CN109347947A - A kind of method of load balancing, name server and cluster nas server - Google Patents
A kind of method of load balancing, name server and cluster nas server Download PDFInfo
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- CN109347947A CN109347947A CN201811197346.XA CN201811197346A CN109347947A CN 109347947 A CN109347947 A CN 109347947A CN 201811197346 A CN201811197346 A CN 201811197346A CN 109347947 A CN109347947 A CN 109347947A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5083—Techniques for rebalancing the load in a distributed system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
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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
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The embodiment of the present application discloses a kind of method of load balancing, this method comprises: domain name server (DNS) periodically obtains IP data from cluster network additional storage nas server, which is the data that node externally services, and externally service indicates to provide file service；DNS determines target ip address according to IP data；DNS returns to target ip address to client, which accesses file system for client.The problem of the embodiment of the present application also provides corresponding name server and cluster nas server, efficiently solves load imbalance, allows client normally to access file system, and will not cause the wasting of resources of cluster nas server.
Description
Technical field
This application involves fields of communication technology, and in particular to a kind of method of load balancing, name server and cluster nas
Server.
Background technique
Cluster network additional storage (network attached storage, nas) server is a kind of special dedicated
Data storage server, including memory device and embedded systems software provide cross-platform file-sharing function, allow user in net
Storing data on network, and manage and handle all data on network concentratedly.Name server (domain name
System, DNS) refer to the domain name and corresponding IP address for preserving All hosts in the network that client needs to access, and have
There is the server that domain name is converted to IP address function.The process of domain name mapping is exactly that domain name is mapped as to the process of IP address.
When user uses the file service of cluster nas server, domain name mode carry file system, each domain are generally used
Name can correspond to one group of IP address in name server, and when user uses domain name carry file system, DNS can by one group of IP
An IP in location returns to the client of file system, and client will use this IP carry file system.DNS is right at present
It is all to be selected by the way of poll pattern to multiple IP address after parsing after each domain name mapping, and meeting
IP address is successively returned into client according to the sequence in the poll pattern, so that client can only select to return using DNS
IP address access file system.
The case where this mode will appear load imbalance, be easy to cause a certain node load excessively high, other nodes are idle
The case where, so that client access performance when accessing file system can decline and be easy to cause the resource of cluster nas server
Waste.
Summary of the invention
The embodiment of the present application provides method, name server and the cluster nas server of a kind of load balancing, effectively
It solves the problems, such as load imbalance, client is allowed normally to access file system, and cluster nas will not be caused to service
The wasting of resources of device.
In view of this, the embodiment of the present application provides following scheme:
The application first aspect provides a kind of method of load balancing, relates generally to domain name server (DNS), cluster nas clothes
Business device, and this method can be applied in different service modes, and mentioned service mode includes flow rate mode, connection
Digital modeling or aggregative model.This method may include: that domain name server (DNS) receives the domain name request that client is sent, domain name
Request carries domain-name information；DNS periodically obtains IP number according to domain name request from cluster network additional storage nas server
According to the IP data are the data that node externally services, and the external service indicates to provide file service；DNS is true according to IP data
Set the goal IP address；DNS returns to target ip address to client, which accesses file system for client.
Optionally, with reference to the above first aspect, in the first possible implementation, DNS determines mesh according to IP data
IP address is marked, may include: the numerical value that DNS calculates the corresponding IP data of every kind of service mode；The DNS arranges the numerical value
Sequence determines the minimum value in numerical value；DNS determines that IP address corresponding to minimum value is target ip address.
Optionally, the first possible implementation with reference to the above first aspect, in the second possible implementation,
Service mode may include aggregative model, and the corresponding IP data of the aggregative model may include flow information, connection number, CPU negative
Information carrying breath or memory load information, determine the minimum value in numerical value, may include: DNS be flow information, connection number, cpu load
Weight is respectively set in information or memory load information, and the sum of percentage of the weight is 1；DNS according to weight calculation flow information,
The synthesis numerical value of connection number, cpu load information or memory load information；Comprehensive numerical value is ranked up by DNS, and determines that this is comprehensive
Close the minimum value in numerical value.
Optionally, the first possible implementation with reference to the above first aspect, in the third possible implementation,
Service mode can also include flow rate mode or connection digital modeling, and the corresponding IP data of the flow rate mode may include flow letter
Breath, the corresponding IP data of the connection digital modeling may include connection number, which is expressed as accessing file system by IP address
The quantity of the client of system.
