CN105187518A - CDN (Content Distribution Network) content distribution method and system - Google Patents
CDN (Content Distribution Network) content distribution method and system Download PDFInfo
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- CN105187518A CN105187518A CN201510521977.2A CN201510521977A CN105187518A CN 105187518 A CN105187518 A CN 105187518A CN 201510521977 A CN201510521977 A CN 201510521977A CN 105187518 A CN105187518 A CN 105187518A
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Abstract
The invention discloses a CDN (Content Distribution Network) content distribution method and system. The distribution system comprises a distribution master controller and a plurality of distribution hierarchies, wherein the distribution master controller is communicated with a plurality of distribution source nodes; each distribution hierarchy comprises a plurality of distribution nodes of which the network service quality is on the same service level; each distribution source node is communicated with all the distribution nodes in a first distribution hierarchy; each distribution node in the first distribution hierarchy is communicated with all the distribution nodes in a second distribution hierarchy, and so on; the plurality of distribution hierarchies serve for different user physical regions, and the service level of the network service quality of a previous distribution hierarchy is higher than the service level of the network service quality of a current distribution hierarchy; and the distribution nodes are IDC machine rooms. Through adoption of the CDN content distribution method and system, the content distribution speed can be effectively increased; the content publishing speed is increased; and latest content can be presented to a user at first time.
Description
Technical field
The present invention relates to a kind of CDN content distribution method and system.
Background technology
CDN and content distributing network.Its basic ideas avoid the Internet likely affects bottleneck and the link of data transmission bauds and stability as far as possible, content delivery obtained sooner, more stable.Its objective is and make user can obtain required content nearby, solve the situation that Internet network is crowded, improve the response speed of user's access websites.
IDC and Internet data center, that telecommunication department utilizes existing internet communication circuit, bandwidth resources, the telecommunication field level building environment of Criterion, for enterprise, government provide trust server, rent and the all-around service of the aspect such as relevant increment.
Self-built CDN system can rent a large amount of IDC, for storing content, provides service.Improve service quality, once distribution needs to be spread to by distributing contents as far as possible on more IDC machine room, more server.And content distributed fast, allow user's very first time can watch content, distribution content that just must be fast as far as possible.Due to complexity and the unsteadiness of network, content is long in all IDC distribution deadlines, has influence on the issue on-line time of content, thus has influence on the ability of Quick for service.In CDN system, Here it is conflict body, improve contents distribution speed, can only reduce the contents distribution of IDC machine room; Improve play quality, must be distributed to as much as possible for content on each IDC machine room again.Just think a same video, the CDN in many video website starts distribution simultaneously, speed faster or slower, and that family's video website very first time of fast CDN represents on webpage, and user can watch at once, and slow CDN video website just may cause customer loss.
The explanation of nouns that the present invention uses:
Network service quality: be a kind of abstract concept, for illustration of " well " degree of network service, often adopts the network performance parameters such as throughput, error rate, end-to-end delay, delay jitter to carry out define grid service quality.
Summary of the invention
Technical problem to be solved by this invention is, not enough for prior art, provides a kind of CDN content distribution method and system.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of CDN content distribution method, the main implementation procedure of the method is as follows: according to the network service quality between user and the IDC machine room of serving this user, the grade of service of IDC machine room according to network service quality is sorted, the IDC machine room of serving different user physics region is divided into multiple distribution level from high to low according to the grade of service; Wherein the first distribution level obtains distributing contents from distribution source, and the second distribution level obtains distributing contents from the first distribution level, and the rest may be inferred; When certain contents distribution task of execution, this contents distribution task is issued to all IDC machine rooms of all distribution levels, if all IDC machine rooms of a certain distribution level have been distributed, then think that the contents distribution of this distribution level completes, content is distributed to user by this distribution level; In like manner complete the contents distribution of all the other distribution levels; When all distribution levels complete contents distribution, this contents distribution task completes.
According to IDC machine room operator and network coverage, same operator will be belonged at least one distribution level and the IDC machine room that can cover same user's physics region is divided into same grouping; When certain contents distribution task of execution, when this contents distribution task is issued to the distribution level being provided with described grouping, if have at least an IDC machine room contents distribution to complete in certain grouping of this distribution level, then think that this packet content has been distributed, when all packet contents of this distribution level have been distributed, then think that the contents distribution of this distribution level completes, content is distributed to user by this distribution level; Meanwhile, completing IDC machine room in the grouping of contents distribution for all IDC machine rooms in this grouping provides content distribution service.
