CN105959405A - CDN video scheduling system and method, CDN scheduling server and client - Google Patents
CDN video scheduling system and method, CDN scheduling server and client Download PDFInfo
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- CN105959405A CN105959405A CN201610476218.3A CN201610476218A CN105959405A CN 105959405 A CN105959405 A CN 105959405A CN 201610476218 A CN201610476218 A CN 201610476218A CN 105959405 A CN105959405 A CN 105959405A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
Abstract
The invention discloses a CDN video scheduling system and method, a CDN scheduling server and a client. The method comprises the following steps: the CDN scheduling server receives a request which carries a request domain name and an own IP address and is sent from the client; when the CDN scheduling server judges the received request domain name is within a scheduling domain, the CDN scheduling server determines a geographical position area affiliated to the received IP address; the CDN scheduling server obtains multiple CDN servers in the determined geographical position area, and determines the CDN servers meeting a second preset condition among the multiple CDN servers; and the CDN scheduling server redirects the request to the CDN servers meeting the second preset condition. According to the CDN video scheduling system and method, the CDN scheduling server and the client provided by the embodiment of the invention, the accuracy of CDN video scheduling is improved.
Description
Technical field
The present invention relates to mobile communication technology, espespecially a kind of content distributing network (CDN) video dispatching system
System, method and CDN dispatch server and client.
Background technology
The method of existing CDN video dispatching is based primarily upon domain name and local domain name system (Local DNS)
Carry out video dispatching, as it is shown in figure 1, comprise the following steps:
Step 100:LocalDNS periodically caches the corresponding relation between different domain name and IP address.
Step 101: user sends the request carrying request domain name to LocalDNS.
Step 102: when the request domain name that LocalDNS receives is in the corresponding relation of caching,
The IP corresponding with request domain name is returned to user by LocalDNS；When the request domain name received is not at caching
Corresponding relation in time, the domain name request from user is sent to CDN dispatch server.
Step 103:CDN dispatch server selects nearby according to IP address and the domain name of LocalDNS
CDN server set, chooses a CDN server by methods such as minimum connection number or polls, will
The IP address of this CDN server returns to LocalDNS.
Step 104:LocalDNS returns DNS response to user, comprises CDN scheduling in this DNS response
The IP address of the CDN server that server returns.
Step 105: user initiates to this CDN server according to the IP address of the CDN server received
HTTP (http) is asked.
The video dispatching method of above-mentioned CDN there is problems in that on the one hand video dispatching is not according to visitor
The IP address of family end carries out video dispatching, and owing to the corresponding relation of LocalDNS caching has certain
Effect duration, when LocalDNS caching different domain names and IP address between corresponding relation incorrect time, meeting
Causing LocalDNS that the IP address of mistake is returned to user, therefore, the accuracy of scheduling is by Local DNS
Affect the biggest.On the other hand, video dispatching is scheduling based on domain name, owing to video flowing is the biggest,
It is not easy to estimate the actual data on flows taken and persistent period, there is the load in a certain CDN server
Excessive, the accuracy thus resulting in video dispatching is inadequate.
Therefore, the problem of the accuracy and accuracy that how to promote video dispatching becomes the difficulty needing solution badly
Topic.
Summary of the invention
This application provides a kind of CDN video scheduling system, method and CDN dispatch server and visitor
Family end, it is possible to promote the accuracy of CDN video dispatching.
In order to reach the application purpose, this application provides a kind of CDN video scheduling system, including:
Multiple clients and a CDN dispatch server；Wherein, CDN dispatch server includes: one
Equalization processor and multiple operational processor；
Client, for CDN dispatch server send carry request domain name and own IP address please
Ask；
Equalization processor, for when receiving request of the carrying domain name and himself IP sent from client
During the request of address, request assignment to meet the first pre-conditioned operational processor by this；
Operational processor, for when judging that the request domain name received is in dispatching zone, determines reception
The geographic location area belonging to IP address arrived；Obtain multiple in the geographic location area determined
CDN server also determines that to meet second pre-conditioned in the multiple CDN server obtained
CDN server；It is redirected to this request meet the second pre-conditioned CDN server.
Alternatively, described client is hypertext transmission to the request that described CDN dispatch server sends
Agreement http request.
Alternatively, described dispatching zone includes multiple domain names of prestoring and the IP corresponding with each domain name
Address.
Alternatively, described operational processor, it is additionally operable to belonging to the described IP address determining and receiving
Before geographic location area, the corresponding pass between different geographic location area and IP address range is set
System；
Described operational processor determines that the geographic location area belonging to IP address received includes:
Described operational processor determines the IP address range belonging to described IP address；
Described operational processor is searched corresponding with the IP address range determined in described corresponding relation
Geographic location area；
Described operational processor using the geographic location area that finds in described corresponding relation as described
Geographic location area belonging to IP address.
Alternatively, described operational processor, it is additionally operable in the geographic location area that described acquisition is determined
Multiple CDN server before, arrange that each geographic location area comprised one or more
CDN server.
Alternatively, described operational processor is determined in the multiple CDN server obtained and is met second
Pre-conditioned CDN server includes:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The described request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the described request domain name the obtained upper cycle in CDN server was
No less than the data on flows threshold value corresponding in described CDN server with described request domain name；
Stream in judging the described request domain name obtained a upper cycle in described CDN server
When amount data are less than the data on flows threshold value corresponding in described CDN server with described request domain name, institute
State CDN server and meet described second pre-conditioned.
Alternatively, when determine meet the second pre-conditioned CDN server be multiple time, described
This request is redirected to meet the second pre-conditioned CDN server and includes by operational processor:
A CDN is chosen in meeting in described second pre-conditioned described CDN server of determining
Server；
Described request is redirected to the CDN server chosen.
