CN107493346A - Resource file caching dissemination system and method based on multi-medium information spreading system - Google Patents
Resource file caching dissemination system and method based on multi-medium information spreading system Download PDFInfo
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- CN107493346A CN107493346A CN201710800033.8A CN201710800033A CN107493346A CN 107493346 A CN107493346 A CN 107493346A CN 201710800033 A CN201710800033 A CN 201710800033A CN 107493346 A CN107493346 A CN 107493346A
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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
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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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
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Information Transfer Between Computers (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention discloses a kind of resource file caching dissemination system based on multi-medium information spreading system and method, the system to include：Central server, including the communication server and WEB server, for handling the transmitting-receiving of instant messages and providing WEB management services for administrative staff；One-level Distributor, including multiple Distributors, for providing Resource Broker for terminal and two level Distributor and caching download function；Two level Distributor, including multiple Distributors, download function is cached for providing Resource Broker for terminal；And multiple terminals, by the present invention, access speed can be effectively improved, the service ability for avoiding real time access central server to reduce central server pressure and improve system.
Description
Technical field
The present invention relates to information publishing technology field, more particularly to a kind of resource based on multi-medium information spreading system
File cache dissemination system and method.
Background technology
In the prior art, the distribution platform of information is gradually diversified, and its field applied includes government, the letter of enterprise's building
Breath issue, the information issue of medical industry, the information issue in hotel and information issue of transportation industry etc..With network and lead to
The fast development of letter technology, internet information with its popularize wide advantage be increasingly being information publisher and weight
Depending on.
Traditional information issuing system only supports single server disposition, all business of all terminals all directly with the clothes
Business device interacts, including real time business and non-real-time service.So, when server connection terminal more than after, use process
In problems with occurs:
1st, program batch issues, and terminal batch causes very big to CPU, hard disk IO, internal memory of server etc. when downloading resource
The demand of this precious resources of pressure, particularly bandwidth constantly increases；
2nd, resource file distribution speed is slow, and without queuing mechanism, causing networking to block influences normal resource downloading business,
Finally there is resource and can not download, servers go down phenomena such as；
3rd, because all terminals are managed collectively by being networked to server, server once occur network blockage or
Servers go down, whole management backstage will be unable to effectively manage terminal.
The content of the invention
To overcome above-mentioned the shortcomings of the prior art, the purpose of the present invention is that providing a kind of multimedia messages that are based on sends out
The resource file caching dissemination system and method for distribution system, to improve access speed, avoid real time access central server from dropping
Low central server pressure and the service ability for improving system.
In view of the above and other objects, the present invention proposes a kind of resource file caching based on multi-medium information spreading system
Dissemination system, including：
Central server, including the communication server and WEB server, for handling the transmitting-receiving of instant messages and being custodian
Member provides WEB management services；
One-level Distributor, including multiple Distributors, for providing resource for terminal and two level Distributor
Proxy caching download function；
Two level Distributor, including multiple Distributors, download function is cached for providing Resource Broker for terminal；
And
Multiple terminals.
Further, the central server is connected to each Distributor of the one-level Distributor, each distribution
Server connects multiple terminal or two level Distributors respectively, and the two level Distributor connects multiple terminals.
Further, the Distributor provides Resource Broker caching download function, when resource is visited by terminal for the first time
Can be buffered after asking to the Distributor nearest from the terminal, subsequent terminal can directly arrive the Distributor and obtain the money
Source.
Further, the Distributor using con current control and is lined up processing strategy.
To reach above-mentioned purpose, the present invention also provides a kind of resource file caching point based on multi-medium information spreading system
Forwarding method, comprise the following steps：
Step 1, terminal send resource download request to central server, and request obtains Distributor address；
Step 2, download resource is asked to corresponding Distributor according to the address of the Distributor of acquisition；
Step 3, Distributor judge to request, judge that requested resource whether there is, if resource is present
Resource file is returned to terminal, corresponding resource is sent to upper level Distributor or central server if resource is not present
Download request；
Step 4, after the resource file of upper level Distributor or central server is obtained, the Distributor
The resource file is returned to terminal.
Further, the Distributor includes one-level Distributor and/or two level Distributor.
Further, also include before step 1：
Terminal sends resource downloading detection request to central server, and whether detection local side resource is complete；
The central server returns to the corresponding information of resource download request file according to resource download request；
The terminal judges that resource corresponding to the resource download request locally whether there is；
In resource corresponding to the resource download request when being locally not present, into step 1.
Further, if resource is in the presence of local corresponding to the resource download request, determine whether that local file is
It is no complete, if local file is complete, terminate download request；If local file is imperfect, the information of local file is added
Breakpoint transmission is realized in resource download request.
