Confidence ceases included all purposes distribution fringe node and is required to distribute content to be distributed.It is determined according to operation statistical data
Fringe node to be distributed exist include purpose distribute fringe node the case where, in this case it is necessary to which purpose is distributed
Fringe node is set as fringe node to be distributed.
Further, the status information further includes that the storage of each edge cache server in the first CDN is empty
Between utilization rate, the attribute value of each edge cache server and each edge cache server memory space numerical value.
Correspondingly, for the first fringe node to be distributed in the location information of at least one fringe node to be distributed
Location information for, first central node is first to be distributed according to the location information of the first fringe node to be distributed
Fringe node determines at least one edge cache server to be distributed, specifically includes: first central node according to it is described to
Distribute content the described first fringe node to be distributed amount of access information and the first preset threshold, determination need to for described first to
Distribution fringe node distributes the quantity N of the content to be distributed, N >=1；First central node is according to preset condition, from institute
It states in whole edge cache servers that the first fringe node to be distributed includes, chooses X edge cache server as candidate
Edge cache server, wherein the preset condition is that the storage space utilization of edge cache server is less than or equal to the
Two preset thresholds, and the attribute value of the edge cache server is less than third predetermined threshold value, X >=1；If N >=X, described
X candidate edge cache server is determined as edge cache server to be distributed by one central node；If N < X, described first
Central node selects N number of candidate edge cache server from the X candidate edge cache server, and will be described N number of
Candidate edge cache server is determined as edge cache server to be distributed, and N number of candidate edge cache server is the X
A candidate edge cache server be arranged successively from big to small according to free memory after top n.
First central node is after determining fringe node to be distributed, the edge that includes according to each fringe node to be distributed
The storage space utilization of cache server determines edge cache server to be distributed.
Optionally, the operation statistical data include the content to be distributed at least one code rate amount of access information and
Amount of access information of the content to be distributed in the full content fragment of each code rate.
Correspondingly, for the first edge cache server to be distributed at least one edge cache server to be distributed,
The first central node determination need to be the method for the content of the described first edge cache server distribution to be distributed, comprising: institute
State the free memory numerical value that the first central node determines the described first edge cache server to be distributed；If described first to
The free memory numerical value for distributing edge cache server is less than the occupied space numerical value of the content to be distributed, then and described the
One central node is according to the content to be distributed in the amount of access information of at least one code rate and the content to be distributed each
The amount of access information of the full content fragment of code rate, determining that at least one content fragment is need to be that the described first edge to be distributed is slow
The content of server distribution is deposited, the occupied space numerical value of at least one content fragment is slow equal to the described first edge to be distributed
Deposit the free memory numerical value of server；If the free memory numerical value of the first edge cache server to be distributed is big
In or equal to the content to be distributed occupied space numerical value, then the content to be distributed is determined as by first central node
It need to be the content of the described first edge cache server distribution to be distributed.
In conjunction with the free memory of edge cache server to be distributed and the amount of access information of each content fragment, determine
It need to be out the content of the edge cache server distribution to be distributed, meet the memory space of edge cache server to be distributed
Simultaneously, moreover it is possible to meet the requirements for access of user.
Specifically, first central node according to the content to be distributed at least one code rate amount of access information and
The content to be distributed determines that at least one content fragment is to be in the amount of access information of the full content fragment of each code rate
The content of the first edge cache server distribution to be distributed, specifically include: first central node chooses amount of access letter
Cease maximum code rate；First central node is according to the maximum code rate of the amount of access and the content to be distributed in the code rate
Full content fragment amount of access information, the maximum content fragment of amount of access information in the code rate is determined as need to be described the
The content of one edge cache server distribution to be distributed, until the available storage of the described first edge cache server to be distributed is empty
Between numerical value be zero.
The first central node preferentially chooses the content to be distributed of the maximum code rate of amount of access information in the embodiment of the present invention, and
The maximum content of amount of access information point is chosen in the full content fragment of the maximum code rate of amount of access information in content to be distributed
The content fragment is determined as being the content of the first edge cache server distribution to be distributed, guarantees the first side to be distributed by piece
Edge cache server is able to satisfy the requirements for access of user.
Optionally, the operation statistical data includes at least one measurement period and the content to be distributed in each statistics
The amount of access information in period.
Correspondingly, first central node divides according to the Distribution Results for each edge cache server to be distributed
After needing the content distributed for the edge cache server to be distributed in sending out content to be distributed described, the content distribution method is also
Include: first central node according to the content to be distributed each measurement period amount of access information, determine it is described to
Distribute content in the protection period of each of the first CDN edge cache server to be distributed；First central node is to every
A edge cache server to be distributed sends setting request, and the setting message includes the content to be distributed on the side to be distributed
The protection period of edge cache server, it is each self that the setting message is used to indicate each edge cache server setting to be distributed
Distribute the protection period of content, the content of having distributed belongs to the content to be distributed.
Runing in statistical data includes amount of access information of the content to be distributed in each measurement period, the first central node
According to this information, the content protecting period of each of the first CDN edge cache server to be distributed is set, can both be prevented
Amount of access is rising but is crossing the case where content of protection period is eliminated, be also possible to prevent amount of access become it is very low,
But the content also in protection period still occupies the case where spatial cache.
Further, first central node according to the Distribution Results, is being each edge cache service to be distributed
After device distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed, and determine it is described to
Distribute content before the protection period of each of the first CDN edge cache server to be distributed, receives each side to be distributed
The confirmation message that edge cache server is sent.
Another embodiment of the present invention provides a kind of content distribution methods, comprising: and content server obtains operation statistical data,
The operation statistical data is in the second content distributing network CDN to the statistical data of the amount of access of content to be distributed；It is described
Content server sends the content identification for including the content to be distributed, the content to be distributed described to the first central node
The content distribution message of the storage location information of content server and the operation statistical data, is used to indicate in described first
Heart node distributes the content to be distributed in the first CDN, and first central node belongs to the first CDN.
In the embodiment of the present invention content server to the first central node send content distribution message when, in addition to will to point
The content identification and content to be distributed for sending out content in the storage location information of the content server are sent to the first central node
In addition, also the first center will be sent to the statistical data of the amount of access of content to be distributed in the second content distributing network CDN
Node is believed when the first central node being enabled to distribute content to be distributed in the first CDN with reference to the amount of access of content to be distributed
Breath, accurately determines the edge cache server to be distributed in the first CDN and need to be each edge cache server to be distributed
The content of distribution to improve the storage space utilization of each edge cache server to be distributed, and can satisfy use
The requirements for access at family solves the problems, such as the overload of edge cache server access in the prior art.
Specifically, the content server obtains operation statistical data, specifically include: if the content server is in local
Content disposition operation management table in get the mark of the 2nd CDN, then the content server is sent to the second central node
Operation statistics request message, second central node belong to the 2nd CDN, and local content disposition operation management table includes
The mark and the mapping relations of the content identification of the content to be distributed of 2nd CDN, the operation count request message packet
Content identification containing the content to be distributed, the operation statistics request message is for requesting the second central node statistical
Analyse amount of access information of the content to be distributed in the 2nd CDN；The content server receives the second central node hair
The operation statistics response message sent, the operation statistics response message includes the operation statistical data.
Further, the operation statistics request message further includes statistical parameter, and the operation statistical message is for requesting
Second central node, which statisticallys analyze amount of access of the content to be distributed in the 2nd CDN according to the statistical parameter, to be believed
Breath, the statistical parameter include at least one of region granular information, code rate, timestamp information, amount of access measurement period.
The embodiment of the present invention provides a kind of central node, comprising: acquiring unit, determination unit and Dispatching Unit.
Specifically, the function that each unit module provided in an embodiment of the present invention is realized is specific as follows:
Acquiring unit, for obtaining the content to be distributed in first content distribution network CDN and the fortune in the 2nd CDN
Statistical data is sought, the operation statistical data is in the 2nd CDN to the statistical number of the amount of access of the content to be distributed
According to the central node belongs to the first CDN.
Determination unit, in the operation statistical data according to the information acquired by the acquisition unit and the first CDN
Whole fringe nodes status information, obtain the Distribution Results of content to be distributed, the Distribution Results include it is determining at least
One edge cache server to be distributed and the content that need to distribute for each edge cache server to be distributed.
Dispatching Unit, the Distribution Results for being determined according to the determination unit are each edge cache to be distributed
Server distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed.
The technical effect of central node provided in an embodiment of the present invention may refer to the first central node in above-described embodiment
The technical effect of first central node described in the content distribution method of execution, details are not described herein again.
Further, the central node further includes receiving unit,
The receiving unit, for the content distribution message that reception content server is sent, the content distribution message package
Include the storage location information and institute of the content identification, the content to be distributed of the content to be distributed in the content server
State operation statistical data.
Further, the central node further includes download unit,
The download unit, the content identification and storage location letter for being received according to the receiving unit
Breath downloads the content to be distributed.
Optionally, the operation statistical data includes at least one reference position information and the content to be distributed every
The amount of access information of a reference position information, the status information include the position of each fringe node in the first CDN
Information.
Further, the determination unit, is specifically used for:
According to preset rules and the content to be distributed each reference position information amount of access information, from the whole
At least one purpose reference position information is determined in the location information of reference edge node；
It is that each purpose reference position information chooses a side to be distributed from the location information of whole fringe nodes
The location information of edge node, the fringe node to be distributed include at least one edge cache server；
According to the location information of each fringe node to be distributed, determine that at least one is waited for point for each fringe node to be distributed
Hair side edge cache server.
Further, for the reference position information of the first mesh at least one described purpose reference position information, institute
Determination unit is stated, is specifically used for:
If in the whole fringe node, there are the reference position information of the location information of fringe node and first mesh
It is identical, then the location information of the fringe node is determined as to the location information of the first fringe node to be distributed；
If the reference position information of the location information and first mesh of the whole fringe node is all different, from institute
State in the location information of whole fringe nodes choose the first fringe node to be distributed location information, wherein described first to
The distance between the location information of the fringe node of distribution and the reference position information of first mesh are minimum.
Further, the content distribution message further includes purpose distribution location information.
Further, the determination unit is also used in the location information from whole fringe nodes be each mesh
Reference position information choose the location information of a fringe node to be distributed after, and for each fringe node to be distributed
Before location information determines at least one edge cache server to be distributed, if purpose distribution fringe node location information not by
It is contained in the location information of at least one fringe node to be distributed, then it is the location information of purpose distribution fringe node is true
It is set to the location information of fringe node to be distributed, the purpose distribution fringe node is contained in the distribution location information of the mother
In.
Further, the status information further includes that the storage of each edge cache server in the first CDN is empty
Between utilization rate, the attribute value of each edge cache server and each edge cache server memory space numerical value.
Further, for the first edge section to be distributed in the location information of at least one fringe node to be distributed
For the location information of point, the determination unit is specifically used for:
According to the content to be distributed the described first fringe node to be distributed amount of access information and the first preset threshold,
Determination need to distribute the quantity N of the content to be distributed, N >=1 for the described first fringe node to be distributed；
According to preset condition, from whole edge cache servers that the described first fringe node to be distributed includes, X is chosen
A edge cache server is as candidate edge cache server, wherein the preset condition is depositing for edge cache server
It stores up space utilization rate and is less than or equal to the second preset threshold, and the attribute value of the edge cache server is less than third and presets threshold
Value, X >=1；
If N >=X, X candidate edge cache server is determined as edge cache server to be distributed；
If N < X, N number of candidate edge cache server is selected from the X candidate edge cache server, and will
N number of candidate edge cache server is determined as edge cache server to be distributed, N number of candidate edge cache server
Top n after being arranged successively from big to small for the X candidate edge cache server according to free memory.
Optionally, the operation statistical data include the content to be distributed at least one code rate amount of access information and
Amount of access information of the content to be distributed in the full content fragment of each code rate.