Optionally, with reference to the above first aspect, first aspect the first to the third possible implementation, at the 4th kind
In possible implementation, domain name server (DNS) periodically obtains IP data from cluster nas server, may include: DNS solution
The domain-name information carried in analysis domain name request, to obtain the corresponding IP address of the domain-name information；DNS periodically takes to cluster nas
Business device sends the command messages for carrying IP address, which is used for the corresponding IP data of cluster nas collection of server；
DNS receives the feedback request that cluster nas server is sent, which carries the corresponding IP data of IP address.
The application second aspect provides a kind of method of load balancing, relates generally to domain name server (DNS), cluster nas clothes
Business device, this method may include: that cluster nas server receives the command messages that domain name server (DNS) is sent, which takes
With IP address；Cluster nas server acquires corresponding IP data according to IP address；Cluster nas server sends anti-to the DNS
Feedback request, the feedback request carry the corresponding IP data of IP address.
The application third aspect provides a kind of name server, which, which has, realizes above-mentioned first aspect or the
On the one hand the function of the method for any one possible implementation.The function can also pass through hardware by hardware realization
Execute corresponding software realization.The hardware or software include one or more units corresponding with above-mentioned function, module or son
Module.
The application fourth aspect provides a kind of cluster nas server, and cluster nas server, which has, realizes above-mentioned second party
The function of the method in face.The function can also execute corresponding software realization by hardware realization by hardware.The hardware
Or software includes one or more units corresponding with above-mentioned function, module or submodule.
The 5th aspect of the application provides a kind of name server, comprising: processor and memory；The memory is for storing
Program instruction, when name server operation, which executes the program instruction of memory storage, so that the domain name
The method that server executes the load balancing such as any one possible implementation of above-mentioned first aspect or first aspect.
The 6th aspect of the application provides a kind of computer readable storage medium, is stored in the computer readable storage medium
Instruction, when run on a computer, allowing computer to execute above-mentioned first aspect or first aspect, any one can
The method for being able to achieve the load balancing of mode.
Wherein, technology brought by any implementation in terms of the third aspect, fourth aspect, the 5th, in the 6th aspect
Effect can be found in technical effect brought by different implementations in first aspect, and details are not described herein again.
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
Domain name server (DNS) periodically obtains IP data, determines that minimum value is corresponding by calculating the numerical value of the IP data
IP address be target ip address, and send target ip address to client, allow client according to the Target IP
Location accesses file system.It efficiently solves the problems, such as load imbalance, client is allowed normally to access file system, and
And cluster nas server system resources will not be caused to waste.
Detailed description of the invention
Fig. 1 is the block schematic illustration of load balancing in the embodiment of the present application；
Fig. 2 is one embodiment schematic diagram of the method for load balancing provided by the embodiments of the present application；
Fig. 3 is another embodiment schematic diagram of the method for load balancing provided by the embodiments of the present application；
Fig. 4 is another embodiment schematic diagram of the method for load balancing provided by the embodiments of the present application；
Fig. 5 is another embodiment schematic diagram of the method for load balancing provided by the embodiments of the present application；
Fig. 6 is one embodiment schematic diagram of name server provided by the embodiments of the present application；
Fig. 7 is one embodiment schematic diagram of cluster nas server provided by the embodiments of the present application；
Fig. 8 is one schematic diagram of hardware configuration of the communication device in the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.
The embodiment of the present application provides a kind of method of load balancing.The embodiment of the present application also provides corresponding name server
And cluster nas server, the problem of efficiently solving load imbalance, allow client normally to access file system,
And the wasting of resources of cluster nas server will not be caused.
The description and claims of this application and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.Those of ordinary skill in the art are it is found that with the differentiation of figure Computational frame and new
The appearance of application scenarios, technical solution provided in an embodiment of the present invention are equally applicable for similar technical problem.
Fig. 1 is the block schematic illustration of load balancing in the embodiment of the present application.
Fig. 1 includes name server, cluster nas server and client.Cluster nas server is a kind of exclusive data
Storage server allows user's storing data on network, and manages and handle all data on network concentratedly.Domain name clothes
Business device refers to the domain name and corresponding IP address for preserving All hosts in the network that client needs to access, and has domain name
Resolve to the server of IP address function.
Although domain name is remembered convenient for people, IP address can only be identified mutually between server, if client wants are wanted
Certain file system are accessed, existing mode can only parse domain name by name server, and after parsing successively
Poll simultaneously chooses IP address and is sent to client, whether reaches highest shape but regardless of the load capacity in these IP address
State.
