CN110381129A - - kind of the extension CDN system based on extension node - Google Patents
- kind of the extension CDN system based on extension node Download PDFInfo
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- CN110381129A CN110381129A CN201910627837.1A CN201910627837A CN110381129A CN 110381129 A CN110381129 A CN 110381129A CN 201910627837 A CN201910627837 A CN 201910627837A CN 110381129 A CN110381129 A CN 110381129A
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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
-
- 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
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
-
- 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]
-
- 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
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the invention discloses-kind of the extension CDN systems based on extension node, including extending the two-stage CDN framework that node forms by internet tradition CDN and several CDN, extend node by disposing a miniature CDN in the local area network of each individual business scene, extend as internet tradition CDN, save lease IDC computer room, the expense for buying IDC bandwidth, reduces CDN construction cost, reduces the bandwidth cost under business scenario because of video stream media service；With the seamless fusion of internet tradition CDN, does not need internet tradition CDN and make any modification, it is whole to business scenario offer file or video stream media service as a part of internet tradition CDN that CDN extends node.
Description
Technical field
The present embodiments relate to Internet technical fields, and in particular to-kind of the extension CDN system based on extension node.
Background technique
The full name of CDN is Content Delivery Network, i.e. content distributing network.CDN be building network it
On content distributing network, by the Edge Server for being deployed in various regions, by the load balancing of central platform, content distribution,
The functional modules such as scheduling, content needed for obtaining user nearby reduce network congestion, improve user's access response speed and hit
Rate.The key technology of CDN mainly has content storage and distribution technology.
The basic principle of CDN is that various cache servers are widely used, these cache servers are distributed to user's access
In the area of Relatively centralized or network, when user accesses website, distance is directed toward in the access of user using global load technology
On nearest cache server working properly, requested by cache server directly in response to user.
The traditional CDN in internet is constructed on the basis of carrier ID C computer room, and CDN operating cost is rented by server, rack
It rents, IDC outlet bandwidth is constituted, higher cost.
Summary of the invention
For this purpose, extension CDN system of the offer of the embodiment of the present invention-kind based on extension node, by each independent quotient
The miniature CDN of deployment one extends node in the local area network of industry scene, extends as internet tradition CDN, to solve existing skill
Cause CDN operating cost by server, machine on the basis of carrier ID C computer room since the traditional CDN in internet is constructed in art
The problem of frame lease, IDC outlet bandwidth are constituted, higher cost.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
- kind of the extension CDN system based on extension node, which is characterized in that including by internet tradition CDN and several CDN
Extend the two-stage CDN framework of node composition.
The embodiment of the present invention is further characterized in that it is that the quotient is relied in independent business scenario that the CDN, which extends node,
One miniature CDN of the LAN environment deployment of industry scene.
The embodiment of the present invention is further characterized in that the CDN, which extends node, both can be used as the internet tradition CDN's
A part can also be detached from internet tradition CDN independent operating.
The embodiment of the present invention is further characterized in that it includes dispatch service and several fringe nodes that the CDN, which extends node,.
The embodiment of the present invention is further characterized in that the dispatch service can be deployed in the fringe node.
The embodiment of the present invention is further characterized in that it includes file synchronisation method, specific steps that the CDN, which extends node, are as follows:
Step 101, CDN extend the file that node stores internet tradition CDN on demand, and it is fixed to support to synchronize according to business scenario
Justice；
Step 102, according to incremental update listed files information, from the fringe node of internet tradition CDN actively to described
CDN extends node and carries out file synchronization；
Step 103, each business scenario store a synchronous regime for each file, after medium synchronously completes,
Tab file synchronously completes state.
The embodiment of the present invention is further characterized in that it further includes dispatching method, specific steps that the CDN, which extends node, are as follows:
Step 201 extends in node in CDN, disposes independent lightweight dispatch service；
Step 202, dispatch service carry out robin scheduling according to RR algorithm.
The embodiment of the present invention is further characterized in that the CDN extends the mutual dispatch service of node and is independent of each other.
The embodiment of the present invention is further characterized in that, the RR algorithm are as follows:
There is separate unit fringe node multiple IP, the IP of multiple network interface cards of more edge of table nodes to be followed successively by IP1, IP2 ... IPn,
The scheduling times of each IP are C, and the IP address that minimum scheduling times MIN (C) is selected in scheduling every time is scheduled, every to complete one
Secondary scheduling, the C=C+1 of corresponding IP.
The embodiment of the present invention is further characterized in that, the dispatching method further include: utilizes the coarseness load of domain name mapping
Equilibrium is completed to access the load balance scheduling of edge node file.
