CN104702625B - Access request dispatching method and device in a kind of CDN network - Google Patents
Access request dispatching method and device in a kind of CDN network Download PDFInfo
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- CN104702625B CN104702625B CN201510148470.7A CN201510148470A CN104702625B CN 104702625 B CN104702625 B CN 104702625B CN 201510148470 A CN201510148470 A CN 201510148470A CN 104702625 B CN104702625 B CN 104702625B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
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Abstract
The embodiment of the invention discloses access request dispatching method and device in a kind of CDN network, all IDC nodes in the CDN network, at least two storage ranks are divided into advance according to storage capacity, the different other IDC nodes of storage level are respectively used to access request of the response for the data of different temperature ranks, access request dispatching method, may comprise steps of in a kind of CDN network：Receive the access request that user is directed to target data；The data message of each temperature rank obtained according to counting in advance, determines the temperature rank of the target data；Further determine that with the set with the other IDC nodes of the corresponding storage level of temperature rank；An IDC node for being used to respond the access request is selected from identified set.The technical solution provided using the embodiment of the present invention, it is possible to reduce the frequent updating of the data in IDC nodes, lifts the usage experience of user.
Description
Technical field
The present invention relates to Internet technical field, access request dispatching method and device in more particularly to a kind of CDN network.
Background technology
With the fast development of Internet technology, many large-scale websites tend to carry out web site contents using CDN technologies
Distribution.CDN, full name are Content Distribution Network, i.e. content distributing network.CDN network includes multiple IDC
(Internet Data Center, Internet data center) node and dispatch server, each IDC nodes include multiple data
Cache server, the data distributed by website are stored with data cache server.When user has the need for accessing website data
When asking, by the scheduling of dispatch server, it directly can communicate with the less IDC nodes of cost together and communicate, obtain institute
The data needed, alleviate network congestion problems, improve the accelerating website access of user, lift user experience.
A kind of existing access request dispatching method is that dispatch server receives the access request of user, according to user's need
The name feature for the data to be accessed, calculates the possibility storage location of data, that is, determines access request for responding user
IDC nodes, the access request of user is dispatched in identified IDC nodes.
In practical applications, the process of the access request of IDC nodes response user has two kinds determined by dispatch server
Situation, a kind of situation are that the data that user needs to access are stored with the node, the data directly can be returned to use
Family, another situation are not to be stored with user in the node to need the data that access, it is necessary to which the overall situation of Hui Yuan to website is deposited
Server is stored up, after obtaining the data that user's needs access, is locally preserving and is returning to user.That is, IDC nodes respond
The data that the access request of user returns to user are required for being locally stored.But because the storage capacity of IDC nodes is limited,
In its constantly the storage request process of response user, if the data wherein stored have reached the upper limit of its storage capacity, need
The data that it is stored are updated, that is, the data not being accessed for a long time are deleted, store new access request pair
The data answered.Pass through existing this dispatching method, it is more likely that by the access request tune of the relatively low data of many access frequencys
Spend in the less IDC nodes of storage capacity so that the data stored in this IDC nodes easily reach its storage capacity
The upper limit, causes stored data frequent updating, increases back source flux expense, and the process of Hui Yuan adds response user's request
Time delay, influence the usage experience of user.
The content of the invention
To solve the above problems, the embodiment of the invention discloses access request dispatching method and device in a kind of CDN network.
Technical solution is as follows：
Access request dispatching method in a kind of CDN network, all IDC nodes in the CDN network, according to storage capacity
At least two storage ranks are divided into advance, and the different other IDC nodes of storage level are respectively used to response and are directed to different temperature levels
The access request of other data, also, rank A and B are stored for any two, if the IDC nodes that storage rank is A are deposited
Energy storage power is less than the storage capacity for the IDC nodes that storage rank is B, then stores the access that rank is responded by the IDC nodes of A and ask
Corresponding data temperature is asked to be superior to the corresponding data temperature level of access request that storage rank is responded by the IDC nodes of B
Not；The described method includes：
Receive the access request that user is directed to target data；
The data message of each temperature rank obtained according to counting in advance, determines the temperature rank of the target data；
According to the temperature rank of the target data, determine have and the other IDC of the corresponding storage level of the temperature rank
The set of node；
According to the communication cost of each IDC nodes in user and identified set, one is selected from identified set
For responding the IDC nodes of the access request.
