CN108123888A - Load-balancing method, the apparatus and system of message - Google Patents
Load-balancing method, the apparatus and system of message Download PDFInfo
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- CN108123888A CN108123888A CN201611088354.1A CN201611088354A CN108123888A CN 108123888 A CN108123888 A CN 108123888A CN 201611088354 A CN201611088354 A CN 201611088354A CN 108123888 A CN108123888 A CN 108123888A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
- H04L63/0245—Filtering by information in the payload
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/563—Data redirection of data network streams
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Abstract
The present invention provides a kind of load-balancing method of message, apparatus and system, this method includes：Load-balanced server receives the user's request message for replicating and being introduced into local carrier network；Load-balanced server is by user's request message load balancing to corresponding Redirect Server.Pass through the present invention, it will be replicated using load-balanced server and introduce user's request message load balancing of local carrier network to Redirect Server, realize that user redirects service function, it solves the problems, such as to need special hardware in the prior art to realize load balancing buffer control, and the expense of purchase hardware load equalizing equipment is saved for operator.
Description
Technical field
The present invention relates to the load-balancing method of load balancing field more particularly to internet copy packet, device and it is
System.
Background technology
With the rapid development of broadband interconnection cache business, the network construction of telecom operators is from traditional facilities network
The direction that network construction is changed into Users ' Need-oriented is developed.Various Web applications in Internet service, video is downloaded, end-to-end visit
Ask it is very big to bandwidth consumption, terminal user occupy most resources, it is necessary to find solve network bottleneck means.
Operator is to obtain a large amount of incremental benefits from the Internet, applications service, and internet caching is commonly used
(Cache) strategy disposes web cache (WebCache) equipment of the certain amount with caching function and right in former network node
Wait network-cachings (P2P cache) equipment, also required in China Telecom and China Mobile's specification at present by core layer or
Person's convergence-level deployment depth packet check (Deep Packet Inspection, DPI) light-dividing device is warm by HTTP and P2P contents
Point, which replicates, introduces local carrier network, realizes that local cache services nearby, to improve network bandwidth and data user rate.
But to handle DPI light splitting or Port Mirroring it is copied come message, and respond user service request, it is necessary to
Substantial amounts of content delivery network cache (CDN cache) system equipment is disposed to handle, how these copied next messages
Load balancing is diverted on these CDN cache system equipments, the problem of being in the urgent need to address.
Load balancing popular at present is using hardware load equalizing equipment (such as F5, RadWare hardware factory
Business), as shown in Figure 1, but program shortcoming is hardware load equalizing equipment somewhat expensive, versatility and autgmentability are bad.
The content of the invention
An embodiment of the present invention provides a kind of load-balancing method of message, apparatus and system, at least to solve related skill
Special hardware is needed in art come the problem of realizing load balancing buffer control.
According to one embodiment of present invention, a kind of load-balancing method of message is provided, including：
Load-balanced server receives the user's request message for replicating and being introduced into local carrier network；The load balancing
Server is by user's request message load balancing to corresponding Redirect Server.
Preferably, user's request message is replicated at least through one of in the following manner and introduced：DPI points of deep message detection
Soft exchange, local domain name server Local DNS accesses, policybased routing access, Port Mirroring access.
Preferably, the type of user's request message is at least one of：Hypertext transfer protocol HTTP, peer-to-peer network
Network P2P, local DNS.
Preferably, the load-balanced server services user's request message load balancing to corresponding redirect
Before device, further include:
User's request message is parsed, and according to the purpose IP address of user's request message or MAC
Set mark determines to need the user's request message for redirecting service in location and user's request message.
Preferably, according to the purpose IP address of user's request message or MAC Address and user's request message
In set mark determine to need the user's request message for redirecting service, including：
It, then please by the user when the purpose IP address in user's request message or MAC Address are the machine address
Message is sought according to protocol stack routing forwarding.
When the purpose IP address in user's request message or MAC Address are not the machine address, then by the user
Set mark is compared with preset value in request message, if matched, it is determined that user's request message is to need
User's request message of service is redirected, and is deposited into redirection buffering queue；If it does not match, by the use
Family request message abandons.
Preferably, the load-balanced server services user's request message load balancing to corresponding redirect
Device, including：The load-balanced server will need the user for redirecting service please according to predetermined load balancing
Message redirecting is sought to corresponding Redirect Server.