Further, for the first edge cache service to be distributed at least one edge cache server to be distributed
Device, the determination unit, is specifically used for:
Determine the free memory numerical value of the described first edge cache server to be distributed；
If the free memory numerical value of the first edge cache server to be distributed is less than the content to be distributed
Occupied space numerical value then exists according to the content to be distributed in the amount of access information of at least one code rate and the content to be distributed
The amount of access information of the full content fragment of each code rate, determining that at least one content fragment is need to be the described first side to be distributed
The occupied space numerical value of the content of edge cache server distribution, at least one content fragment is equal to the described first side to be distributed
The free memory numerical value of edge cache server；
If the free memory numerical value of the first edge cache server to be distributed is greater than or equal to described to be distributed
The content to be distributed then is determined as being the described first edge cache server to be distributed point by the occupied space numerical value of content
The content of hair.
Further, the determination unit, is specifically used for:
Choose the maximum code rate of amount of access information；
According to the maximum code rate of the amount of access and the content to be distributed the full content fragment of the code rate access
Information is measured, the maximum content fragment of amount of access information in the code rate is determined as need to be the described first edge cache service to be distributed
The content of device distribution, until the free memory numerical value of the described first edge cache server to be distributed is zero.
Optionally, the operation statistical data includes at least one measurement period and the content to be distributed in each statistics
The amount of access information in period.
Further, the determination unit is also used in the Dispatching Unit according to the Distribution Results, for each wait divide
After hair side edge cache server distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed,
According to the content to be distributed in the amount of access information of each measurement period, determine the content to be distributed in the first CDN
The protection period of each edge cache server to be distributed.
Further, the central node further includes transmission unit,
The transmission unit, for sending setting request, the setting message to each edge cache server to be distributed
Comprising the determination unit determine the content to be distributed the edge cache server to be distributed protection period, it is described to set
It sets message and is used to indicate each each protection period for distributing content self of edge cache server setting to be distributed, it is described to have distributed
Content belongs to the content to be distributed.
Further, the receiving unit is also used in the determination unit according to the Distribution Results, for each wait divide
After hair side edge cache server distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed,
And determining that the content to be distributed before the protection period of each of the first CDN edge cache server to be distributed, connects
Receive the confirmation message that each edge cache server to be distributed is sent.
Another embodiment of the present invention provides a kind of content servers, including acquiring unit and transmission unit.
Specifically, the function that each unit module provided in an embodiment of the present invention is realized is specific as follows:
Acquiring unit, for obtaining operation statistical data, the operation statistical data is in the second content distributing network CDN
In to the statistical data of the amount of access of content to be distributed.
Transmission unit, for sending content distribution message to the first central node, the content distribution message includes described
The content identification of content to be distributed, the content to be distributed the content server storage location information and the operation
Statistical data, the content distribution message are used to indicate first central node for the content to be distributed in the first CDN
Distribution, first central node belong to the first CDN.
The technical effect of content server provided in an embodiment of the present invention may refer to content server in above-described embodiment
The technical effect of content server described in the content distribution method of execution, details are not described herein again.
Further, the transmission unit, if specifically for getting the in local content disposition operation management table
The mark of two CDN, then send operation statistics request message to the second central node, and second central node belongs to described second
CDN, local content disposition operation management table include the content identification of the mark and the content to be distributed of the 2nd CDN
Mapping relations, the operation statistics request message include the content identification of the content to be distributed, and the operation statistics request disappears
Breath is for requesting second central node to statistically analyze amount of access information of the content to be distributed in the 2nd CDN.
Further, the content server further includes receiving unit,
The receiving unit counts response message, the operation for receiving the operation that second central node is sent
Counting response message includes the operation statistical data.
Further, the operation statistics request message further includes statistical parameter, and the operation statistical message is for requesting
Second central node, which statisticallys analyze amount of access of the content to be distributed in the 2nd CDN according to the statistical parameter, to be believed
Breath, the statistical parameter include at least one of region granular information, code rate, timestamp information, amount of access measurement period.
The embodiment of the present invention also provides a kind of content distribution system, including as described in above-mentioned any one central node,
At least one fringe node of content server and the central node management as described in above-mentioned any one, each edge
Node is made of at least one edge cache server, is connected between the content server and the central node by network
It connects, passes through network connection between the central node and each edge cache server.
Specifically, central node is the first central node.
The technical effect of content distribution system provided in an embodiment of the present invention may refer to the first center in above-described embodiment
Content server in the technical effect and above-described embodiment of first central node described in the content distribution method that node executes
The technical effect of content server described in the content distribution method of execution, details are not described herein again.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments.
Fig. 1 is the network structure of content distribution system；
Fig. 2 is the flow diagram of existing content distribution method；
Fig. 3 is the flow diagram one of content distribution method provided in an embodiment of the present invention；
Fig. 4 is the flow diagram two of the content distribution method provided in the embodiment of the present invention；
Fig. 5 is the flow diagram three of the content distribution method provided in the embodiment of the present invention；
Fig. 6 is the flow diagram four of the content distribution method provided in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram one of the central node provided in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram two of the central node provided in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram three of the central node provided in the embodiment of the present invention；
Figure 10 is the structural schematic diagram one of the content server provided in the embodiment of the present invention；
Figure 11 is the structural schematic diagram two of the content server provided in the embodiment of the present invention；
Figure 12 is the structural schematic diagram three of the content server provided in the embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
Description and claims of this specification and term " first ", " second ", " third " and " in above-mentioned attached drawing
Four " etc. be for distinguishing different objects, rather than for limiting particular order.In addition, term " includes " and " having " and it
Any deformation, it is intended that cover and non-exclusive include.Such as it contains the process, method of a series of steps or units, be
System, product or equipment are not limited to listed step or unit, but optionally further comprising the step of not listing or list
Member, or optionally further comprising other step or units intrinsic for these process, methods, product or equipment.
In being described below, for illustration and not for limitation, propose such as specific system structure, interface, technology it
The detail of class understands the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, omit to well-known device, circuit and
The detailed description of method, in case unnecessary details interferes description of the invention.
In addition, the terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates may exist
Three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Separately
Outside, character "/" herein typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Fig. 1 is the network structure of content distribution system.Referring to Fig. 1, which includes content server 10
And one or more CDN11.Wherein, pass through network connection between CDN11 and content server 10.
Optionally, content server 10 can be content supplier (CP, Content Provider) server, can also be with
For service provider (SP, Service Provider) server.
CDN11 includes the fringe node 111 that central node 110 and one or more and central node 110 connect.Its
In, pass through network connection between central node 110 and fringe node 111.Each fringe node includes one or more edges
Cache server 112.
Central node 110 has the function of management content, Scheduling content, cache contents and distribution content etc., can know institute
There are the geographical location information of fringe node 111, the information such as the storage information and service state of all edge cache servers 112.
Content server 10 is mainly used for central node 110 into CDN11 and sends content distribution message, is used to indicate
Heart node 110 returns content to be distributed in the central node 110 according to the content identification of content to be distributed in content distribution message
It is distributed in the CDN11 of category.
Wherein, 10 self maintained of content server has content disposition operation management table, in the content disposition operation management table
It include the parameters such as content identification, CDN mark, online moment and offline moment, wherein CDN mark, which is used to indicate distribution, to be had
The CDN of content corresponding with content identification.
Central node 110 is mainly used for the content distribution message of the transmission of reception content server 10, and according to receiving
Storage location information in content distribution message, downloads content to be distributed.Central node 110 be also used to determine will acquire to
Distribute content distribution to which edge cache server 112, and the operation for sending according to content server 10 is counted and asked
Ask the content identification for including, amount of access information of the content of analysis content identification instruction in CDN11.
There are the content protecting phases for the content distributed in CDN.Wherein, the content protecting phase is CDN to being newly deployed in system
Content, which carries out mandatory protection, makes the time cycle that it is not eliminated.
In the prior art, there are following two content distribution methods in CDN:
(1) after central node gets content to be distributed from CP server/SP server, each edge in network is triggered
A content to be distributed of one of cache server downloading in node, to realize, all fringe nodes are stored in network
A content to be distributed.
(2) after central node gets content to be distributed from CP server/SP server, central node is serviced according to CP
The purpose distribution location information for including in the content distribution task message that device/SP server is sent is believed with purpose distribution position
It ceases and determines cache server to be distributed in the cache server that corresponding fringe node includes, and trigger caching clothes to be distributed
A content to be distributed of business device downloading stores portion content to be distributed to realize in cache server to be distributed.
Specifically, as shown in Fig. 2, above-mentioned second of content distribution method specifically:
1, the central node that content server includes to CDN sends content distribution message, wherein the content distribution message package
The storage location information and purpose of content identification, content to be distributed containing content to be distributed in content server distribute position
Information.
2, central node distributes location information according to purpose, selects in fringe node corresponding with purpose distribution location information
Take the edge cache server that storage space utilization is minimum, service state is best as cache server to be distributed.
3, central node triggers all cache servers to be distributed and downloads content to be distributed.
4, after each cache server to be distributed is by content to be distributed downloading, confirmation is sent to central node and is disappeared
Breath.
5, central node disappears to the setting that each cache server transmission to be distributed includes the preset content protecting phase
Breath, so that each cache server to be distributed is to the curriculum offering of the downloading preset content protecting phase.
Above-mentioned CDN content distribution method can be realized by content distribution to be distributed to network " edge ", but for each
For getting the edge cache server of content to be distributed, the content to be distributed of edge cache server storage is possible to nothing
Method meets the requirements for access of user, and then edge cache server access is caused to be overloaded.
Specifically, the amount of access of content has following feature on different dimensions:
1, amount of access having differences property of the content in different regions.
Due to cultural difference of different regions user etc., amount of access of the different contents in each department is variant
's.For example, certain Video Applications statistics data are as follows: first three highest area of the amount of access of film X be respectively A, B and C
Ground, and the amount of access of film Y first three highest area be respectively L, M and N.
In order to provide nearest service as much as possible for user, when carrying out content distribution, it should preferentially arrive content distribution
Amount of access is high, i.e. the big region of user demand, and general amount of access is bigger, and the distribution quantity of content should be more, with reply
The pressure concurrently accessed.
2, the amount of access of content changes over time having differences property.
After content is online, amount of access generally follow first rise then decline process, this from rise to decline when
Between the period be known as the amount of access damped cycle of content.The amount of access damped cycle of different content be it is different, in some contents
Amount of access rising declines also fast fastly after line, and amount of access rises slower after some contents are online, but the time that amount of access retains
Long, that is, what is declined is also very slow.
When carrying out content distribution, more satisfactory situation be arranged according to the amount of access damped cycle of content it is different
Protection period both can prevent amount of access from rising but cross the case where content of protection period is eliminated, be also possible to prevent in this way
Amount of access has become very low but also the case where the content of protection period still occupies spatial cache.
3, amount of access having differences property of the content on different code rates and different time stamp
Due to the complexity of network environment, for streaming medium content, can generally there be various code rate, lead in the transmission
Switching code rate is crossed to guarantee the fluency of streaming medium content transmission.
In addition, current hypertext transfer protocol (HTTP, Hypertext Transfer Protocol) generally requires
Streaming medium content is cut into the content fragment of many short time (such as 10 seconds, one minute etc.), each content being capable of fragment
There is a timestamp, is used to refer to the time that the content fragment is originated relative to streaming medium content.
From code rate, user is not uniformly, to there is cold and hot code rate to the amount of access of every kind of code rate.From timestamp
On see, user be also to the access on each timestamp of content it is non-uniform, user is not always from the beginning content is seen tail, is had
A little possible most of a part for only being had viewed beginning of contents, some may be to have viewed the part of beginning or ending.
When distributing streaming medium content, it should preferentially by the content of the high code rate of amount of access and amount of access high period
Fragment is distributed to fringe node and is stored.