In a kind of embodiment of the present invention, the quantity of the data of each temperature rank is according to having and each temperature
The storage capacity of the other IDC nodes of the corresponding storage level of rank is determined.
In a kind of embodiment of the present invention, for the n-th temperature rank, which is determined by the following formula
The quantity of other data：The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter
Value, for characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；QnFor default second ginseng
Numerical value, the probability being accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank；MnIt is all
The average value of size of data.
In a kind of embodiment of the present invention, the access request carries the area information where user, described
According to the temperature rank of the target data, determine with the collection with the other IDC nodes of the corresponding storage level of temperature rank
Close, including：
According to the area information where the temperature rank of the target data and user, the IDC nodes in the region are being serviced
In, determine with the set with the other IDC nodes of the corresponding storage level of temperature rank.
In a kind of embodiment of the present invention, determined by following steps each in user and identified set
The communication cost of IDC nodes：
According to user and the range information of each IDC nodes in identified set, the network type of network is used to match
One or more of information in degree information, and identified set in the load state information of each IDC nodes, determine user with
The communication cost of each IDC nodes in identified set.
Access request dispatching device in a kind of CDN network, all IDC nodes in the CDN network, according to storage capacity
At least two storage ranks are divided into advance, and the different other IDC nodes of storage level are respectively used to response and are directed to different temperature levels
The access request of other data, also, rank A and B are stored for any two, if the IDC nodes that storage rank is A are deposited
Energy storage power is less than the storage capacity for the IDC nodes that storage rank is B, then stores the access that rank is responded by the IDC nodes of A and ask
Corresponding data temperature is asked to be superior to the corresponding data temperature level of access request that storage rank is responded by the IDC nodes of B
Not；Described device includes：
Access request receiving module, the access request of target data is directed to for receiving user；
Temperature rank determination module, for according to the data message for counting obtained each temperature rank in advance, determining institute
State the temperature rank of target data；
IDC node set determining modules, for the temperature rank according to the target data, determine have and the temperature level
The set of the not corresponding other IDC nodes of storage level；
IDC node selecting modules, for the communication cost according to each IDC nodes in user and identified set, from institute
An IDC node for being used to respond the access request is selected in definite set.
In a kind of embodiment of the present invention, the quantity of the data of each temperature rank is according to having and each temperature
The storage capacity of the other IDC nodes of the corresponding storage level of rank is determined.
In a kind of embodiment of the present invention, quantity determining module is further included：
The quantity determining module, for for the n-th temperature rank, determining the data of the temperature rank by the following formula
Quantity：The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter
Value, for characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；QnFor default second ginseng
Numerical value, the probability being accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank；MnIt is all
The average value of size of data.
In a kind of embodiment of the present invention, the IDC node sets determining module, is specifically used for：
According to the area information where the temperature rank of the target data and user, the IDC nodes in the region are being serviced
In, determine with the set with the other IDC nodes of the corresponding storage level of temperature rank.
In a kind of embodiment of the present invention, communication cost determining module is further included,
The communication cost determining module, for according to the range information of each IDC nodes in user and identified set,
The network type matching degree information of used network, and in identified set in the load state information of each IDC nodes
One or more of information, determine user and the communication cost of each IDC nodes in identified set.
The technical solution provided using the embodiment of the present invention, is in advance classified the IDC nodes in CDN network, deposits
It is smaller to store up the storage capacity of the low IDC nodes of rank, for responding the access request for the high data of temperature rank, because net
Data in standing have obvious hot spot concentration effect, and in certain period of time, the temperature rank of data is more stable, allow difference
Access request of the response for the data of corresponding temperature rank in the other IDC sets of node of storage level, it is possible to reduce number in IDC nodes
According to frequent updating, save back source flux expense, reduce the time delay of response user's request, lift the usage experience of user.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of implementing procedure figure of access request dispatching method in CDN network in the embodiment of the present invention；
Fig. 2 is another implementing procedure figure of access request dispatching method in CDN network in the embodiment of the present invention；
Fig. 3 is a kind of structure diagram of access request dispatching device in CDN network in the embodiment of the present invention.
