CN106571982A - Data back-to-source method, device and content delivery network system - Google Patents
Data back-to-source method, device and content delivery network system Download PDFInfo
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- CN106571982A CN106571982A CN201611035513.1A CN201611035513A CN106571982A CN 106571982 A CN106571982 A CN 106571982A CN 201611035513 A CN201611035513 A CN 201611035513A CN 106571982 A CN106571982 A CN 106571982A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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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
- H04L67/56—Provisioning of proxy services
Abstract
The invention discloses a data back-to-source method. The method comprises steps: when a local server needs to acquire back-to-source data from multiple storage servers, one of the multiple storage servers is selected as a first server through a first back-to-source algorithm, and a back-to-source instruction is sent to a proxy server; when the proxy server receives the back-to-source instruction, one of the multiple storage servers is selected as a second server through a second back-to-source algorithm; the first operation and the second operation are executed; the first operation and the second operation are compared; and according to a comparison result, one of the first back-to-source algorithm and the second back-to-source algorithm is selected to acquire back-to-source data. The invention also provides a data back-to-source device and a system. Through adding the proxy servers to test advantages and disadvantages of different back-to-source algorithms in a real network environment, a proper back-to-source algorithm is selected according to the current network environment, a proper storage server is selected for back to source, and the data back-to-source efficiency is improved.
Description
Technical field
The present invention relates to field of computer technology, in particular it relates to the method for data Hui Yuan, device and content distributing network
System.
Background technology
CDN (Content Delivery Network, content distributing network) be it is a kind of existing Internet basic it
On by placing one layer of intelligent virtual network that node server is constituted everywhere in network.When home server (provides CDN to visit
Ask the server of server) when the instruction of user input is responded, if in server indicated by the instruction without user input
File, it usually needs go in other storage server to carry out back source acquisition.In the prior art, home server can basis
Time source address of the fixation that server internal is configured, selects to carry out Hui Yuan in storage server.
However, when home server carries out go back to source by fixed time source address, not accounting for network-like in real time
The impact of state and server load to Hui Yuan, is as a result possible to cause the speed of Hui Yuan slower, so as to have impact on whole CDN system
Performance.And, being affected by network condition, it is each advantageous that difference returns source algorithm.
The content of the invention
In view of this, the present invention provides a kind of method of data Hui Yuan, device and content distribution network system, by increasing
Proxy server tests back source algorithm in real network environment.
According to an aspect of the present invention, there is provided a kind of method of data Hui Yuan, including：When home server is needed to multiple
When storage server obtains back source data, the first clothes are used as by the multiple storage servers of first time source algorithms selection
Business device, while sending back sourse instruction to proxy server；When the proxy server receive it is described return sourse instruction when, by the
One in the multiple storage servers of two times source algorithms selections is used as second server；The first operation and the second operation are performed, its
In, first operation is to obtain back source data from the first server, and second operation is from the second server
Obtain back source data；Relatively the first operation and the second operation；First time source algorithm and second time source is selected to calculate according to comparative result
One of method updates first time source algorithm.
Preferably, methods described also includes：Data requesting instructions are obtained, the data requesting instructions include request data
Mark；Judge whether home server stores the corresponding request data of the mark；If home server is not stored
It is described to identify corresponding request data, obtain back source data to multiple storage servers.
Preferably, the request data includes file, webpage or database.
Preferably, second time source algorithm is one or more, is deposited by the way that multiple second time different source algorithms selections are multiple
One in storage server is used as second server.
According to a further aspect in the invention, there is provided a kind of data return source device, including：First time source unit, for when this
Ground server need to multiple storage servers obtain back source data when, by the multiple storage servers of first time source algorithms selection
In one as first server, while sending back sourse instruction to proxy server；Second time source unit, for when the generation
Reason server receives described when returning sourse instruction, and by the multiple storage servers of second time source algorithms selection the is used as
Two servers；Wherein, first time source unit is additionally operable to perform first and operates, wherein, first operation is from described the
One server obtains back source data；Second time source unit be additionally operable to perform second operate, wherein, it is described second operation be from
The second server obtains back source data；Comparing unit, for comparing the first operation and the second operation；Updating block, is used for
One of first time source algorithm and second time source algorithm is selected to update first time source algorithm according to comparative result.
Preferably, described device also includes：Instruction acquiring unit, for obtaining data requesting instructions, the request of data
Instruction includes the mark of request data；Judging unit, for judging whether to store the corresponding request data of the mark, such as
Fruit home server does not store the corresponding request data of the mark, and to multiple storage servers source data is obtained back.