Content distribution method in the prior art there are aiming at the problem that, the embodiment of the present invention is based on the amount of access of content not
Feature with dimension provides a kind of content distribution method, apparatus and system, by increasing in be distributed in content dispatch messages
The amount of access information of different dimensions in bis- CDN of Rong increases the operation system of content to be distributed different dimensions in the 2nd CDN
Count, when so that distributing content to be distributed in the first CDN, can accurately calculate edge cache server to be distributed and
The content of each edge cache server storage to be distributed, thus avoid the problem that edge cache server access is overloaded, it can
Better meet the requirements for access of user.
Embodiment one
Fig. 3 is a kind of flow diagram of content distribution method provided in an embodiment of the present invention, which can
In application application scenarios shown in Fig. 1.
Referring to Fig. 3, which includes:
S100, content server obtain operation statistical data.
Wherein, operation statistical data is in the 2nd CDN to the statistical data of the amount of access of content to be distributed.
S101, content server send the content identification for including content to be distributed, content to be distributed to the first central node
In the storage location information of content server and the content distribution message of operation statistical data.
Wherein, content distribution message is used to indicate the first central node and distributes content to be distributed in the first CDN, and first
Central node belongs to the first CDN.
S102, the first central node download content to be distributed according to content identification and storage location information.
First central node downloads content to be distributed from content server, and the process and existing central node take from content
The process that content to be distributed is downloaded in business device is identical, is no longer described in detail herein.
S103, the first central node according to operation statistical data and the first CDN in whole fringe nodes status information,
It obtains at least one determining edge cache server to be distributed and need to distribute for each edge cache server to be distributed interior
Hold.
S104, the first central node are that each edge cache server to be distributed is distributed and needs to wait for for this in content to be distributed point
The content of hair side edge cache server distribution.
Under normal circumstances, content server self maintained has content disposition operation management table, the content disposition operation management
It include the parameters such as content identification, CDN mark, online moment and offline moment in table, wherein CDN mark is used to indicate point
Hair has the CDN of content corresponding with content identification.
Content server executes S100, obtains operation statistical data.
Specifically, content distribution operation of the content server in response to administrator, inquires local content disposition operation pipe
In reason table whether include content to be distributed content identification, the content distribution operation of administrator is for triggering content server
Content distribution message is sent to the first central node in the first CDN, in order to the first central node by content to be distributed the
Distribute in one CDN.
If content server obtains and wait divide there are the content identification of content to be distributed in content disposition operation management table
Send out the corresponding CDN mark of content identification of content, i.e. the 2nd CDN of acquisition mark.
If the content identification of content to be distributed is not present in content disposition operation management table, content server is according to existing
Content distribution method execute corresponding steps.
Wherein, local content disposition operation management table includes the content identification of the mark and content to be distributed of the 2nd CDN
Mapping relations.
It is understood that since content distribution operation is said for triggering content distribution to be distributed in the first CDN
Never distribute content to be distributed in bright first CDN.What is recorded in content disposition operation management table in content server is at which
Any content distributed in a CDN, therefore, if there are the content identification of content to be distributed in content disposition operation management table,
Illustrate that content to be distributed has been distributed in other CDN, and the CDN is different from the first CDN.
Specifically, content server sends the operation statistics of the content identification comprising content to be distributed to the second central node
Request message, for requesting the second central node to statistically analyze amount of access information of the content to be distributed in the 2nd CDN.Wherein,
Second central node belongs to the 2nd CDN.
Further, operation statistics request message further includes statistical parameter, which counts request message for requesting the
Two central nodes statistically analyze amount of access information of the content to be distributed in the 2nd CDN according to statistical parameter.
Preferably, the statistical parameter in the embodiment of the present invention includes region granular information, code rate, timestamp information, access
Measure at least one of measurement period.
Wherein, region granular information refers to the region granularity of regional information statistics, such as with " province " for unit, or with
" city " is unit.Code rate refers to the code rate of content.Timestamp information refers to that statistics streaming medium content accesses measurement on timestamp
Time granularity when distribution, such as statistics amount of access is carried out as unit of 10 minutes.Amount of access measurement period refers to statistics access
The time cycle of amount, such as 24 hours.
Wherein, the central node in the embodiment of the present invention is provided with statistics default parameters in advance, which can be
First central node, or the second central node.
Specifically, the second central node is silent according to statistics if not including statistical parameter in operation statistics request message
Recognize amount of access information of the Parameter statistical analysis content to be distributed in the 2nd CDN.
Since content to be distributed is distributed in the 2nd CDN, the second central node can be calculated in be distributed
The amount of access information of each dimension in bis- CDN of Rong, i.e. the second central node can calculate operation statistical data.In second
Heart node sends calculated operation statistical data to content server, in this way, content server can get operation system
It counts.
If counting in request message includes statistical parameter, correspond to statistical parameter, operation statistical data includes second
Distribution has the amount of access information of each reference position information of content to be distributed, content to be distributed at least one code rate in CDN
Amount of access information, content to be distributed in the amount of access information of the full content fragment of each code rate and content to be distributed each
The amount of access information of measurement period.
Correspondingly, content server executes S101 after getting operation statistical data, sends and wrap to the first central node
Include the content identification of content to be distributed, content to be distributed content server storage location information and operation statistical data
Content distribution message.
Optionally, content distribution message can also include purpose distribution location information and/or preset content protecting phase.
First central node is after receiving content distribution message, according to content identification and storage location information, downloading to
Distribute content, i.e. execution S102.
The process that first central node downloads content to be distributed is downloaded with existing central node from content server to be distributed
The process of content is identical, is no longer described in detail herein.
First central node is after getting content to be distributed and operation statistical data, according to operation statistical data and first
The status information of whole fringe nodes in CDN, obtains at least one determining edge cache server to be distributed and need to be every
The content of a edge cache server distribution to be distributed, i.e. execution S103.
Wherein, the status information in the embodiment of the present invention includes the location information, every of each fringe node in the first CDN
The storage space utilization of a edge cache server, the attribute value of each edge cache server and each edge cache service
The memory space numerical value of device.The attribute value of edge cache server is used for showing whether the operation of edge cache server is normal,
The attribute value can be central processing unit (CPU, Central Processing Unit) occupancy of edge cache server.
Specifically, if including at least one reference position information and the content to be distributed in operation statistical data every
The amount of access information of a reference position information, then the first central node is according to whole sides in operation statistical data and the first CDN
The status information of edge node determines the process of at least one edge cache server to be distributed are as follows:
1, the first central node according to preset rules and content to be distributed each reference position information amount of access information,
At least one purpose reference position information is determined from the location information all referring to fringe node.
Wherein, preset rules can be greater than the reference position information of requesting threshold for selection amount of access, or root
Successively choose several reference position information of front according to the sequence of amount of access information from big to small, the embodiment of the present invention to this not
Make specific limit.
2, the first central node is that each purpose reference position information chooses one from the location information of whole fringe nodes
The location information of a fringe node to be distributed.
Wherein, fringe node to be distributed includes at least one edge cache server.
Purpose reference position information is that the first central node is determined according to operation statistical data, can be for first
Distribute content to be distributed in CDN to refer to, therefore, the first central node is needed according to whole fringe nodes in the first CDN
Location information determines the location information of a fringe node to be distributed for each purpose reference position information.
Further, if content distribution message further includes purpose distribution location information, illustrate that the first central node is certain
Distribute the distribution fringe node of purpose included by location information for the purpose of wanting and distributes content to be distributed.If purpose distributes fringe node
Location information be not contained in the location information of at least one fringe node to be distributed, then the first central node is by purpose point
The location information of hair fringe node is determined as the location information of fringe node to be distributed.
3, the first central node is that each fringe node to be distributed is true according to the location information of each fringe node to be distributed
At least one fixed edge cache server to be distributed.
Specifically, the position of fringe node to be distributed for each of the location information of at least one fringe node to be distributed
For confidence breath, the first central node chooses the condition of edge cache server foundation to be distributed are as follows: edge cache server
Storage space utilization is less than or equal to the second preset threshold, and the attribute value of edge cache server is less than third predetermined threshold value,
And the quantity of edge cache server to be distributed is less than or equal to copy of content quantity.
Wherein, piece of content being stored in edge cache server and being known as a copy, edge cache server stores more parts
Content copes with the pressure concurrently accessed.
For the location information of the first fringe node to be distributed in the location information of at least one fringe node to be distributed
For, the first central node is that the first fringe node to be distributed determines extremely according to the location information of the first fringe node to be distributed
The process of a few edge cache server to be distributed are as follows:
A, the first central node is pre- in the amount of access information of the first fringe node to be distributed and first according to content to be distributed
If threshold value, determination need to distribute the quantity N of content to be distributed, N >=1 for the first fringe node to be distributed.
Preferably, the first preset threshold is requesting threshold, wherein requesting threshold can be rule of thumb configured,
The present invention is not especially limit this.Such as the average access amount of content all fringe nodes in the first CDN is believed
Breath is used as requesting threshold.
B, the first central node is according to preset condition, the whole edge cache services for including from the first fringe node to be distributed
In device, X edge cache server is chosen as candidate edge cache server, wherein preset condition is edge cache service
The storage space utilization of device is less than or equal to the second preset threshold, and the attribute value of edge cache server is default less than third
Threshold value, X >=1.
If C, N >=X, X candidate edge cache server is determined as edge cache to be distributed and taken by the first central node
Business device.
It is understood that if desired distribute N parts of contents to be distributed to first edge node, and the first central node is the
X candidate edge cache server, and N >=X are selected in all edge cache servers that one fringe node includes, then are needed
It regard all candidate edge cache servers selected as edge cache server to be distributed.
If D, N < X, the first central node selects N number of candidate edge caching from X candidate edge cache server
Server, and N number of candidate edge cache server is determined as edge cache server to be distributed, N number of candidate edge caching clothes
Business device is the top n after X candidate edge cache server is arranged successively from big to small according to free memory.
It is understood that the quantity for the candidate edge cache server that the first central node selects is greater than copy of content
Quantity then needs to choose again from candidate edge cache server, in order to finally determine edge cache service to be distributed
Device.
Specifically, if not including that at least one reference position information and the content to be distributed exist in operation statistical data
The amount of access information of each reference position information, then the first central node determines the method for edge cache server to be distributed and shows
There is the first central node in technology to determine that the method for edge cache server to be distributed is identical, is no longer described in detail herein.
Further, after first node determines at least one edge cache server to be distributed, determination need to be each
The content of edge cache server distribution to be distributed.
Specifically, if operation statistical data includes content to be distributed in the amount of access information of at least one code rate and to be distributed
Content the full content fragment of each code rate amount of access information, then at least one edge cache server to be distributed
The first edge cache server to be distributed, the first central node determination need to be the first edge cache server to be distributed distribution
The method of content are as follows:
A, the first central node determines the free memory numerical value of the first edge cache server to be distributed.
First central node manages all fringe nodes and all edge cache servers in the first CDN, therefore, in first
Heart node can know the free memory numerical value of the first edge cache server to be distributed in advance.
If B, the free memory numerical value of the first edge cache server to be distributed is less than the occupancy sky of content to be distributed
Between numerical value, then the first central node according to content to be distributed in the amount of access information of at least one code rate and content to be distributed every
The amount of access information of the full content fragment of a code rate, determining that at least one content fragment is need to be the first edge cache to be distributed
The content of server distribution, wherein the occupied space numerical value of at least one content fragment is equal to the first edge cache clothes to be distributed
The free memory numerical value of business device.
It is understood that if the free memory numerical value of the first edge cache server to be distributed is less than in be distributed
The occupied space numerical value of appearance then illustrates that the first edge cache server to be distributed is only capable of storage section content to be distributed.Therefore,
First central node takes according to the amount of access information of content fragment each in content to be distributed for the first edge cache to be distributed
Business device distributes the highest content fragment of amount of access information.