Embodiment
The application environment of access request dispatching method carries out in a kind of CDN network provided first the embodiment of the present invention
Explanation.
In CDN network, all IDC nodes can be divided at least two in advance according to the storage capacity of each IDC nodes
A storage rank, such as, if the storage capacity of IDC nodes is higher than a certain predetermined threshold value, it is determined as the first storage level
Not, if the storage capacity of IDC nodes is less than a certain predetermined threshold value, it is determined as the second storage rank, certainly, to IDC
The other division of storage level of node can be carried out by operation personnel, storage capacity automatic decision that can also be by system according to IDC.
The different other IDC nodes of storage level are respectively used to access request of the response for the data of different temperature ranks, and
And rank A and B are stored for any two, if it is B that the storage capacity for the IDC nodes that storage rank is A, which is less than storage rank,
IDC nodes storage capacity, then store the corresponding data temperature rank of access request that is responded by the IDC nodes of A of rank
The corresponding data temperature rank of access request responded higher than storage rank by the IDC nodes of B.Store number of levels and temperature level
Shuo not be identical.
Under this application environment, access request dispatching method can in a kind of CDN network that the embodiment of the present invention is provided
To comprise the following steps：
Receive the access request that user is directed to target data；
The data message of each temperature rank obtained according to counting in advance, determines the temperature rank of the target data；
According to the temperature rank of the target data, determine have and the other IDC of the corresponding storage level of the temperature rank
The set of node；
According to the communication cost of each IDC nodes in user and identified set, one is selected from identified set
For responding the IDC nodes of the access request.
The executive agent of above-mentioned steps is the dispatch server in CDN network.
In practical applications, the frequency that different data are accessed within a period of time is different, corresponding different temperature, tool
There is different temperature ranks.Data are accessed by advance statistical history, the data message of each temperature rank, and root can be obtained
According to the information, it may be determined that the temperature rank of target data.Because the other IDC nodes of different storage levels are used to respond for difference
The access request of the data of temperature rank, so the temperature rank according to target data, it may be determined that have and the temperature rank
The set of the corresponding other IDC nodes of storage level.That is, the IDC nodes in set have consistent storage rank, should
Storage rank is corresponding with the temperature rank, these IDC nodes can be used in access request of the response for target data.According to
User and the communication cost of each IDC nodes in set, select an IDC node for being used to respond the access request from set,
So as to complete the scheduling of access request.
The technical solution provided using the embodiment of the present invention, is in advance classified the IDC nodes in CDN network, deposits
It is smaller to store up the storage capacity of the low IDC nodes of rank, for responding the access request for the high data of temperature rank, because net
Data in standing have obvious hot spot concentration effect, and in certain period of time, the temperature rank of data is more stable, allow difference
Access request of the response for the data of corresponding temperature rank in the other IDC sets of node of storage level, it is possible to reduce number in IDC nodes
According to frequent updating, save back source flux expense, reduce the time delay of response user's request, lift the usage experience of user.
In order to make those skilled in the art more fully understand the technical solution in the embodiment of the present invention, below in conjunction with this hair
Attached drawing in bright embodiment, is clearly and completely described the technical solution in the embodiment of the present invention, it is clear that described
Embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area
Those of ordinary skill's all other embodiments obtained without making creative work, belong to protection of the present invention
Scope.
It is shown in Figure 1, a kind of implementation of access request dispatching method in the CDN network provided by the embodiment of the present invention
Flow chart, this method may comprise steps of：
S110：Receive the access request that user is directed to target data；
When user needs to access the data of certain website, pin can be sent by the uniform resource position mark URL of the website
To the access request of target data, dispatch server receives the access request, determines the target data accessed required for user, after
The continuous operation for performing step S120.
