CN103188163A - Load balancing method and device - Google Patents
Load balancing method and device Download PDFInfo
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- CN103188163A CN103188163A CN2011104602567A CN201110460256A CN103188163A CN 103188163 A CN103188163 A CN 103188163A CN 2011104602567 A CN2011104602567 A CN 2011104602567A CN 201110460256 A CN201110460256 A CN 201110460256A CN 103188163 A CN103188163 A CN 103188163A
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Abstract
The invention provides a load balancing method and device in order to solve the problem that in the prior art, client side applications can not be well guaranteed in a load balancing process. The method includes that the load balancing device receives a server access request sent by a client side, chooses from a plurality of network exits according to a preset load balancing algorithm, and transmits the server access request according to the chosen exit, wherein the plurality of network exits are respectively connected with a plurality of networks through a plurality of physical links, home networks of a server are included in the plurality of networks, other non-home networks and the home networks are linked in a communication mode, and due to the fact that the load balancing device chooses from the plurality of network exits according to the load balancing algorithm and transmits the server access request sent by the client side, the client side applications are well guaranteed in the load balancing process.
Description
Technical field
The present invention relates to the data service field, particularly a kind of load-balancing method and device.
Background technology
Because at present each core of existing network is along with the raising of traffic carrying capacity, the quick growth of visit capacity and data traffic, its disposal ability and calculating strength also correspondingly increase, and make single server apparatus can't bear at all.In the case, do a large amount of HardwareUpgrings if throw away existing equipment, to cause the waste of existing resource like this, if when facing the lifting of traffic carrying capacity next time again, this will cause again the great number cost of HardwareUpgring to drop into again, in addition performance more remarkable equipment can not satisfy the demand that the current business amount increases.
For this reason, a kind of new technology-load balancing (is called load balancing again, English name is Load Balance) occurred, its meaning is carried out load (task) balance, is shared on a plurality of operating units and carry out exactly, the for example crucial application server of Web server, ftp server, enterprise and other mission critical server etc., thus finish the work task jointly.Existing load-balancing technique is used and is all belonged to the forward application, as the load balancing according to request content and load condition realization server, perhaps realize the automatic routing of server side according to network condition, its core is ensure server professional normal, and does not ensure the scheme of client application.
This shows and have following problem in the prior art: in the load balancing process, can not well ensure client application.
Summary of the invention
The objective of the invention is in the load balancing process, can not well ensure the problem of client application at what exist in the prior art that a kind of load-balancing method and device are provided, and this method comprises:
The load balancing device receives the server access request that client sends;
The load balancing device is according to default load-balancing algorithm, from its a plurality of network egresses, select, and the outlet forwarding server access request by selecting, wherein a plurality of network egresses connect a plurality of networks through many physical links respectively, the home network that comprises server in a plurality of networks has between other non-attribution network and the home network and communicates to connect.
Further, the load balancing device is selected from a plurality of network egresses according to default load-balancing algorithm, and is specially by the outlet forwarding server access request of selecting:
The load balancing device is judged when client belongs to the set of given client end, according to default load-balancing algorithm, from a plurality of network egresses, selects, and the outlet forwarding server access request by selecting.
Further, also comprise: the load balancing device is judged when client does not belong to the set of given client end, direct network egress forwarding server access request by presetting.
Further, the load balancing device is selected from a plurality of network egresses according to default load-balancing algorithm, and is specially by the outlet forwarding server access request of selecting:
Reference address in this server access request is visit first, the load balancing device is according to route time delay and the jumping figure of each network egress correspondence, and default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
Further, the load balancing device is selected from a plurality of network egresses, and is specially by the outlet forwarding server access request of selecting:
Reference address in this server access request is non-visit first, and the load balancing device is by the network egress forwarding server access request of selecting before.
The embodiment of the invention also provides a kind of load balancing device, comprising:
Receiver module is used for receiving the server access request that client sends;
Forwarding module, be used for according to default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting, wherein a plurality of network egresses connect a plurality of networks through many physical links respectively, the home network that comprises server in a plurality of networks has between other non-attribution network and the home network and communicates to connect.
Further, forwarding module also is used for judging when client belongs to the set of given client end, according to default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
Further, forwarding module also is used for judging when client does not belong to the set of given client end, directly the network egress forwarding server access request by presetting.
Further, forwarding module, the reference address that also is used for this server access request is visit first, route time delay and jumping figure according to each network egress correspondence, and default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
Further, forwarding module, the reference address that also is used for this server access request are non-visit first, by the network egress forwarding server access request of selecting before.