As shown in Figure 1, that is, client is needed through the domain as the domain name A that user needs to access by client input
When name A carry file system, the carry order of domain name A can be issued to name server, name server can at this time
To parse the domain name A of client carry file system, after obtaining this N number of IP address, name server can with these IP
Location is that parameter periodically obtains the corresponding IP data of these IP address from the cluster nas server of storage and management data, at this time
Name server determines the smallest IP address of data from these IP data, so that the smallest IP address of the data is sent to
Client, the IP address that client can be returned according to name server accesses file system, to reach load balancing
Purpose.
The number of N number of IP address mentioned by above-mentioned Fig. 1, specifically without limitation.
Figure 1 above is the introduction to the block schematic illustration of this programme, in order to make it easy to understand, the embodiment of the present application is described below
The method of provided load balancing.
Fig. 2 is one embodiment schematic diagram of the method for load balancing provided by the embodiments of the present application.
As shown in Fig. 2, one embodiment of the method for load balancing provided by the embodiments of the present application includes:
201, domain name server (DNS) receives the domain name request that client is sent.
In the present embodiment, domain name request carries domain-name information, which such as can be register name, domain name kind
Type etc., specifically without limitation.
202, DNS is requested according to domain name, is periodically disappeared to the order that the transmission of cluster nas server carries IP address
Breath.
It, can be by cluster nas since domain name server (DNS) needs periodically to obtain IP data in the present embodiment
Server sends a command messages, and mentioned command messages carry IP address, therefore cluster nas server is receiving
After the command messages, corresponding IP data can be acquired according to IP address.In practical applications, which can also carry
Other parameters, specifically without limitation；Additionally may exist the other similar message in command messages, does not limit herein specifically
It is fixed；Mentioned was only referred in certain a period of time, specifically without limitation.
203, cluster nas server acquires corresponding IP data according to IP address.
In the present embodiment, each IP address corresponds to one group of IP data, this group of IP data may include flow information, connect
Number, cpu load information or memory load information are connect, in practical applications, there may also be other IP data, specifically herein not
It limits.
204, cluster nas server sends feedback request to DNS.
In the present embodiment, if cluster nas server is after acquiring corresponding IP data according to IP address, so that it may to DNS
Feedback request is sent, mentioned feedback request carries collected IP data.Therefore DNS can be periodically received cluster
The feedback request that nas server is sent, to get IP data.
205, DNS determines target ip address according to IP data.
In the present embodiment, if DNS after getting IP data, can determine mesh by calculating the sizes values of IP data
IP address is marked, which is to indicate that the value of IP data is in address corresponding when the state of a minimum value；In reality
In the application of border, the mode of calculating can be carried out according to different service modes, specifically without limitation.
206, DNS returns to target ip address to client.
In the present embodiment, which is to indicate that the value of IP data is in corresponding when the state of a minimum value
Address, therefore client can access file system according to the target ip address, effectively solve the problems, such as load imbalance.
In the present embodiment, domain name server (DNS) periodically receives the feedback request of cluster nas server transmission, to obtain
The corresponding IP data of IP address, determine target ip address, and send target ip address to client, so that client can be with
File system is accessed according to the target ip address.It efficiently solves the problems, such as load imbalance, allows client normal
File system is accessed, and the wasting of resources of cluster nas server will not be caused.
In the technical scheme, since it is determined that target ip address can be carried out according to different service modes, every one kind
Service mode can determine corresponding minimum value using different calculation methods.
Service mode is divided below, the side of load balancing provided by the embodiments of the present application is described in detail respectively
Case.
1, service mode includes aggregative model；
2, service mode includes flow rate mode；
3, service mode includes connection digital modeling.
It should be noted that 3 above-mentioned schemes are provided to carry out service mode the division of mode type, for not
With mode type, corresponding IP data determine that the corresponding minimum value of service mode, purpose are all using different calculation methods
In order to adapt to different scenes.
1, service mode includes aggregative model
The present embodiment is only illustrated so that service mode includes aggregative model as an example.Fig. 3 is provided by the embodiments of the present application
Another embodiment schematic diagram of the method for load balancing.
As shown in figure 3, another embodiment of the method for load balancing provided by the embodiments of the present application includes:
301, domain name server (DNS) receives the domain name request that client is sent.