S120：The data message of each temperature rank obtained according to counting in advance, determines the temperature of the target data
Rank；
As it was previously stated, the storage rank of the IDC nodes in CDN network has predetermined that, the storage level of an IDC node
It is not high, represent that the storage capacity of the IDC nodes is big, opposite, the storage rank of an IDC node is low, represents the IDC nodes
Storage capacity is small.The different other IDC nodes of storage level are respectively used to access request of the response for the data of different temperature ranks,
It is consistent with temperature number of levels to store number of levels, the how many storage ranks by IDC node divisions, a with regard to how many accordingly in advance
Temperature rank.
The corresponding data temperature rank of access request that the high IDC nodes of storage rank are responded is low, that is to say, that IDC
The storage capacity of node is bigger, and the corresponding data temperature rank of the access request that can be responded is lower.It is higher for temperature rank
The quantity of data can do certain limitation, avoid the access request by the excessive data low for temperature rank from being dispatched to
In the less IDC nodes of storage capacity, in a kind of embodiment of the present invention, the quantity of the data of each temperature rank
It can be determined according to the storage capacity with the other IDC nodes of storage level corresponding with each temperature rank, specifically, being directed to
N-th temperature rank, can determine the quantity of the data of the temperature rank by the following formula：
The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter
Value, can be empirical value for characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；Qn
To preset the second parameter value, it is accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank general
Rate, can be empirical value；MnFor the average value of all size of data.
Specifically, default first parameter value can be set based on experience value, 90% is such as arranged to, presets the second parameter
Value can be set based on experience value, such as be arranged to 30%, the average value of all size of data can according to actual conditions into
Row is set, and such as the video data of video website, mean size can be set to 30MB.Default first parameter of different temperature ranks
Value, default second parameter value, the average value of size of data can be arranged to identical value or different value according to actual conditions.
In practical applications, dispatch server can include scheduling unit and statistic unit, to the access request of user
Scheduling can be performed by scheduling unit, history accessing request information is stored with the dispatching log of scheduling unit, to each heat
Spending the statistics of the data message of rank can be performed by statistic unit, and statistic unit can be with the scheduling day of real-time collecting scheduling unit
Will, and the data targeted to the history access request in dispatching log count, and can obtain the number of each temperature rank
It is believed that breath, and the information is pushed into scheduling unit.
Statistic unit can have two ways for the statistics of the data message of each temperature rank：
First way is, statistic unit was analyzed the history access request in the cycle every certain cycle,
According to the visit capacity of the targeted data of history access request in the cycle, the temperature of data is calculated, so as to according to temperature
Order from high to low, determines the temperature rank of each data.Specifically definite method can be according to predetermined each heat
The data proportion or quantity for spending rank are determined.
For convenience of understanding, above-mentioned specifically definite method is illustrated respectively.
Example 1, the temperature rank of each data is determined according to the data proportion of predetermined each temperature rank, it is assumed that
Determine to share four temperature ranks according to storage number of levels, after obtaining the temperature of each data, according to the order of temperature from high to low,
The data for determining preceding 5% temperature are high dsc data, it is determined as the first temperature rank, the data for determining 5%~15% temperature are
Secondary dsc data, it is determined as the second temperature rank, the data for determining 15%~30% temperature are general data, it is determined as the 3rd temperature level
Not, other data are unexpected winner data, it is determined as the 4th temperature rank.
Example 2, the temperature rank of each data is determined according to the quantity of the data of identified each temperature rank, it is also assumed that
Determine to share four temperature ranks according to storage number of levels, after obtaining the temperature of each data, according to the order of temperature from high to low,
Determine that temperature in preceding 10,000 data is high dsc data, it is determined as the first temperature rank, determines preceding 10,000~100,000 data to be time hot
Data, it is determined as the second temperature rank, the data for determining preceding 100,000~1,000,000 are general data, it is determined as the 3rd temperature rank, other
Data are unexpected winner data, it is determined as the 4th temperature rank.