The embodiment of the present invention has the advantages that
The present invention extends node by disposing a miniature CDN in the local area network of each individual business scene, makees
For internet tradition CDN extension, lease IDC computer room is saved, the expense of IDC bandwidth is bought, reduces CDN construction cost, is dropped
Because of the broadband cost of video stream media service under low business scenario；
The present invention and the seamless fusion of internet tradition CDN do not need internet tradition CDN and make any modification, and CDN extends section
Point is whole to business scenario offer file or video stream media service as a part of internet tradition CDN.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the schematic diagram of CDN system in embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As shown in Figure 1, by taking apartment, medical treatment and three, hotel business scenario as an example；The present invention provides-kind based on prolonging
Stretch the extension CDN system of node comprising the two-stage CDN framework that node forms is extended by internet tradition CDN and several CDN；
It is a miniature CDN for relying on the LAN environment of the business scenario to dispose in independent business scenario that CDN, which extends node,
CDN, which extends node, both can be used as a part of internet tradition CDN, can also be detached from internet tradition CDN independent operating.
In the present embodiment, it is respectively that hotel local area network CDN extends node, apartment CDN extends node that CDN, which extends node,
Extend with medical CDN and save, it includes dispatch service and several fringe nodes that three kinds of CDN, which extend node,；Dispatch service can be deployed in
In fringe node.
Extend node by disposing a miniature CDN in the local area network of each individual business scene, as interconnection
It nets tradition CDN to extend, saves lease IDC computer room, buy the expense of IDC bandwidth, reduce CDN construction cost, reduce quotient
Because of the broadband cost of video stream media service under industry scene.
Wherein, it includes file synchronization function and scheduling feature that CDN, which extends node, and the implementation of two functions is respectively such as
Under:
File synchronization function the following steps are included:
Step 101, CDN extend the file that node stores internet tradition CDN on demand, and it is fixed to support to synchronize according to business scenario
Justice；
Step 102, according to incremental update listed files information, actively prolong from the fringe node of internet tradition CDN to CDN
It stretches node and carries out file synchronization；
Step 103, each business scenario store a synchronous regime for each file, after medium synchronously completes,
Tab file synchronously completes state.
Scheduling feature the following steps are included:
Step 201 extends in node in CDN, dispose independent lightweight dispatch service, and it is mutual that CDN extends node
Dispatch service is independent of each other；
Step 202, dispatch service carry out robin scheduling, RR algorithm according to RR algorithm are as follows:
There is separate unit fringe node multiple IP, the IP of multiple network interface cards of more edge of table nodes to be followed successively by IP1, IP2 ... IPn,
The scheduling times of each IP are C, and the IP address that minimum scheduling times MIN (C) is selected in scheduling every time is scheduled, every to complete one
Secondary scheduling, the C=C+1 of corresponding IP.
Dispatching method also can use the coarseness load balancing of domain name mapping, complete equal to the load of edge node file
Weighing apparatus scheduling access.
By present embodiment, OTT Broadcast Control platform (internet television integrates Broadcast Control platform) video-on-demand service is integrated, no
Copyright Risk is only evaded, while also having ensured that user watches the fluency of video；Extend the seamless involvement internet tradition of node
CDN。
Higher to the appreciation requirement of video resolution, fluency and picture color etc. for OTT Broadcast Control platform, this can make
Program stream must use high code rate, it is meant that broadcasting and TV OTT stream pushing server more disperses than internet OTT deployment, ability
Reach program transmission requirement, needs to support by CDN system.
In the present embodiment, OTT Broadcast Control platform, the CDN system are directed to further include: Hadoop cluster is provided from center
Source library extracts OTT programme content, is injected into Hadoop distributed file system in HDFS, and in internet, gamut, which is realized, divides
Cloth redundant storage, user, which accesses Hadoop cluster, can need to pull slice text from Hadoop cluster according to user's program request
Part.
In the present embodiment, it is flat to be included in introducing CDN traffic scheduling in traditional CDN networking structure for the dispatch service
Platform, is added cooperative scheduling layer in content active layer and CDN network layer, and CDN traffic scheduling platform is located at the layer；It is management that it, which is acted on,
Different CDN in CDN network layer, and realize the cooperative scheduling of business access.
Wherein, CDN traffic scheduling platform is divided into three traffic scheduling, scheduling strategy management and unified management modules.
Traffic scheduling module includes parsing, scheduling, forwarding three parts submodule: parsing module is for accepting user LDNS hair
The DNS request risen, and complete request instruction parsing；Scheduler module for scheduling strategy execute, according to strategy and user location and
The information such as IP carry out strategy matching, select distribution network.Forwarding module is executed for CNAME, and user's request is passed through CNAME's
Domain name mapping power gives scheduling selection CDN.