Alternatively, described operational processor meeting of determining described second pre-conditioned described in
CDN server is chosen a CDN server include:
Obtained the described request domain name prestored a upper cycle in the described CDN server chosen
In interior flow discreet value and described request domain name current period in the described CDN server chosen
Present flow rate；
Calculate obtain described flow discreet value and described current period in present flow rate and value；
In meeting described second pre-conditioned multiple CDN server, choose one meet and calculate
With value less than with described request domain name at the CDN of data on flows threshold value corresponding to described CDN server
The described CDN server that server redirects as request.
Alternatively, described operational processor, it is additionally operable to obtain the described request domain name prestored described
The number of request in the upper cycle in the CDN server chosen；
According in the described request domain name the obtained upper cycle in the described CDN server chosen
Data on flows, number of request and flow discreet value calculate described request domain name in the described CDN service chosen
Flow discreet value in current period on device；
Flow discreet value in the current period that will calculate is added to described request domain name at described CDN
In the data on flows in current period on server.
Alternatively, described operational processor calculates described request domain name according to below equation and chooses described
Flow discreet value in current period in CDN server:
Wherein, the quotient between data on flows and described number of request in a was a described upper cycle；B is
Flow discreet value in the described upper cycle.
Present invention also provides a kind of content distributing network CDN video dispatching method, including:
CDN dispatch server receives and carries request domain name and own IP address from what client sent
Request；
When CDN dispatch server judges that the request domain name received is in dispatching zone, CDN dispatches
Server determines the geographic location area belonging to IP address received；
CDN dispatch server obtains the multiple CDN server in the geographic location area determined also
The multiple CDN server obtained are determined and meets the second pre-conditioned CDN server；
This request is redirected to meet the second pre-conditioned CDN server by CDN dispatch server.
Alternatively, described client is hypertext transmission to the request that described CDN dispatch server sends
Agreement http request.
Alternatively, described dispatching zone includes multiple domain names of prestoring and the IP corresponding with each domain name
Address.
Alternatively, the geographical position belonging to the IP address received is determined at described CDN dispatch server
Before region, the method also includes:
It is right that described CDN dispatch server arranges between different geographic location area and IP address range
Should be related to；
Described CDN dispatch server determines that the geographic location area belonging to IP address received includes:
Described CDN dispatch server determines the IP address range belonging to described IP address；
The IP address range pair that described CDN dispatch server is searched in described corresponding relation and determined
The geographic location area answered；
Described CDN dispatch server using the geographic location area that finds in described corresponding relation as
Geographic location area belonging to described IP address.
Alternatively, multiple in described CDN dispatch server obtains the geographic location area determined
Before CDN server, the method also includes:
Described CDN dispatch server arranges one or more that each geographic location area comprised
CDN server.
Alternatively, described in the multiple CDN server obtained, determine that to meet second pre-conditioned
CDN server includes:
Described CDN dispatch server is for each CDN service in the multiple CDN server obtained
Device performs to obtain the flow in the described request domain name the prestored upper cycle in CDN server
Data；
Described CDN dispatch server judges upper in CDN server of described request domain name obtained
Data on flows in one cycle whether less than with described request domain name in described CDN server corresponding
Data on flows threshold value；
When described CDN dispatch server judges that the described request domain name obtained is in described CDN service
The data on flows in the upper cycle on device is less than corresponding in described CDN server with described request domain name
Data on flows threshold value time, described CDN server meets described second pre-conditioned.
Alternatively, when determine meet the second pre-conditioned CDN server be multiple time, described
This request is redirected to meet the second pre-conditioned CDN server and includes by CDN dispatch server:
Described CDN dispatch server meets described second pre-conditioned described CDN determine
Server is chosen a CDN server；
Described request is redirected to the CDN server chosen by described CDN dispatch server.
Alternatively, described CDN dispatch server meets described second pre-conditioned institute determine
State and CDN server is chosen a CDN server include:
Described CDN dispatch server obtains the described request domain name prestored at the described CDN chosen
The flow discreet value in the upper cycle and described request domain name on server take at the described CDN chosen
The present flow rate in current period on business device；
Described CDN dispatch server calculates in the described flow discreet value and described current period obtained
Present flow rate and value；
Described CDN dispatch server is in meeting described second pre-conditioned multiple CDN server
Choose one meet calculate and value be less than corresponding in described CDN server with described request domain name
The described CDN server that the CDN server of data on flows threshold value redirects as request.
Alternatively, also include after the method:
Described CDN dispatch server obtains the described request domain name prestored at the described CDN chosen
The number of request in the upper cycle on server；
Described CDN dispatch server takes at the described CDN chosen according to the described request domain name obtained
Data on flows, number of request and flow discreet value in the upper cycle on business device calculate described request domain name and exist
The flow discreet value in current period in the described CDN server chosen；
Flow discreet value in the current period that described CDN dispatch server will calculate is added to described
In data on flows in request domain name current period in described CDN server.
Alternatively, described CDN dispatch server calculates described request domain name described according to below equation
Flow discreet value in the current period in CDN server chosen:
Wherein, the quotient between data on flows and described number of request in a was a described upper cycle；B is
Flow discreet value in the described upper cycle.
Present invention also provides a kind of content distributing network CDN dispatch server, including: an equilibrium
Processor and multiple operational processor；Wherein,
Equalization processor, for when receiving request of the carrying domain name and himself IP sent from client
During the request of address, request assignment to meet the first pre-conditioned operational processor by this；
Each operational processor all includes the first receiver module, judge module, determines module, acquisition module
And redirection module；Wherein,
First receiver module, for receiving the request of equalization processor distribution；
Judge module, for when judging that the request domain name received is in dispatching zone, notice determines mould
Block；
Determine module, for receiving the notice from judge module, determine the IP address institute received
The geographic location area belonged to；
Acquisition module, for obtaining the multiple CDN server in the geographic location area determined also
The multiple CDN server obtained are determined and meets the second pre-conditioned CDN server；
Redirection module, for being redirected to meet the second pre-conditioned CDN server by this request.