Because the load balancing device is selected from a plurality of network egresses according to load-balancing algorithm, transmit the server access request that client sends, therefore in the load balancing process, well ensured client application.
Description of drawings
Fig. 1 represents SiteServer LBS network topological diagram provided by the invention;
Fig. 2 represents method flow diagram provided by the invention;
Fig. 3 represents structure drawing of device provided by the invention.
Embodiment
Below in conjunction with Figure of description the preferred embodiment of the present invention is described, the embodiment of the invention provides a kind of method and device of load balancing, with what exist in the prior art that exists in the solution prior art, in the load balancing process, can not well ensure the problem of client application.
The SiteServer LBS of present embodiment, comprise as shown in Figure 1, client 11, load balancing device 12, server 3, has communication link between client 11 and the load balancing device 12, load balancing device 12 has a plurality of network egresses, and connect a plurality of networks 14 through many physical links 13 respectively by a plurality of network egresses, and comprise the home network of server in a plurality of networks, have between other non-attribution network and the home network and communicate to connect.This method comprises, the load balancing device receives the server access request that client sends, the load balancing device is according to default load-balancing algorithm, from its a plurality of network egresses, select, and the outlet forwarding server access request by selecting, wherein a plurality of network egresses connect a plurality of networks through many physical links respectively, comprise the home network of server in a plurality of networks, have between other non-attribution network and the home network to communicate to connect.
The method flow diagram that the embodiment of the invention provides is illustrated in fig. 2 shown below, and comprises the steps:
In this step, from the server access request, extract the source IP address of client, if this source IP address is in the exclusive IP address field of the VIP client of appointment, can think that then this client is VIP client, be that the load balancing device just can judge that client belongs to the set of given client end, can from a plurality of network egresses, select according to default load-balancing algorithm in the subsequent step like this, and the outlet forwarding server access request by selecting.For example 3 network egresses are arranged is respectively network egress A, network egress B, network egress C to the load balancing device, this client is VIP client, then can be according to default load-balancing algorithm in the subsequent step, select network egress B (also may be network egress A or network egress C certainly), and by network egress B forwarding server access request.Concrete being implemented in the subsequent step described in detail.
In this step, if this source IP address is not in the exclusive IP address field of the VIP client of appointment, can think that then this client is not VIP client, namely the load balancing device is judged when client does not belong to the set of given client end, directly the network egress forwarding server access request by presetting.For example when client was non-VIP client, the load balancing device no longer carried out equilibrium treatment, but directly the server access request is forwarded to network egress A.The network egress A network egress that non-VIP client is set in advance.
The load balancing device is judged when client belongs to the set of given client end, call the load balancing group of many outlets and prepare to carry out equilibrium treatment, be preset with load-balancing algorithm in the load balancing group, by this default load-balancing algorithm, in the subsequent step, according to default load-balancing algorithm, from a plurality of network egresses, select, select optimum path, and the network egress forwarding server access request by the optimal path correspondence selected.Also to from the server access request, extract the IP address of destination server in this step.
The load balancing device can record the address of the destination server of having visited, and this IP address and the record of destination server compared, and whether the address of watching this destination server accessed mistake.If visited, show that then the reference address in this server access request is non-visit first,
This step shows, reference address in this server access request is visit first, the load balancing group can be parameter with route time delay and the jumping figure of network egress correspondence, select from a plurality of network egresses according to load-balancing algorithm, select optimal path, for example, the route time delay of network egress A correspondence is 50ms, jumping figure 5, the route time delay of network egress B correspondence is 30ms, jumping figure 3, the route time delay of network egress C correspondence is 60ms, jumping figure 6, the optimal path of selecting by load-balancing algorithm is the path of network egress B correspondence, and then the load balancing device is by network egress B forwarding server access request.
Whether the optimal path of selecting before the step 109, the inspection of load balancing device is available, if then carry out step 110, otherwise execution in step 108.
This step shows that the reference address in this server access request is non-visit first, and the load balancing device is by the network egress B forwarding server access request of selecting before.Export health examination simultaneously, check whether the path of lower network outlet B correspondence is available, prevent that the server access request that causes because the path is unavailable from can't send to corresponding server.
Step 110, the server response request is returned the request msg flow process and is finished.
The scheme of present embodiment is the reverse application of a kind of load balancing, namely sets up the load balancing device that connects a plurality of network egresses at client-side, and particularly VIP client access network can automatic routing thereby realize client.Remedy the defective that VIP client's important Internet service is difficult to ensure, expanded the application category of load-balancing technique at client-side.This method had both been saved VIP client's equipment cost and the maintenance cost of multilink, can export at certain again and guarantee still under the unusual situation that business is normal.