Specifically, the first central node determines first according to content to be distributed in the amount of access information of at least one code rate
The maximum code rate of amount of access information, then, the first central node choose the maximum content of amount of access information point in same code rate
Piece, the first central node in this order, select each content fragment one by one, until the occupancy of the content fragment of selection is empty
Between numerical value it is identical as the free memory numerical value of the first edge cache server to be distributed, i.e., until the first edge to be distributed is slow
The free memory numerical value for depositing server is zero.
If C, the free memory numerical value of the first edge cache server to be distributed is greater than or equal to content to be distributed
Occupied space numerical value, then content to be distributed is determined as to distribute for the first edge cache server to be distributed by the first central node
Content.
It is understood that if the free memory numerical value of the first edge cache server to be distributed be greater than or equal to
Distribute the occupied space numerical value of content, then illustrate that the first edge cache server to be distributed can store all contents to be distributed,
Therefore, content to be distributed is determined as being the content of the first edge cache server distribution to be distributed by the first central node.
First central node determines at least one edge cache server to be distributed and need to be slow for each edge to be distributed
After the content for depositing server distribution, S104 is executed, the first central node is that each edge cache server to be distributed is distributed wait divide
The content distributed for the edge cache server to be distributed is needed in hair content.
The embodiment of the present invention provides a kind of content distribution method, increases operation statistical data, fortune in content dispatch messages
Seeking statistical data is to the statistical data of the amount of access of content to be distributed in the 2nd CDN, which can be true
Reflect the amount of access information of content to be distributed different dimensions in the 2nd CDN, so that the first central node is counted with reference to the operation
Data, at least one of the first CDN determined edge cache server to be distributed and need to be each edge cache to be distributed
The content distribution content to be distributed of server distribution also can really and accurately reflect that amount of access of the content to be distributed in the first CDN is believed
Breath, in this way, not only increasing the storage space utilization of each edge cache server to be distributed, and can satisfy user's
Requirements for access solves the problems, such as the overload of edge cache server access in the prior art.
Embodiment two
Fig. 4 is a kind of flow diagram of content distribution method provided in an embodiment of the present invention, which can
In application application scenarios shown in Fig. 1.
Referring to fig. 4, which includes:
S200, content server inquire local content disposition operation management in response to the content distribution operation of administrator
In table whether include content to be distributed content identification.
Specifically, content server according to the available content identification to content to be distributed of content distribution operation, to point
Send out storage location information, and/or purpose distribution location information, and/or preset content protecting of the content in content server
Period.
Wherein, content identification can identify (ID, Identity) for Content identity, or content name, the present invention
Embodiment is not especially limited this.
Illustratively, content server is according to the content identification that content distribution operation gets content to be distributed
0110jmvod02, it is " Beijing " that purpose, which distributes location information,；The preset content protecting period is 24 hours.
Under normal circumstances, content server self maintained has content disposition operation management table, the content disposition operation management
It include the parameters such as content identification, CDN mark, online moment and offline moment in table, wherein CDN mark is used to indicate point
Hair has the CDN of content corresponding with content identification.
Specifically, inquiry is originally after content server gets the content identification of content to be distributed according to content distribution operation
In the content disposition operation management table on ground whether include content to be distributed content identification.
If in content disposition operation management table including the content identification of content to be distributed, and the content with content to be distributed
It identifies corresponding CDN and is identified as the 2nd CDN mark, then content server can be got right in the 2nd CDN according to the 2nd CDN
The statistical data of the amount of access of content to be distributed.
If not including the content identification of content to be distributed in content disposition operation management table, content server is according to existing
Content distribution method carry out respective handling.
If there are the content identification of content to be distributed in S201, content disposition operation management table, content server is obtained
2nd CDN mark corresponding with the content identification of content to be distributed.
S202, content server are asked to the operation statistics that the second central node sends the content identification comprising content to be distributed
Seek message.
Wherein, the second central node belongs to the 2nd CDN.Operation statistics request message is for requesting the second central node statistics
Analyze amount of access information of the content to be distributed in the 2nd CDN.
Further, operation statistics request message further includes statistical parameter, which counts request message for requesting the
Two central nodes statistically analyze amount of access information of the content to be distributed in the 2nd CDN according to statistical parameter.
Preferably, the statistical parameter in the embodiment of the present invention includes region granular information, code rate, timestamp information, access
Measure at least one of measurement period.
Illustratively, content server send statistics request message include: content ID be 0110jmvod02, region grain
Degree information is city, code rate is 3 Mbytes (MB, Megabytes) and 1MB, timestamp are 20 minutes, measurement period is 24 hours.
It includes the operation statistics response message for runing statistical data that S203, the second central node are sent to content server.
Since content to be distributed is distributed in the 2nd CDN, the second central node can be calculated in be distributed
The amount of access information of each dimension in bis- CDN of Rong, i.e. the second central node can calculate operation statistical data.In second
It includes the operation statistics response message for runing statistical data that heart node is sent to content server.
Wherein, the central node in the embodiment of the present invention is provided with statistics default parameters in advance, which can be
First central node, or the second central node.
Specifically, the second central node is silent according to statistics if not including statistical parameter in operation statistics request message
Recognize amount of access information of the Parameter statistical analysis content to be distributed in the 2nd CDN.Correspondingly, the second central node is to content service
The operation statistical data in operation statistics response message that device is sent is corresponding with statistics default parameters.
If including statistical parameter in operation statistics request message, the operation statistical data in statistics response message is runed
It is to be configured according to the statistical parameter in operation statistics request message.
Preferably, operation statistical data include content to be distributed each reference position information amount of access information, to point
Content is sent out to believe in the amount of access information of at least one code rate, content to be distributed in the amount of access of the full content fragment of each code rate
At least one of the amount of access information of breath and content to be distributed in each measurement period.
Illustratively, the operation statistics response message that the second central node is sent to content server includes the following contents:
Content server according to above-mentioned operation count response message know content identification be 0110jmvod02 content in river
The amount of access information of Su Suzhou and Tianjin, the content first five of Law Firm Suzhou Jiangsu and Tianjin measurement period amount of access information,
In the content three content fragments Law Firm Suzhou Jiangsu and Tianjin amount of access information, and different code rate content in Law Firm Suzhou Jiangsu
With the amount of access information of Tianjin.
S204, content server send the content identification for including content to be distributed, content to be distributed to the first central node
In the storage location information of content server and the content distribution message of operation statistical data.
S205, the first central node download content to be distributed according to content identification and storage location information.
S204-S205 is identical as the S101-S102 in embodiment one in the embodiment of the present invention, is no longer gone to live in the household of one's in-laws on getting married in detail herein
It states.
S206, the first central node according to operation statistical data and the first CDN in whole fringe nodes status information,
It obtains at least one determining edge cache server to be distributed and need to distribute for each edge cache server to be distributed interior
Hold.
Specifically, the first central node is determined from whole fringe nodes of the first CDN wait divide according to operation statistical data
Fringe node is sent out, then determines at least one edge cache server to be distributed from each fringe node to be distributed, and be each
Edge cache server determination to be distributed need to be the content of the edge cache server distribution to be distributed.
First central node determines at least one edge cache server to be distributed and need to be each edge cache to be distributed
The detailed process of the content of server distribution, please refers to subsequent explanation.
S207, the first central node, which trigger each edge cache server downloading to be distributed, to be the content of itself distribution.
S208, each edge cache server to be distributed will need to be after the content itself distributed is downloaded, in first
Heart node sends confirmation message.
Each edge cache server to be distributed will need to be after the content itself distributed is downloaded, to the first central node
Confirmation message is sent, in order to which the first central node is determined content distribution to be distributed success.
S209, the first central node determine content to be distributed in each of the first CDN edge cache server to be distributed
Protection period.
For the content distributed in CDN there are the content protecting phase, which is to carry out mandatory protection to content to make it not
The time cycle being eliminated.
Specifically, if operation statistical data includes at least one measurement period and content to be distributed in each measurement period
Amount of access information, then the first central node determines to be distributed according to content to be distributed in the amount of access information of each measurement period
Protection period of the content in each of the first CDN edge cache server to be distributed.
Optionally, the first central node can choose previous measurement period that amount of access declines for the first time as content protecting
Phase.
Illustratively, in the examples described above, each system of the content at " Law Firm Suzhou Jiangsu " that content identification is 0110jmvod02
The amount of access in meter period declines appearance on day 4 for the first time, then the content is arranged in the content of " Law Firm Suzhou Jiangsu " in the first central node
Protection period is (4-1) × 24=72 hours.Each measurement period of the content that content identification is 0110jmvod02 in " Tianjin "
Amount of access decline for the first time appearance on day 3, then the first central node be arranged the content " Tianjin " the content protecting phase be (3-1)
× 24=48 hours.
Further, if in content distribution message including the preset content protecting phase, the first central node is true by itself
Fixed content to be distributed is carried out in the content protecting phase of each edge cache server to be distributed according to the preset content protecting phase
Amendment.
Optionally, the first central node can be using the access time longer content protecting phase as the final content protecting phase.
Illustratively, if the preset content protecting phase is 24 hours, the first central node access time, longer content was protected
The shield phase as the final content protecting phase, then content identification is 0110jmvod02 content protecting of the content at " Law Firm Suzhou Jiangsu "
Phase is finally 72 hours, and the content protecting phase in " Tianjin " is finally 48 hours.
If runing statistical data does not include the access of at least one measurement period and content to be distributed in each measurement period
Information is measured, then the first central node determines content to be distributed in the guarantor of each of the first CDN edge cache server to be distributed
The shield period is the preset content protecting phase.
Illustratively, in above-mentioned example, in " Tianjin " area, content identification is the amount of access of the content of 0110jmvod02
Decline suddenly in third day, can still force to occupy caching in this way in third day to avoid content.
S210, the first central node send to each edge cache server to be distributed and wait for point comprising content to be distributed at this
The setting of the protection period of hair side edge cache server is requested.
Request is set and is used to indicate each each protection period for distributing content self of edge cache server setting to be distributed,
Wherein, distribute content and belong to content to be distributed.
As can be seen that the first central node is determined according to the variation of the actual access amount of content in the embodiment of the present invention
The content protecting phase, in this way, both can prevent amount of access from rising but cross the case where content of protection period is eliminated, it can also
To prevent amount of access from having become very low but also the case where the content of protection period still occupies spatial cache.
The embodiment of the present invention provides a kind of content distribution method, is existed by increasing content to be distributed in content dispatch messages
The amount of access information of different dimensions in 2nd CDN, that is, increase the operation statistical number of content to be distributed different dimensions in the 2nd CDN
According to can accurately calculate edge cache server to be distributed and each when so that distributing content to be distributed in the first CDN
The content of edge cache server storage to be distributed, thus avoid the problem that edge cache server access is overloaded, it can be more preferable
The requirements for access for meeting user.
The first central node is when executing S206 in the embodiment of the present invention, if in operation statistical data including at least one ginseng
Location information and content to be distributed are examined in the amount of access information of each reference position information, then the first central node is according to operation
The status information of statistical data and whole fringe nodes in the first CDN determines at least one edge cache server to be distributed.
Specifically, as shown in figure 5, the method that the first central node determines at least one edge cache server to be distributed
Are as follows:
S206a, the first central node according to preset rules and content to be distributed each reference position information amount of access
Information determines at least one purpose reference position information from all referring to location information.
Wherein, preset rules can be greater than the reference position information of requesting threshold for selection amount of access, or root
Successively choose several reference position information of front according to the sequence of amount of access information from big to small, the embodiment of the present invention to this not
Make specific limit.
Illustratively, if requesting threshold is 3000000, the first central node determines " Law Firm Suzhou Jiangsu " in above-mentioned example
" Tianjin " is purpose reference position information.