Alternatively, this CDN dispatch server also includes memory module, is used for prestoring described scheduling
Multiple domain names included by territory and the IP address corresponding with each domain name.
Alternatively, described operational processor also includes arranging module, for arranging different geographical position districts
Corresponding relation between territory and IP address range；
Described determine module, specifically for:
Determine the IP address range belonging to described IP address；
The geographic location area corresponding with the IP address range determined is searched in described corresponding relation；
Using the geographic location area that finds in described corresponding relation as the ground belonging to described IP address
The reason band of position.
Alternatively, described module is set, be additionally operable to arrange each geographic location area comprised one or
More than one CDN server.
Alternatively, described acquisition module determines that to meet second pre-in the multiple CDN server obtained
If the CDN server of condition includes:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The described request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the described request domain name the obtained upper cycle in CDN server was
No less than the data on flows threshold value corresponding in described CDN server with described request domain name；Work as judgement
The data on flows gone out in the described request domain name the obtained upper cycle in described CDN server is less than
During corresponding in described CDN server with described request domain name data on flows threshold value, described CDN takes
Business device meets described second pre-conditioned.
Alternatively, described acquisition module, it is additionally operable to meet the second pre-conditioned CDN when determine
When server is multiple, meet in described second pre-conditioned described CDN server determine
Choose a CDN server；Correspondingly,
Described redirection module, specifically for the CDN server being redirected to choose by described request.
Alternatively, described acquisition module meets described second pre-conditioned described CDN determine
Server is chosen a CDN server include:
Obtained the described request domain name prestored a upper cycle in the described CDN server chosen
In interior flow discreet value and described request domain name current period in the described CDN server chosen
Present flow rate；
Calculate obtain described flow discreet value and described current period in present flow rate and value；
In meeting described second pre-conditioned multiple CDN server, choose one meet and calculate
With value less than with described request domain name at the CDN of data on flows threshold value corresponding to described CDN server
The described CDN server that server redirects as request.
Alternatively, described operational processor also includes computing module and accumulator module；
Described acquisition module, is additionally operable to obtain the described request domain name that prestores and chooses described
The number of request in the upper cycle in CDN server；Correspondingly,
Described computing module, is used for according to the described request domain name obtained in the described CDN service chosen
The data on flows in the upper cycle, number of request and flow discreet value on device calculates described request domain name in institute
State the flow discreet value in the current period in the CDN server chosen；
Described accumulator module, the flow discreet value in the current period that will calculate is added to described asking
Ask in the data on flows in domain name current period in described CDN server.
Present invention also provides a kind of client, including: sending module and the second receiver module；Wherein,
Sending module, for carrying the request of request domain name and self affiliated client ip address；
Second receiver module, for receiving meeting of content distributing network CDN dispatch server redirection
The data of the second pre-conditioned CDN server.
Alternatively, described request is HTTP http request.
The embodiment of the present invention includes: CDN dispatch server receives and carries request from what client sent
Domain name and the request of own IP address；When CDN dispatch server judges that the request domain name received exists
Time in dispatching zone, CDN dispatch server determines the geographic location area belonging to IP address received；
CDN dispatch server obtains the multiple CDN server in the geographic location area determined and is obtaining
The multiple CDN server obtained are determined and meets the second pre-conditioned CDN server；CDN adjusts
This request is redirected to meet the second pre-conditioned CDN server by degree server.The embodiment of the present invention
Improve the accuracy of CDN video dispatching.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, the schematic description and description of the present invention is used for explaining the present invention, is not intended that the present invention's
Improper restriction.In the accompanying drawings:
Fig. 1 is the flow chart of existing CDN video dispatching method；
Fig. 2 is the Organization Chart of the application CDN video scheduling system；
Fig. 3 is the flow chart of the application CDN video dispatching method；
Fig. 4 is the structural representation of the application CDN dispatch server；
Fig. 5 is the structural representation of the application client；
Fig. 6 is the internal mutual schematic diagram of CDN dispatch server of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing
Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen
Embodiment in please and the feature in embodiment can mutual combination in any.
Fig. 2 is the Organization Chart of the application CDN video scheduling system, as in figure 2 it is shown, include: multiple
Client and a CDN dispatch server.Wherein, CDN dispatch server includes at an equilibrium
Reason device and multiple operational processor.Wherein,
Client, for CDN dispatch server send carry request domain name and own IP address please
Ask.
Wherein, client is HTTP (http) to the request that CDN dispatch server sends
Request.
Equalization processor, for when receiving request of the carrying domain name and himself IP sent from client
During the request of address, request assignment to meet the first pre-conditioned operational processor by this.
It should be noted that CDN dispatch server can include more than one equalization processor, when connecing
When receiving the request from client, by the request that receives according to being sequentially allocated to all of mode of poll
Weighing apparatus processor.
Wherein, first pre-conditioned can be in the way of being poll.
Operational processor, for when judging that the request domain name received is in dispatching zone, determines reception
The geographic location area belonging to IP address arrived；Obtain multiple in the geographic location area determined
CDN server also determines that to meet second pre-conditioned in the multiple CDN server obtained
CDN server；It is redirected to this request meet the second pre-conditioned CDN server.
Wherein, dispatching zone includes multiple domain names of prestoring and the IP address corresponding with each domain name.