The IDC machine room of more than 90% network service quality can be provided to be divided into the first distribution level; The IDC machine room of 85% to 89.9% network service quality can be provided to be divided into the second distribution level; The IDC machine room of 80% to 84.9% network service quality can be provided to be divided into the 3rd distribution level, and the IDC machine room lower than 80% network service quality is not considered.This layered approach can meet the demand of CDN content distribution in most cases, ensures network service quality better.
Present invention also offers a kind of CDN content dissemination system realizing said method, comprise distribution master control; Described distribution master control and multiple distribution source node communication; It is characterized in that, also comprise multiple distribution level; Each distribution level comprises the distribution node that multiple network service quality is in the same grade of service; All all distribution nodes distributed in level communicate each distribution source node with first; All distribution nodes that each distribution node and second in first distribution level is distributed in level communicate, and the rest may be inferred; Described multiple distribution level serves different user's physics regions, and the grade of service of a upper distribution level network service quality is higher than the grade of service of current distribution level network service quality; Described distribution node and IDC machine room.
At least one distribution level comprises multiple grouping, comprises multiplely belonging to same operator and covering the distribution node of same user's physics region in each grouping; For the distribution level comprising multiple grouping, when this distribution level be not last distribution level time, its each grouping all with its on one distributes level, next distributes all nodes of level or all packet communications; When this distribution level is for last distribution level, its each grouping all with its on one distribute all nodes of level or all packet communications.Packet configuration makes system of the present invention be more prone to realize.
In the present invention, distributing layer number of stages is three layers; First distribution level comprises the IDC machine room that can provide more than 90% network service quality; Second distribution level comprises the IDC machine room that can provide 85% to 89.9% network service quality; 3rd distribution level comprises the IDC machine room that can provide 80% to 84.9% network service quality.The structure of three distribution levels can meet the demand of CDN content distribution in most cases, ensures network service quality better.
Compared with prior art, the beneficial effect that the present invention has is: the IDC machine room in CDN is divided into multiple distribution level by the present invention, level relation is had between distribution level, second distribution level can only pass through the first distributing layer level distributing contents, first distribution level can only pass through distribution source distributing contents, and the rest may be inferred; Meet CDN content distribution requirements, disposablely content can be published to more IDC machine room, realize quick, many parts, the efficient distribution of CND content; Both ensure that network service quality, and turn improved content and issue speed; Same operator, with user's physics region cover IDC machine room be put into same group, make method and system of the present invention be more prone to realize; Use dissemination system of the present invention, effectively can improve contents distribution speed and issue speed, in the very first time, what be new can be presented to user.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention CDN content dissemination system structural representation.
Embodiment
The embodiment of the present invention is according to IDC network coverage and network service quality, and all IDC machine rooms are divided into three layers or more, every layer can have multiple grouping.First according to the network service quality between user and the IDC machine room of serving this user, to the sequence of IDC machine room, the first distribution level (i.e. ground floor distribution IDC machine room) that the IDC machine room of more than 90% network service quality can be provided to be divided into this user's physics region; The second distribution level (second layer distribution IDC machine room) that the IDC machine room of 85% to 89.9% network service quality can be provided to be divided into this user's physics region; The 3rd distribution level (third layer distribution IDC machine room) that the IDC machine room of 80% to 84.9% network service quality can be provided to be divided into this user's physics region, does not consider lower than the IDC machine room of 80% network service quality.Then according to the rank of each IDC machine room in different user physics region, national IDC machine room is divided into three layers or more.Secondly according to IDC machine room operator and network coverage, belong to same operator by each distribution level, the IDC machine room that can cover same user's physics region is divided into same group.When contents distribution, contents distribution task will be issued to all IDC machine rooms, an IDC machine room is had to distribute in grouping, namely think that all IDC machine rooms of this grouping all complete, this grouping can provide content distribution service, and in this grouping simultaneously, other IDC machine rooms do not distributed will proceed contents distribution (providing content distribution service by the IDC machine room completing contents distribution); In distribution level, all packet distribution complete, then this distributing layer fraction distributes into.
The embodiment of the present invention does not consider the IDC machine room lower than 80% network service quality.