In the present embodiment, domain name request carries domain-name information, which such as can be register name, domain name kind
Type etc., specifically without limitation.
302, the domain-name information carried in dns resolution domain name request.
In the present embodiment, each domain name can correspond to multiple IP address, and IP address can only be identified between server, because
This only after name server parses domain-name information, can just know the corresponding IP address of the domain name.
It should be noted that the mode of parsing domain name can be character string being converted into number, and establish on this basis
Corresponding data structure, to obtain the corresponding IP address of domain name；Specific analysis mode is without limitation.
After IP address is obtained IP data to cluster nas server as parameter by domain name server (DNS), to these IP numbers
According to the working process of progress different service modes, and nearest n configurable IP data are saved, to choose in this n IP data
Recent data are ranked up, when client carries out access next time, based on the sequence crossed through processing
Data as parsing foundation, just no longer need to parse, thus can be effectively reduced parsing domain name time.
303, DNS periodically sends the command messages for carrying IP address to cluster network service device.
It, can be by cluster nas since domain name server (DNS) needs periodically to obtain IP data in the present embodiment
Server sends a command messages, and mentioned command messages carry IP address, therefore cluster nas server is receiving
After the command messages, corresponding IP data can be acquired according to IP address.In practical applications, which can also carry
Other parameters, specifically without limitation；Additionally may exist the other similar message in command messages, does not limit herein specifically
It is fixed；Mentioned was only referred in certain a period of time, specifically without limitation.
304, cluster nas server acquires corresponding IP data according to IP address.
In the present embodiment, each IP address corresponds to one group of IP data, this group of IP data may include flow information, connect
Number, cpu load information or memory load information are connect, in practical applications, there may also be other IP data, specifically herein not
It limits.
305, cluster nas server sends feedback request to DNS.
In the present embodiment, if cluster nas server is after acquiring corresponding IP data according to IP address, so that it may to DNS
Feedback request is sent, mentioned feedback request carries collected IP data；Therefore DNS can be periodically received cluster
The feedback request that nas server is sent, to get IP data.
It should be noted that the IP data are name servers using IP address as parameter, once obtain, and obtaining
The numerical value of the corresponding IP data of every kind of service mode can be calculated after IP data.
It further illustrates, service mode includes flow rate mode, connection digital modeling, aggregative model isotype, in this reality
It applies in example, is only illustrated with aggregative model.
306, DNS is that weight is arranged in the IP data in aggregative model.
In the present embodiment, the IP data in aggregative model include flow information, connection number, cpu load information or memory negative
Information carrying breath.It in practical applications, can also include more information for illustrating IP data, specifically herein without limitation.
It should be noted that DNS is after obtaining the IP data in aggregative model, so that it may for each information in IP data
A customized weight, the sum of percentage of the weight is 1, so that final ranking results are with more effectively illustrating each IP
The loading condition of location.
Such as: assuming that existing parsed tetra- addresses A, B, C, D, each address corresponds to one group of IP data, the IP number
According to including flow information, connection number, cpu load information or memory load information, flow information, connection number, CPU are just set at this time
Load information, memory load information weight be respectively 30%, 25%, 35%, 10%.
307, DNS is according to the comprehensive numerical value of weight calculation.
In the present embodiment, since DNS can sort out flow information, connection number, cpu load information after obtaining IP data
Or the corresponding value of memory negative information carrying breath, therefore comprehensive numerical value can be calculated in conjunction with weight, which is according to each value
With it is the product of respective weights and being calculated.
Such as: assuming that the corresponding value of the corresponding flow information in the address A, connection number, cpu load information, memory negative information carrying breath
Respectively 205,308,180,250；The corresponding flow information in the address B, connection number, cpu load information, memory negative information carrying manner of breathing are answered
Value be respectively 280,260,150,200；The corresponding flow information in the address C, connection number, cpu load information, memory load information
Corresponding value is respectively 200,150,130,250；The corresponding flow information in the address D, connection number, cpu load information, memory load
It is respectively 300,205,160,100 that information is worth accordingly；Therefore the corresponding comprehensive numerical value point in this four addresses A, B, C, D is calculated
It Wei not A=226.5, B=221.5, C=168, D=207.25.
Above-mentioned mentioned numerical value is only the effect of explanation, and specific numerical value is herein without limitation.
308, DNS determines the minimum value in comprehensive numerical value.
In the present embodiment, after calculating the corresponding comprehensive numerical value in each address, these synthesis numerical value are ranked up,
It is assured that out minimum value.
