CN101741907A - Method and system for balancing server load and main server - Google Patents
Method and system for balancing server load and main server Download PDFInfo
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- CN101741907A CN101741907A CN200910260007A CN200910260007A CN101741907A CN 101741907 A CN101741907 A CN 101741907A CN 200910260007 A CN200910260007 A CN 200910260007A CN 200910260007 A CN200910260007 A CN 200910260007A CN 101741907 A CN101741907 A CN 101741907A
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Abstract
The embodiment of the invention discloses a method for balancing server load, comprising the following steps: receiving a login request sent by a client after setting and storing a load distribution strategy, and acquiring the client information carried in the login request; and searching the server corresponding to the client from the load distribution strategy according to the acquired client information, and sending the address information of the searched corresponding server back to the client to lead the client to login the corresponding server. Correspondingly, the embodiment of the invention also discloses a system for balancing the server load and a main server. In the technical scheme provided by the embodiment of the invention, the distribution of corresponding servers can be realized according to the real condition of the client in the process of balancing the server load for a system so as to satisfy the versatile service requirements from the clients.
Description
Technical field
The present invention relates to field of computer technology, more particularly, relate to a kind of method for balancing server load, system and master server.
Background technology
Quick increase along with professional raising, visit capacity and the data traffic of measuring of network application, the also corresponding increase of the disposal ability of server and calculating strength, and the disposal ability of the logical server of a Daepori can only reach per second and handles several ten thousand to a hundreds of thousands request, can't handle individual even more a plurality of requests up to a hundred within a second.By load-balancing method, a plurality of servers can be formed a system, and Servers-all balancedly be distributed in all requests by software engineering, this system just has the ability of millions of of processing each second even more a plurality of requests so.
At present, the algorithm that carries out server load balancing adopts weighted value, repeating query method etc. more, complicated any, can also unite the factors such as current linking number, server health degree calculates, and, it all is to determine dynamically that by load-balanced server the outside generally can't be interfered fully that request on the client by which station server in the system is handled.
But in the network application of reality, existing load-balancing algorithm makes some specific business demand can't obtain well satisfying, for example, in the trans-regional cluster environment, in order to save resource and to lower communication and expend, client may wish to be connected to that the home server node carries out processing of request in the system; Perhaps, the request of core business is wished to be handled etc. by the favorable service device of performance in the system.But because at present when carrying out server load balancing, client can't be interfered the distribution of load, causes the business demand of client changing load can't obtain accurately satisfying.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method for balancing server load, system and master server, to satisfy the changeable business demand of client.
The embodiment of the invention is achieved in that
The embodiment of the invention provides a kind of method for balancing server load, after setting and the memory load allocation strategy, comprising:
Receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In described load sharing policy, search the corresponding with service device of described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client.
Preferably, when failing in described load sharing policy, to find the corresponding with service device of described client, be that described client is distributed given server according to current network conditions, and the address information of described given server is returned described client.
Described setting and memory load allocation strategy comprise:
Client is carried out cohort divide, and divide the result according to cohort and distribute corresponding server for each cohort;
According to allocation result, the corresponding relation of described client, described cohort and described server is stored.
Describedly client is carried out cohort divide and to comprise:
According to the type of service of the area distribution of described client, described client and the use user of described client described client is carried out the cohort division.
Describedly in described load sharing policy, search the corresponding with service device of described client, comprising according to the described client-side information that is obtained:
In described load sharing policy, search the cohort that described client belongs to according to described client-side information, and, obtain the corresponding with service device of described client according to the corresponding relation of described cohort and server.
The embodiment of the invention provides a kind of system of equalization server load, and this system comprises: master server and client, wherein,
Described master server is used for being provided with and the memory load allocation strategy; Receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In described load sharing policy, search the corresponding with service device of described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client.
Described client is used for sending logging request to described master server, and receives the address information of the corresponding with service device that described master server returns.
Preferably, when described master server fails to find the corresponding with service device of described client in described load sharing policy, it is that described client is distributed given server that described master server also is used for according to current network conditions, and the address information of described given server is returned described client.
Preferably, described client also is used for the address information of the corresponding with service device that the described master server of buffer memory returns.
The embodiment of the invention provides a kind of master server, comprising: Policy storage unit, receiving element, search unit and transmitting element, wherein,
Described Policy storage unit is used for being provided with and the memory load allocation strategy;
Described receiving element is used to receive the logging request that client sends, and obtains client-side information entrained in the described logging request;
The described unit of searching is used for searching at described load sharing policy according to the described client-side information that is obtained the corresponding with service device of described client;
Described transmitting element, the address information that is used for the described corresponding with service device that will find returns to described client.
