CN107172186B - Content acquisition method and system - Google Patents
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- CN107172186B CN107172186B CN201710439209.1A CN201710439209A CN107172186B CN 107172186 B CN107172186 B CN 107172186B CN 201710439209 A CN201710439209 A CN 201710439209A CN 107172186 B CN107172186 B CN 107172186B
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- 238000001514 detection method Methods 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000004590 computer program Methods 0.000 description 1
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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
- 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
- H04L67/50—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
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Abstract
The application discloses a kind of content acquisition method and system, is related to Internet technical field, is able to solve the problem of UE gets the overlong time of object content.The described method includes: UE sends content acquisition request to GSLB；Then, GSLB is detected in CDN with the presence or absence of the first edge node of storage object content；If so, GSLB sends first edge address of node to UE, so that UE obtains object content from first edge node；If it is not, GSLB sends second edge address of node to UE, and sourse instruction is sent back to second edge node；UE sends content acquisition request according to second edge address of node, to second edge node；Second edge node obtains object content according to sourse instruction is returned by way of Hui Yuan；Finally, the content acquisition request that second edge node is sent according to UE, sends object content to UE.During the application is suitable for content acquisition.
Description
Technical field
This application involves Internet technical field more particularly to a kind of content acquisition method and systems.
Background technique
Content distributing network (Content Delivery Network, CDN) is by placing node clothes everywhere in gateway
One layer of intelligent virtual network that business device is constituted.In CDN, global load balancing server (Global Server Load
Balance, GSLB) it can be according in real time according to the network flow of each fringe node and load state and and user equipment
The distance of the address of (User Equipment, UE) is determined as UE and provides the fringe node of business service, and provides the side to UE
Edge address of node, after UE sends content acquisition request to fringe node, fringe node can first determine whether itself stores
UE needs the object content obtained.Due to the limitation of fringe node itself memory space, a small amount of data, therefore base can only be cached
There is no caching of target content probably in the fringe node that the factors such as load state and network quality determine.In fringe node
In the case where not having caching of target content, fringe node needs to obtain object content by way of Hui Yuan.Due to returning source procedure
The time is needed, UE is caused to get the overlong time of object content.
Summary of the invention
The application provides a kind of content acquisition method and system, is able to solve the overlong time that UE gets object content
Problem.
In order to achieve the above objectives, the application adopts the following technical scheme that
In a first aspect, the application provides a kind of content acquisition method, which comprises
UE sends content acquisition request to GSLB, and the content acquisition request is used for request object content；
It whether there is first edge node in the GSLB detection CDN, the first edge node is to be stored with the mesh
Mark the fringe node of content；
If so, the GSLB sends the first edge address of node to the UE, so that the UE is from described the
One fringe node obtains object content；
If it is not, then the GSLB determines that second edge node, the second edge node are used to provide business to the UE
Service；
The GSLB sends second edge address of node to the UE, and refers to the second edge node source of sending back
It enables, described time sourse instruction is used to indicate the second edge node and obtains the object content by way of Hui Yuan；
When the UE receives the second edge address of node, the UE is into second edge node transmission
Hold acquisition request；
When the second edge node receives back sourse instruction, the second edge node is obtained by way of Hui Yuan
The object content；
The second edge node sends the object content to the UE according to the content acquisition request.
Second aspect, the embodiment of the present application provide a kind of content acquisition system, the system comprises:
UE, for sending content acquisition request to GSLB, the content acquisition request is used for request object content；
The GSLB, for detecting with the presence or absence of first edge node in CDN, the first edge node is to store
State the fringe node of object content；If so, send the first edge address of node to the UE, so that the UE is from institute
It states first edge node and obtains object content；If not, it is determined that second edge node, the second edge node are used for described
UE provides business service；The second edge address of node is sent to the UE, and is sent back to the second edge node
Sourse instruction, described time sourse instruction are used to indicate the second edge node and obtain the object content by way of Hui Yuan；
The UE is also used to when receiving the second edge address of node, and Xiang Suoshu second edge node is sent
Content acquisition request；
The second edge node is also used to obtain by way of Hui Yuan described when receiving described time sourse instruction
Object content；According to the content acquisition request, Xiang Suoshu UE sends the object content.