Such as: the sequence of descending mode is carried out to the synthesis numerical value in step 306, at this time ranking results are as follows: 226.5,
221.5,207.25,168；It in practical applications, can also be using other modes, as long as can determine that out for the mode of sequence
Minimum value, specifically herein without limitation.
309, DNS determines that the corresponding IP address of the minimum value is target ip address.
In the present embodiment, it can know that minimum value is numerical value 168 by the ranking results in step 307, therefore can be by number
The corresponding IP address C of value 168 is determined as target ip address.
310, DNS returns to target ip address to client.
In the present embodiment, which is to indicate that the value of IP data is in corresponding when the state of a minimum value
The target ip address C determined in address, that is, step 308, therefore client can access text according to target ip address C
Part system, so that the accessible different server of different clients, effectively solves the problems, such as load imbalance.
Domain name server (DNS) regularly receives the feedback request of cluster nas server transmission, so that it is corresponding to obtain IP address
IP data, by calculate aggregative model in IP data synthesis numerical value come determine the corresponding IP address of minimum value be Target IP
Address, and target ip address is returned to client, allow client to access file system according to the target ip address.Have
It solves the problems, such as load imbalance to effect, allows client normally to access file system, and cluster will not be caused
The wasting of resources of nas server.
2, service mode includes flow rate mode
The present embodiment is only illustrated so that service mode includes flow rate mode as an example.Fig. 4 is provided by the embodiments of the present application
Another embodiment schematic diagram of the method for load balancing.
As shown in figure 4, another embodiment of the method for load balancing provided by the embodiments of the present application includes:
401, domain name server (DNS) receives the domain name request that client is sent.
402, the domain-name information carried in dns resolution domain name request.
403, DNS periodically sends the command messages for carrying IP address to cluster nas server.
404, cluster nas server acquires corresponding IP data according to IP address.
405, cluster nas server sends feedback request to DNS.
Step 401-405 in the present embodiment is similar with the step 301-305 in Fig. 3, is not repeated herein.
406, DNS determines the minimum value in flow rate mode in the numerical value of flow information.
In the present embodiment, DNS can calculate the numerical value of the corresponding flow information of flow rate mode after obtaining IP data, therefore
These numerical value are ranked up, so that it may determine minimum value.
It should be noted that the flow information in the flow rate mode may include flow duration or uninterrupted, in reality
It can also include other parameters in the application of border, specifically herein without limitation.
Such as: assuming that tetra- addresses A, B, C, D, the numerical value of this corresponding flow information in four addresses is respectively 205,280,
200,300, these numerical value are carried out with the sequence of descending mode, at this time ranking results are as follows: 300,280,205,200, it can be seen that
Minimum value is numerical value 200；It in practical applications, can also be using other modes, as long as can determine that out for the mode of sequence
Minimum value, specifically herein without limitation.
407, DNS determines that the corresponding IP address of the minimum value is target ip address.
In the present embodiment, it can know that minimum value is numerical value 200 by the ranking results in step 406, therefore can be by number
The corresponding IP address C of value 200 is determined as target ip address.
408, DNS sends target ip address to client.
In the present embodiment, which is to indicate that the value of IP data is in corresponding when the state of a minimum value
The target ip address C determined in address, that is, step 407, therefore client can access text according to target ip address C
Part system,.
Domain name server (DNS) regularly receives the feedback request of cluster nas server transmission, so that it is corresponding to obtain IP address
IP data, the numerical value by calculating flow information in flow rate mode determines the corresponding IP address of minimum value for Target IP
Location, and target ip address is sent to client, allow client to access file system according to the target ip address.Effectively
Ground solves the problems, such as load imbalance, allows client normally to access file system, and will not cause cluster nas
The wasting of resources of server.
3, service mode includes connection digital modeling
The present embodiment is only illustrated so that service mode includes connection digital modeling as an example.Fig. 5 is that the embodiment of the present application provides
Load balancing method another embodiment schematic diagram.
As shown in figure 5, another embodiment of the method for load balancing provided by the embodiments of the present application includes:
501, domain name server (DNS) receives the domain name request that client is sent.
502, the domain-name information carried in dns resolution domain name request.
503, DNS periodically sends the command messages for carrying IP address to cluster nas server.
504, cluster nas server acquires corresponding IP data according to IP address.
505, cluster nas server sends feedback request to DNS.