S206b, for the reference position information of the first mesh at least one purpose reference position information, the first centromere
Point judges the reference position information in whole fringe nodes of the first CDN with the presence or absence of the location information of fringe node and the first mesh
It is identical.
Wherein, the reference position information of the first mesh is any one at least one purpose reference position information.
It is selected since purpose reference position information is the first central node according to operation statistical data, and the first center
Node is to be distributed content to be distributed in the first CDN, therefore, the first central node need to judge be in the first CDN
It is no to there is fringe node identical with purpose reference position information.
S206c, if it exists, then the first central node is by the position of fringe node identical with the reference position information of the first mesh
Confidence ceases the location information for being determined as the first fringe node to be distributed.
S206d, if it does not exist, then the first central node is chosen and the first purpose from the location information of whole fringe nodes
The smallest fringe node of the distance between reference position information is as the first fringe node to be distributed.
Illustratively, the location information of the fringe node in the first CDN are as follows: " Tianjin ", " Beijing " and " Nanjing ", the
The purpose reference position information that one central node determines are as follows: " Tianjin " and " Law Firm Suzhou Jiangsu ".Believe the fringe node position of first CDN
There is " Tianjin " in breath, therefore, " Tianjin " is determined as the location information of fringe node to be distributed by the first central node.First CDN
Fringe node location information in can not find " Law Firm Suzhou Jiangsu ", the therefore " river that the first central node will be nearest with " Law Firm Suzhou Jiangsu "
Southern Jiangsu capital " is determined as fringe node location information to be distributed.
If S206e, content distribution message further include purpose distribution location information, the first central node judges that purpose is distributed
Whether the location information of fringe node is contained in the location information for the fringe node to be distributed that previous step determines.
Wherein, purpose distribution fringe node is contained in purpose distribution location information.
If the location information of S206f, purpose distribution fringe node is not contained in the edge to be distributed that previous step determines
In the location information of node, then the location information of purpose distribution fringe node is determined as edge section to be distributed by the first central node
The location information of point.
If the location information of S206g, purpose distribution fringe node is contained in the edge section to be distributed that previous step determines
In the location information of point, then the location information for the fringe node to be distributed that previous step determines is the edge to be distributed finally determined
The location information of node.
It is understood that illustrating the first central node if including that purpose distributes location information in content distribution message
It has to distribute in all purposes distribution fringe node that location information includes in purpose and distributes content to be distributed.If the first center
Node does not include that purpose distributes fringe node with reference to runing in the fringe node to be distributed that statistical data determines, then the first centromere
Put the location information for needing the location information that purpose is distributed fringe node to be also determined as fringe node to be distributed.
Illustratively, distribute location information comprising purpose in content distribution message, it is " north which, which distributes location information,
Capital ", and the location information for the fringe node to be distributed that the first central node determines in above-mentioned steps is " Nanjing " and " day
Saliva " does not include " Beijing ", and therefore, " Beijing " is also determined as the location information of fringe node to be distributed by the first central node.
S206h, for the position of the first fringe node to be distributed in the location information of at least one fringe node to be distributed
Confidence breath, the first central node determination need to distribute the quantity N of content to be distributed, N >=1 for the first fringe node to be distributed.
Wherein, the first fringe node to be distributed is any one at least one fringe node to be distributed, and first is default
Threshold value can be requesting threshold.
Each fringe node to be distributed can store at least a content to be distributed, and the first central node is being determined wait divide
After sending out fringe node, determination need to distribute the quantity N of content to be distributed for each fringe node to be distributed.
Optionally, the first central node is according to content to be distributed in the amount of access information of the first fringe node to be distributed and
One preset threshold, determines N.
It should be noted that if distributing location information for the purpose of the location information of the first central node, and first center
Node is not belonging to the 2nd CDN, then the first central node uses existing content distribution method to determine being the first central node
Distribute the quantity of content to be distributed.
Illustratively, if requesting threshold is 3000000, the first central node determination need to distribute to be distributed for " Tianjin "
The quantity of content is 3000000/3000000=1, and the quantity of content to be distributed need to be distributed for " Nanjing " with reference to " Jiangsu Soviet Union
State " 10000000/3000000=3.
Wherein, the quantity of content to be distributed is also referred to as copy amount.
S206i, the first central node are according to preset condition, whole edge caches for including from the first fringe node to be distributed
In server, X edge cache server is chosen as candidate edge cache server.
Wherein, preset condition is that the storage space utilization of edge cache server is less than or equal to the second preset threshold,
And the attribute value of edge cache server is less than third predetermined threshold value, X >=1.
If S206j, N >=X, X candidate edge cache server is determined as edge to be distributed and delayed by the first central node
Deposit server.
If S206k, N < X, the first central node selects N number of candidate edge from X candidate edge cache server
Cache server, and N number of candidate edge cache server is determined as edge cache server to be distributed, N number of candidate edge is slow
Depositing server is the top n after X candidate edge cache server is arranged successively from big to small according to free memory.
Illustratively, if " Nanjing " and " Tianjin " is each to be left 2 and 5 candidate edge cache servers, " Jiang Sunan
The copy amount of capital " and " Tianjin " is respectively 3 and 1.The quantity 2 of the candidate edge cache server of " Nanjing " is less than
The copy amount 3 of " Nanjing ", therefore, the first central node is directly by 2 candidate edge buffer services of " Nanjing "
Device is as edge cache server to be distributed.The quantity 5 of the candidate edge cache server of " Tianjin " is greater than the copy of " Tianjin "
Quantity 1, therefore, the first central node select storage space utilization most from 5 candidate edge cache servers of " Tianjin "
1 low edge cache server is as edge cache server to be distributed.For " Beijing ", since the first central node can not
Content to be distributed is known in " Beijing " amount of access information, and therefore, the first central node can be according to existing content distribution method
Select space utilisation minimum, the best edge cache server of service state is as edge cache server to be distributed.
Further, the first central node is when executing S206 in the embodiment of the present invention, if including in operation statistical data
Operation statistical data include content to be distributed in the amount of access information of at least one code rate and content to be distributed in each code rate
The amount of access information of full content fragment, then the first central node is slow according to each edge in operation statistical data and the first CDN
The free memory numerical value of server is deposited, determination need to be the content of each edge cache server distribution to be distributed.
Specifically, as shown in fig. 6, slow for the first edge to be distributed at least one edge cache server to be distributed
Server is deposited, the first edge cache server to be distributed is any one at least one edge cache server to be distributed,
First central node determination need to be the method for the content of the first edge cache server distribution to be distributed are as follows:
S206w, the first central node determine the free memory numerical value of the first edge cache server to be distributed.
Specifically, free memory=the first edge cache the service to be distributed of the first edge cache server to be distributed
The edge cache server to be distributed of total memory space × space utilization rate threshold value-the first of device has currently used memory space.
S206x, the first central node judge the first edge cache server to be distributed free memory numerical value whether
Greater than the occupied space numerical value of content to be distributed.
If the free memory numerical value of S206y, the first edge cache server to be distributed is greater than or equal in be distributed
The occupied space numerical value of appearance, then content to be distributed is determined as being the first edge cache server to be distributed by the first central node
The content of distribution.
If the free memory numerical value of S206z, the first edge cache server to be distributed is less than accounting for for content to be distributed
With space values, then the first central node chooses the maximum code rate of amount of access information, and in same code rate, chooses the code rate
The middle maximum content fragment of amount of access information is determined as being the content of the first edge cache server distribution to be distributed, until the
The free memory numerical value of one edge cache server to be distributed is zero.
Illustratively, if the available storage of two of " Nanjing " edge cache servers to be distributed is empty in above-mentioned example
Between be respectively 2GB and 1GB (wherein, 1GB=1024MB), the free memory of the edge cache server to be distributed of " Tianjin "
For 10GB, the occupied space of content to be distributed is 1.75GB, then the first central node directly determines complete content to be distributed
For need to be " Tianjin " edge cache server to be distributed distribution content, complete content to be distributed is determined as being " river
The content that the edge cache server to be distributed that free memory is 2GB in southern Jiangsu capital " is distributed.
The edge cache server to be distributed for being 1GB for free memory in " Nanjing ", due to content identification
The amount of access of 1MB is apparently higher than in the amount of access that code rate is 3MB for the content of 0110jmvod02, therefore the first central node is excellent
Select code rate for the content of 3MB.Under same code rate, the amount of access information of each content fragment is followed successively by ending from high to low
20 minutes, beginning 20 minutes and 20 minutes intermediate, therefore, it be code rate is 3MB that the first central node, which chooses the sequence of content fragment,
When ending 20 minutes, beginning 20 minutes, intermediate 20 minutes content fragments, followed by code rate be 1MB ending 20 minutes, open
First 20 minutes and intermediate 20 minutes fragments.In this order, the first central node is choosing the ending 20 that code rate is 3MB
Minute, after 20 minutes or so content fragments of beginning, the edge cache server to be distributed that free memory is 1GB is just no longer
Remaining free memory, therefore, the first central node determination need to be 1G for free memory in " Nanjing " wait divide
The content of hair side edge cache server distribution be code rate be 3MB ending 20 minutes and beginning 20 minutes content fragment.
For the edge cache server to be distributed in " Beijing ", the first central node according to existing content distribution method into
Row respective handling.
In conclusion content distribution method provided in an embodiment of the present invention, the first central node exists according to content to be distributed
True amount of access information is determined in 2nd CDN distributes in which edge cache server in the first CDN, and determining need to
To be the content distributed in each edge cache server to be distributed, can be avoided asking for edge cache server access overload
Topic, better meets the requirements for access of user.
Embodiment three
The embodiment of the present invention provides a kind of central node 1, and the central node 1 is the first central node, the centromere
Point 1 is for executing step performed by the first central node in above method.The central node 1 may include corresponding steps
Corresponding module.As shown in fig. 7, the central node 1 includes:
Acquiring unit 20, for obtaining content to be distributed in first content distribution network CDN and in the 2nd CDN
Statistical data is runed, the operation statistical data is in the 2nd CDN to the statistics of the amount of access of the content to be distributed
Data, the central node belong to the first CDN.
Determination unit 21, the operation statistical data and described first for being got according to the acquiring unit 20
The status information of whole fringe nodes in CDN, obtains the Distribution Results of content to be distributed, and the Distribution Results include determining
At least one edge cache server to be distributed and the content that need to distribute for each edge cache server to be distributed
Dispatching Unit 22, the Distribution Results for being determined according to the determination unit 21 are each edge to be distributed
Cache server distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed.
Further, as shown in figure 8, the central node 1 further includes receiving unit 23,
The receiving unit 23, for the content distribution message that reception content server is sent, the content distribution message
Content identification, the content to be distributed including the content to be distributed the content server storage location information and
The operation statistical data.
Further, as shown in figure 8, the central node 1 further includes download unit 24,
The download unit 24, the content identification and the storage position for being received according to the receiving unit 23
Confidence breath, downloads the content to be distributed.
Optionally, the operation statistical data includes at least one reference position information and the content to be distributed every
The amount of access information of a reference position information, the status information include the position of each fringe node in the first CDN
Information.
Further, the determination unit 21, is specifically used for:
According to preset rules and the content to be distributed each reference position information amount of access information, from the whole
At least one purpose reference position information is determined in the information of reference position；
It is that each purpose reference position information chooses a side to be distributed from the location information of whole fringe nodes
The location information of edge node, the fringe node to be distributed include at least one edge cache server；
According to the location information of each fringe node to be distributed, determine that at least one is waited for point for each fringe node to be distributed
Hair side edge cache server.
Further, for the reference position information of the first mesh at least one described purpose reference position information, institute
Determination unit 21 is stated, is specifically used for:
If in the whole fringe node, there are the reference position information of the location information of fringe node and first mesh
It is identical, then the location information of the fringe node is determined as to the location information of the first fringe node to be distributed；
If the reference position information of the location information and first mesh of the whole fringe node is all different, from institute
State in the location information of whole fringe nodes choose the first fringe node to be distributed location information, wherein described first to
The distance between the location information of the fringe node of distribution and the reference position information of first mesh are minimum.