In compared with the prior art if GSLB determine fringe node in uncached object content, even if other in CDN
Fringe node in cached object content, the fringe node that GSLB is determined can only also be obtained in target by way of Hui Yuan
Hold, UE is caused to get the overlong time of object content, the embodiment of the present application provides a kind of content acquisition method and system, works as UE
When needing to obtain object content, cached the first edge node of object content as long as existing in CDN, GLSB can by this
One edge address of node returns to UE, so that UE obtains object content, which reduces unnecessary time source procedure, from
And reduce the time that UE gets object content.In addition, GSLB can also choose even if first edge node is not present in CDN
One second edge node simultaneously indicates that second edge node obtains object content by way of Hui Yuan, while GSLB also can be to UE
Second edge address of node is sent, such second edge node just receives the content acquisition request of UE transmission without waiting,
It determines that itself not stored object content just carries out back source procedure later again, but Hui Yuan is directly started according to the sourse instruction of returning of GLSB
Process reduces the time that UE gets object content.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of system architecture diagram of CDN provided by the present application；
Fig. 2 is a kind of flow chart of content acquisition method provided by the present application；
Fig. 3 is the structural schematic diagram that a kind of content provided by the present application obtains system；
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.
As shown in Figure 1, the application provides the system architecture diagram of CDN a kind of, shown CDN includes: UE10, GSLB11, edge
Node 12, Area Node 13, central node 14 and Source Site 15.Wherein, UE10 is that one kind provides a user voice and/or number
According to the equipment of connectivity, for example, handheld device, mobile unit etc. with wireless connecting function.Common UE includes: hand
Machine, tablet computer, laptop, palm PC, mobile internet device (mobile internet device, MID), can
Wearable device, such as smartwatch, Intelligent bracelet, pedometer etc..When UE10 needs to obtain object content, UE10 can be to
The fringe node 12 that GSLB11 is determined sends content acquisition request, to obtain object content from the fringe node 12.GSLB11
It, can be according to the load state of fringe node 12 (including CPU, bandwidth occupancy etc. as the flow scheduling system of core in CDN
Data), network quality (including network delay, packet loss) and the distance between with UE10, the optimal edge section of comprehensive selection
Point 12 provides business service to UE10.Fringe node 12, Area Node 13, central node 14 all have caching function, Neng Goucun
Store up most of web object, such as the picture files such as html, htm, php page file and gif, bmp and extended formatting
File.In memory capacity, central node 14 is greater than Area Node 13, and Area Node 13 is greater than fringe node 12 again.Edge
Node 12 is used to respond the content acquisition request of UE10, provides object content to UE10.Area Node 13 and at least one edge
Node 12 connects, and the fringe node 12 that Area Node 13 is used to administer to it provides content.Central node 14 and at least one area
Domain node 13 connects, and the Area Node 13 that central node 14 is used to administer to it provides content.Source Site 15 is in storage target
The original site of appearance can provide object content to the central node 14 of CDN.
In order to solve the problems, such as that UE gets the overlong time of object content, the embodiment of the present application provides a kind of content acquisition
Method is applied in CDN shown in FIG. 1.As shown in Figure 2, which comprises
101, UE sends content acquisition request to GSLB.
Wherein, the content acquisition request is used for request object content.The content acquisition request carries described
The content identification of object content.The object content includes but is not limited to: video file, music file, picture file and webpage
File.
102, GSLB, which is detected, whether there is first edge node in CDN.
Wherein, the first edge node is the fringe node for being stored with the object content.
During specific implementation, each fringe node is sent currently stored interior in CDN described in the GSLB periodic receipt
The content identification of appearance, then the GSLB stores the corresponding content identification of each fringe node in the CDN.It is sent receiving UE
Content acquisition request after, the GSLB judges in the CDN of itself storage in the corresponding content identification of each fringe node,
With the presence or absence of the content identification of the object content.If so, GSLB determines that there are first edge nodes in CDN, and according to side
The corresponding relationship of edge node and content identification determines first edge address of node, then executes step 103.If it is not, then GSLB
Determine that there is no first edge nodes in CDN, next execute step 104 to 109.
103, GSLB sends the first edge address of node to the UE, so that the UE is from the first edge section
Point obtains object content.