Step 501-505 in the present embodiment is similar with the step 301-305 in Fig. 3, is not repeated herein.
506, DNS determines the minimum value of connection number in connection digital modeling.
In the present embodiment, DNS can calculate the numerical value of the corresponding connection number of connection number mode after obtaining IP data, therefore
These numerical value are ranked up, so that it may determine minimum value.It should be noted that the connection number in the connection digital modeling indicates
To pass through the quantity of the client of IP address access file system.
Such as: assuming that tetra- addresses A, B, C, D, the numerical value of this corresponding connection number in four addresses is respectively 208,260,
300,185, these numerical value are carried out with the sequence of descending mode, at this time ranking results are as follows: 300,260,208,185, it can be seen that
Minimum value is numerical value 185；It in practical applications, can also be using other modes, as long as can determine that out for the mode of sequence
Minimum value, specifically herein without limitation.
507, DNS determines that the corresponding IP address of the minimum value is target ip address.
In the present embodiment, it can know that minimum value is numerical value 185 by the ranking results in step 506, therefore can be by number
The corresponding IP address D of value 185 is determined as target ip address.
508, DNS sends target ip address to client.
In the present embodiment, which is to indicate that the value of IP data is in corresponding when the state of a minimum value
The target ip address D determined in address, that is, step 507, therefore client can access text according to target ip address D
Part system.
Domain name server (DNS) regularly receives the feedback request of cluster nas server transmission, so that it is corresponding to obtain IP address
IP data, the numerical value by calculating connection number in connection digital modeling determines the corresponding IP address of minimum value for Target IP
Location, and target ip address is sent to client, allow client to access file system according to the target ip address.Effectively
Ground solves the problems, such as load imbalance, allows client normally to access file system, and will not cause cluster nas
The wasting of resources of server.
It is above-mentioned that mainly scheme provided by the embodiments of the present application is described from interactive angle.It can be understood that being
Realization above-mentioned function contains and executes the corresponding hardware configuration of each function and/or software module.Those skilled in the art answer
This is readily appreciated that, module described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, the application energy
The combining form with hardware or hardware and computer software is reached to realize.Some function is driven actually with hardware or computer software
The mode of dynamic hardware executes, the specific application and design constraint depending on technical solution.Professional technician can be right
Each specific application is to use different methods to achieve the described function, but this realization is it is not considered that exceed the application
Range.
The embodiment of the present application can carry out the division of functional module according to above method example to device, for example, can be right
The each functional module of each function division is answered, two or more functions can also be integrated in a processing module.
Above-mentioned integrated module both can take the form of hardware realization, can also be realized in the form of software function module.It needs
Illustrate, is schematical, only a kind of logical function partition to the division of module in the embodiment of the present application, it is practical to realize
When there may be another division manner.
Fig. 6 is one embodiment schematic diagram of name server provided by the embodiments of the present application.
As shown in fig. 6, name server provided by the embodiments of the present application include receiving unit 601, acquiring unit 602, really
Order member 603, transmission unit 604；
Receiving unit 601, for receiving the domain name request of client transmission, domain name request carries domain-name information；
Acquiring unit 602, the domain name request for being received according to receiving unit 601 are periodically deposited from cluster network is additional
It stores up and obtains IP data in nas server, IP data are the data that node externally services, and externally service indicates to provide file service；
Determination unit 603, the IP data for being got according to acquiring unit 602 determine target ip address；
Transmission unit 604, the target ip address for being determined to client return determination unit 603, the Target IP
Location accesses file system for client.
In the present embodiment, domain name server (DNS) periodically obtains the corresponding IP data of IP address, determines target ip address simultaneously
Target ip address is returned to client, client is allowed to access file system according to the target ip address.It efficiently solves
The problem of load imbalance, client is allowed normally to access file system, and cluster nas server will not be caused
The wasting of resources.
Fig. 7 is one embodiment schematic diagram of cluster nas server provided by the embodiments of the present application.
As shown in fig. 7, cluster nas server provided by the embodiments of the present application include receiving unit 701, acquisition unit 702,
Transmission unit 703；
Receiving unit 701, for receiving the command messages of domain name server (DNS) transmission, the command messages are with carrying IP
Location；
Acquisition unit 702, for acquiring corresponding IP data according to the received IP address of receiving unit 701；
Transmission unit 703, for sending feedback request to DNS, it is single which carries the corresponding acquisition of IP address
The IP data of 702 acquisition of member.