Preferably, also comprise the server designating unit, when searching the unit and failing to find the corresponding with service device of described client in described load sharing policy, it is that described client is distributed given server that described server designating unit is used for according to current network conditions when described.
Preferably, described transmitting element also is used for the address information of described given server is returned described client.
Compared with prior art, the technical scheme that the embodiment of the invention provides has the following advantages and characteristics: the embodiment of the invention is by setting in advance load sharing policy, and obtain the relevant information of this client according to the logging request that received client sends, in the load sharing policy that is prestored, search the pairing server of this client by this relevant information.Like this, in carrying out system, on the server during load balanced, can carry out the distribution of corresponding with service device according to the actual conditions of client, thereby satisfy the changeable business demand of client.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the related a kind of method for balancing server load flow chart of the embodiment of the invention;
Fig. 2 is the system configuration schematic diagram of the related a kind of equalization server load of the embodiment of the invention;
Fig. 3 is the related a kind of master server structural representation of the embodiment of the invention;
Fig. 4 is the related a kind of method for balancing server load flow chart of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of method for balancing server load, in the method, at first needs to be provided with and the memory load allocation strategy, wherein, when carrying out being provided with of load sharing policy, can carry out by the following method:
Client is carried out cohort divide, for example, the client that will be in unified zone is divided in the cohort, perhaps, the client that will carry out certain class business is divided in the cohort, perhaps, according to the use crowd of client as cohort divide according to several different methods, do not limit at this.After client being carried out the cohort division, specify corresponding server for each cohort, the request on the client in this cohort is handled by specified server.
Certainly, cohort is not necessary to carry out for client is divided, and also can directly set up the corresponding relation between client and the server.
In a word, load sharing policy provides a kind of rule of carrying out server load balancing, makes when carrying out server load balanced, can carry out according to this rule.In addition, need to prove that set load sharing policy can be changed according to practical situations.For example, when business performed on a certain client changes, can corresponding change load sharing policy in the relevant information of this client.
Finish load sharing policy work is set after, if be according to dividing earlier cohort in sharing out the work, the mode of given server is carried out again, then the corresponding relation of client, cohort and server can be stored; And if what directly set up in sharing out the work is corresponding relation between client and the server, then the corresponding relation of client and server is stored and got final product.
After the setting of finishing above-mentioned load sharing policy and storage work, can carry out step as shown in Figure 1:
Step 101: receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In step 101, master server at first obtains client-side information entrained in this logging request, for example user name of the pairing IP of this client address, this client etc. after receiving the logging request that client sends.If the load configuration strategy has sent to client with configuration result after setting is finished, then client also can be carried its cohort information that belongs to etc. in the logging request that is sent.
Step 102: the corresponding with service device of in described load sharing policy, searching described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client, makes described client carry out login to described corresponding with service device.
In step 102, master server is according to the client-side information that is obtained, from load sharing policy, search the pairing server of this client, for example: the ownership cohort that can at first search this client according to the IP address or the user name of this client of being obtained, and further obtain the pairing server of this cohort, then this server promptly is used to handle the request that this client sends; And if what obtained is the cohort information that client belongs to, then directly utilize this information searching corresponding server from logging request.Master server is finished after the searching work of corresponding with service device, the address information of corresponding with service device is returned to client, make this client carry out the login of corresponding with service device, wherein, master server can return to client with the URL of corresponding with service device, the IP address of corresponding with service device can also be returned to client.
Need to prove, if master server is after obtaining client-side information, according to this client-side information, fail to find the pairing server of this client, for example because this client also is distribution corresponding with service device, perhaps the pairing server present load of this client state has not allowed the access of this client etc., then under this kind situation, master server can be this client given server according to load condition of current network state or server etc., and the address information of this given server returned to client, thereby make client carry out the login of this given server.
In addition,, after receiving the server address information that master server returns, this address information can be carried out buffer memory, use, correspondingly also reduce the workload of master server and the use of Internet resources in order to follow-up login for client.
A kind of method for balancing server load that the embodiment of the invention provided, by setting in advance load sharing policy, and obtain the relevant information of this client according to the logging request that received client sends, in the load sharing policy that is prestored, search the pairing server of this client by this relevant information.Like this, in carrying out system, on the server during load balanced, can carry out the distribution of corresponding with service device according to the actual conditions of client, thereby satisfy the changeable business demand of client.