Preferably, the load-balanced server is multiple that each load-balanced server corresponds to different types of user
Request message.
Preferably, the Redirect Server is multiple that the load-balanced server is selected based at least one of
Corresponding Redirect Server：The service quality of Redirect Server, routing weights, balance policy, destination address hash situation.
Preferably, the load-balanced server services user's request message load balancing to corresponding redirect
After device, further include：The Redirect Server determines corresponding caching resource server according to user's request message,
And send redirection message to user；The user initiates according to the redirection message to corresponding caching resource server
User service is asked.
According to another embodiment of the present invention, a kind of load-balanced server is additionally provided, including：
Message capturing preprocessing module replicates the user's request message for being introduced into local carrier network for receiving；
Ask load balancing module：For by user's request message load balancing to corresponding Redirect Server.
Preferably, user's request message is replicated at least through one of in the following manner and introduced：DPI light splitting access, Local
DNS accesses, policybased routing access, Port Mirroring access.
Preferably, the type of user's request message is at least one of：HTTP、P2P、local DNS.
Preferably, the message capturing preprocessing module includes:Routing policy unit, for asking to report according to the user
Purpose IP address/MAC Address of text determines to need the user's request message for redirecting service；Packet parsing unit, is used for
Parsing needs to redirect user's request message of service, is further determined that and is loaded according to default filtering rule
Balanced user's request message；Request redirects unit, and report is asked for that will meet to redirect and be responsible for the balanced user
Text is sent to the request load balancing module.
Preferably, the request load balancing module includes:Load-balancing decision unit, for equal according to the load of configuration
Weighing apparatus strategy will need the user's request message for redirecting service to be redirected to corresponding Redirect Server；The load is equal
Weigh Dispatching Unit, for the distribution of user's request message.
Preferably, the request load balancing module includes:Heartbeat keep-alive unit, for the load-balanced server with
Between the Redirect Server TCP_CHECK messages send and receive and the Redirect Server can service state
Detection, heartbeat keepalive parameter configuration, Redirect Server address maintenance and can service statistic display；Balanced plan
Slightly administrative unit, for the load balancing configuration and issue and the startup and stopping of heartbeat keep-alive service.
Preferably, load-balancing decision unit is additionally operable to obtain load balancing configuration and Redirect Server address
Inventory and obtain the Redirect Server address list that can be serviced there from the heartbeat keep-alive unit, statistics is currently reset
To the disposable load of server, to improve or reduce the request amount of current Redirect Server.
According to still another embodiment of the invention, a kind of SiteServer LBS is additionally provided, including load described above
Equalization server and Redirect Server and caching resource server, wherein,
The Redirect Server, for according to user's request message from the load-balanced server, really
Fixed corresponding caching resource server, and send redirection message to user；
The caching resource server for receiving service request from the user, and provides a user corresponding request
Resource.
Preferably, the load-balanced server is multiple that each load-balanced server corresponds to different types of user
Request message.
Preferably, the Redirect Server is multiple that the load-balanced server is selected based at least one of
Corresponding Redirect Server：The service quality of Redirect Server, routing weights, balance policy, destination address hash situation.
Preferably, the load-balanced server is located at the Redirect Server in same subnet.
Preferably, the Redirect Server and the caching resource server are individually disposed or closed and set.
In embodiments of the present invention, the use for being introduced into local carrier network will be replicated by disposing load-balanced server
Family request message load balancing on Redirect Server, realizing that user redirects service function, meanwhile, save purchase for operator
Buy the expense of hardware load equalizing equipment.
Description of the drawings
Attached drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description does not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the hardware load equalizing frame schematic diagram according to correlation technique；
Fig. 2 is that load-balanced server according to embodiments of the present invention handles copy packet and the signal of load balancing frame
Figure；
Fig. 3 is load-balanced server load-balancing device access way schematic diagram according to embodiments of the present invention；
Fig. 4 is load-balanced server load balancing apparatus composition schematic diagram according to embodiments of the present invention；
Fig. 5 is the work flow diagram of load-balanced server load balancing apparatus according to embodiments of the present invention；
Fig. 6 is to carry out message capturing pretreatment process figure using server in the embodiment of the present invention；
Fig. 7 is the work flow diagram that request load-balancing function is realized in the embodiment of the present invention.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 2 is that load-balanced server according to embodiments of the present invention handles copy packet and the signal of load balancing frame
Figure.In the present embodiment, message capturing pretreatment and load balancing are realized by load-balanced server, the load-balanced server
It can be a kind of generic server, for example, can be any conventional PC generic server equipment, be typically deployed at operator room
Data network in, configure 10,000,000,000 optical fiber network card equipments, can have message input/output function.