Preferably, the request data includes file, webpage or database.
Preferably, second time source algorithm is one or more, is deposited by the way that multiple second time different source algorithms selections are multiple
One in storage server is used as second server.
According to the third aspect of the invention we, there is provided a kind of data return origin system, including data time source device and at least two
The storage server that source services is provided back to described time source device, data return source device and at least two to described time source device is carried
Storage server for returning source service,
Wherein, the data are returned source device and are included：First time source unit, for needing to multiple storages when home server
When server obtains back source data, first service is used as by the multiple storage servers of first time source algorithms selection
Device, while sending back sourse instruction to proxy server；Second time source unit, for receiving described returning when the proxy server
During sourse instruction, second server is used as by the multiple storage servers of second time source algorithms selection；Wherein, described
A time source unit is additionally operable to perform the first operation, wherein, first operation is to obtain back source data from the first server；
Second time source unit is additionally operable to perform the second operation, wherein, second operation is to obtain back from the second server
Source data；Comparing unit, for comparing the first operation and the second operation；Updating block, for selecting first according to comparative result
Return one of source algorithm and second time source algorithm and update first time source algorithm..
Preferably, the data are returned source device and are also included：Instruction acquiring unit, it is described for obtaining data requesting instructions
Data requesting instructions include the mark of request data；Judging unit, for judge whether to store the mark is corresponding please
Data are sought, if home server does not store the corresponding request data of the mark, to multiple storage servers Hui Yuan is obtained
Data..
The method of data Hui Yuan, device and system that the present invention is provided, by increasing proxy server in real net
The different qualities for returning source algorithm are tested in network environment, appropriate time source algorithm is selected according to current network environment, select to close
Suitable storage server carries out Hui Yuan, improves data and returns source efficiency.
Description of the drawings
By referring to description of the following drawings to the embodiment of the present invention, above-mentioned and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the schematic diagram of a scenario of CDN service；
Fig. 2 shows the flow chart of the method for data Hui Yuan according to embodiments of the present invention；
Fig. 3 shows that data according to embodiments of the present invention return the structural representation of source device.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
It is detailed to describe some specific detail sections in detailed description of the text to the present invention.Do not have for a person skilled in the art
The description of these detail sections can also completely understand the present invention.In order to avoid obscuring the essence of the present invention, known method, mistake
Journey, flow process are without narration in detail.In addition accompanying drawing is not necessarily drawn to scale.
Flow chart, block diagram in accompanying drawing illustrates system, method, the possible system frame of device of the embodiment of the present invention
Frame, function and operation, the square frame on flow chart and block diagram can represent a module, program segment or only one section of code, institute
It is all the executable instruction for realizing regulation logic function to state module, program segment and code.It should also be noted that described realize rule
Determining the executable instruction of logic function can reconfigure, so as to generate new module and program segment.Therefore the square frame of accompanying drawing with
And square frame order is used only to preferably illustrate the process and step of embodiment, and should not be in this, as the limit to invention itself
System.
In the CDN system of the embodiment of the present invention, storage server is to store the All Files in system, home server
Then it is responsible for providing a user with CDN access services.Here server and home server can be stand-alone server or multiple clothes
The cluster server of business device composition.
Fig. 1 is the schematic diagram of a scenario of CDN service.As shown in figure 1, user passes through internet or LAN to home server
Submit to request of data, home server to receive after request of data, retrieve on home server, if retrieval is less than indicated
Data, then submit request of data to storage server, and indicated data are obtained from storage server.Only arrange in FIG
Go out the home server and storage server of CDN system, but in fact, in the network topological diagram of CDN system, in local service
Between device and storage server, include the physical facilities such as router, switch, all kinds of servers, and transmission medium.These
The network of physical facility composition can be LAN or INTERNET nets.
Based on the CDN system shown in Fig. 1, Fig. 2 shows the flow chart of the method for data Hui Yuan of the embodiment of the present invention, bag
Include following steps.
In step s 201, when home server needs to obtain back source data to multiple storage servers, by first
Return the multiple storage servers of source algorithms selection in one as first server, while referring to the proxy server source of sending back
Order.
In the present embodiment, user sends data requesting instructions by internet or LAN, when inspection on home server
Rope then needs to obtain back source data to storage server, then storage service less than the data indicated by the data requesting instructions
Device has multiple, then need to be used as first server by the multiple storage servers of first time source algorithms selection and provide back
Time source server of source data.
But returning source algorithm has various, in order in real network environment, the quality of other time source algorithm can be tested,
Proxy server is increased, wherein, the proxy server is connected with home server and multiple storage servers, local
Server sends back sourse instruction, i.e. request of data and refers to while obtaining back source data to multiple storage servers to proxy server
Order.