The second way is that statistic unit analyzes the history access request in each cycle in different cycles, root
According to the visit capacity of the targeted data of history access request in each cycle, calculate the temperature of data, so as to according to temperature from
High to Low order, determines the temperature rank of each data.Specifically definite method can be according to predetermined each temperature
The data proportion or quantity of rank are determined.
For convenience of understanding, this mode is illustrated.
Also assuming that and determine to share four temperature ranks according to storage rank, the first temperature rank corresponds to high dsc data, the
Two temperature ranks correspond to time dsc data, and the 3rd temperature rank corresponds to general data, and the 4th temperature rank corresponds to unexpected winner data.
The temperature of every five minutes statistics data within first five minute, according to temperature in descending order, by preset ratio or
The temperature rank of the data of person's quantity is set to the first temperature rank, and the temperature rank of preceding 5% data such as is set to the first temperature
Rank, or the temperature rank of preceding 10,000 data is set to the first temperature rank；
Count the temperature of the interior data when previous small per hour, according to temperature in descending order, by preset ratio or
The temperature rank of the data of quantity is set to the second temperature rank, and the temperature rank of preceding 10% data such as is set to the second temperature level
Not, or by the temperature rank of preceding 100,000 data it is set to the second temperature rank；
Statistics is when the temperature of data in the previous day daily, according to temperature in descending order, by preset ratio or quantity
The temperature ranks of data be set to the 3rd temperature rank, the temperature rank of preceding 20% data is such as set to the 3rd temperature rank,
Or the temperature rank of preceding 1,000,000 data is set to the 3rd temperature rank；
The temperature rank of other data is set to the 4th temperature rank.
Wherein, if certain data there are multiple temperature ranks in different measurement periods, it is subject to highest temperature rank.
It is understood that being counted using the shorter cycle to the data message of high temperature rank, can obtain in time
To high fever data message.
Certainly, both the above mode is not limited to for the statistics of the data message of each temperature rank, is also not necessarily limited to the above
The described ratio of citing and numerical value, can be adjusted and count according to actual needs.
Statistic unit complete statistical work after, you can statistical result is pushed to scheduling unit, with by scheduling unit according to
The data message of each temperature rank, determines the temperature rank of target data.It is understood that statistic unit is accessed according to history
Request carries out the statistics of the data message of each temperature rank, may not be the total data of website, and some data may be because
New reach the standard grade reason or other reasons, are never accessed by the user, if receiving the access request for these data, and
There is no the information of these data in the data message for each temperature rank being previously obtained, can be directly using these data as unexpected winner
Data are handled, i.e., the temperature rank of these data is set to minimum temperature rank.In addition, for minimum temperature rank
Data message can not keep a record, to save the memory space of dispatch server, when receiving the access request for certain data
When, if the data are not belonging to the data of higher thermal degree rank, the temperature rank of the data can be set to minimum temperature level
Not.
S130：According to the temperature rank of the target data, determine have and the corresponding storage rank of the temperature rank
IDC nodes set；
The temperature rank of target data is determined in step S120, can further determine to have opposite with the temperature rank
The set for the other IDC nodes of storage level answered.For example the temperature rank of definite target data is the first temperature rank, with
The corresponding storage rank of one temperature rank is the first storage rank, judges which IDC node is the first storage level in CDN network
Not, the set with the other IDC nodes of the first storage level is determined.
In practical applications, if placement of the CDN network for IDC nodes is placed according to region, can incite somebody to action
IDC nodes in each region carry out the other division of storage level respectively, are taken when in the access request for receiving user, access request
During with area information where user, tool in the IDC nodes for servicing the region, can be determined according to the region where user
There is the set with the other IDC nodes of the corresponding storage level of temperature rank of target data.So processing can reduce IDC nodes
To the response delay of user access request.
S140：According to the communication cost of each IDC nodes in user and identified set, selected from identified set
One IDC node for being used to respond the access request.
It is understood that the distance of user and IDC nodes, the network type of used network, or IDC nodes
The factors such as load condition, may all influence the usage experience of user, so in a kind of embodiment of the present invention, can be with
According to the range information of each IDC nodes in user and identified set, the network type matching degree information of network is used,
And one or more of information in identified set in the load state information of each IDC nodes, determine user with it is identified
The communication cost of each IDC nodes in set.