Further, the step for judging whether local file is complete is returned by local file size with central server
The server resource file size returned relatively judges whether local file is complete.
Further, timing cycle is needed when terminal is not completed and downloaded asks resource until resource to Distributor
Download and complete.
Compared with prior art, a kind of resource file caching dissemination system based on multi-medium information spreading system of the present invention
And method by design Distributor with provide Resource Broker cache download function so that resource access after can be buffered to point
Send out on server, the Web page that frequently accesses and object can will be needed to be stored on Distributor closer to the user, so
When subsequent terminal accesses again, can directly arrives Distributor and obtains the resource, is effectively improved access speed, keeps away
The service ability for having exempted from real time access central server to reduce central server pressure and improve system.
Brief description of the drawings
Fig. 1 is the system architecture that a kind of resource file based on multi-medium information spreading system of the present invention caches dissemination system
Figure；
Fig. 2 is the step flow that a kind of resource file based on multi-medium information spreading system of the present invention caches distribution method
Figure；
Fig. 3 is the step flow chart of specific embodiment of the invention breakpoint transmission；
Fig. 4 is that the resource file based on multi-medium information spreading system of the specific embodiment of the invention caches distribution method
Process schematic.
Embodiment
Below by way of specific instantiation and embodiments of the present invention are described with reference to the drawings, those skilled in the art can
Understand the further advantage and effect of the present invention easily by content disclosed in the present specification.The present invention can also pass through other differences
Instantiation implemented or applied, the various details in this specification also can be based on different viewpoints with application, without departing substantially from
Various modifications and change are carried out under the spirit of the present invention.
Fig. 1 is the system architecture that a kind of resource file based on multi-medium information spreading system of the present invention caches dissemination system
Figure.As shown in figure 1, a kind of resource file caching dissemination system based on multi-medium information spreading system of the present invention, including：Center
Server 10, one-level Distributor CDN (Content Delivery Network) 20, two level Distributor CDN
(Content Delivery Network) 30 and multiple terminals 40 form.
Wherein, central server 10 is made up of the communication server (Message Server) and WEB server, for handling
The transmitting-receiving of instant messages and provide WEB management services for administrative staff；One-level Distributor CDN (Content Delivery
Network) 20 by multiple Distributor CDN0KComposition, for for terminal 40 and two level Distributor CDN (Content
Delivery Network) 30 offer Resource Broker caching download functions；Two level Distributor CDN (Content
Delivery Network) 30 by multiple Distributor CDN1JComposition, downloaded for providing Resource Broker caching for terminal 40
Function.
Central server 10 is connected to each point of one-level Distributor CDN (Content Delivery Network) 30
Send out server CDN0K, each Distributor CDN0KMultiple terminals 40 or two level Distributor CDN1J, two fractions are connected respectively
Send out the multiple terminals 40 of server CDN1J connections.
As above scheme, Distributor CDN (Content Delivery Network), there is provided Resource Broker caching downloads work(
Can, resource can be buffered to the server after accessing for the first time, and follow-up other terminals can directly arrive server acquisition should
Resource, the service ability for avoiding real time access server to reduce server stress and improve system so that resource file caches
Distribute pressure to reduce, speed lifting.
In the specific embodiment of the invention, central server 10 adds the binding work(of terminal and two-stage Distributor
Energy；The http interfaces of query field of terminal download address and simple con current control function are provided.The communication server is whole system
Core hinge, once obstruction, whole system will collapse.Therefore, as far as possible should not be by logical without the returning to demand immediately of the task
Telecommunications services device is to reduce the impact to main business.
In the present invention, in order to ensure Distributor traffic handing capacity, Distributor (including one-level distribution service
Device uses con current control with two level Distributor, is lined up processing strategy, and the reasonable value of its con current control number is needed according to tool
Body environment is assessed, and assesses object emphasis number bandwidth resources, and specifically, such as when not having resource in caching, control is concurrently controlled
Number processed is less than 5；When resource in caching being present, con current control can reach 50, even more more；
Fig. 2 is the step flow that a kind of resource file based on multi-medium information spreading system of the present invention caches distribution method
Figure.As shown in Fig. 2 a kind of resource file caching distribution method based on multi-medium information spreading system of the present invention, including it is as follows
Step：
Step 201, terminal sends resource download request to central server, and request obtains Distributor address and protected
Deposit, that is to say, that terminal can obtain the relative of the Distributor that resource is cached according to the program bag that central server issues
Address, i.e. central server returns to the program bag issued according to resource download request to terminal can include the relative address of resource,
Terminal then obtains the address of Distributor accordingly.In the specific embodiment of the invention, Distributor includes two layers of distribution and taken
Business device, one layer is LAN environment, and one layer is configuration public network IP world, and in the present invention, Distributor provides Resource Broker
Download function is cached, can be buffered after resource accessed download for the first time to Distributor, subsequent terminal then can be direct
The resource is obtained to Distributor, without obtaining the resource from central server, can so be avoided genuinely convinced in real time access
Service ability of the business device to reduce central server pressure and improve system so that resource file caching distribution pressure is reduced, speed
Degree lifting.