The embodiment of the invention also provides a kind of load balancing device, as shown in Figure 3, comprising:
Further, forwarding module 202 also is used for judging when client belongs to the set of given client end, according to default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
Further, forwarding module 202 also is used for judging when client does not belong to the set of given client end, directly the network egress forwarding server access request by presetting.
Further, forwarding module 202, the reference address that also is used for this server access request is visit first, route time delay and jumping figure according to each network egress correspondence, and default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
Further, forwarding module 202, the reference address that also is used for this server access request are non-visit first, by the network egress forwarding server access request of selecting before.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a load-balancing method is characterized in that, comprising:
The load balancing device receives the server access request that client sends;
The load balancing device is according to default load-balancing algorithm, from its a plurality of network egresses, select, and the outlet forwarding server access request by selecting, wherein a plurality of network egresses connect a plurality of networks through many physical links respectively, the home network that comprises server in a plurality of networks has between other non-attribution network and the home network and communicates to connect.
2. method according to claim 1 is characterized in that, the load balancing device is selected from a plurality of network egresses according to default load-balancing algorithm, and is specially by the outlet forwarding server access request of selecting:
The load balancing device is judged when client belongs to the set of given client end, according to default load-balancing algorithm, from a plurality of network egresses, selects, and the outlet forwarding server access request by selecting.
3. method according to claim 2 is characterized in that, also comprises: the load balancing device is judged when client does not belong to the set of given client end, direct network egress forwarding server access request by presetting.
4. method according to claim 1 is characterized in that, the load balancing device is selected from a plurality of network egresses according to default load-balancing algorithm, and is specially by the outlet forwarding server access request of selecting:
Reference address in this server access request is visit first, the load balancing device is according to route time delay and the jumping figure of each network egress correspondence, and default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
5. method according to claim 4 is characterized in that, the load balancing device is selected from a plurality of network egresses, and is specially by the outlet forwarding server access request of selecting:
Reference address in this server access request is non-visit first, and the load balancing device is by the network egress forwarding server access request of selecting before.
6. a load balancing device is characterized in that, comprising:
Receiver module is used for receiving the server access request that client sends;
Forwarding module, be used for according to default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting, wherein a plurality of network egresses connect a plurality of networks through many physical links respectively, the home network that comprises server in a plurality of networks has between other non-attribution network and the home network and communicates to connect.
7. device according to claim 6 is characterized in that, forwarding module, also be used for judging when client belongs to the set of given client end, according to default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
8. device according to claim 7 is characterized in that, forwarding module also is used for judging when client does not belong to the set of given client end, directly the network egress forwarding server access request by presetting.
9. device according to claim 6, it is characterized in that, forwarding module, the reference address that also is used for this server access request is visit first, route time delay and jumping figure according to each network egress correspondence, and default load-balancing algorithm, from a plurality of network egresses, select, and the outlet forwarding server access request by selecting.
10. device according to claim 9 is characterized in that, forwarding module, the reference address that also is used for this server access request are non-visit first, by the network egress forwarding server access request of selecting before.
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| CN2011104602567A CN103188163A (en) | 2011-12-31 | 2011-12-31 | Load balancing method and device |
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| CN2011104602567A CN103188163A (en) | 2011-12-31 | 2011-12-31 | Load balancing method and device |
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| CN103188163A true CN103188163A (en) | 2013-07-03 |
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Cited By (3)
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| CN108259372A (en) * | 2016-12-28 | 2018-07-06 | 天津岩石科技有限公司 | A kind of multi-link load balance system and method |
| CN110138660A (en) * | 2019-06-06 | 2019-08-16 | 杭州商湾网络科技有限公司 | A kind of multiple exit route selection method |
| WO2020248363A1 (en) * | 2019-06-14 | 2020-12-17 | 平安科技（深圳）有限公司 | Load balancing method for server and related apparatus |
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| CN101867976A (en) * | 2010-07-22 | 2010-10-20 | 杭州华三通信技术有限公司 | Load balancing method based on mobile terminal number and equipment |
| CN102215247A (en) * | 2010-05-06 | 2011-10-12 | 华为技术有限公司 | Network proximity load balancing method and device |
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| CN108259372A (en) * | 2016-12-28 | 2018-07-06 | 天津岩石科技有限公司 | A kind of multi-link load balance system and method |
| CN110138660A (en) * | 2019-06-06 | 2019-08-16 | 杭州商湾网络科技有限公司 | A kind of multiple exit route selection method |
| WO2020248363A1 (en) * | 2019-06-14 | 2020-12-17 | 平安科技（深圳）有限公司 | Load balancing method for server and related apparatus |
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