In the present embodiment, IP data are acquired to cluster nas server IP according to transmitted by name server, and by anti-
Name server is informed in feedback request, so that domain name server (DNS) periodically obtains the corresponding IP data of IP address, thus definitely really
It makes target ip address and sends target ip address to client, client is allowed to access file according to the target ip address
System efficiently solves the problems, such as load imbalance, allows client normally to access file system, and will not make
At the wasting of resources of cluster nas server.
Above from the angle of modular functionality entity to the name server of the load balancing in the embodiment of the present application and
The cluster nas server of load balancing is described, and takes below from the angle of hardware handles to the domain name in the embodiment of the present application
Business device and cluster nas server are described.Fig. 8 is hardware configuration one signal of the communication device in the embodiment of the present application
Figure.As shown in figure 8, the communication device may include:
The communication device includes at least one processor 801, communication line 807, memory 803 and at least one communication
Interface 804.
Processor 801 can be a general central processor (central processing unit, CPU), micro process
Device, application-specific integrated circuit (application-specific integrated circuit, server I C) or one
Or it is multiple for controlling the integrated circuit of application scheme program execution.
Communication line 807 may include an access, and information is transmitted between said modules.
Communication interface 804, using the device of any transceiver one kind, for other devices or communication, such as
Ethernet, wireless access network (radio access network, RAN), WLAN (wireless local area
Networks, WLAN) etc..
Memory 803 can be read-only memory (read-only memory, ROM) or can store static information and instruction
Other kinds of static memory, random access memory (random access memory, RAM) or letter can be stored
The other kinds of dynamic storage device of breath and instruction, memory, which can be, to be individually present, and communication line 807 and processor are passed through
It is connected.Memory can also be integrated with processor.
Wherein, memory 803 be used for store execution application scheme computer executed instructions, and by processor 801
Control executes.Processor 801 is for executing the computer executed instructions stored in memory 803, to realize that the application is above-mentioned
The method for the load balancing that embodiment provides.
Optionally, the computer executed instructions in the embodiment of the present application can also be referred to as application code, the application
Embodiment is not especially limited this.
In the concrete realization, as one embodiment, communication device may include multiple processors, such as the place in Fig. 8
Manage device 801 and processor 802.Each of these processors can be monokaryon (single-CPU) processor, can also
To be multicore (multi-CPU) processor.Here processor can refer to one or more devices, circuit, and/or be used for
Handle the processing core of data (such as computer program instructions).
In the concrete realization, as one embodiment, communication device can also include output device 805 and input unit
806.Output device 805 and processor 801 communicate, and can show information in many ways.Input unit 806 and processor
801 communications, can receive the input of user in many ways.For example, input unit 806 can be mouse, touch panel device or
Sensing device etc..
Above-mentioned communication device can be a fexible unit either dedicated unit.In the concrete realization, it communicates
Device can be desktop computer, portable computer, nas server, wireless terminal device, embedded equipment or have similar knot in Fig. 6
The device of structure.The embodiment of the present application does not limit the type of communication device.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.
It is apparent to those skilled in the art that for convenience and simplicity of description, the domain name of foregoing description
The specific work process of server, cluster nas server and unit, can be with reference to corresponding in preceding method embodiment
Journey, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed name server, cluster nas clothes
Business device and method, may be implemented in other ways.For example, the name server of load balancing described above, cluster
The embodiment of nas server is only schematical, for example, the division of the unit, only a kind of logical function partition is real
There may be another division manner when border is realized, such as multiple units or components may be combined or can be integrated into another and be
System, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling or direct-coupling
Or communication connection can be through some interfaces, the indirect coupling or communication connection of module or unit can be electrical property, it is mechanical or
Other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the application
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of method of load balancing characterized by comprising
Domain name server (DNS) receives the domain name request that client is sent, and domain name request carries domain-name information；
The DNS is requested according to domain name, and IP data are periodically obtained from cluster network additional storage nas server, described
IP data are the data that node externally services, and the external service indicates to provide file service；
The DNS determines target ip address according to the IP data；
The DNS returns to the target ip address to the client, and the target ip address is for client access text
Part system.
2. the method according to claim 1, wherein the DNS determines target ip address according to the IP data,
Include:
The DNS calculates the numerical value of the corresponding IP data of every kind of service mode；
The DNS is ranked up the numerical value, determines the minimum value in the numerical value；
The DNS determines that IP address corresponding to the minimum value is target ip address.