In a kind of specific implementation, step 103 includes:
103a, GSLB send the first edge address of node to the UE.
It should be noted that if only existing a first edge node, then GSLB sends the first edge to the UE
Address of node；At least two first edge node if it exists, then GSLB is according to the network quality of first edge node, load shape
Condition or at a distance from the address of UE, determines optimal first edge node, and optimal first edge node is sent to UE
Address.
103b, UE send content acquisition request to the first edge node.
103c, first edge node send object content to UE according to content acquisition request.
104, GSLB determines second edge node.
Wherein, the second edge node is used to provide business service to the UE.
During specific implementation, the GSLB according to the load state of fringe node each in the CDN, network quality or
The distance between person and UE determine the second edge node, so as to can be load state in CDN most light for second edge node
Fringe node or the optimal fringe node of network quality, or the fringe node nearest with the distance between UE.Example
Such as, GSLB detects the network delay of each fringe node in CDN, determines that the minimum fringe node of network delay is second edge section
Point.Alternatively, GSLB detects the packet loss of each fringe node in CDN, determine that the minimum fringe node of packet loss is second edge
Node.
105, GSLB sends second edge address of node to the UE.
106, GSLB sends back sourse instruction to the second edge node.
Wherein, described time sourse instruction is used to indicate the second edge node and is obtained in the target by way of Hui Yuan
Hold.Described time sourse instruction can carry the content identification of the object content.
It should be noted that step 105,106 may be performed simultaneously, it is not carried out successive difference sequentially.
107, when the UE receives the second edge address of node, the UE is sent out to the second edge node
Send content acquisition request.
108, when the second edge node receives described time sourse instruction, the second edge node passes through Hui Yuan's
Mode obtains the object content.
During specific implementation, second edge node sends content acquisition request according to sourse instruction is returned, to Area Node.?
After Area Node receives the content acquisition request, Area Node detects whether itself stores the object content.If area
Domain node stores the object content, then the object content is sent to second edge node by Area Node；If Area Node
The object content is not stored, then Area Node can send content acquisition request to central node.It is received in central node
After the content acquisition request, central node detects whether itself stores the object content.If described in central node storage
Object content, then object content is sent to second edge node by Area Node by central node；If central node is not deposited
The object content is stored up, then central node can send content acquisition request to the Source Site of object content.Source Site is receiving
After content acquisition request, through central node, Area Node in a manner of dispatching step by step, object content is sent to the second side
Edge node.
Which kind of obtained in target it should be noted that the embodiment of the present application does not limit second edge node using time source mode
Hold, i.e., second edge node can also obtain object content using other time source in the prior art mode.
Further, after getting object content, the second edge node stores the object content, in order to
When other UE need to obtain same content, can directly it be obtained from the caching of the second edge node.
It should be noted that in the embodiment of the present application, step 107 and step 108 carry out parallel, therefore, compare
In the content acquisition method of single thread in the prior art, (i.e. UE first sends content acquisition request to fringe node, and fringe node connects
Receive content acquisition request and then obtain object content by way of Hui Yuan), content provided by the embodiments of the present application obtains
Method can reduce the time that UE gets object content.
109, second edge node sends the object content according to the content acquisition request, Xiang Suoshu UE.
In compared with the prior art if GSLB determine fringe node in uncached object content, even if other in CDN
Fringe node in cached object content, the fringe node that GSLB is determined can only also be obtained in target by way of Hui Yuan
Hold, UE is caused to get the overlong time of object content, the embodiment of the present application provides a kind of content acquisition method, when UE needs obtain
When taking object content, as long as there is the first edge node for having cached object content in CDN, GLSB can be by the first edge
Address of node returns to UE, so that UE obtains object content, which reduces unnecessary time source procedures, to reduce
UE gets the time of object content.In addition, GSLB can also choose in the case where first edge node is not present in CDN
One second edge node simultaneously indicates that second edge node obtains object content by way of Hui Yuan, while GSLB also can be to UE
Second edge address of node is sent, the process and UE of such second edge node Hui Yuan sends content to second edge node and obtain
The process of request is taken, can be carried out simultaneously, so that UE needs first to send content acquisition to fringe node in compared with the prior art
Request, fringe node reception content acquisition request determine the single thread method that object content carries out Hui Yuan again that itself do not store,
Content acquisition method provided by the embodiments of the present application can reduce the time that UE gets object content.