Further, the content distribution message further includes purpose distribution location information.
Correspondingly, the determination unit 21, is also used in the location information from whole fringe nodes be each mesh
Reference position information choose the location information of a fringe node to be distributed after, and for each fringe node to be distributed
Before location information determines at least one edge cache server to be distributed, if purpose distribution fringe node location information not by
It is contained in the location information of at least one fringe node to be distributed, then it is the location information of purpose distribution fringe node is true
It is set to the location information of fringe node to be distributed, the purpose distribution fringe node is contained in the distribution location information of the mother
In.
Further, the status information further includes that the storage of each edge cache server in the first CDN is empty
Between utilization rate, the attribute value of each edge cache server and each edge cache server memory space numerical value.
Correspondingly, for the first fringe node to be distributed in the location information of at least one fringe node to be distributed
Location information for, the determination unit 21 is specifically used for:
According to the content to be distributed the described first fringe node to be distributed amount of access information and the first preset threshold,
Determination need to distribute the quantity N of the content to be distributed, N >=1 for the described first fringe node to be distributed；
According to preset condition, from whole edge cache servers that the described first fringe node to be distributed includes, X is chosen
A edge cache server is as candidate edge cache server, wherein the preset condition is depositing for edge cache server
It stores up space utilization rate and is less than or equal to the second preset threshold, and the attribute value of the edge cache server is less than third and presets threshold
Value, X >=1；
If N >=X, X candidate edge cache server is determined as edge cache server to be distributed；
If N < X, N number of candidate edge cache server is selected from the X candidate edge cache server, and will
N number of candidate edge cache server is determined as edge cache server to be distributed, N number of candidate edge cache server
Top n after being arranged successively from big to small for the X candidate edge cache server according to free memory.
Optionally, the operation statistical data include the content to be distributed at least one code rate amount of access information and
Amount of access information of the content to be distributed in the full content fragment of each code rate.
Correspondingly, for the first edge cache server to be distributed at least one edge cache server to be distributed,
The determination unit 21, is specifically used for:
Determine the free memory numerical value of the described first edge cache server to be distributed；
If the free memory numerical value of the first edge cache server to be distributed is less than the content to be distributed
Occupied space numerical value then exists according to the content to be distributed in the amount of access information of at least one code rate and the content to be distributed
The amount of access information of the full content fragment of each code rate, determining that at least one content fragment is need to be the described first side to be distributed
The occupied space numerical value of the content of edge cache server distribution, at least one content fragment is equal to the described first side to be distributed
The free memory numerical value of edge cache server；
If the free memory numerical value of the first edge cache server to be distributed is greater than or equal to described to be distributed
The content to be distributed then is determined as being the described first edge cache server to be distributed point by the occupied space numerical value of content
The content of hair.
Further, the determination unit 21, is specifically used for:
Choose the maximum code rate of amount of access information；
According to the maximum code rate of the amount of access and the content to be distributed the full content fragment of the code rate access
Information is measured, the maximum content fragment of amount of access information in the code rate is determined as need to be the described first edge cache service to be distributed
The content of device distribution, until the free memory numerical value of the described first edge cache server to be distributed is zero.
Further, the receiving unit 23 is also used in the determination unit 21 according to the Distribution Results, is each
Edge cache server to be distributed distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed
Later, the confirmation message that each edge cache server to be distributed is sent is received.
Optionally, the operation statistical data includes at least one measurement period and the content to be distributed in each statistics
The amount of access information in period.
Correspondingly, the determination unit 21, is also used in the Dispatching Unit according to the Distribution Results, for each wait divide
After hair side edge cache server distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed,
According to the content to be distributed in the amount of access information of each measurement period, determine the content to be distributed in the first CDN
The protection period of each edge cache server to be distributed.
Further, as shown in figure 8, the central node 1 further includes transmission unit 25,
The transmission unit 25, for sending setting request to each edge cache server to be distributed, the setting disappears
Protection period of the breath comprising the determining content to be distributed of the determination unit 21 in the edge cache server to be distributed, institute
State setting message and be used to indicate each each protection period for distributing content self of edge cache server to be distributed setting, it is described
Distribution content belongs to the content to be distributed.
It is understood that the central node 1 of the present embodiment only according to the central node 1 realize function carry out patrol
It collects and divides, in practical application, the superposition or fractionation of said units can be carried out.And 1 institute of central node that the embodiment provides
The function of realization and content distribution method provided by the above embodiment correspond, which is realized more
Detailed process flow, has been described in detail in above method embodiment, is not described in detail herein.
Another embodiment of the present invention provides a kind of central nodes, as shown in figure 9, the central node include interface circuit 20,
Processor 21, memory 22 and system bus 23.
Wherein, pass through the system bus 23 between the interface circuit 20, the processor 21 and the memory 22
Connection, and complete communication each other.
It will be understood by those skilled in the art that the structure of central node shown in Fig. 9 is not the restriction to central node,
It may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
Specifically, the central node executes in described in above method embodiment when central node operation
Hold distribution method.Specific content distribution method can be found in the associated description in above-mentioned embodiment as shown in figures 3 to 6, herein
It repeats no more.
Specifically, interface circuit 20 for realizing the central node respectively with content server and edge cache server it
Between communication connection.
Specifically, the memory 22 can be used for storing software program and application module, processor 21 is deposited by operation
The software program and application module in memory 22 are stored up, at the various function application and data of central node
Reason.Memory 22 can mainly include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program (for example distributing content to be distributed) needed for a few function etc.；Storage data area can store content to be distributed etc..
Wherein, the memory 22 may include volatile memory, such as high-speed random access memory (RAM,
Random Access Memory), the memory 22 also may include nonvolatile memory, and for example, at least a disk is deposited
Memory device, flush memory device or other volatile solid-state parts.
Specifically, the processor 21 is the control centre of central node, using various interfaces and connection it is entire in
The various pieces of heart node, by running or executing the software program being stored in memory 22 and/or application module, and tune
With the data being stored in memory 22, the various functions and processing data of implementation center's node, to be carried out to central node
Integral monitoring.
Wherein, processor 21 can be central processing unit (CPU, Central Processing Unit).The processor
101 can also for other general processors, digital signal processor (DSP, Digital Signal Processing) or its
His programmable logic device or transistor logic, discrete hardware components etc..General processor can be microprocessor or
Person's processor is also possible to any conventional processor etc..
The system bus 23 may include data/address bus, power bus, control bus and signal condition bus etc..This reality
It applies for clear explanation in example, various buses is all illustrated as system bus 23 in Fig. 9.
Central node in the embodiment of the present invention is with reference to operation statistical data, at least one of the first CDN determined
Edge cache server to be distributed and the content distribution content to be distributed that need to distribute for each edge cache server to be distributed
It can really and accurately reflect content to be distributed in the amount of access information of the first CDN, in this way, not only increasing each edge to be distributed
The storage space utilization of cache server, and can satisfy the requirements for access of user, it is slow to solve edge in the prior art
The problem of depositing server access overload.
Example IV
The embodiment of the present invention provides a kind of content server 1, and the content server 1 is interior in above method for executing
Hold step performed by server.The content server 1 may include module corresponding to corresponding steps.As shown in Figure 10,
The content server 1 includes:
Acquiring unit 30, for obtaining operation statistical data, the operation statistical data is in the second content distributing network
To the statistical data of the amount of access of content to be distributed in CDN.
Transmission unit 31, for sending content distribution message to the first central node, the content distribution message includes institute
State the content identification of content to be distributed, the content to be distributed the content server storage location information and described obtain
The operation statistical data that unit 30 is got is taken, the content distribution message is used to indicate first central node for institute
It states content to be distributed to distribute in the first CDN, first central node belongs to the first CDN.
Further, the transmission unit 31, if specifically for being got in local content disposition operation management table
The mark of 2nd CDN, then send operation statistics request message to the second central node, and second central node belongs to described the
Two CDN, local content disposition operation management table include the content identification of the mark and the content to be distributed of the 2nd CDN
Mapping relations, the operation statistics request message includes the content identification of the content to be distributed, and operation statistics is requested
Message is for requesting second central node to statistically analyze amount of access information of the content to be distributed in the 2nd CDN.
Further, as shown in figure 11, content server 1 further includes receiving unit 32,
The receiving unit 32 counts response message, the fortune for receiving the operation that second central node is sent
Battalion's statistics response message includes the operation statistical data.
Further, the operation statistics request message further includes statistical parameter, and the operation statistical message is for requesting
Second central node, which statisticallys analyze amount of access of the content to be distributed in the 2nd CDN according to the statistical parameter, to be believed
Breath.
Preferably, the statistical parameter is comprising in region granular information, code rate, timestamp information, amount of access measurement period
At least one.
It is understood that the content server 1 of the present embodiment only according to the content server 1 realize function carry out
Logical partitioning, in practical application, the superposition or fractionation of said units can be carried out.And the content service that the embodiment provides
The content distribution method that the function and above method embodiment that device 1 is realized provide corresponds, for 1 institute of content server
The more detailed process flow realized, has been described in detail in above method embodiment, has been not described in detail herein.
Another embodiment of the present invention provides a kind of content servers, and as shown in figure 12, which includes interface electricity
Road 40, processor 41, memory 42 and system bus 43.
Wherein, pass through the system bus 43 between the interface circuit 40, the processor 41 and the memory 42
Connection, and complete communication each other.
It will be understood by those skilled in the art that the structure of content server shown in Figure 12 is not to content server
It limits, may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
Specifically, the content server executes such as Fig. 3-Fig. 6 the embodiment described when content server operation
Content distribution method.Specific content distribution method can be found in the associated description in above-mentioned embodiment as shown in figures 3 to 6,
Details are not described herein again.
Specifically, interface circuit 40 is for realizing the communication connection between the content server and central node.
Specifically, the memory 42 can be used for storing software program and application module, processor 41 is deposited by operation
The software program and application module in memory 42 are stored up, at the various function application and data of content server
Reason.Memory 42 can mainly include that the storing program area storing program area can be needed for storage program area, at least one function
Application program (for example sending content distribution message function) etc..
Wherein, the memory 42 may include volatile memory, such as high-speed random access memory (RAM,
Random Access Memory), the memory 42 also may include nonvolatile memory, and for example, at least a disk is deposited
Memory device, flush memory device or other volatile solid-state parts.
Specifically, the processor 41 is the control centre of content server, it is entire using various interfaces and connection
The various pieces of content server, by running or executing the software program being stored in memory 42 and/or application module, with
And the data being stored in memory 42 are called, the various functions and processing data of content server are executed, to take to content
Business device carries out integral monitoring.
Wherein, processor 41 can be central processing unit (CPU, Central Processing Unit).The processor
41 can also for other general processors, digital signal processor (DSP, Digital Signal Processing) or its
His programmable logic device or transistor logic, discrete hardware components etc..General processor can be microprocessor or
Person's processor is also possible to any conventional processor etc..
The system bus 43 may include data/address bus, power bus, control bus and signal condition bus etc..This reality
It applies for clear explanation in example, various buses is all illustrated as system bus 43 in Figure 12.
Content server in the embodiment of the present invention is when sending content distribution message to the first central node, in addition to will be to
The content identification and content to be distributed for distributing content in the storage location information of the content server are sent to the first centromere
Other than point, the statistical data of the amount of access of content to be distributed will be also sent in first in the second content distributing network CDN
Heart node refers to the amount of access of content to be distributed when the first central node being enabled to distribute content to be distributed in the first CDN
Information, accurately determines the edge cache server to be distributed in the first CDN and need to be each edge cache service to be distributed
The content of device distribution, to improve the storage space utilization of each edge cache server to be distributed, and can satisfy
The requirements for access of user solves the problems, such as the overload of edge cache server access in the prior art.