Step 202, asked to download resource to corresponding Distributor according to the address of the Distributor of acquisition.Also
It is to say, terminal can submit to corresponding Distributor according to the relative address assembly of resource in the program bag issued and ask whether
It can download；
Now server can judge to request, and whether resource whether there is, concurrently exceed), it can be returned when can not download
Return terminal wait state
Step 203, whether Distributor judges to request, judge that requested resource whether there is, concurrently surpass
When, specifically, searched according to the resource of terminal request in the Resources list of Distributor, the Resources list can record often
The state of individual resource, for example, have download downloaded resource be not present etc.；According to judged result carry out request
Corresponding processing, resource file is returned to terminal if resource is present, here it should be noted that, when terminal is not completed to download
Then need timing cycle asks resource until resource downloading is completed, to upper level point if resource is not present to Distributor
Send out server or central server sends corresponding resource download request；Specifically, if resource is not present, distribute to upper level
The WEB server of server or central server asks the WEB server of resource, upper level Distributor or central server
Return to resource file；
Step 204, after the resource file of upper level Distributor or central server is obtained, Distributor is to end
End returns to resource file.In the specific embodiment of the invention, returned from one-level Distributor or two level Distributor to terminal
Return resource file.
Preferably, as shown in figure 3, before step 201, further comprise：
After program bag is taken, terminal sends resource downloading detection request to central server, and detection local side resource is
No complete, specifically, terminal sends resource downloading detection request to the communication server of central server, in the present invention, eventually
Hold the hash file for sending a request for downloading resource to central server；
Central server returns to the hash file of request download resource according to resource download request；
Terminal resource according to corresponding to the hash file of acquisition judges resource downloading detection request locally whether there is；
If local be not present, into step 201, if local have file corresponding to resource downloading detection request,
Determine whether local file is complete, specifically, the central server that can be returned by local file and central server
Resource size relatively judge whether local file complete, such as local file size be less than server resource size, then
Represent that the resource is imperfect, need further to download the resource by breakpoint transmission；
If local file is imperfect, the information for adding local file enters step 201, i.e., by the information of local file,
Such as the size of local file, resume starting position of file etc. and add in resource download request, realized breakpoint transmission.
Fig. 4 is that the resource file based on multi-medium information spreading system of the specific embodiment of the invention caches distribution method
Process schematic.The present invention will be further illustrated by a specific embodiment below：
On the one hand, the first step, when administrative staff send program by the WEB server selection operation of central server 10,
The transmission program download instruction is uploaded to the communication server of central server 10 by second step, WEB server, the 3rd step, in
The communication server of central server 10 sends download instruction, the 4th step to terminal 40, and terminal 40 takes to the WEB of central server 10
It to be engaged in the address of device request Distributor 20, the 5th step, the WEB server of central server 10 is to the return address of terminal 40, and the
Six steps, the server that terminal 40 is designated by the address ask resource and complete to download；
On the other hand, the first step, the hash file (Hash Code) of the transmission request download resource of terminal 40, second step, in
The communication server of central server 10 returns to hash file, the 3rd step to terminal 40, and whether terminal 40 judges hash file local
It has been existed that, if being not present, carry out resource download request；If in the presence of acquisition local file size and server resource file
Size, when in the same size, then without downloading, during cause not of uniform size, then breakpoint transmission, the 4th step are carried out, terminal 40 takes Hash
File asks resource, the 5th step, one-level Distributor 20 or two to one-level Distributor 20 or two level Distributor 30
Level Distributor 30 judges that resource whether there is, and resource file is returned to terminal 40 if resource is present, if resource is not present
Then to the WEB server request resource of, central server 10, the WEB server of central server 10 is to one-level Distributor
20 or two level Distributor 30 return resource file, then one-level Distributor 20 or two level Distributor 30 are again to end
End 40 returns to resource file；5th step, terminal 40, which is downloaded to finish to the communication server notice of central server 10, downloads result
And more new resources upstate.
In summary, the present invention a kind of resource file caching dissemination system and method based on multi-medium information spreading system
Download function is cached to provide Resource Broker so that resource can be buffered to distribution after accessing and service by designing Distributor
On device, the Web page that frequently accesses and object can will be needed to be stored on Distributor closer to the user, so when follow-up
Can directly arrives Distributor and obtains the resource when terminal accesses again, is effectively improved access speed, avoids reality
When access central server with reduce central server pressure and improve system service ability.