Alternatively, operational processor, it is additionally operable to determining the geographical position belonging to the IP address received
Before region, the corresponding relation between different geographic location area and IP address range is set；
Operational processor determines that the geographic location area belonging to IP address received includes:
Operational processor determines the IP address range belonging to IP address；
Operational processor searches the geographical position corresponding with the IP address range determined in corresponding relation
Region；
Operational processor using the geographic location area that finds in corresponding relation as belonging to IP address
Geographic location area.
Alternatively, operational processor, be additionally operable in obtaining the geographic location area determined is multiple
Before CDN server, one or more CDN clothes that each geographic location area is comprised are set
Business device.
Wherein, operational processor determines that meeting second presets bar in the multiple CDN server obtained
The CDN server of part includes:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the request domain name the obtained upper cycle in CDN server was the least
In the data on flows threshold value corresponding in CDN server with request domain name；
When the data on flows judged in the request domain name the obtained upper cycle in CDN server is little
When the data on flows threshold value corresponding in CDN server with request domain name, CDN server meets second
Pre-conditioned.
Wherein, what operational processor was determined meet the second pre-conditioned CDN server includes one
Or it is multiple.
Wherein, when determine meet the second pre-conditioned CDN server be multiple time, at business
This request is redirected to meet the second pre-conditioned CDN server and includes by reason device:
In meeting of determining, the second pre-conditioned CDN server is chosen a CDN server；
Redirect requests to the CDN server chosen.
Wherein, operational processor was chosen in meeting in the second pre-conditioned CDN server of determining
One CDN server includes:
Obtained the flow in the request domain name the prestored upper cycle in the CDN server chosen
Present flow rate in discreet value and request domain name current period in the CDN server chosen；
Calculate obtain flow discreet value and current period in present flow rate and value；
In meeting second pre-conditioned multiple CDN server, choose one meet calculate and value
Less than with request domain name in the CDN server of data on flows threshold value corresponding to CDN server as please
Seek the CDN server of redirection.
Alternatively, operational processor, it is additionally operable to obtain the request domain name prestored at the CDN chosen
The number of request in the upper cycle on server；
According to the flow number in the request domain name the obtained upper cycle in the CDN server chosen
According to, number of request and flow discreet value computation requests domain name current period in the CDN server chosen
Interior flow discreet value；
Flow discreet value in the current period that will calculate is added to ask domain name in CDN server
Current period in data on flows in.
Alternatively, operational processor can be according to formula (1) computation requests domain name at the CDN clothes chosen
The flow discreet value in current period on business device:
Wherein, the quotient between data on flows and number of request in a was a upper cycle；B was a upper cycle
Interior flow discreet value.
For the Organization Chart of the CDN video scheduling system shown in Fig. 2, this application provides corresponding therewith
The flow chart of CDN video dispatching method as shown in Figure 3.
Fig. 3 is the flow chart of the application CDN video dispatching method, as it is shown on figure 3, include:
Step 301: content distributing network (CDN) dispatch server receives from taking that client sends
Band request domain name and the request of own IP address.
Wherein, client is HTTP (http) to the request that CDN dispatch server sends
Request.
Step 302: when CDN dispatch server judges that the request domain name received is in dispatching zone,
CDN dispatch server determines the geographic location area belonging to IP address received.
Wherein, dispatching zone includes multiple domain names of prestoring and the IP address corresponding with each domain name.
Alternatively, the geographic location area belonging to the IP address received is determined at CDN dispatch server
Before, the method also includes:
CDN dispatch server arranges the corresponding pass between different geographic location area and IP address range
System；
CDN dispatch server determines that the geographic location area belonging to IP address received includes:
CDN dispatch server determines the IP address range belonging to IP address；
CDN dispatch server searches the geography corresponding with the IP address range determined in corresponding relation
The band of position；
CDN dispatch server using the geographic location area that finds in corresponding relation as IP address institute
The geographic location area belonged to.
Alternatively, when CDN dispatch server judges that the request domain name received is not in dispatching zone,
The method also includes: this request of CDN dispatch server refusal client.Such as CDN dispatch service
Device directly returns 403 refusals to client and provides service.Wherein, 403 represent that resource is unavailable, forbid
Access.
Step 303:CDN dispatch server obtains the multiple CDN in the geographic location area determined
Server also determines that in the multiple CDN server obtained meeting the second pre-conditioned CDN takes
Business device.
Alternatively, the multiple CDN in CDN dispatch server obtains the geographic location area determined
Before server, the method also includes:
CDN dispatch server arranges one or more CDN that each geographic location area is comprised
Server.
Wherein, determine and meet the second pre-conditioned CDN in the multiple CDN server obtained
Server includes:
CDN dispatch server is held for each CDN server in the multiple CDN server obtained
Row obtained the data on flows in the request domain name the prestored upper cycle in CDN server；
In CDN dispatch server judged the request domain name obtained a upper cycle in CDN server
Whether data on flows is less than the data on flows threshold value corresponding in CDN server with request domain name；
When CDN dispatch server judges upper a week in CDN server of the request domain name obtained
When data on flows in phase is less than the data on flows threshold value corresponding in CDN server with request domain name,
It is pre-conditioned that CDN server meets second.
Wherein it is determined that the second pre-conditioned CDN server that meets gone out includes one or more.
Alternatively, in the multiple CDN server obtained, determining that to meet second pre-conditioned
Before CDN server, the method also includes: CDN dispatch server arranges each domain name at different CDN
Data on flows threshold value corresponding on server.
Alternatively, judge that the request domain name obtained is in CDN server when CDN dispatch server
Data on flows in the upper cycle more than or equal to request domain name at flow number corresponding to CDN server
During according to threshold value, it is pre-conditioned that CDN server does not meets second.
This request is redirected to meet the second pre-conditioned CDN by step 304:CDN dispatch server
Server.