Embodiment five
The embodiment of the present invention provides a kind of content distribution system, the content distribution system include as described in embodiment three in
At least one fringe node of heart node, the content server as described in example IV and the central node management, each
Fringe node is made of at least one edge cache server, wherein is connected between content server and central node by network
It connects, passes through network connection between central node and each edge cache server.
For the more detailed process flow that central node is realized, it has been described in detail in above-described embodiment three,
It is not described in detail herein.
For the more detailed process flow that content server is realized, does in above-described embodiment four and retouched in detail
It states, is not described in detail herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, only with above-mentioned each function
The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds
Block is completed, i.e., the internal structure of device is divided into different functional modules, to complete all or part of function described above
Energy.The specific work process of the system, apparatus, and unit of foregoing description, can be with reference to corresponding in preceding method embodiment
Journey, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, module or unit
Division, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
Unit may or may not be physically separated as illustrated by the separation member, shown as a unit
Component may or may not be physical unit, it can and it is in one place, or may be distributed over multiple networks
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Although the alternative embodiment of the application has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the application range.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (29)
1. a kind of content distribution method characterized by comprising
First central node obtains the content to be distributed in first content distribution network CDN and the operation system in the 2nd CDN
It counts, the operation statistical data is in the 2nd CDN to the statistical data of the amount of access of the content to be distributed, institute
It states the first central node and belongs to the first CDN；
First central node is believed according to the state of whole fringe nodes in the operation statistical data and the first CDN
Breath, obtains the Distribution Results of content to be distributed, and the Distribution Results include at least one determining edge cache service to be distributed
Device and the content that need to distribute for each edge cache server to be distributed；Wherein, each fringe node packet in the first CDN
Contain one or more edge cache servers；
First central node is described to be distributed for each edge cache server distribution to be distributed according to the Distribution Results
The content distributed for the edge cache server to be distributed is needed in content.
2. content distribution method according to claim 1, which is characterized in that first central node is obtained first
Content to be distributed in CDN and the operation statistical data in the 2nd CDN, comprising:
The content distribution message that the first central node reception content server is sent, the content distribution message include described
The content identification of content to be distributed, the content to be distributed the content server storage location information and the operation
Statistical data；
First central node downloads the content to be distributed according to the content identification and the storage location information.
3. content distribution method according to claim 1, which is characterized in that the operation statistical data includes at least one
In the amount of access information of each reference position information, the status information includes for reference position information and the content to be distributed
The location information of each fringe node in first CDN；
Correspondingly, first central node is according to whole fringe nodes in the operation statistical data and the first CDN
Status information, obtain the Distribution Results of content to be distributed, specifically include:
First central node is believed according to preset rules and the content to be distributed in the amount of access of each reference position information
Breath, from described all referring to determining at least one purpose reference position information in location information；
First central node is that each purpose reference position information is chosen from the location information of whole fringe nodes
The location information of one fringe node to be distributed, the fringe node to be distributed include at least one edge cache server；
First central node is determined according to the location information of each fringe node to be distributed for each fringe node to be distributed
At least one edge cache server to be distributed.
4. content distribution method according to claim 2, which is characterized in that the operation statistical data includes at least one
In the amount of access information of each reference position information, the status information includes for reference position information and the content to be distributed
The location information of each fringe node in first CDN；
Correspondingly, first central node is according to whole fringe nodes in the operation statistical data and the first CDN
Status information, obtain the Distribution Results of content to be distributed, specifically include:
First central node is believed according to preset rules and the content to be distributed in the amount of access of each reference position information
Breath, from described all referring to determining at least one purpose reference position information in location information；
First central node is that each purpose reference position information is chosen from the location information of whole fringe nodes
The location information of one fringe node to be distributed, the fringe node to be distributed include at least one edge cache server；
First central node is determined according to the location information of each fringe node to be distributed for each fringe node to be distributed
At least one edge cache server to be distributed.
5. content distribution method according to claim 3, which is characterized in that at least one described purpose reference position
The reference position information of the first mesh in information, first central node are from the location information of whole fringe nodes
The reference position information of first mesh chooses the location information of the first fringe node to be distributed, specifically includes:
If it is identical as the reference position information of first mesh that there are the location informations of fringe node in the whole fringe node,
Then the location information of the fringe node is determined as the location information of the first fringe node to be distributed by first central node；
If the reference position information of the location information and first mesh of the whole fringe node is all different, described first
Central node chooses the location information of the first fringe node to be distributed from the location information of whole fringe nodes, wherein
The location information and the distance between the reference position information of first mesh of first fringe node to be distributed are minimum.
6. content distribution method according to claim 5, which is characterized in that the content distribution message further includes purpose point
Send out location information；
Correspondingly, first central node is each purpose reference bit confidence from the location information of whole fringe nodes
After breath chooses the location information of a fringe node to be distributed, and first central node is each fringe node to be distributed
Location information determine at least one edge cache server to be distributed before, the content distribution method further include:
If the location information of purpose distribution fringe node is not contained in the location information of at least one fringe node to be distributed,
Then the location information of purpose distribution fringe node is determined as the position of fringe node to be distributed by first central node
Information, the purpose distribution fringe node are contained in the purpose distribution location information.
7. content distribution method according to claim 6, which is characterized in that the status information further includes described first
The storage space utilization of each edge cache server in CDN, the attribute value of each edge cache server and each side
The memory space numerical value of edge cache server；
Correspondingly, for the position of the first fringe node to be distributed in the location information of at least one fringe node to be distributed
For confidence breath, first central node is the first edge to be distributed according to the location information of the first fringe node to be distributed
Node determines at least one edge cache server to be distributed, specifically includes:
First central node according to the content to be distributed the described first fringe node to be distributed amount of access information and
First preset threshold, determination need to distribute the quantity N of the content to be distributed, N >=1 for the described first fringe node to be distributed；
According to preset condition, the whole edge caches for including from the described first fringe node to be distributed take first central node
It is engaged in device, chooses X edge cache server as candidate edge cache server, wherein the preset condition is slow for edge
The storage space utilization for depositing server is less than or equal to the second preset threshold, and the attribute value of the edge cache server is small
In third predetermined threshold value, X >=1；
If N >=X, X candidate edge cache server is determined as edge cache service to be distributed by first central node
Device；
If N < X, it is slow that first central node selects N number of candidate edge from the X candidate edge cache server
Server is deposited, and N number of candidate edge cache server is determined as edge cache server to be distributed, N number of candidate
Edge cache server is after the X candidate edge cache server is arranged successively from big to small according to free memory
Top n.
8. content distribution method according to any one of claims 1-7, which is characterized in that the operation statistical data
Including the content to be distributed at least one code rate amount of access information and the content to be distributed each code rate whole
The amount of access information of content fragment；
For the first edge cache server to be distributed at least one edge cache server to be distributed, first center
Node determination need to be the method for the content of the described first edge cache server distribution to be distributed, comprising:
First central node determines the free memory numerical value of the described first edge cache server to be distributed；
If the free memory numerical value of the first edge cache server to be distributed is less than the occupancy of the content to be distributed
Space values, then first central node is according to the content to be distributed in the amount of access information of at least one code rate and described
For content to be distributed in the amount of access information of the full content fragment of each code rate, it need to be described for determining that at least one content fragment is
The content of first edge cache server distribution to be distributed, the occupied space numerical value of at least one content fragment is equal to described
The free memory numerical value of first edge cache server to be distributed；
If the free memory numerical value of the first edge cache server to be distributed is greater than or equal to the content to be distributed
Occupied space numerical value, then the content to be distributed is determined as being the described first edge to be distributed by first central node
The content of cache server distribution.
9. content distribution method according to claim 8, which is characterized in that first central node is according to described wait divide
Send out content at least one code rate amount of access information and the content to be distributed the full content fragment of each code rate visit
The amount of asking information determines that at least one content fragment is the content that need to be the described first edge cache server distribution to be distributed, tool
Body includes:
First central node chooses the maximum code rate of amount of access information；
First central node is according to the maximum code rate of the amount of access and the content to be distributed in the whole of the code rate
The amount of access information for holding fragment, the maximum content fragment of amount of access information in the code rate is determined as need to be to be distributed for described first
The content of edge cache server distribution, until the free memory numerical value of the described first edge cache server to be distributed is
Zero.
10. content distribution method according to claim 8, which is characterized in that the operation statistical data includes at least one
The amount of access information of a measurement period and the content to be distributed in each measurement period；
Correspondingly, first central node distributes institute according to the Distribution Results, for each edge cache server to be distributed
After stating the content for needing to distribute in content to be distributed for the edge cache server to be distributed, the content distribution method is also wrapped
It includes:
First central node, in the amount of access information of each measurement period, determines described wait divide according to the content to be distributed
Content is sent out in the protection period of each of the first CDN edge cache server to be distributed；
First central node sends setting request to each edge cache server to be distributed, and the setting message includes institute
Content to be distributed is stated in the protection period of the edge cache server to be distributed, the setting message is used to indicate each to be distributed
Each protection period for distributing content self of edge cache server setting, the content of having distributed belong to the content to be distributed.
11. content distribution method according to claim 9, which is characterized in that the operation statistical data includes at least one
The amount of access information of a measurement period and the content to be distributed in each measurement period；
Correspondingly, first central node distributes institute according to the Distribution Results, for each edge cache server to be distributed
After stating the content for needing to distribute in content to be distributed for the edge cache server to be distributed, the content distribution method is also wrapped
It includes:
First central node, in the amount of access information of each measurement period, determines described wait divide according to the content to be distributed
Content is sent out in the protection period of each of the first CDN edge cache server to be distributed；
First central node sends setting request to each edge cache server to be distributed, and the setting message includes institute
Content to be distributed is stated in the protection period of the edge cache server to be distributed, the setting message is used to indicate each to be distributed
Each protection period for distributing content self of edge cache server setting, the content of having distributed belong to the content to be distributed.
12. a kind of content distribution method characterized by comprising
Content server obtains operation statistical data, and the operation statistical data is to treat in the second content distributing network CDN
Distribute the statistical data of the amount of access of content；
The content server sends content distribution message to the first central node, and the content distribution message includes described wait divide
Send out the content identification of content, the content to be distributed is counted in the storage location information of the content server and the operation
Data, the content distribution message are used to indicate first central node and distribute the content to be distributed in the first CDN,
First central node belongs to the first CDN.
13. content distribution method according to claim 12, which is characterized in that the content server obtains operation statistics
Data specifically include:
If the content server gets the mark of the 2nd CDN in local content disposition operation management table, described interior
Holding server and sends operation statistics request message to the second central node, second central node belongs to the 2nd CDN, this
The content disposition operation management table on ground includes that the mark of the 2nd CDN is closed with the mapping of the content identification of the content to be distributed
System, the operation statistics request message include the content identification of the content to be distributed, and the operation statistics request message is used for
Second central node is requested to statistically analyze amount of access information of the content to be distributed in the 2nd CDN；
The content server receives the operation statistics response message that second central node is sent, the operation statistics response
Message includes the operation statistical data.
14. content distribution method according to claim 13, which is characterized in that the operation counts request message and further includes
Statistical parameter, the operation statistical message is for requesting second central node according to statistical parameter statistical analysis
Amount of access information of the content to be distributed in the 2nd CDN, the statistical parameter include region granular information, code rate, timestamp letter
At least one of breath, amount of access measurement period.