In the present embodiment, for the no particular/special requirement of the configuration of load-balanced server equipment, for service bandwidth ratio
Larger node, for the smaller node of portfolio, can match moderate performance with the good network card equipment of option and installment performance
Network card equipment.
According to existing net networking actual conditions, load-balanced server receives message by the network interface of input code flow, the net
Card need not configure IP address, and the network interface of load-balanced server request load balancing output code flow can configure local area network
Section IP address, but require with cache server configuration in same subnet section.Meanwhile one group is configured on load-balanced server
Load balancing IP address white list exports for load balancing message.Correspondingly, phase same network segment is configured on cache server
IP address, for interface load equilibrium message.
In one embodiment, as shown in Fig. 2, load-balanced server receives the code stream that DPI light splitting comes, processing is passed through
Routing policy module, packet parsing module in copy packet mechanism filter and analyze code stream.
Due to that, according to the bandwidth difference entered to code stream, may there is multiple load balancing apparatus, phase in some usage scenarios
Ying Di, each load balancing apparatus set different load balancing Dispatching Unit.
Meanwhile in practical applications, the role that Redirect Server has difference in functionality divides the work, it is desirable that each load balancing clothes
Being engaged in required for device, the type of message of capture may be different, if any the processing of responsible HTTP message and load balancing, the responsible P2P having
Message capturing and load balancing, therefore for different load balancing demands, it is regular and negative that different packet filterings can be configured
Carry balance policy.Correspondingly, the packet filtering rule of each load-balanced server configuration and load balancing can not also
Equally.
The load balancing apparatus after the message for determining to receive meet demand, forwards the message according to preset strategy
To Redirect Server.
Similarly, due to the limitation of each Redirect Server process bandwidth ability, the system is also required to dispose multiple heavy
Orientation server carrys out the message of balanced reception load-balanced server output, and further dissection process is done to message.
In an embodiment of the present invention, as shown in figure 3, the load-balanced server receives the DPI light splitting sent in network
Code stream or the domain name request message introduced by LocalDNS.Wherein, type of message is typically all based on TCP UDP lattice
The message of formula, such as http protocol message, P2P messages and DNS request message.
The embodiment of the present invention additionally provides a kind of load-balanced server processing copy packet and load balancing apparatus, such as schemes
Shown in 4.Described device includes：Message capturing preprocessing module 41 and request load balancing module 42.
The message capturing preprocessing module includes：Routing policy unit 411, packet parsing unit 412 and request are reset
To unit 413.Message capturing preprocessing module is realized by performing configuration-direct and setting the parameters such as packet filtering pattern to entering
Control to code stream, capture instruction include beginning, end etc..Packet filtering pattern includes：Type of message, message characteristic value, report
Text load (payload) offset and the configuration of message buffering queue.
The routing policy unit 411, for handling copy packet module in operating system nucleus protocol stack netfilter
Routing judgement is carried out to message in module.The kernel module is operated at kernel protocol stack PRE_ROUTING entrance chain chains.
Then after routing judges, message enters kernel protocol stack processing.
The packet parsing unit 412, i.e. HTTP/P2P GET kernel modules, for link layer message type and service
Type of message is judged and is analyzed that the message for meeting load balancing draining conditions (NF_ACCEPT) enters kernel protocol stack
The processing of load balancing distribution flow, it is ineligible that (NF_DROP) is then abandoned by packet filtering unit.
The request redirects unit 413, for the request of cache resources to be directed to cache server, parses significant figure
According to message, and (such as http/302) redirection message for constructing response is sent to user, and the redirection of user's request is realized with this
Guiding.