In step S202, when the proxy server receives described time sourse instruction, by second time source algorithm choosing
One in multiple storage servers is selected as second server.
In the present embodiment, when the proxy server receives described time sourse instruction, by second time source algorithm choosing
Select in multiple storage servers time source server that source data is provided back as second server.
In step S203, the first operation and the second operation are performed, wherein, first operation is from the first service
Device obtains back source data, and second operation is to obtain back source data from the second server.
In the present embodiment, first operation be：Will return source data from the locally downloading server of first server for
Family accesses, and the second operation is：Source data will be returned from the locally downloading server of second server for user's access.
In step S204, compare the first operation and the second operation.
In the present embodiment, time source data and Operation Log of the first operation and the second operation are stored, its behaviour
Making daily record can include back source data size, speed of download, download time etc., and by comparing two operations comparative result is obtained,
If the speed of download of the first operation is faster than the second operation, it is known that first time source algorithm is better than second time source algorithm；If first
The speed of download of operation is slower than the second operation, it is known that second time source algorithm is better than first time source algorithm.
In step S205, one of first time source algorithm and second time source algorithm is selected to update first time according to comparative result
Source algorithm.
In the present embodiment, one of first time source algorithm or second time source algorithm are selected as under according to comparative result
Time source algorithm of secondary first operation.
In a preferred embodiment, second time source algorithm is one or more, by multiple second time different sources
One in the multiple storage servers of algorithms selection is used as second server.
In the present embodiment, second time source algorithm can have multiple, and such as A returns source algorithm, B and returns source algorithm, C time source algorithm
Deng the one i.e. A storage servers returned in the multiple servers of source algorithms selection by A, by the B time multiple service of source algorithms selection
One in device is B storage servers, the one i.e. C storage servers returned in the multiple servers of source algorithms selection by C, respectively
Source data is downloaded back to proxy server, now can compare from A storage servers, B storage servers, C storage servers
A operations, B operations in first operation and the second operation, the speed of download of C operations, obtain optimum returns source algorithm.
In a preferred embodiment, can also comprise the following steps before step S201.
Data requesting instructions are obtained, the data requesting instructions include the mark of request data；Judge home server
Whether the mark corresponding request data is stored；If home server does not store the corresponding number of request of the mark
According to obtaining back source data to multiple storage servers.
In the present embodiment, data requesting instructions refer to the data requesting instructions of user input, and the instruction is used to indicate to use
Family includes the mark of the data of request to CDN system request data in data requesting instructions.The data can be video counts
According to, or the extended formatting such as image data data；Mark can be the title of the data of request, can be the number of request
According to the mark of any data that can mark request such as ID, the embodiment of the present invention is not limited.For example, data requesting instructions are one
Video playback instruction is planted, represents that user plays the corresponding video A of the instruction to first server request, video playback is wrapped in instructing
The mark of the video A containing request.Wherein, the request data includes file, webpage or database.Usually, by data mark
Know retrieval data storage service system, if not retrieving respective items, can determine that corresponding data is not stored in locally
Server.
The method of data Hui Yuan that the present invention is provided, is tested not by increasing proxy server in real network environment
The same quality for returning source algorithm, according to current network environment appropriate time source algorithm is selected.
Fig. 3 shows that the data of the embodiment of the present invention return the structural representation of source device.As shown in figure 3, the data are returned
Source device 30 includes：Instruct acquiring unit 301, the source unit 304 of source unit 303, second time of judging unit 302, first time, compare
Unit 305 and updating block 306.
Wherein, acquiring unit 301 is instructed to be used to obtain data requesting instructions, the data requesting instructions include number of request
According to mark.
In the present embodiment, data requesting instructions refer to the data requesting instructions of user input, and the instruction is used to indicate to use
Family includes the mark of the data of request to CDN system request data in data requesting instructions.The data can be video counts
According to, or the extended formatting such as image data data；Mark can be the title of the data of request, can be the number of request
According to the mark of any data that can mark request such as ID, the embodiment of the present invention is not limited.For example, data requesting instructions are one
Video playback instruction is planted, represents that user plays the corresponding video A of the instruction to first server request, video playback is wrapped in instructing
The mark of the video A containing request.Wherein, the request data includes file, webpage or database.
Judging unit 302 is used to judge whether to store the corresponding request data of the mark, if home server does not have
There is the corresponding request data of the storage mark, to multiple storage servers source data is obtained back.