Wherein, when determine meet the second pre-conditioned CDN server be multiple time, step 204
Specifically include:
CDN dispatch server chooses one in meeting in the second pre-conditioned CDN server of determining
Individual CDN server；
CDN dispatch server redirects requests to the CDN server chosen.
Wherein, CDN dispatch server meets in the second pre-conditioned CDN server determine
Choose a CDN server to include:
CDN dispatch server obtains upper in the CDN server chosen of the request domain name that prestores
In flow discreet value in one cycle and request domain name current period in the CDN server chosen
Present flow rate；
CDN dispatch server calculates the sum of the present flow rate in the flow discreet value and current period obtained
Value；
CDN dispatch server chooses one completely in meeting second pre-conditioned multiple CDN server
Foot calculates and value is less than and asks the domain name CDN in data on flows threshold value corresponding to CDN server
The CDN server that server redirects as request.
It should be noted that about how redirecting requests to the server determined, belong to this area
Conventional techniques means known to technical staff, here is omitted, is not intended to limit the application.Example
As, request is redirected (302redirect) to the CDN server chosen by CDN dispatch server.
Wherein, 302 is a kind of answer code of http, it is desirable to client is to a new URL
(URL, Uniform Resource Locator) make requests on, and this new URL is and chooses
The URL of CDN server.
Alternatively, also include after the method:
CDN dispatch server obtains upper in the CDN server chosen of the request domain name that prestores
Number of request in one cycle；
CDN dispatch server is according in the CDN server chosen upper one week of request domain name obtained
Data on flows, number of request and flow discreet value computation requests domain name in phase are in the CDN server chosen
On current period in flow discreet value；
Flow discreet value in the current period that CDN dispatch server will calculate is added to ask domain name
In the data on flows in current period in CDN server.
Wherein, CDN dispatch server takes at the CDN chosen according to formula (1) computation requests domain name
The flow discreet value in current period on business device.
Alternatively, also include after the method: CDN dispatch server is held for each CDN server
Data on flows, number of request and flow that row records in each request domain name current period thereon are estimated
Value.
Alternatively, also include after the method: CDN dispatch server in current period not for not being inconsistent
Close the second pre-conditioned CDN server distribution flow from above-mentioned request domain name.
In embodiment of the present invention, the own IP address that CDN dispatch server sends according to client is true
Its affiliated geographic location area fixed, the multiple CDN server in the geographic location area determined
In choose meet the second pre-conditioned CDN server as redirect CDN server, promote
The accuracy of CDN video dispatching.
Further, according to the data on flows in the upper cycle of each CDN server and current period
Interior data on flows and flow discreet value determine the CDN server of redirection, improve CDN and regard
The degree of accuracy of frequency modulation degree.
Fig. 4 is the structural representation of the application CDN dispatch server, as shown in Figure 4, including: one
Individual equalization processor 40 and multiple operational processor 41.Wherein,
Equalization processor 40, is used for working as receiving and asks domain name with it certainly from carrying of client transmission
During the request of body IP address, request assignment to meet the first pre-conditioned operational processor by this.
Each operational processor 41 all includes the first receiver module 410, judge module 411, determines module
412, acquisition module 413 and redirection module 414.Wherein,
First receiver module 410, carries request domain name and self IP for receiving from what client sent
The request of address.
Judge module 411, for when judging that the request domain name received is in dispatching zone, notice is really
Cover half block 412.
Determine module 412, for receiving the notice from judge module 411, determine the IP received
Geographic location area belonging to address.
Acquisition module 413, for obtaining the multiple CDN service in the geographic location area determined
Device is also determined and is met the second pre-conditioned CDN server in the multiple CDN server obtained.
Redirection module 414, for being redirected to meet the second pre-conditioned CDN service by this request
Device.
Alternatively, this operational processor 41 also includes memory module 415, is used for prestoring dispatching zone
Included multiple domain names and the IP address corresponding with each domain name.
Alternatively, this operational processor 41 also includes arranging module 416, for arranging different geography
Corresponding relation between the band of position and IP address range；Correspondingly,
Determine module 412, specifically for:
Determine the IP address range belonging to IP address；
The geographic location area that the IP address range searched in corresponding relation and determine is corresponding；
Using the geographic location area that finds in corresponding relation as the geographical position district belonging to IP address
Territory.
Alternatively, module 416 is set, be additionally operable to arrange each geographic location area comprised one or
More than one CDN server.
Wherein, acquisition module 413 determines that in the multiple CDN server obtained meeting second presets
The CDN server of condition includes:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the request domain name the obtained upper cycle in CDN server was the least
In the data on flows threshold value corresponding in CDN server with request domain name；When the request judging acquisition
Data on flows in the domain name upper cycle in CDN server takes at CDN less than with request domain name
During business data on flows threshold value corresponding to device, it is pre-conditioned that CDN server meets second.
Alternatively, acquisition module 413 is additionally operable to when judging that the request domain name obtained is in CDN server
On a upper cycle in data on flows more than or equal to request domain name at stream corresponding to CDN server
During amount data threshold, it is pre-conditioned that CDN server does not meets second.
Wherein, what acquisition module 413 was determined meet the second pre-conditioned CDN server includes one
Individual or multiple.
Alternatively, acquisition module 413, it is additionally operable to meet the second pre-conditioned CDN when determine
When server is multiple, choose one in meeting in the second pre-conditioned CDN server of determining
CDN server；Correspondingly,
Redirection module 414, specifically for redirecting requests to the CDN server chosen.
Wherein, acquisition module 413 meets choosing in the second pre-conditioned CDN server determine
Take a CDN server to include:
Obtained the flow in the request domain name the prestored upper cycle in the CDN server chosen
Present flow rate in discreet value and request domain name current period in the CDN server chosen；
Calculate obtain flow discreet value and current period in present flow rate and value；
In meeting second pre-conditioned multiple CDN server, choose one meet calculate and value
Less than with request domain name in the CDN server of data on flows threshold value corresponding to CDN server as please
Seek the CDN server of redirection.