In one embodiment, message capturing preprocessing module 41 is responsible for receiving code stream, and routing policy unit 411 determines to catch
Obtain message purpose IP address or target MAC (Media Access Control) address to determine whether for local IP address, the machine, then walk protocol stack road in this way
By forwarding process, if not being the machine, then the message of this kind of capture is set packet parsing label by packet parsing unit 412, and right
Message load (payload) is deviated by default bias amount and preset value is compared, and enters to buffer team if Rule of judgment is met
Row, message enter request and redirect unit 413 to handle.It realizes to entering load balancing control and shunting processing to message.
Packet loss is handled if Rule of judgment is unsatisfactory for.Request redirects unit construction effective data packets, according to available slow
List server and respective resources information are deposited, selects available cache server, user's request is redirected to cache server
Above, it is necessary to which explanation, request redirection unit only change the associated resource content in HTTP message, be incorporated to load balancing caching
Queue.Message is still output to cache server by load balancing module.
The request load balancing module 42 includes：Load-balancing decision unit 421, load balancing Dispatching Unit 422,
The policy management element 423 that weighs and heartbeat keep-alive unit 424.
The load-balancing decision unit 421 is clear for obtaining load balancing configuration and Redirect Server address
The Redirect Server address list that can be serviced is obtained singly and there from heartbeat keep-alive unit.Load-balancing decision unit is also
The disposable load of the current Redirect Server of load statistics, for improving or reducing the request of current Redirect Server equipment
Amount.
The load balancing Dispatching Unit 422, for the distribution of load balancing message.
The balance policy administrative unit 423, for load balancing configuration distributing and the startup of heartbeat keep-alive service
And stopping.
The heartbeat keep-alive unit 424, for TCP_CHECK messages between load-balanced server and Redirect Server
Send and receive, Redirect Server can service state detection, heartbeat keepalive parameter configuration, Redirect Server address dimension
Shield and can service statistic display.
The embodiment of the present invention additionally provides a kind of workflow for handling copy packet and software load balancer, such as schemes
Shown in 5, including following flow：
First, user passes through the operation of front end, trigger request to load-balanced server message capturing preprocessing module；
Secondly, request message processing module enters processing copy packet flow inside load-balanced server, by operating
System kernel routing pretreatment (PRE_ROUTING) triggering packet parsing module checks the link layer message class of code stream in buffer area
Type judges link layer message type to be sent to the machine message (PACKET_HOST), if meeting message capturing condition, directly
Request redirection module is sent to continue with, if other host messages (PACKET_OTHERHOST), is then arranged to this chain
Road floor type of message (PACKET_HOST), text of delivering newspaper are continued with to upper level applications.
Further, whether load-balanced server packet parsing unit judges application layer services type of message is HTTP/
P2P messages such as meet condition, then into next step flow processing.
Further, it is clear to redirect the currently available Redirect Server address of unit acquisition for load-balanced server request
It is single；
Further, load-balanced server request redirects unit according to the address of service got and services URL, to
It initiates request and redirects calling in Redirect Server side；
Further, load-balanced server is by the service quality of Redirect Server side, routing weights, balance policy with
And destination address hash situation, load balancing selection is carried out, such as whether Redirect Server currently can use, if time-out
Etc. types, call load balancing shunting interface, message is sent to multiple Redirect Servers, while load balancing is called to count
Interface is written in statistics；
Further, load balancing service request handling result is returned；
In this embodiment, the main purpose of the load-balanced server update statistical quality of service is to count automatically
Calculate the disposable load of current service, that is, improve or reduce the current request amount for redirecting service equipment, when finding unavailable and
When rejected from current Redirect Server list.
In practical applications, the realization process of the embodiment of the present invention can include processing copy packet flow and load balancing
Two aspects of workflow, are described individually below.
Fig. 6 is to carry out message capturing pretreatment process figure using server in the embodiment of the present invention, as shown in fig. 6, including
Following steps：
The load-balanced server load balancing apparatus is accessed in network, DPI is met wherein entering to network interface by step S601
Code stream or DNS messages.
The DPI light-dividing devices are deployed in network or introduce load balancing code by DNS modes by step S602
Stream.
Step S603, the pre- preprocessing module of load-balanced server message capturing judge the load-balanced server by chain
Road floor message target MAC (Media Access Control) address or purpose IP address are not that the message of the machine is then delivered newspaper the processing of literary resolution unit.