As shown in figure 3, the embodiment of the present application provides a kind of content acquisition system, for executing foregoing teachings acquisition methods.
The system comprises:
UE21, for sending content acquisition request to GSLB22, the content acquisition request is in request target
Hold.
The GSLB22, for whether there is first edge node 23, first side in detection content distribution network CDN
Edge node 23 is the fringe node for being stored with the object content；If so, sending the first edge node to the UE21
23 address, so that the UE21 obtains object content from the first edge node 23；If not, it is determined that second edge node
24, the second edge node 24 is used to provide business service to the UE21；The second edge section is sent to the UE21
The address of point 24, and sourse instruction is sent back to the second edge node 24, described time sourse instruction is used to indicate second side
Edge node 24 obtains the object content by way of Hui Yuan.
The UE21 is also used to when receiving the address of the second edge node 24, Xiang Suoshu second edge node
24 send content acquisition request.
The second edge node 24 is also used to obtain institute by way of Hui Yuan when receiving described time sourse instruction
State object content；According to the content acquisition request, Xiang Suoshu UE21 sends the object content.
Further, the GSLB22, be also used to each fringe node in CDN described in periodic receipt send it is currently stored
The content identification of content；Store the corresponding content identification of each fringe node in the CDN.
Further, the content acquisition request carries the content identification of the object content.The GSLB22, specifically
In the CDN for judging itself storage in the corresponding content identification of each fringe node, if there are the object contents
Content identification；If it exists, it is determined that there are the first edge nodes 23 in the CDN；If it does not exist, it is determined that the CDN
In be not present the first edge node 23.
Further, the GSLB22, specifically for load state, the network according to fringe node each in the CDN
Quality or the distance between with UE, determines the second edge node 24.
Further, the second edge node 24, be also used to obtained by way of Hui Yuan the object content it
Afterwards, the object content is stored.
In compared with the prior art if GSLB determine fringe node in uncached object content, even if other in CDN
Fringe node in cached object content, the fringe node that GSLB is determined can only also be obtained in target by way of Hui Yuan
Hold, UE is caused to get the overlong time of object content, the embodiment of the present application provides a kind of content acquisition system, when UE needs obtain
When taking object content, as long as there is the first edge node for having cached object content in CDN, GLSB can be by the first edge
Address of node returns to UE, so that UE obtains object content, which reduces unnecessary time source procedures, to reduce
UE gets the time of object content.In addition, GSLB can also choose in the case where first edge node is not present in CDN
One second edge node simultaneously indicates that second edge node obtains object content by way of Hui Yuan, while GSLB also can be to UE
Second edge address of node is sent, the process and UE of such second edge node Hui Yuan sends content to second edge node and obtain
The process of request is taken, can be carried out simultaneously, so that UE needs first to send content acquisition to fringe node in compared with the prior art
Request, fringe node reception content acquisition request determine the process that object content carries out Hui Yuan again that itself do not store, the application
The content that embodiment provides obtains system, can reduce the time that UE gets object content.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Change or replacement within the technical scope of the present application should all be covered within the scope of protection of this application.Therefore, this Shen
Protection scope please should be subject to the protection scope in claims.
Claims (10)
1. a kind of content acquisition method, which is characterized in that the described method includes:
User equipment (UE) sends content acquisition request to global load balancing server GSLB, and the content acquisition request is for asking
Seek acquisition object content；
It whether there is first edge node in the GSLB detection content distribution network CDN, the first edge node is storage
There is the fringe node of the object content；
If so, the GSLB sends the first edge address of node to the UE, so that the UE is from first side
Edge node obtains object content；
If it is not, then the GSLB determines that second edge node, the second edge node are used to provide business service to the UE；
The GSLB sends the second edge address of node to the UE, and refers to the second edge node source of sending back
It enables, described time sourse instruction is used to indicate the second edge node and obtains the object content by way of Hui Yuan；
When the UE receives the second edge address of node, the UE sends content to the second edge node and obtains
Take request；
When the second edge node receives described time sourse instruction, the second edge node is obtained by way of Hui Yuan
The object content；
The second edge node sends the object content according to the content acquisition request, Xiang Suoshu UE.