As shown in Figure 1, Changsha telecommunications IDC and Hengyang telecommunications IDC can cover whole Hu ' nan Telecommunication user, and network service quality is more than 90%, and these two machine rooms are divided into the first distribution level first and divide into groups by us.Foshan telecommunications IDC and Maoming telecommunications IDC can cover whole Guangzhou telecommunication user, and network service quality is more than 90%, and these two machine rooms are divided into the first distribution level second and divide into groups by us.Yueyang telecommunications IDC and Jingmen telecommunications IDC, can cover whole Hu ' nan Telecommunication user, and network service quality is 85% to 89.9%, and these two machine rooms are divided into the second distribution level first group by us.The rest may be inferred, forms the network structure that comprises distribution level, grouping.A task generates and needs to be sent to all IDC machine rooms (supposing it is 6).The now distribution queue of content can generate 6 contents distribution tasks, corresponding 6 machine rooms, 6 tasks perform simultaneously, but only need all groupings in the first distribution level all to distribute to put in place, namely Changsha telecommunications IDC or Hengyang telecommunications IDC one of them complete contents distribution task, and Foshan telecommunications IDC and Maoming telecommunications IDC one of them complete contents distribution task, namely think that this contents distribution task all completes in the first distribution level, first distribution level can release tasks content, and user can play.Content is announced while, other 4 tasks are still in execution, before executing all tasks, all Hu ' nan Telecommunication users provide service by the Changsha telecommunications IDC completed or Hengyang telecommunications IDC, and all Guangzhou telecommunication user provides service by completed Foshan telecommunications IDC and Maoming telecommunications IDC.In the process of other 4 tasks carryings, as long as have one to distribute level complete some contents distribution tasks, this distribution level just provides service at once, thus ensure that quick, many parts, the efficient distribution of CND content.
Claims (6)
1. a CDN content distribution method, it is characterized in that, the main implementation procedure of the method is as follows: according to the network service quality between user and the IDC machine room of serving this user, the grade of service of IDC machine room according to network service quality is sorted, the IDC machine room of serving different user physics region is divided into multiple distribution level from high to low according to the grade of service; Wherein the first distribution level obtains distributing contents from distribution source, and the second distribution level obtains distributing contents from the first distribution level, and the rest may be inferred; When certain contents distribution task of execution, this contents distribution task is issued to all IDC machine rooms of all distribution levels, if all IDC machine rooms of a certain distribution level have been distributed, then think that the contents distribution of this distribution level completes, content is distributed to user by this distribution level; In like manner complete the contents distribution of all the other distribution levels; When all distribution levels complete contents distribution, this contents distribution task completes.
2. CDN content distribution method according to claim 1, it is characterized in that, according to IDC machine room operator and network coverage, same operator will be belonged at least one distribution level and the IDC machine room that can cover same user's physics region is divided into same grouping; When certain contents distribution task of execution, when this contents distribution task is issued to the distribution level being provided with described grouping, if have at least an IDC machine room contents distribution to complete in certain grouping of this distribution level, then think that this packet content has been distributed, when all packet contents of this distribution level have been distributed, then think that the contents distribution of this distribution level completes, content is distributed to user by this distribution level; Meanwhile, completing IDC machine room in the grouping of contents distribution for all IDC machine rooms in this grouping provides content distribution service.
3. CDN content distribution method according to claim 1 and 2, is characterized in that, the IDC machine room of more than 90% network service quality can be provided to be divided into the first distribution level; The IDC machine room of 85% to 89.9% network service quality can be provided to be divided into the second distribution level; The IDC machine room of 80% to 84.9% network service quality can be provided to be divided into the 3rd distribution level.
4. a CDN content dissemination system, comprises distribution master control; Described distribution master control and multiple distribution source node communication; It is characterized in that, also comprise multiple distribution level; Each distribution level comprises the distribution node that multiple network service quality is in the same grade of service; All all distribution nodes distributed in level communicate each distribution source node with first; All distribution nodes that each distribution node and second in first distribution level is distributed in level communicate, and the rest may be inferred; Described multiple distribution level serves different user's physics regions, and the grade of service of a upper distribution level network service quality is higher than the grade of service of current distribution level network service quality; Described distribution node and IDC machine room.
5. CDN content dissemination system according to claim 4, is characterized in that, at least one distribution level comprises multiple grouping, comprises multiplely belonging to same operator and covering the distribution node of same user's physics region in each grouping; For the distribution level comprising multiple grouping, when this distribution level be not last distribution level time, its each grouping all with its on one distributes level, next distributes all nodes of level or all packet communications; When this distribution level is for last distribution level, its each grouping all with its on one distribute all nodes of level or all packet communications.
6. the CDN content dissemination system according to claim 4 or 5, is characterized in that, described distributing layer number of stages is three layers; First distribution level comprises the IDC machine room that can provide more than 90% network service quality; Second distribution level comprises the IDC machine room that can provide 85% to 89.9% network service quality; 3rd distribution level comprises the IDC machine room that can provide 80% to 84.9% network service quality.
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| CN106101195A (en) * | 2016-05-31 | 2016-11-09 | 北京奇艺世纪科技有限公司 | A kind of data distributing method and device |
| CN109005224A (en) * | 2018-07-26 | 2018-12-14 | 中国建设银行股份有限公司 | Data distributing method and device |
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| CN105187518B (en) | 2018-11-20 |
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