Step S604, the packet parsing unit in the pre- preprocessing module of message capturing parse message, by predetermined
Judge to meet predetermined value setting after quantum byte offset, be unsatisfactory for the packet loss processing of prerequisite.As protocol type is expired
Sufficient TCP or UDP and message load (payload) then send for HTTP, P2P and LocalDNS message asks to redirect at unit
Reason.
Step S605, the request in the pre- preprocessing module of message capturing redirect unit construction effective data packets, according to can
Redirect Server IP address list and respective resources information, select available Redirect Server, and user is asked weight
Oriented load is balanced on cache server.
In the embodiment, in order to handle copy packet function, additionally provide startup and unload HTTP/P2P kernel modules
Function and the command function for starting and stopping message crawl.The shell scripts that can be provided by linux system are completed.
In the present embodiment, Redirect Server is individually disposed, and can also be closed and be set with cache server, according to type of message
And functional role is different, can configure the Redirect Server of difference in functionality.
Fig. 7 is the work flow diagram that request load-balancing function is realized in the embodiment of the present invention, as shown in fig. 7, comprises with
Lower step：
Step S711 accesses the Redirect Server in network, it is ensured that the equipment and load-balancing device are same
In a subnet, network interworking is realized.
Step S712, user send HTTP/P2P request messages, and the load-balanced server receives DPI light splitting/DNS please
Seek message.
Step S713, the outgoing message of the Redirect Server access network interface balancing received load server redirect
Server picks out network interface and returns to user service response message.
Step S714 configures the load balancing and Redirect Server address list and heartbeat keepalive parameter.
Step S715, the load-balanced server are HTTP/P2P for type of message for application layer packet filtering,
Load balancing module is sent to handle, on the contrary then discard processing.
Step S716, the load-balanced server send request load balancing module to the message for meeting load balancing condition
Forwarding.
Step S717, the request load balancing module obtain load balancing, Redirect Server address list, power
Weight and Redirect Server can service state to code stream carry out load balancing output.
In the present embodiment, in order to manage request load-balancing function, the function of configuration load balance policy is additionally provided,
And start and stop the function of heartbeat keep-alive service.
The embodiment of the present invention additionally provides a kind of storage medium.The storage medium can be configured to storage for performing
The program code of process step in above-described embodiment：
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
The various media that can store program code such as CD.Specific example in the present embodiment may be referred to above-described embodiment and optional
Example described in embodiment, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Performed in the storage device by computing device, and in some cases, can be performed with the order being different from herein shown in
The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (22)
1. a kind of load-balancing method of message, which is characterized in that including：
Load-balanced server receives the user's request message for replicating and being introduced into local carrier network；
The load-balanced server is by user's request message load balancing to corresponding Redirect Server.
2. according to the method described in claim 1, it is characterized in that, wherein, user's request message is at least through with lower section
One of formula, which replicates, to be introduced：
Deep message detection DPI light splitting access, local domain name server Local DNS accesses, policybased routing access, Port Mirroring
Access.
3. according to the method described in claim 1, it is characterized in that, wherein, the type of user's request message be with down toward
It is one of few：Hypertext transfer protocol HTTP, Peer-to-Peer Network P2P, local DNS.
4. according to the method described in claim 1, it is characterized in that, the load-balanced server is by user's request message
Before load balancing to corresponding Redirect Server, further include:
User's request message is parsed, and according to the purpose IP address or MAC Address of user's request message, with
And set mark determines to need the user's request message for redirecting service in user's request message.
5. according to the method described in claim 4, it is characterized in that, according to the purpose IP address of user's request message or
Set mark determines to need the user for redirecting service ask in MAC Address and user's request message
Message, including：
When the purpose IP address in user's request message or MAC Address are the machine address, then the user is asked to report
Text is according to protocol stack routing forwarding.
6. it according to the method described in claim 5, it is characterized in that, further includes：
When the purpose IP address in user's request message or MAC Address are not the machine address, then the user is asked
Set mark is with preset value compared in message, if matched, it is determined that user's request message be need into
Row redirects user's request message of service, and is deposited into redirection buffering queue；It if it does not match, please by the user
Ask packet loss.
7. according to the method described in claim 1, it is characterized in that, the load-balanced server is by user's request message
Load balancing to corresponding Redirect Server, including：
The load-balanced server will need the user for redirecting service to ask report according to predetermined load balancing
Text is redirected to corresponding Redirect Server.