Usually, data storage service system is retrieved by Data Identification, if not retrieving respective items, can be true
Determine corresponding data and be not stored in home server.
First time source unit 303 is used to, when home server needs to obtain back source data to multiple storage servers, lead to
One crossed in the multiple storage servers of first time source algorithms selection as first server, while sending back to proxy server
Sourse instruction.
In the present embodiment, user sends data requesting instructions by internet or LAN, when inspection on home server
Rope then needs to obtain back source data to storage server, then storage service less than the data indicated by the data requesting instructions
Device has multiple, then need to be used as first server by the multiple storage servers of first time source algorithms selection and provide back
Time source server of source data.
But returning source algorithm has various, in order in real network environment, the quality of other time source algorithm can be tested,
Proxy server is increased, wherein, the proxy server is connected with home server and multiple storage servers, local
Server sends back sourse instruction, i.e. request of data and refers to while obtaining back source data to multiple storage servers to proxy server
Order.
Second time source unit 304 is used for when the proxy server receives described time sourse instruction, by second time source
One in the multiple storage servers of algorithms selection is used as second server.
In the present embodiment, when the proxy server receives described time sourse instruction, by second time source algorithm choosing
Select in multiple storage servers time source server that source data is provided back as second server.
Wherein, first time source unit is additionally operable to perform the first operation, wherein, first operation is from described first
Server obtains back source data；Second time source unit is additionally operable to perform the second operation, wherein, second operation is from institute
State second server and obtain back source data.
In the present embodiment, first operation be：Will return source data from the locally downloading server of first server for
Family accesses, and the second operation is：Source data will be returned from the locally downloading server of second server for user's access.
Comparing unit 305 is used to compare the first Operation Log and the second Operation Log.
In the present embodiment, time source data and Operation Log of the first operation and the second operation are stored, its behaviour
Making daily record can include back source data size, speed of download, download time etc., and by comparing two operations comparative result is obtained,
If the speed of download of the first operation is faster than the second operation, it is known that first time source algorithm is better than second time source algorithm；If first
The speed of download of operation is slower than the second operation, it is known that second time source algorithm is better than first time source algorithm.
Updating block 306 is used to select one of first time source algorithm and second time source algorithm to update first according to comparative result
Return source algorithm.
In the present embodiment, one of first time source algorithm or second time source algorithm are selected as under according to comparative result
Time source algorithm of secondary first operation.
In a preferred embodiment, second time source algorithm is one or more, by multiple second time different sources
One in the multiple storage servers of algorithms selection is used as second server.
In the present embodiment, second time source algorithm can have multiple, and such as A returns source algorithm, B and returns source algorithm, C time source algorithm
Deng the one i.e. A storage servers returned in the multiple servers of source algorithms selection by A, by the B time multiple service of source algorithms selection
One in device is B storage servers, the one i.e. C storage servers returned in the multiple servers of source algorithms selection by C, respectively
Source data is downloaded back to proxy server, now can compare from A storage servers, B storage servers, C storage servers
A operations, B operations in first operation and the second operation, the speed of download of C operations, obtain optimum returns source algorithm.
The data that the present invention is provided return source device, and difference is tested in real network environment by increasing proxy server
The quality for returning source algorithm, selected appropriate to return source algorithm according to current network environment.
Correspondingly, the present invention also provides a kind of data and returns origin system, including data described above return source device and at least
Two to described time source device provides back the storage server of source service, source method is returned by above-mentioned CDN system, from least two
A server for being adapted to Hui Yuan is obtained in individual storage server.
Each or unit of system can be realized by hardware, firmware or software.Software is for example included using JAVA, C/C+
The coded program that the various programming languages such as +/C#, SQL are formed.Although providing the embodiment of the present invention in method and method legend
The step of and step order, but the step realizes that the executable instruction of logic function of regulation can be reconfigured,
So as to generate new step.The order of the step also should not be restricted solely to methods described and the step in method legend
Sequentially, can according to function need be adjusted at any time.For example some steps therein are held parallel or according to reverse order
OK.
System and a method according to the invention can be deployed on single or multiple servers.For example, can will be different
Dispose respectively on a different server, form private server.Or, can on multiple servers distributed deployment it is identical
Functional unit or system, to mitigate load pressure.The server is included but is not limited in same LAN and passed through
Multiple PCs, PC server, rolling reamer machine, supercomputer of Internet connections etc..
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, not yet
It is only described specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations.This explanation
These embodiments are chosen and specifically described to book, is in order to preferably explain the principle and practical application of the present invention, so that affiliated
Technical field technical staff can be used well using modification of the invention and on the basis of the present invention.The protection model of the present invention
The scope that enclosing should be defined by the claims in the present invention is defined.