Because service has all been dispersed to different servers, it is mutually isolated between server, and every server
Fire wall can be pointedly set.When a certain server is attacked, other server can be with unaffected, will not
There are all situations for servicing and all collapsing.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.Any
Art personnel can be modified above-described embodiment and changed under the spirit and scope without prejudice to the present invention.Therefore,
The scope of the present invention, should be as listed by claims.
Claims (10)
1. a kind of resource file caching dissemination system based on multi-medium information spreading system, including：
Central server, including the communication server and WEB server, for handling the transmitting-receiving of instant messages and being carried for administrative staff
For WEB management services；
One-level Distributor, including multiple Distributors, for providing Resource Broker for terminal and two level Distributor
Cache download function；
Two level Distributor, including multiple Distributors, download function is cached for providing Resource Broker for terminal；And
Multiple terminals.
2. a kind of resource file caching dissemination system based on multi-medium information spreading system as claimed in claim 1, it is special
Sign is：The central server is connected to each Distributor of the one-level Distributor, each Distributor difference
Multiple terminal or two level Distributors are connected, the two level Distributor connects multiple terminals.
3. a kind of resource file caching dissemination system based on multi-medium information spreading system as claimed in claim 2, it is special
Sign is：The Distributor provides Resource Broker caching download function, can be delayed after resource first time is by terminal access
The Distributor can directly be arrived and obtain the resource by depositing to the Distributor nearest from the terminal, subsequent terminal.
4. a kind of resource file caching dissemination system based on multi-medium information spreading system as claimed in claim 1, it is special
Sign is：The Distributor using con current control and is lined up processing strategy.
5. a kind of resource file caching distribution method based on multi-medium information spreading system, comprises the following steps：
Step 1, terminal send resource download request to central server, and request obtains Distributor address；
Step 2, download resource is asked to corresponding Distributor according to the address of the Distributor of acquisition；
Step 3, Distributor judge to request, judge that requested resource whether there is, to end if resource is present
End returns to resource file, and corresponding resource downloading is sent to upper level Distributor or central server if resource is not present
Request；
Step 4, after the resource file of upper level Distributor or central server is obtained, the Distributor is to end
End returns to the resource file.
6. a kind of resource file caching distribution method based on multi-medium information spreading system as claimed in claim 5, it is special
Sign is：The Distributor includes one-level Distributor and/or two level Distributor.
7. a kind of resource file caching distribution method based on multi-medium information spreading system as claimed in claim 5, it is special
Sign is, also includes before step 1：
Terminal sends resource downloading detection request to central server, and whether detection local side resource is complete；
The central server returns to the corresponding information of resource download request file according to resource download request；
The terminal judges that resource corresponding to the resource download request locally whether there is；
In resource corresponding to the resource download request when being locally not present, into step 1.
8. a kind of resource file caching distribution method based on multi-medium information spreading system as claimed in claim 7, it is special
Sign is：If resource is in the presence of local corresponding to the resource download request, determine whether local file is complete, if this
Ground file is complete, then terminates download request；If local file is imperfect, the information of local file is added into resource download request
In realize breakpoint transmission.
9. a kind of resource file caching distribution method based on multi-medium information spreading system as claimed in claim 8, it is special
Sign is：The server that the step for judging whether local file is complete is returned by local file size and central server
Resource file size relatively judges whether local file is complete.
10. a kind of resource file caching distribution method based on multi-medium information spreading system as claimed in claim 5, it is special
Sign is：Timing cycle is needed when terminal is not completed and downloaded asks resource until resource downloading is completed to Distributor.
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| CN108337327A (en) * | 2018-04-26 | 2018-07-27 | 拉扎斯网络科技（上海）有限公司 | Resource acquisition method and proxy server |
| CN109286612A (en) * | 2018-08-28 | 2019-01-29 | 苏州浪潮智能软件有限公司 | A kind of triphasic multimedia resource publication flow control method |
| CN111328032A (en) * | 2018-12-17 | 2020-06-23 | 中国移动通信集团北京有限公司 | Method and device for sending video short message |
| CN113301350A (en) * | 2021-04-01 | 2021-08-24 | 广州市保伦电子有限公司 | Distributed audio and video task management and distribution system and implementation method |
| CN113507446A (en) * | 2021-06-16 | 2021-10-15 | 广州朗国电子科技股份有限公司 | Method and system for rapidly distributing multimedia programs, multimedia terminal and storage device |
| CN115002132A (en) * | 2022-05-23 | 2022-09-02 | 苏州思萃工业互联网技术研究所有限公司 | Distribution method, system and computer equipment for PCDN network pre-caching resource |
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Application publication date: 20171219 |