3. according to the method described in claim 2, it is characterized in that, the service mode includes aggregative model, the comprehensive mould
The corresponding IP data of formula include flow information, connection number, cpu load information or memory load information, determine the numerical value
In minimum value, comprising:
The DNS is that the flow information, the connection number, the cpu load information or the memory load information are set respectively
Weight is set, the sum of percentage of the weight is 1；
DNS flow information according to the weight calculation, the connection number, the cpu load information or the memory
The synthesis numerical value of load information；
The comprehensive numerical value is ranked up by the DNS, and determines the minimum value in the comprehensive numerical value.
4. according to the method described in claim 2, it is characterized in that, the service mode further includes flow rate mode or connection digital-to-analogue
Formula, the corresponding IP data of the flow rate mode include flow information, the corresponding IP data packet of the connection digital modeling
Connection number is included, the connection number is expressed as accessing the quantity of the client of file system by the IP address.
5. method according to any one of claims 1-4, which is characterized in that described periodically from cluster network additional storage
IP data are obtained in nas server, comprising:
The domain-name information carried in the dns resolution domain name request, to obtain the corresponding IP address of domain name information；
The DNS periodically sends the command messages for carrying the IP address to cluster nas server, and the command messages are used for
The corresponding IP data of the cluster nas collection of server；
The DNS receives the feedback request that the cluster nas server is sent, and the feedback request carries the IP address pair
The IP data answered.
6. a kind of method of load balancing characterized by comprising
Cluster network additional storage nas server receives the command messages that domain name server (DNS) is sent, and the command messages carry
There is IP address；
The cluster nas server acquires corresponding IP data according to the IP address；
The cluster nas server sends feedback request to the DNS, and it is corresponding that the feedback request carries the IP address
The IP data.
7. a kind of name server characterized by comprising
Receiving unit, for receiving the domain name request of client transmission, domain name request carries domain-name information；
Acquiring unit, the domain name request for being received according to the receiving unit, periodically from cluster network additional storage
IP data are obtained in nas server, the IP data are the data that node externally services, and the external service indicates to provide file
Service；
Determination unit determines target ip address for the IP data according to the information acquired by the acquisition unit；
Transmission unit, for returning to the target ip address that the determination unit is determined, the Target IP to the client
Address accesses file system for the client.
8. a kind of cluster nas server characterized by comprising
Receiving unit, for receiving the command messages of domain name server (DNS) transmission, the command messages carry IP address；
Acquisition unit, for acquiring corresponding IP data according to the received IP address of the receiving unit；
Transmission unit, for sending feedback request to the DNS, it is corresponding described that the feedback request carries the IP address
The IP data of acquisition unit acquisition.
9. a kind of name server, which is characterized in that domain name server includes: input/output (I/O) interface, processor
And memory,
Program instruction is stored in the memory；
The processor executes such as side as claimed in any one of claims 1 to 5 for executing the program instruction stored in memory
Method.
10. a kind of computer readable storage medium, including instruction, which is characterized in that when described instruction is transported on a computing device
When row, so that the computer equipment executes method according to any one of claims 1 to 5.
Priority Applications (1)
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| CN201811197346.XA CN109347947A (en) | 2018-10-15 | 2018-10-15 | A kind of method of load balancing, name server and cluster nas server |
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|---|---|---|---|
| CN201811197346.XA CN109347947A (en) | 2018-10-15 | 2018-10-15 | A kind of method of load balancing, name server and cluster nas server |
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| CN114760298B (en) * | 2022-03-18 | 2024-05-28 | 中国人寿保险股份有限公司 | Service request response method, device, electronic equipment and storage medium |
| CN115086099B (en) * | 2022-06-07 | 2023-12-29 | 浙江浩瀚能源科技有限公司 | Data processing method, device, storage medium and system |
| CN115086099A (en) * | 2022-06-07 | 2022-09-20 | 浙江浩瀚能源科技有限公司 | Data processing method, device, storage medium and system |
| CN115225608A (en) * | 2022-07-22 | 2022-10-21 | 济南浪潮数据技术有限公司 | Load balancing method, device, equipment and medium for DNS domain name resolution |
| CN117082152A (en) * | 2023-09-27 | 2023-11-17 | 新华三技术有限公司 | Service processing method, system and device |
| CN117082152B (en) * | 2023-09-27 | 2024-01-12 | 新华三技术有限公司 | Service processing method, system and device |
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