Alternatively, this operational processor 41 also includes computing module 417 and accumulator module 418；Wherein,
Acquisition module 413, is additionally operable to obtain the request domain name prestored in the CDN server chosen
On a upper cycle in number of request；Correspondingly,
Computing module 417, for according to the request domain name obtained in the CDN server chosen
Data on flows, number of request and flow discreet value computation requests domain name in one cycle is at the CDN clothes chosen
The flow discreet value in current period on business device；
Accumulator module 418, the flow discreet value in the current period that will calculate is added to ask territory
In data on flows in name current period in CDN server.
Wherein, computing module according to formula (1) computation requests domain name in the CDN server chosen
Flow discreet value in current period.
Alternatively, memory module 415, it is additionally operable to perform to record each asking for each CDN server
Ask the data on flows in domain name current period thereon, number of request and flow discreet value.
Alternatively, module 416 is set, being additionally operable to, each domain name is set right in different CDN server
The data on flows threshold value answered.
Fig. 5 is the structural representation of the application client, as it is shown in figure 5, include: sending module 50
With the second receiver module 51.Wherein,
Sending module 50, for carrying the request of request domain name and self affiliated client ip address.
Wherein, request is HTTP http request.
Second receiver module 51, for receiving the symbol that content distributing network CDN dispatch server redirects
Close the data of the second pre-conditioned CDN server.
Fig. 6 is the internal mutual schematic diagram of CDN dispatch server of the present invention, as shown in Figure 6, in reality
In application, CDN dispatch server may include that load balancing layer, Business treatment and data storage
Layer.Wherein,
Load balancing layer, including one or more equalization processor.Wherein, equalization processor, for working as
When receiving the request of request of carrying domain name and himself the IP address sent from client, please by this
Ask and distribute to Business treatment meets the first pre-conditioned operational processor.
Business treatment, including multiple operational processors.Wherein, operational processor, for when judging
When the request domain name received is in dispatching zone, determine the geographical position district belonging to IP address received
Territory；Obtain multiple CDN server in the geographic location area determined multiple obtain
CDN server is determined and meets the second pre-conditioned CDN server；This request is redirected to
Meet the second pre-conditioned CDN server.
Data storage layer, the data needed for storage service processor.
Wherein, the data needed for operational processor include static data and dynamic data.Wherein, static number
According to being stored in MySql data base, these part data update infrequently, when operational processor starts
Being loaded directly into internal memory, if MySql data base has change, operational processor can reload data；
Dynamic data is by background program timing acquisition, such as the data on flows etc. of CDN server, these part data
Update frequently, be therefore suitable for being placed in memory database.Wherein, memory database also need to storage and more
In the new cycle, operational processor estimates flow value about domain name (one or more).
It should be noted that in this article, term " include ", " comprising " or its any other become
Body is intended to comprising of nonexcludability, so that include the process of a series of key element, method, article
Or device not only includes those key elements, but also includes other key elements being not expressly set out, or
Also include the key element intrinsic for this process, method, article or device.There is no more restriction
In the case of, statement " including ... " key element limited, it is not excluded that including the mistake of this key element
Journey, method, article or device there is also other identical element.
Above-mentioned the embodiment of the present application sequence number, just to describing, does not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive above-mentioned
Embodiment method can add the mode of required general hardware platform by software and realize, naturally it is also possible to logical
Cross hardware, but a lot of in the case of the former is more preferably embodiment.Based on such understanding, the application's
The part that prior art is contributed by technical scheme the most in other words can be with the form of software product
Embody, this computer software product be stored in a storage medium (as ROM/RAM, magnetic disc,
CD) in, including some instructions with so that a station terminal equipment (can be mobile phone, computer, take
Business device, air-conditioner, or the network equipment etc.) perform the method described in each embodiment of the application.
These are only the preferred embodiment of the application, not thereby limit the scope of the claims of the application, every
Utilize equivalent structure or equivalence flow process conversion that present specification and accompanying drawing content made, or directly or
Connect and be used in other relevant technical fields, be the most in like manner included in the scope of patent protection of the application.
Claims (30)
1. a content distributing network CDN video scheduling system, it is characterised in that including: Duo Geke
Family end and a CDN dispatch server；Wherein, CDN dispatch server includes: at an equilibrium
Reason device and multiple operational processor；
Client, for CDN dispatch server send carry request domain name and own IP address please
Ask；
Equalization processor, for when receiving request of the carrying domain name and himself IP sent from client
During the request of address, request assignment to meet the first pre-conditioned operational processor by this；
Operational processor, for when judging that the request domain name received is in dispatching zone, determines reception
The geographic location area belonging to IP address arrived；Obtain multiple in the geographic location area determined
CDN server also determines that to meet second pre-conditioned in the multiple CDN server obtained
CDN server；It is redirected to this request meet the second pre-conditioned CDN server.
CDN video scheduling system the most according to claim 1, it is characterised in that described client
Holding the request sent to described CDN dispatch server is HTTP http request.
CDN video scheduling system the most according to claim 1, it is characterised in that described scheduling
Territory includes multiple domain names of prestoring and the IP address corresponding with each domain name.
CDN video scheduling system the most according to claim 1, it is characterised in that described business
Processor, was additionally operable to before the geographic location area belonging to the described IP address determining and receiving, if
Put the corresponding relation between different geographic location area and IP address range；
Described operational processor determines that the geographic location area belonging to IP address received includes:
Described operational processor determines the IP address range belonging to described IP address；
Described operational processor is searched corresponding with the IP address range determined in described corresponding relation
Geographic location area；
Described operational processor using the geographic location area that finds in described corresponding relation as described
Geographic location area belonging to IP address.