Certainly, IDC nodes include multiple data cache servers, when visit of some the definite IDC node for responding user
, can be further according to certain algorithm, such as hash algorithm, by information such as data names, from the IDC nodes when asking request
A data cache server is selected, and the IP address of the data cache server is returned into user, establishes user and data
The communication connection of cache server.
The flow of access request dispatching method carries out whole description, ginseng in the CDN network provided the embodiment of the present invention
As shown in Figure 2：
Assuming that the temperature rank of high dsc data is the first temperature rank, the temperature rank compared with dsc data is the second temperature level
Not, the temperature rank of general data is the 3rd temperature rank, and the temperature rank of unexpected winner data is the 4th temperature rank.
Step S201, receives the access request that user is directed to target data.
Step S202, determines the temperature rank of target data：
If target data is high dsc data, step S203 is gone to, and then go to step S207；
If target data is compared with dsc data, step S204 is gone to, and then go to step S208；
If target data is general data, step S205 is gone to, and then goes to step S209；
If target data is unexpected winner data, step S206 is gone to, and then go to step S210.
S211, determines data cache server from corresponding IDC nodes.
Wherein, HC IDC shown in Fig. 2 represents the corresponding other IDC nodes of first storage level of the first temperature rank, TC
IDC represents the corresponding other IDC nodes of second storage level of the second temperature rank, and LC IDC represent the 3rd temperature rank corresponding the
The other IDC nodes of three storage levels, GC IDC represent the corresponding other IDC nodes of 4th storage level of the 4th temperature rank.
The technical solution provided using the embodiment of the present invention, is in advance classified the IDC nodes in CDN network, deposits
It is smaller to store up the storage capacity of the low IDC nodes of rank, for responding the access request for the high data of temperature rank, because net
Data in standing have obvious hot spot concentration effect, and in certain period of time, the temperature rank of data is more stable, allow difference
Access request of the response for the data of corresponding temperature rank in the other IDC sets of node of storage level, it is possible to reduce number in IDC nodes
According to frequent updating, save back source flux expense, reduce the time delay of response user's request, lift the usage experience of user.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides access request in a kind of CDN network and dispatches
Device, the application scenarios of the device are：All IDC nodes in the CDN network, according to storage capacity by advance be divided into
Few two storages rank, the different other IDC nodes of storage level are respectively used to access of the response for the data of different temperature ranks
Request, also, rank A and B are stored for any two, if the storage capacity for the IDC nodes that storage rank is A is less than storage
Rank is the storage capacity of the IDC nodes of B, then stores the corresponding data heat of access request that rank is responded by the IDC nodes of A
Degree is superior to the corresponding data temperature rank of access request that storage rank is responded by the IDC nodes of B.
Shown in Figure 3, which can include with lower module：
Access request receiving module 310, the access request of target data is directed to for receiving user；
Temperature rank determination module 320, for according to the data message for counting obtained each temperature rank in advance, determining
The temperature rank of the target data；
IDC node sets determining module 330, for the temperature rank according to the target data, determines have and the heat
Spend the set of the other IDC nodes of the corresponding storage level of rank；
IDC nodes selecting module 340, for the communication cost according to each IDC nodes in user and identified set, from
An IDC node for being used to respond the access request is selected in identified set.
In a kind of embodiment of the present invention, the quantity of the data of each temperature rank is according to having and each temperature
The storage capacity of the other IDC nodes of the corresponding storage level of rank is determined.
In a kind of embodiment of the present invention, quantity determining module can also be included：
The quantity determining module, for for the n-th temperature rank, determining the data of the temperature rank by the following formula
Quantity：The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter
Value, for characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；QnFor default second ginseng
Numerical value, the probability being accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank；MnIt is all
The average value of size of data.
In a kind of embodiment of the present invention, the IDC node sets determining module 330, is specifically used for：
According to the area information where the temperature rank of the target data and user, the IDC nodes in the region are being serviced
In, determine with the set with the other IDC nodes of the corresponding storage level of temperature rank.