8. according to the method described in claim 1, it is characterized in that, the load-balanced server is multiple, each load is equal
Weighing apparatus server corresponds to different types of user's request message.
9. according to the method described in claim 1, it is characterized in that, the Redirect Server is multiple, the load balancing
Server is based at least one of and selects corresponding Redirect Server：The service quality of Redirect Server, routing weights,
Balance policy, destination address hash situation.
10. according to the method described in claim 1, it is characterized in that, the user is asked to report by the load-balanced server
After literary load balancing to corresponding Redirect Server, further include：
The Redirect Server determines corresponding caching resource server, and is sent out to user according to user's request message
Send redirection message；
User initiates user service request according to the redirection message to corresponding caching resource server.
11. a kind of load-balanced server, which is characterized in that including：
Message capturing preprocessing module replicates the user's request message for being introduced into local carrier network for receiving；
Ask load balancing module：For by user's request message load balancing to corresponding Redirect Server.
12. load-balanced server according to claim 11, which is characterized in that user's request message at least through
One of in the following manner, which replicates, to be introduced：
Deep message detection DPI light splitting access, local domain name server Local DNS accesses, policybased routing access, Port Mirroring
Access.
13. load-balanced server according to claim 11, which is characterized in that the type of user's request message is
At least one of：Hypertext transfer protocol HTTP, Peer-to-Peer Network P2P, local DNS.
14. load-balanced server according to claim 11, which is characterized in that the message capturing preprocessing module bag
It includes:
Routing policy unit determines to need to carry out weight for the purpose IP address according to user's request message or MAC Address
Orient user's request message of service；
Packet parsing unit needs the user's request message for redirecting service, according to default filtering rule for parsing
Further determine that the user's request message for needing to carry out load balancing；
Request redirects unit, and the request is sent to for will meet to redirect and be responsible for balanced user's request message
Load balancing module.
15. load-balanced server according to claim 11, which is characterized in that the request load balancing module bag
It includes:
Load-balancing decision unit, for according to the load balancing of configuration the user for redirecting service will be needed to ask
Message redirecting is to corresponding Redirect Server；
Load balancing Dispatching Unit, for the distribution of user's request message.
16. load-balanced server according to claim 15, which is characterized in that the request load balancing module bag
It includes:
Heartbeat keep-alive unit, for TCP_CHECK messages between the load-balanced server and the Redirect Server
Send and receive and the Redirect Server can service state detection, heartbeat keepalive parameter configuration, Redirect Server
Address maintenance and can service statistic display；
Balance policy administrative unit, for the load balancing configuration and issue and the startup of heartbeat keep-alive service
And stopping.
17. load-balanced server according to claim 16, which is characterized in that load-balancing decision unit is additionally operable to
It obtains load balancing configuration and Redirect Server address list and obtains and can take from heartbeat keep-alive unit there
The Redirect Server address list of business counts the disposable load of current Redirect Server, is currently reset with improving or reducing
To the request amount of server.
18. a kind of SiteServer LBS, which is characterized in that including claim 11-17 any one of them load balancing services
Device and Redirect Server and caching resource server, wherein,
The Redirect Server, for according to user's request message from the load-balanced server, determining phase
The caching resource server answered, and send redirection message to user；
The caching resource server for receiving service request from the user, and provides a user corresponding request resource.
19. SiteServer LBS according to claim 18, which is characterized in that the load-balanced server to be multiple,
Each load-balanced server corresponds to different types of user's request message.
20. SiteServer LBS according to claim 18, which is characterized in that the Redirect Server is multiple, institute
It states load-balanced server and is based on the corresponding Redirect Server of at least one of selection：The Service Quality of Redirect Server
Amount, routing weights, balance policy, destination address hash situation.
21. SiteServer LBS according to claim 18, which is characterized in that the load-balanced server with it is described heavy
Orientation server is located in same subnet.
22. SiteServer LBS according to claim 18, which is characterized in that the Redirect Server and the resource
Cache server is individually disposed or closed and sets.
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| PCT/CN2017/113481 WO2018099384A1 (en) | 2016-11-29 | 2017-11-29 | Packet load balancing method, apparatus and system |
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