Claims (10)
1. a kind of method of data Hui Yuan, including：
When home server needs to obtain back source data to multiple storage servers, deposit by the way that first time source algorithms selection is multiple
One in server is stored up as first server, while sending back sourse instruction to proxy server；
When the proxy server receive it is described return sourse instruction when, by the multiple storage servers of second time source algorithms selection
One as second server；
The first operation and the second operation are performed, wherein, first operation is to obtain back source data from the first server, institute
It is to obtain back source data from the second server to state the second operation；
Relatively the first operation and the second operation；
One of first time source algorithm and second time source algorithm is selected to update first time source algorithm according to comparative result.
2. method according to claim 1, wherein, methods described also includes：
Data requesting instructions are obtained, the data requesting instructions include the mark of request data；
Judge whether home server stores the corresponding request data of the mark；
If home server does not store the corresponding request data of the mark, to multiple storage servers source number is obtained back
According to.
3. method according to claim 2, wherein, the request data includes file, webpage or database.
4. method according to claim 1, wherein, second time source algorithm is one or more, by multiple different the
One in the multiple storage servers of two times source algorithms selections is used as second server.
5. a kind of data return source device, including：
First time source unit, for when home server needs to obtain back source data to multiple storage servers, by first
Return the multiple storage servers of source algorithms selection in one as first server, while referring to the proxy server source of sending back
Order；
Second time source unit, for when the proxy server receives described time sourse instruction, by second time source algorithm choosing
One in multiple storage servers is selected as second server；
Wherein, first time source unit is additionally operable to perform the first operation, wherein, first operation is from the first service
Device obtains back source data；
Second time source unit is additionally operable to perform the second operation, wherein, second operation is to obtain from the second server
Fetch source data；
Comparing unit, for comparing the first operation and the second operation；
Updating block, calculates for selecting one of first time source algorithm and second time source algorithm to update first go back to source according to comparative result
Method.
6. device according to claim 5, wherein, described device also includes：
Instruction acquiring unit, for obtaining data requesting instructions, the data requesting instructions include the mark of request data；
Judging unit, for judging whether to store the corresponding request data of the mark, if home server is not stored
It is described to identify corresponding request data, obtain back source data to multiple storage servers.
7. device according to claim 6, wherein, the request data includes file, webpage or database.
8. device according to claim 5, wherein, second time source algorithm is one or more, by multiple different the
One in the multiple storage servers of two times source algorithms selections is used as second server.
9. a kind of content distribution network system, including data returns source device and at least two to described time source device provides back source clothes
The storage server of business,
Wherein, the data are returned source device and are included：
First time source unit, for when home server needs to obtain back source data to multiple storage servers, by first
Return the multiple storage servers of source algorithms selection in one as first server, while referring to the proxy server source of sending back
Order；
Second time source unit, for when the proxy server receives described time sourse instruction, by second time source algorithm choosing
One in multiple storage servers is selected as second server；
Wherein, first time source unit is additionally operable to perform the first operation, wherein, first operation is from the first service
Device obtains back source data；
Second time source unit is additionally operable to perform the second operation, wherein, second operation is to obtain from the second server
Fetch source data；
Comparing unit, for comparing the first operation and the second operation；
Updating block, calculates for selecting one of first time source algorithm and second time source algorithm to update first go back to source according to comparative result
Method.
10. content distribution network system according to claim 9, wherein, the data return source device also to be included：
Instruction acquiring unit, for obtaining data requesting instructions, the data requesting instructions include the mark of request data；
Judging unit, for judging whether to store the corresponding request data of the mark, if home server is not stored
It is described to identify corresponding request data, obtain back source data to multiple storage servers.
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| CN107995314A (en) * | 2017-12-21 | 2018-05-04 | 蛮蛮天下（北京）网络科技有限公司 | CDN network system and its network return source method |
| CN108337327A (en) * | 2018-04-26 | 2018-07-27 | 拉扎斯网络科技（上海）有限公司 | A kind of resource acquiring method and proxy server |
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| CN103747112A (en) * | 2013-12-24 | 2014-04-23 | 乐视网信息技术（北京）股份有限公司 | CDN back-to-source method, first server and system thereof |
| CN104980416A (en) * | 2014-07-31 | 2015-10-14 | 腾讯科技（深圳）有限公司 | Data access method, device and system in content distribution network |
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| CN107995314A (en) * | 2017-12-21 | 2018-05-04 | 蛮蛮天下（北京）网络科技有限公司 | CDN network system and its network return source method |
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