In a kind of embodiment of the present invention, communication cost determining module can also be included：
The communication cost determining module, for according to the range information of each IDC nodes in user and identified set,
The network type matching degree information of used network, and in identified set in the load state information of each IDC nodes
One or more of information, determine user and the communication cost of each IDC nodes in identified set.
The device provided using the embodiment of the present invention, is in advance classified the IDC nodes in CDN network, storage level
The storage capacity of not low IDC nodes is smaller, for responding the access request for the high data of temperature rank, because in website
Data there is obvious hot spot concentration effect, in certain period of time, the temperature rank of data is more stable, allows different storages
Access request of the response for the data of corresponding temperature rank in the IDC sets of node of rank, it is possible to reduce data in IDC nodes
Frequent updating, saves back source flux expense, reduces the time delay of response user's request, lifts the usage experience of user.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there are other identical element in process, method, article or equipment including the key element.
Each embodiment in this specification is described using relevant mode, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for device
For applying example, since it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Can one of ordinary skill in the art will appreciate that realizing that all or part of step in above method embodiment is
To instruct relevant hardware to complete by program, the program can be stored in computer read/write memory medium,
The storage medium designated herein obtained, such as：ROM/RAM, magnetic disc, CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. access request dispatching method in a kind of CDN network, it is characterised in that all IDC nodes in the CDN network, are pressed
At least two storage ranks are divided into advance according to storage capacity, and the different other IDC nodes of storage level are respectively used to response and are directed to
The access request of the data of different temperature ranks, also, rank A and B are stored for any two, if storage rank is A's
The storage capacity of IDC nodes is less than the storage capacity for the IDC nodes that storage rank is B, then stores IDC node institute of the rank for A
The corresponding data temperature of access request of response is superior to the access request that storage rank is responded by the IDC nodes of B and corresponds to
Data temperature rank；The described method includes：
Receive the access request that user is directed to target data；
The data message of each temperature rank obtained according to counting in advance, determines the temperature rank of the target data；
According to the temperature rank of the target data, determine have and the other IDC nodes of the corresponding storage level of temperature rank
Set；
According to the communication cost of each IDC nodes in user and identified set, from identified set selecting one is used for
Respond the IDC nodes of the access request.
2. according to the method described in claim 1, it is characterized in that, the quantity of the data of each temperature rank according to have with it is each
The storage capacity of the other IDC nodes of the corresponding storage level of temperature rank is determined.
3. according to the method described in claim 2, it is characterized in that, be directed to the n-th temperature rank, which is determined by the following formula
Spend the quantity of the data of rank：The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter value,
For characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；QnTo preset the second parameter
Value, the probability being accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank；MnFor all numbers
According to the average value of size.
4. according to the method described in claim 1, it is characterized in that, the access request carry user where area information,
The temperature rank according to the target data, determines have and the other IDC nodes of the corresponding storage level of temperature rank
Set, including：
According to the area information where the temperature rank of the target data and user, in the IDC nodes for servicing the region, really
The fixed set with the other IDC nodes of the corresponding storage level of temperature rank.
5. method according to any one of claims 1 to 4, it is characterised in that determine user with institute really by following steps
The communication cost of each IDC nodes in fixed set：
According to the range information of each IDC nodes in user and identified set, use the network type matching degree of network
One or more of information in information, and identified set in the load state information of each IDC nodes, determine user with institute really
The communication cost of each IDC nodes in fixed set.
6. access request dispatching device in a kind of CDN network, it is characterised in that all IDC nodes in the CDN network, are pressed
At least two storage ranks are divided into advance according to storage capacity, and the different other IDC nodes of storage level are respectively used to response and are directed to
The access request of the data of different temperature ranks, also, rank A and B are stored for any two, if storage rank is A's
The storage capacity of IDC nodes is less than the storage capacity for the IDC nodes that storage rank is B, then stores IDC node institute of the rank for A
The corresponding data temperature of access request of response is superior to the access request that storage rank is responded by the IDC nodes of B and corresponds to
Data temperature rank；Described device includes：
Access request receiving module, the access request of target data is directed to for receiving user；
Temperature rank determination module, for according to the data message for counting obtained each temperature rank in advance, determining the mesh
Mark the temperature rank of data；
IDC node set determining modules, for the temperature rank according to the target data, determine have and the temperature rank phase
The set of the corresponding other IDC nodes of storage level；
IDC node selecting modules, for the communication cost according to each IDC nodes in user and identified set, from determining
Set in selection one be used to respond the IDC nodes of the access request.