CDN video scheduling system the most according to claim 1, it is characterised in that described business
Processor, the multiple CDN server being additionally operable in the geographic location area that described acquisition is determined it
Before, one or more CDN server that each geographic location area is comprised are set.
CDN video scheduling system the most according to claim 1, it is characterised in that described business
Processor is determined in the multiple CDN server obtained and is met the second pre-conditioned CDN service
Device includes:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The described request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the described request domain name the obtained upper cycle in CDN server was
No less than the data on flows threshold value corresponding in described CDN server with described request domain name；
Stream in judging the described request domain name obtained a upper cycle in described CDN server
When amount data are less than the data on flows threshold value corresponding in described CDN server with described request domain name, institute
State CDN server and meet described second pre-conditioned.
CDN video scheduling system the most according to claim 6, it is characterised in that when determining
Meet the second pre-conditioned CDN server when being multiple, described operational processor is by this request weight
It is directed to meet the second pre-conditioned CDN server include:
A CDN is chosen in meeting in described second pre-conditioned described CDN server of determining
Server；
Described request is redirected to the CDN server chosen.
CDN video scheduling system the most according to claim 7, it is characterised in that described business
Processor chooses one in meeting in described second pre-conditioned described CDN server of determining
CDN server includes:
Obtained the described request domain name prestored a upper cycle in the described CDN server chosen
In interior flow discreet value and described request domain name current period in the described CDN server chosen
Present flow rate；
Calculate obtain described flow discreet value and described current period in present flow rate and value；
In meeting described second pre-conditioned multiple CDN server, choose one meet and calculate
With value less than with described request domain name at the CDN of data on flows threshold value corresponding to described CDN server
The described CDN server that server redirects as request.
CDN video scheduling system the most according to claim 8, it is characterised in that described business
Processor, is additionally operable to obtain the described request domain name prestored in the described CDN server chosen
A upper cycle in number of request；
According in the described request domain name the obtained upper cycle in the described CDN server chosen
Data on flows, number of request and flow discreet value calculate described request domain name in the described CDN service chosen
Flow discreet value in current period on device；
Flow discreet value in the current period that will calculate is added to described request domain name at described CDN
In the data on flows in current period on server.
CDN video scheduling system the most according to claim 8, it is characterised in that described industry
Business processor calculates described request domain name working as in the described CDN server chosen according to below equation
Flow discreet value in the front cycle:
[|a-b|/(a+b)]×a+[1-|a-b|/(a+b)]×b
Wherein, the quotient between data on flows and described number of request in a was a described upper cycle；B is
Flow discreet value in the described upper cycle.
11. 1 kinds of content distributing network CDN video dispatching methods, it is characterised in that including:
CDN dispatch server receives and carries request domain name and own IP address from what client sent
Request；
When CDN dispatch server judges that the request domain name received is in dispatching zone, CDN dispatches
Server determines the geographic location area belonging to IP address received；
CDN dispatch server obtains the multiple CDN server in the geographic location area determined also
The multiple CDN server obtained are determined and meets the second pre-conditioned CDN server；
This request is redirected to meet the second pre-conditioned CDN server by CDN dispatch server.
12. CDN video dispatching methods according to claim 11, it is characterised in that described visitor
Family end is HTTP http request to the request that described CDN dispatch server sends.
13. CDN video dispatching methods according to claim 11, it is characterised in that described tune
Spend multiple domain names and the IP address corresponding with each domain name that territory includes prestoring.
14. CDN video dispatching methods according to claim 11, it is characterised in that described
Before CDN dispatch server determines the geographic location area belonging to IP address received, the method is also
Including:
It is right that described CDN dispatch server arranges between different geographic location area and IP address range
Should be related to；
Described CDN dispatch server determines that the geographic location area belonging to IP address received includes:
Described CDN dispatch server determines the IP address range belonging to described IP address；
The IP address range pair that described CDN dispatch server is searched in described corresponding relation and determined
The geographic location area answered；
Described CDN dispatch server using the geographic location area that finds in described corresponding relation as
Geographic location area belonging to described IP address.
15. CDN video dispatching methods according to claim 11, it is characterised in that described
Before CDN dispatch server obtains the multiple CDN server in the geographic location area determined, should
Method also includes:
Described CDN dispatch server arranges one or more that each geographic location area comprised
CDN server.
16. CDN video dispatching methods according to claim 11, it is characterised in that described
The multiple CDN server obtained determine that meeting the second pre-conditioned CDN server includes:
Described CDN dispatch server is for each CDN service in the multiple CDN server obtained
Device performs to obtain the flow in the described request domain name the prestored upper cycle in CDN server
Data；
Described CDN dispatch server judges upper in CDN server of described request domain name obtained
Data on flows in one cycle whether less than with described request domain name in described CDN server corresponding
Data on flows threshold value；
When described CDN dispatch server judges that the described request domain name obtained is in described CDN service
The data on flows in the upper cycle on device is less than corresponding in described CDN server with described request domain name
Data on flows threshold value time, described CDN server meets described second pre-conditioned.
17. CDN video dispatching methods according to claim 16, it is characterised in that when determining
Go out meets the second pre-conditioned CDN server when being multiple, and described CDN dispatch server will
This request is redirected to meet the second pre-conditioned CDN server and includes:
Described CDN dispatch server meets described second pre-conditioned described CDN determine
Server is chosen a CDN server；
Described request is redirected to the CDN server chosen by described CDN dispatch server.