15. a kind of central node, which is characterized in that the central node is the first central node, comprising:
Acquiring unit, for obtaining the content to be distributed in first content distribution network CDN and the operation system in the 2nd CDN
It counts, the operation statistical data is in the 2nd CDN to the statistical data of the amount of access of the content to be distributed, institute
It states central node and belongs to the first CDN；
Determination unit, for complete in the operation statistical data according to the information acquired by the acquisition unit and the first CDN
The status information of portion's fringe node, obtains the Distribution Results of content to be distributed, and the Distribution Results include at least one determining
Edge cache server to be distributed and the content that need to distribute for each edge cache server to be distributed；Wherein, the first CDN
In each fringe node include one or more edge cache servers；
Dispatching Unit, the Distribution Results for being determined according to the determination unit are each edge cache service to be distributed
Device distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed.
16. central node according to claim 15, which is characterized in that the central node further includes receiving unit,
The receiving unit, for the content distribution message that reception content server is sent, the content distribution message includes institute
State the content identification of content to be distributed, the content to be distributed the content server storage location information and the fortune
Seek statistical data；
The central node further includes download unit,
The download unit, the content identification and the storage location information for being received according to the receiving unit,
Download the content to be distributed.
17. central node according to claim 15, which is characterized in that the operation statistical data includes at least one ginseng
Location information and the content to be distributed are examined in the amount of access information of each reference position information, the status information includes institute
State the location information of each fringe node in the first CDN；
The determination unit, is specifically used for:
According to preset rules and the content to be distributed each reference position information amount of access information, from it is described all referring to
At least one purpose reference position information is determined in location information；
It is that each purpose reference position information chooses an edge section to be distributed from the location information of whole fringe nodes
The location information of point, the fringe node to be distributed include at least one edge cache server；
According to the location information of each fringe node to be distributed, at least one side to be distributed is determined for each fringe node to be distributed
Edge cache server.
18. central node according to claim 16, which is characterized in that the operation statistical data includes at least one ginseng
Location information and the content to be distributed are examined in the amount of access information of each reference position information, the status information includes institute
State the location information of each fringe node in the first CDN；
The determination unit, is specifically used for:
According to preset rules and the content to be distributed each reference position information amount of access information, from it is described all referring to
At least one purpose reference position information is determined in location information；
It is that each purpose reference position information chooses an edge section to be distributed from the location information of whole fringe nodes
The location information of point, the fringe node to be distributed include at least one edge cache server；
According to the location information of each fringe node to be distributed, at least one side to be distributed is determined for each fringe node to be distributed
Edge cache server.
19. central node according to claim 17, which is characterized in that at least one described purpose reference bit confidence
The reference position information of the first mesh in breath, the determination unit are specifically used for:
If it is identical as the reference position information of first mesh that there are the location informations of fringe node in the whole fringe node,
The location information of the fringe node is then determined as to the location information of the first fringe node to be distributed；
If the reference position information of location information and first mesh of the whole fringe node is all different, from it is described entirely
The location information of the first fringe node to be distributed is chosen in the location information of portion's fringe node, wherein described first is to be distributed
Fringe node location information and the distance between the reference position information of first mesh it is minimum.
20. central node according to claim 19, which is characterized in that the content distribution message further includes purpose distribution
Location information；
The determination unit is also used in the location information from whole fringe nodes be each purpose reference position information
After the location information for choosing a fringe node to be distributed, and determined extremely for the location information of each fringe node to be distributed
Before a few edge cache server to be distributed, if the location information of purpose distribution fringe node is not contained at least one
In the location information of fringe node to be distributed, then the location information of purpose distribution fringe node is determined as edge to be distributed
The location information of node, the purpose distribution fringe node are contained in the purpose distribution location information.
21. central node according to claim 20, which is characterized in that the status information further includes the first CDN
In the storage space utilization of each edge cache server, the attribute value of each edge cache server and each edge it is slow
Deposit the memory space numerical value of server；
For the location information of the first fringe node to be distributed in the location information of at least one fringe node to be distributed
For, the determination unit is specifically used for:
According to the content to be distributed in the amount of access information and the first preset threshold of the described first fringe node to be distributed, determine
The quantity N of the content to be distributed, N >=1 need to be distributed for the described first fringe node to be distributed；
According to preset condition, from whole edge cache servers that the described first fringe node to be distributed includes, X side is chosen
Edge cache server is as candidate edge cache server, wherein the preset condition is that the storage of edge cache server is empty
Between utilization rate be less than or equal to the second preset threshold, and the attribute value of the edge cache server be less than third predetermined threshold value, X
≥1；
If N >=X, X candidate edge cache server is determined as edge cache server to be distributed；
If N < X, N number of candidate edge cache server is selected from the X candidate edge cache server, and will be described
N number of candidate edge cache server is determined as edge cache server to be distributed, and N number of candidate edge cache server is institute
State the top n after X candidate edge cache server is arranged successively from big to small according to free memory.
22. central node described in any one of 5-21 according to claim 1, which is characterized in that the operation statistical data
Including the content to be distributed at least one code rate amount of access information and the content to be distributed each code rate whole
The amount of access information of content fragment；
It is described determining single for the first edge cache server to be distributed at least one edge cache server to be distributed
Member is specifically used for:
Determine the free memory numerical value of the described first edge cache server to be distributed；
If the free memory numerical value of the first edge cache server to be distributed is less than the occupancy of the content to be distributed
Space values, then according to the content to be distributed in the amount of access information of at least one code rate and the content to be distributed each
The amount of access information of the full content fragment of code rate, determining that at least one content fragment is need to be that the described first edge to be distributed is slow
The content of server distribution is deposited, the occupied space numerical value of at least one content fragment is slow equal to the described first edge to be distributed
Deposit the free memory numerical value of server；
If the free memory numerical value of the first edge cache server to be distributed is greater than or equal to the content to be distributed
Occupied space numerical value, then the content to be distributed is determined as need to be the described first edge cache server to be distributed distribution
Content.
23. central node according to claim 22, which is characterized in that the determination unit is specifically used for:
Choose the maximum code rate of amount of access information；
Believed according to the maximum code rate of the amount of access and the content to be distributed in the amount of access of the full content fragment of the code rate
The maximum content fragment of amount of access information in the code rate is determined as being the described first edge cache server to be distributed point by breath
The content of hair, until the free memory numerical value of the described first edge cache server to be distributed is zero.
24. central node according to claim 22, which is characterized in that the operation statistical data includes at least one system
Period and the content to be distributed are counted in the amount of access information of each measurement period；
The determination unit is also used in the Dispatching Unit according to the Distribution Results, for each edge cache clothes to be distributed
After business device distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed, according to described wait divide
Content is sent out in the amount of access information of each measurement period, determines the content to be distributed on the side to be distributed each of the first CDN
The protection period of edge cache server；
The central node further includes transmission unit,
The transmission unit, for sending setting request to each edge cache server to be distributed, the setting message includes
In the protection period of the edge cache server to be distributed, the setting disappears the content to be distributed that the determination unit determines
Breath is used to indicate each each protection period for distributing content self of edge cache server setting to be distributed, described to have distributed content
Belong to the content to be distributed.
25. central node according to claim 23, which is characterized in that the operation statistical data includes at least one system
Period and the content to be distributed are counted in the amount of access information of each measurement period；
The determination unit is also used in the Dispatching Unit according to the Distribution Results, for each edge cache clothes to be distributed
After business device distributes the content for needing to distribute in the content to be distributed for the edge cache server to be distributed, according to described wait divide
Content is sent out in the amount of access information of each measurement period, determines the content to be distributed on the side to be distributed each of the first CDN
The protection period of edge cache server；
The central node further includes transmission unit,
The transmission unit, for sending setting request to each edge cache server to be distributed, the setting message includes
In the protection period of the edge cache server to be distributed, the setting disappears the content to be distributed that the determination unit determines
Breath is used to indicate each each protection period for distributing content self of edge cache server setting to be distributed, described to have distributed content
Belong to the content to be distributed.
26. a kind of content server characterized by comprising
Acquiring unit, for obtaining operation statistical data, the operation statistical data is right in the second content distributing network CDN
The statistical data of the amount of access of content to be distributed；
Transmission unit, for sending content distribution message to the first central node, the content distribution message includes described wait divide
Send out the content identification of content, the content to be distributed the content server storage location information and the acquiring unit
The operation statistical data got, the content distribution message is used to indicate first central node will be described to be distributed
Content is distributed in the first CDN, and first central node belongs to the first CDN.
27. content server according to claim 26, which is characterized in that
The transmission unit, if specifically for the mark for getting the 2nd CDN in local content disposition operation management table,
Operation statistics request message is sent to the second central node, second central node belongs to the 2nd CDN, local content
Deployment operation management table includes the mark and the mapping relations of the content identification of the content to be distributed of the 2nd CDN, described
Operation statistics request message includes the content identification of the content to be distributed, and the operation statistics request message is described for requesting
Second central node statisticallys analyze amount of access information of the content to be distributed in the 2nd CDN；
The content server further includes receiving unit,
The receiving unit counts response message, the operation statistics for receiving the operation that second central node is sent
Response message includes the operation statistical data.
28. content server according to claim 27, which is characterized in that
The operation statistics request message further includes statistical parameter, and the operation statistical message is for requesting second centromere
Point statisticallys analyze amount of access information of the content to be distributed in the 2nd CDN, the statistical parameter according to the statistical parameter
Include at least one of region granular information, code rate, timestamp information, amount of access measurement period.
29. a kind of content distribution system, which is characterized in that in as described in any one of the claims 15-25
Heart node, the content server as described in any one of the claims 26-28 and the central node management are extremely
A few fringe node, each fringe node are made of at least one edge cache server, the content server with it is described
By network connection between central node, pass through network connection between the central node and each edge cache server.
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| CN108804585B (en) * | 2018-05-25 | 2021-11-02 | 网宿科技股份有限公司 | Data processing method and device in CDN system |
| CN111064760B (en) * | 2018-10-17 | 2023-02-17 | 中国联合网络通信集团有限公司 | Method and device for accessing service in content distribution network |
| CN109347967B (en) * | 2018-11-02 | 2021-08-03 | 网宿科技股份有限公司 | Method and device for acquiring audio and video data |
| CN110086857B (en) * | 2019-04-15 | 2022-01-14 | 哈尔滨工程大学 | Information center network cache deployment method based on cache node state and position |
| JP7336911B2 (en) * | 2019-08-08 | 2023-09-01 | 三菱電機株式会社 | Processing identification device, processing identification method, and processing identification program |
| CN113315646B (en) * | 2020-02-27 | 2024-11-26 | 阿里巴巴集团控股有限公司 | Abnormal processing method and device for content distribution network and content distribution network |
| CN113297451A (en) * | 2020-04-10 | 2021-08-24 | 阿里巴巴集团控股有限公司 | Data processing method and device, electronic equipment and storage medium |
| CN111597259B (en) * | 2020-05-12 | 2023-04-28 | 北京爱奇艺科技有限公司 | Data storage system, method, device, electronic equipment and storage medium |
| CN115174696B (en) * | 2022-09-08 | 2023-01-20 | 北京达佳互联信息技术有限公司 | Node scheduling method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7007089B2 (en) * | 2001-06-06 | 2006-02-28 | Akarnai Technologies, Inc. | Content delivery network map generation using passive measurement data |
| US20110078230A1 (en) * | 2009-09-25 | 2011-03-31 | Emilio Sepulveda | Method and system for providing a cdn with granular quality of service |
| CN102387176B (en) * | 2010-08-31 | 2017-10-10 | 中兴通讯股份有限公司 | The method of content distribution and the framework of CDN interconnection are realized between interconnection CDN |
| CN103581245B (en) * | 2012-07-30 | 2018-06-19 | 腾讯科技（深圳）有限公司 | A kind of method and system of content distributing network content distribution |
| CN103747047A (en) * | 2013-12-24 | 2014-04-23 | 乐视网信息技术（北京）股份有限公司 | CDN file storage method, file distribution control center and system thereof |
| CN104270371A (en) * | 2014-10-13 | 2015-01-07 | 无锡云捷科技有限公司 | CDN cache server selecting method based on fuzzy logic |
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2015
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