7. device according to claim 6, it is characterised in that the quantity of the data of each temperature rank according to have with it is each
The storage capacity of the other IDC nodes of the corresponding storage level of temperature rank is determined.
8. device according to claim 7, it is characterised in that further include quantity determining module：
The quantity determining module, for for the n-th temperature rank, determining the number of the data of the temperature rank by the following formula
Amount：The quantity of the data of the temperature rank is equal to Cn*Pn*Qn/Mn；
Wherein, CnFor the memory capacity of the other IDC nodes of the corresponding storage level of the n-th temperature rank；PnTo preset the first parameter value,
For characterizing the maximum capacity utilization rate of the corresponding other IDC nodes of storage level of the n-th temperature rank；QnTo preset the second parameter
Value, the probability being accessed for characterize data in the other IDC nodes of the corresponding storage level of the n-th temperature rank；MnFor all numbers
According to the average value of size.
9. device according to claim 6, it is characterised in that the IDC node sets determining module, is specifically used for：
According to the area information where the temperature rank of the target data and user, in the IDC nodes for servicing the region, really
The fixed set with the other IDC nodes of the corresponding storage level of temperature rank.
10. according to claim 6 to 9 any one of them device, it is characterised in that communication cost determining module is further included,
The communication cost determining module, for according to user and the range information of each IDC nodes in identified set, made
With the network type matching degree information of network, and one kind in identified set in the load state information of each IDC nodes
Or several information, determine user and the communication cost of each IDC nodes in identified set.
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| CN108347465B (en) * | 2017-01-23 | 2021-02-02 | 阿里巴巴集团控股有限公司 | Method and device for selecting network data center |
| CN107370811B (en) * | 2017-07-14 | 2020-11-27 | 北京知道创宇信息技术股份有限公司 | Resource distribution method of CDN (content delivery network), computing equipment and readable storage medium |
| CN107770283B (en) * | 2017-11-08 | 2020-10-23 | 北京奇艺世纪科技有限公司 | Method, device and system for controlling file downloading |
| CN108234632A (en) * | 2017-12-29 | 2018-06-29 | 北京奇虎科技有限公司 | A kind of data distributing method and device of content distributing network CDN |
| CN108804351B (en) * | 2018-05-30 | 2021-10-29 | 郑州云海信息技术有限公司 | Cache replacement method and device |
| CN108810144A (en) * | 2018-06-14 | 2018-11-13 | 北京中飞艾维航空科技有限公司 | A kind of data transmission method, server and storage medium |
| CN109144791B (en) * | 2018-09-30 | 2020-12-22 | 北京金山云网络技术有限公司 | Data unloading method and device and data management server |
| CN109981778B (en) * | 2019-03-27 | 2022-09-02 | 百度在线网络技术（北京）有限公司 | Method, device, equipment and storage medium for realizing service of content distribution network |
| CN111277860B (en) * | 2020-01-23 | 2021-04-06 | 北京邮电大学 | Method, device and equipment for caching video in mobile edge network and readable medium |
| CN113296924B (en) * | 2020-04-28 | 2022-07-22 | 阿里巴巴集团控股有限公司 | Content distribution method, device, system and storage medium |
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| CN115250295A (en) * | 2021-04-26 | 2022-10-28 | 北京字跳网络技术有限公司 | Media content processing method, device, equipment and storage medium |
| CN114697683A (en) * | 2022-03-25 | 2022-07-01 | 腾讯音乐娱乐科技（深圳）有限公司 | Intelligent scheduling method, equipment and computer program product for streaming media file |
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