18. CDN video dispatching methods according to claim 17, it is characterised in that described
CDN dispatch server selects in meeting in described second pre-conditioned described CDN server of determining
Take a CDN server to include:
Described CDN dispatch server obtains the described request domain name prestored at the described CDN chosen
The flow discreet value in the upper cycle and described request domain name on server take at the described CDN chosen
The present flow rate in current period on business device；
Described CDN dispatch server calculates in the described flow discreet value and described current period obtained
Present flow rate and value；
Described CDN dispatch server is in meeting described second pre-conditioned multiple CDN server
Choose one meet calculate and value be less than corresponding in described CDN server with described request domain name
The described CDN server that the CDN server of data on flows threshold value redirects as request.
19. CDN video dispatching methods according to claim 18, it is characterised in that the method
The most also include:
Described CDN dispatch server obtains the described request domain name prestored at the described CDN chosen
The number of request in the upper cycle on server；
Described CDN dispatch server takes at the described CDN chosen according to the described request domain name obtained
Data on flows, number of request and flow discreet value in the upper cycle on business device calculate described request domain name and exist
The flow discreet value in current period in the described CDN server chosen；
Flow discreet value in the current period that described CDN dispatch server will calculate is added to described
In data on flows in request domain name current period in described CDN server.
20. CDN video dispatching methods according to claim 18, it is characterised in that described
CDN dispatch server calculates described request domain name in the described CDN server chosen according to below equation
On current period in flow discreet value:
[|a-b|/(a+b)]×a+[1-|a-b|/(a+b)]×b
Wherein, the quotient between data on flows and described number of request in a was a described upper cycle；B is
Flow discreet value in the described upper cycle.
21. 1 kinds of content distributing network CDN dispatch servers, it is characterised in that including: one all
Weighing apparatus processor and multiple operational processor；Wherein,
Equalization processor, for when receiving request of the carrying domain name and himself IP sent from client
During the request of address, request assignment to meet the first pre-conditioned operational processor by this；
Each operational processor all includes the first receiver module, judge module, determines module, acquisition module
And redirection module；Wherein,
First receiver module, for receiving the request of equalization processor distribution；
Judge module, for when judging that the request domain name received is in dispatching zone, notice determines mould
Block；
Determine module, for receiving the notice from judge module, determine the IP address institute received
The geographic location area belonged to；
Acquisition module, for obtaining the multiple CDN server in the geographic location area determined also
The multiple CDN server obtained are determined and meets the second pre-conditioned CDN server；
Redirection module, for being redirected to meet the second pre-conditioned CDN server by this request.
22. CDN dispatch servers according to claim 21, it is characterised in that this CDN
Dispatch server also includes memory module, for prestore multiple domain names included by described dispatching zone with
And the IP address corresponding with each domain name.
23. CDN dispatch servers according to claim 22, it is characterised in that described business
Processor also includes arranging module, for arranging between different geographic location area and IP address range
Corresponding relation；
Described determine module, specifically for:
Determine the IP address range belonging to described IP address；
The geographic location area corresponding with the IP address range determined is searched in described corresponding relation；
Using the geographic location area that finds in described corresponding relation as the ground belonging to described IP address
The reason band of position.
24. CDN dispatch servers according to claim 23, it is characterised in that described setting
Module, is additionally operable to arrange one or more CDN server that each geographic location area is comprised.
25. CDN dispatch servers according to claim 21, it is characterised in that described acquisition
Module is determined in the multiple CDN server obtained and is met the second pre-conditioned CDN server
Including:
Perform acquisition for each CDN server in the multiple CDN server obtained to prestore
The described request domain name upper cycle in CDN server in data on flows；
Judged that the data on flows in the described request domain name the obtained upper cycle in CDN server was
No less than the data on flows threshold value corresponding in described CDN server with described request domain name；Work as judgement
The data on flows gone out in the described request domain name the obtained upper cycle in described CDN server is less than
During corresponding in described CDN server with described request domain name data on flows threshold value, described CDN takes
Business device meets described second pre-conditioned.
26. CDN dispatch servers according to claim 25, it is characterised in that described acquisition
Module, be additionally operable to when determine meet the second pre-conditioned CDN server be multiple time, really
A CDN server is chosen in meeting in described second pre-conditioned described CDN server of making；
Correspondingly,
Described redirection module, specifically for the CDN server being redirected to choose by described request.
27. CDN dispatch servers according to claim 26, it is characterised in that described acquisition
Module chooses a CDN in meeting in described second pre-conditioned described CDN server of determining
Server includes:
Obtained the described request domain name prestored a upper cycle in the described CDN server chosen
In interior flow discreet value and described request domain name current period in the described CDN server chosen
Present flow rate；
Calculate obtain described flow discreet value and described current period in present flow rate and value；
In meeting described second pre-conditioned multiple CDN server, choose one meet and calculate
With value less than with described request domain name at the CDN of data on flows threshold value corresponding to described CDN server
The described CDN server that server redirects as request.
28. CDN dispatch servers according to claim 27, it is characterised in that described business
Processor also includes computing module and accumulator module；
Described acquisition module, is additionally operable to obtain the described request domain name that prestores and chooses described
The number of request in the upper cycle in CDN server；Correspondingly,
Described computing module, is used for according to the described request domain name obtained in the described CDN service chosen
The data on flows in the upper cycle, number of request and flow discreet value on device calculates described request domain name in institute
State the flow discreet value in the current period in the CDN server chosen；
Described accumulator module, the flow discreet value in the current period that will calculate is added to described asking
Ask in the data on flows in domain name current period in described CDN server.
29. 1 kinds of clients, it is characterised in that including: sending module and the second receiver module；Wherein,
Sending module, for carrying the request of request domain name and self affiliated client ip address；
Second receiver module, for receiving meeting of content distributing network CDN dispatch server redirection
The data of the second pre-conditioned CDN server.
30. clients according to claim 29, it is characterised in that described request is hypertext
Transportation protocol http request.
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