Correspondingly, the embodiment of the invention also provides a kind of system of equalization server load, and this system comprises structure as shown in Figure 2: master server 201 and client 202, wherein:
Master server 201: be used for being provided with and the memory load allocation strategy; Receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In described load sharing policy, search the corresponding with service device of described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client.
Client 202 is used for sending logging request to described master server, and receives the address information of the corresponding with service device that described master server returns.
In addition, when master server 201 fails to find the corresponding with service device of described client 202 in described load sharing policy, it is that described client 202 is distributed given server that described master server 201 also is used for according to current network conditions, and the address information of described given server is returned described client 202.
For reducing the workload of master server 201, the address information of the corresponding with service device that client 202 also can be returned master server 201 is carried out buffer memory.
Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network element.
The system of a kind of equalization server load that this embodiment provides can be used to carry out the method for balancing server load that the embodiment of the invention provides.This equalization server load system carries out the process of equalization server load, the equalization server carrying method that can provide referring to the embodiment of the invention.
The system of a kind of equalization server load that the embodiment of the invention provided in native system, during load balanced, can carry out the distribution of corresponding with service device according to the actual conditions of client, thereby satisfy the changeable business demand of client on carrying out server.
At last, the embodiment of the invention also provides a kind of master server, and this master server comprises structure as shown in Figure 3: Policy storage unit 301, receiving element 302, search unit 303 and transmitting element 304, wherein:
Policy storage unit 301: be used for being provided with and the memory load allocation strategy;
Receiving element 302: be used to receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
Transmitting element 304, the address information that is used for the described corresponding with service device that will find returns to described client.
Except above several elementary cells, this master server also can comprise the server designating unit, when searching the unit and failing to find the corresponding with service device of described client in described load sharing policy, it is that described client is distributed given server that described server designating unit is used for according to current network conditions when described.In addition, after the server designating unit was client distribution given server, transmitting element also can be used for the address information of this given server is returned to described client.
Be understandable that, only be schematic in the accompanying drawing or shown in the embodiment, the presentation logic structure, the wherein said unit that shows as separating component may or may not be physically to separate, the parts that show as the unit may be or may not be physical locations, promptly can be positioned at a place, perhaps be distributed on several network element.
A kind of master server that this embodiment provides can be used to carry out the method for balancing server load that the embodiment of the invention provides.This master server carries out the process of equalization server load, the equalization server carrying method that can provide referring to the embodiment of the invention.
A kind of master server that present embodiment provided during load balanced, can carry out the distribution of corresponding with service device according to the actual conditions of client, thereby satisfy the changeable business demand of client on carrying out server.
In conjunction with said method, device and concrete application scenarios, technical scheme involved in the present invention is described further.In the present embodiment, server system comprises a plurality of servers, in the process of carrying out server load balancing, the load pressure between balanced each server need distribute a plurality of requests that client sent according to actual conditions to a plurality of servers.For in the assigning process that carries out load, can satisfy the requirement of client simultaneously, can set in advance and store a load sharing policy, wherein, can comprise following information in this load sharing policy:
The request that client sends in the designated user cohort is handled by given server, and for example, in trans-regional cluster environment, the request that client sent that is positioned at areal is preferentially handled by the home server of this client their location; The request that client sent of core business cohort is handled by the server of the better performances of appointment.In addition, except client being carried out the cohort division, can also divide, the business of appointment be handled by specified server etc. the business that request is handled.Certainly, can also carry out multiple division, and be that different dividing mode is distributed different priority, be that the request distribution server that client sent is handled according to the height of priority.
In the present embodiment, suppose that this system carries out the division of client cohort according to the area, and according to dividing the result, for distributing given server, the request that client sent of specifying cohort handles, then according to above-mentioned, the load sharing policy of being stored can be specially: the identification information of included client and client in the client cohort of dividing according to the zone, the pairing identification information of each cohort, the corresponding cohort, produce related server etc. with corresponding cohort.
In addition, need to prove also that load sharing policy can carry out adaptations according to the actual conditions of network and user's demand, thereby provides respective service for client better.