Scheduling strategy management module includes following five parts:
It is dispatched based on type of service: being scheduled according to client's distribution service type, contracted by request domain name and client
Situation judges type of service, such as dynamic, static state, program request, live streaming, and service available CDN is selected to be distributed.
Quality scheduling is accessed based on user: according to log analysis or the access quality of testing result, and selecting high quality
CDN is distributed, for example, user's access is of poor quality, then it is schedulable to other CDN offer service.
Dispatched based on user sources: according to user sources information, including user operator and province area etc., selection can be mentioned
It is distributed for the CDN of service, for example, user is dispatched to self-built CDN in netting, nets outer user and be dispatched to third party CDN.
Based on cost dispatch: being worth according to the construction of different CDN or purchase cost and customer grade, select corresponding CDN
It is distributed.It specifies manufacturer to dispatch based on client: according to customer requirement, CDN service quotient can be specified to provide service by client.
The weight of Different Strategies can be configured, and carry out eventually by weighting algorithm selection CDN according to the difference of customer demand
Distribution.
Uniform management module is responsible for and service operation platform and network for storing, analyzing user access logs
Operation platform is docked.
In the present embodiment, CDN system is extended in order to meet current business demand, and fully considers the following industry
The needs of business development need to carry out storage dilatation.
Comprising: which SAN stores equipment, optical fiber switch, NAS gateway, fibre channel disk array；It is logical that SAN stores equipment
It crosses optical fiber switch to connect with NAS gateway, NAS gateway and fibre channel disk array are connected in the bus of server.
NAS gateway is added in the case where unified SAN stores equipment framework, NAS gateway and other main business system hosts are total
Enjoy the storage resource under unified SAN storage equipment framework, thus realize meet main business system high-performance, highly reliable number
While according to requirements for access, demand of a large amount of edge service systems to storage resource is taken into account by the NAS gateway of addition, to make
Mature SAN storage equipment architecture technology and mature NAS gateway technique perfection are integrated, realize really storage information integration.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of based on the extension CDN system for extending node, which is characterized in that including being prolonged by internet tradition CDN and several CDN
Stretch the two-stage CDN framework of node composition.
2. according to claim 1-kind of extension CDN system based on extension node, which is characterized in that the CDN extends section
Point is a miniature CDN for relying on the LAN environment of the business scenario to dispose in independent business scenario.
3. according to claim 1 or claim 2-kind of extension CDN system based on extension node, which is characterized in that the CDN prolongs
It stretches node both and can be used as a part of the internet tradition CDN, internet tradition CDN independent operating can also be detached from.
4. according to claim 3-kind of extension CDN system based on extension node, which is characterized in that the CDN extends section
Point includes dispatch service and several fringe nodes.
5. according to claim 4-kind of extension CDN system based on extension node, which is characterized in that the dispatch service
It can be deployed in the fringe node.
6. according to claim 1-kind of extension CDN system based on extension node, which is characterized in that the CDN extends section
Point includes file synchronisation method, specific steps are as follows:
Step 101, CDN extend the file that node stores internet tradition CDN on demand, support according to the synchronous definition of business scenario；
Step 102, according to incremental update listed files information, actively prolong from the fringe node of internet tradition CDN to the CDN
It stretches node and carries out file synchronization；
Step 103, each business scenario store a synchronous regime for each file, after medium synchronously completes, label
File synchronization completion status.
7. according to claim 1-kind of extension CDN system based on extension node, which is characterized in that the CDN extends section
Point further includes dispatching method, specific steps are as follows:
Step 201 extends in node in CDN, disposes independent lightweight dispatch service；
Step 202, dispatch service carry out robin scheduling according to RR algorithm.
8. according to claim 1-kind of extension CDN system based on extension node, which is characterized in that the CDN extends section
The mutual dispatch service of point is independent of each other.
9. according to claim 8-kind of extension CDN system based on extension node, which is characterized in that the RR algorithm are as follows:
There is separate unit fringe node multiple IP, the IP of multiple network interface cards of more edge of table nodes to be followed successively by IP1, IP2 ... IPn, each
The scheduling times of a IP are C, and the IP address that minimum scheduling times MIN (C) is selected in scheduling every time is scheduled, and every completion is primary to adjust
Degree, the C=C+1 of corresponding IP.
10. according to claim 8-kind of extension CDN system based on extension node, which is characterized in that the dispatching method
Further include: using the coarseness load balancing of domain name mapping, complete to access the load balance scheduling of edge node file.
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| CN113596512A (en) * | 2021-07-28 | 2021-11-02 | 珠海迈科智能科技股份有限公司 | Efficient and economical video stream distribution method and system |
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