2. the method according to claim 1, wherein the method also includes:
The content identification for the currently stored content that each fringe node is sent in CDN described in the GSLB periodic receipt；
The GSLB stores the corresponding content identification of each fringe node in the CDN.
3. according to the method described in claim 2, it is characterized in that, the content acquisition request carries the object content
Content identification；It whether there is first edge node in the GSLB detection CDN, specifically include:
The GSLB judges in the CDN of itself storage in the corresponding content identification of each fringe node, if there are the mesh
Mark the content identification of content；
If it exists, then the GSLB determines that there are the first edge nodes in the CDN；
If it does not exist, then the GSLB determines that there is no the first edge nodes in the CDN.
4. according to the method described in claim 3, specifically including it is characterized in that, the GSLB determines second edge node:
The GSLB is the distance between according to the load state of fringe node each in the CDN, network quality or with UE, really
The fixed second edge node.
5. method according to any one of claims 1 to 4, which is characterized in that pass through Hui Yuan in the second edge node
Mode obtain the object content after, the method also includes:
The second edge node stores the object content.
6. a kind of content obtains system, which is characterized in that the system comprises:
User equipment (UE), for sending content acquisition request, the content acquisition request to global load balancing server GSLB
For request object content；
The GSLB, for whether there is first edge node in detection content distribution network CDN, the first edge node is
It is stored with the fringe node of the object content；If so, the first edge address of node is sent to the UE, with toilet
It states UE and obtains object content from the first edge node；If not, it is determined that second edge node, the second edge node are used
In to the UE provide business service；The second edge address of node is sent to the UE, and to the second edge section
Point sends back sourse instruction, and described time sourse instruction is used to indicate the second edge node and obtains the target by way of Hui Yuan
Content；
The UE is also used to when receiving the second edge address of node, and Xiang Suoshu second edge node sends content
Acquisition request；
The second edge node is also used to obtain the target by way of Hui Yuan when receiving described time sourse instruction
Content；According to the content acquisition request, Xiang Suoshu UE sends the object content.
7. system according to claim 6, which is characterized in that the GSLB is also used in CDN described in periodic receipt each
The content identification for the currently stored content that fringe node is sent；Store the corresponding content identification of each fringe node in the CDN.
8. system according to claim 7, which is characterized in that the content acquisition request carries the object content
Content identification；
In the GSLB, the CDN specifically for judging itself storage in the corresponding content identification of each fringe node, if deposit
In the content identification of the object content；If it exists, it is determined that there are the first edge nodes in the CDN；If it does not exist,
Then determine that there is no the first edge nodes in the CDN.
9. system according to claim 8, which is characterized in that the GSLB is specifically used for according to side each in the CDN
The load state of edge node, network quality or the distance between with UE, determine the second edge node.
10. according to the described in any item systems of claim 6 to 9, which is characterized in that the second edge node is also used to
After obtaining the object content by way of Hui Yuan, the object content is stored.
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| CN109688171B (en) * | 2017-10-18 | 2021-05-25 | 中国电信股份有限公司 | Cache space scheduling method, device and system |
| CN108243344B (en) * | 2017-11-15 | 2020-11-24 | 平安科技（深圳）有限公司 | Training system server architecture, video data transmission method based on architecture and computer storage medium |
| CN108924579A (en) * | 2018-08-28 | 2018-11-30 | 深圳市网心科技有限公司 | Video networking system returns source network node equipment, method and storage medium |
| CN110891077A (en) * | 2018-09-07 | 2020-03-17 | 阿里巴巴集团控股有限公司 | CDN node detection method and device |
| CN113132251A (en) * | 2020-01-15 | 2021-07-16 | 中国电信股份有限公司 | Service scheduling method, device and storage medium |
| CN115208955B (en) * | 2021-03-29 | 2024-04-19 | 贵州白山云科技股份有限公司 | Method, device, computer equipment and medium for processing resource request |
| CN113938703A (en) * | 2021-09-24 | 2022-01-14 | 青岛海信移动通信技术股份有限公司 | Video acquisition system, method and equipment |
| CN114301848B (en) * | 2021-12-10 | 2023-08-29 | 阿里巴巴（中国）有限公司 | CDN-based communication method, system, equipment and storage medium |
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