After the setting of finishing load sharing policy and storage work, can carry out flow process as shown in Figure 4:
Step 401: client sends logging request to master server;
Step 402: after master server receives the logging request that client sends, be that this client is distributed corresponding server according to relevant information entrained in the logging request;
In step 402, master server at first detects client-side information entrained in this request, for example the IP address of this client or user name etc. after receiving the logging request that client sends.Master server compares with the load sharing policy of storing in advance after IP address that obtains client or user name, checks cohort and the pairing server of this cohort that this client belongs to; Perhaps, master server at first detects client-side information entrained in this request after receiving the logging request that client sends, for example the IP address of this client or cohort that user name and this client belonged to etc.Master server compares the pairing server of the cohort that viewing client-side belonged to the load sharing policy of storage in advance behind IP address that obtains client or cohort that user name and this client belonged to.
When searching its pairing server for client, if relevant information according to client entrained in the logging request that client sent, find the pairing server of this client, then master server returns the address information of this server, for example URL of this server etc. to this client.And if according to the relevant information of client entrained in the logging request that client sent, fail to find corresponding server (for example for this client, this client does not add any cohort, then correspondingly do not specify any server yet, perhaps, this client has and has added specific cohort, and specified server arranged, but the load of current network conditions or given server does not allow the access of this client), then master server can be according to the loading condition of server in the present situation of network and the system, be that this client specifies a server, and return the address information of this server, for example the URL of this server etc. to client.
Step 403: client is logined again according to the address information of the given server that master server returned, and handles the association requests that it sends by given server.
In step 403, client is after the address information that receives the given server that master server returns, and according to new address information login given server, and the association requests that follow-up this client sent will be handled on given server.
In addition, need to prove, when the each logon server of client, for reducing the workload of master server, client can be carried out buffer memory with the address information of the given server that master server returned, when carrying out logining next time, can be directly according to this address information login specified server.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM (Read-Only Memory, read-only storage memory body), RAM (RandomAccess Memory stores memory body at random), magnetic disc or CD.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (11)
1. a method for balancing server load is characterized in that, after setting and the memory load allocation strategy, comprising:
Receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In described load sharing policy, search the corresponding with service device of described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client, makes described client carry out login to described corresponding with service device.
2. method according to claim 1, it is characterized in that, when failing in described load sharing policy, to find the corresponding with service device of described client, according to current network conditions is that described client is distributed given server, and the address information of described given server returned described client, make described client carry out login to described given server.
3. method according to claim 1 and 2 is characterized in that, described setting and memory load allocation strategy comprise:
Client is carried out cohort divide, and divide the result according to cohort and distribute corresponding server for each cohort;
According to allocation result, the corresponding relation of described client, described cohort and described server is stored.
4. method according to claim 3 is characterized in that, describedly client is carried out cohort divides and to comprise:
According to the type of service of the area distribution of described client, described client and the use user of described client described client is carried out the cohort division.
5. method according to claim 3 is characterized in that, describedly searches the corresponding with service device of described client according to the described client-side information that is obtained in described load sharing policy, comprising:
In described load sharing policy, search the cohort that described client belongs to according to described client-side information, and, obtain the corresponding with service device of described client according to the corresponding relation of described cohort and server.
6. the system of an equalization server load is characterized in that, comprises master server and client, wherein,
Described master server is used for being provided with and the memory load allocation strategy; Receive the logging request that client sends, and obtain client-side information entrained in the described logging request;
In described load sharing policy, search the corresponding with service device of described client according to the described client-side information that is obtained, and the address information of the described corresponding with service device that will find returns to described client, makes described client carry out login to described corresponding with service device;
Described client is used for sending logging request to described master server, and receives the address information of the corresponding with service device that described master server returns.
7. system according to claim 6, it is characterized in that, when described master server fails to find the corresponding with service device of described client in described load sharing policy, it is that described client is distributed given server that described master server also is used for according to current network conditions, and the address information of described given server is returned described client.
8. system according to claim 6 is characterized in that, described client also is used for the address information of the corresponding with service device that the described master server of buffer memory returns.
9. a master server is characterized in that, comprising: Policy storage unit, receiving element, search unit and transmitting element, wherein,
Described Policy storage unit is used for being provided with and the memory load allocation strategy;
Described receiving element is used to receive the logging request that client sends, and obtains client-side information entrained in the described logging request;
The described unit of searching is used for searching at described load sharing policy according to the described client-side information that is obtained the corresponding with service device of described client;
Described transmitting element, the address information that is used for the described corresponding with service device that will find returns to described client.
10. master server according to claim 9, it is characterized in that, also comprise the server designating unit, when searching the unit and failing to find the corresponding with service device of described client in described load sharing policy, it is that described client is distributed given server that described server designating unit is used for according to current network conditions when described.
11. master server according to claim 10 is characterized in that, described transmitting element also is used for the address information of described given server is returned described client.
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