CN110198359A - A kind of load-balancing method and device - Google Patents
A kind of load-balancing method and device Download PDFInfo
- Publication number
- CN110198359A CN110198359A CN201910610104.7A CN201910610104A CN110198359A CN 110198359 A CN110198359 A CN 110198359A CN 201910610104 A CN201910610104 A CN 201910610104A CN 110198359 A CN110198359 A CN 110198359A
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- Prior art keywords
- server
- state
- data
- load
- client
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Classifications
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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
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
Abstract
The present invention provides a kind of load-balancing method and device, method is the following steps are included: A. is received and cached to the data of client；B. the state of each server is obtained；C. it is calculated according to the state of the server in step B, optimal server is selected to carry out data processing；D. the data distribution of the client cached in step A is given to optimal server.The invention has the advantages that: can better equalization server working efficiency, the case where avoiding certain inefficient server process data；The case where continuing with data can be overloaded to avoid CPU height；The case where continuing with data can be overloaded to avoid memory height.
Description
Technical field
The invention belongs to Communication Control Technology fields, more particularly, to a kind of load-balancing method and device.
Background technique
With the development of internet, service traffics are increasing and service logic also becomes increasingly complex, single machine
Performance issue and single-point problem, which have highlighted, to be come out, it is therefore desirable to which more machines carry out the horizontal extension of performance and avoid list
Point failure.But how will be particularly important above the traffic distribution of different users to different servers.By negative
Carrying balancing technique may be implemented the distribution of flow, and basic model is as shown in Figure 1.
The essence of load balancing apparatus is that reasonable forwarding client traffic is handled to back-end server.
The algorithm of load balancing includes polling method, randomized, source address Hash method, weighted polling method, Weighted random at present
Method and Smallest connection method.Client traffic can be distributed to server by these algorithms.
Polling method: data successively are sent to server.
Weighted polling method: on the basis of polling method, weight is set to server, the big server process of weight is more
Data.
Smallest connection method: the processing least server of task quantity carries out processing data.
Source address Hash method: being a numerical value being calculated by hash function according to the IP address for obtaining client,
Modulo operation is carried out with size of the numerical value to server list, obtained result is the sequence that customer side will access server
Number.
But the shortcomings that these algorithms, is, does not account for sub-health state when server operation.Sub-health state
It is the very time-consuming operation of server process or the state that memory exhausts.When server is in sub-health state, it is also possible to locate
The managing client of the task causes processing data performance slack-off.
Summary of the invention
In view of this, the present invention is directed to propose a kind of load-balancing method and device, with the deficiency that solves the above problems
Place.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of first aspect present invention provides a kind of load-balancing method, comprising the following steps:
A. the data of client are received and is cached；
B. the state of each server is obtained；
C. it is calculated according to the state of the server in step B, optimal server is selected to carry out data processing；
D. the data distribution of the client cached in step A is given to optimal server.
Further, the calculation formula of server state is in the step C,
Value=ServerStatus* (75*CPUStatus+25*MemoryStatus),
Wherein, ServerStatus:1 or 0, when server can be used, being worth is 1；When server delay machine, being worth is 0；When
When CPU usage amount 98% or memory usage 98%, being worth is 0；
CPUStatus:100* (1-cupuesed), wherein cupuesed is that current server cup uses percentage；
MemoryStatus:100* (1-memoryused), wherein memoryused is that current server memory uses hundred
Divide ratio.
In addition, the embodiment of second aspect of the present invention additionally provides a kind of load balancing apparatus, including message queue module,
Management module, block of state and distribution module,
The message queue module is used to receive the data of client, carries out the caching of data,
The block of state is used to carry out real-time, interactive with server end, obtains the state of each server,
The state for the server that the management module is provided according to block of state is calculated, select optimal server into
Row data processing, and the information in optimal service device information and message queue is sent to distribution module,
The distribution module is for sending the message in message queue module in specific server.
Compared with the existing technology, a kind of load-balancing method and device of the present invention have the advantage that
A kind of load-balancing method of the present invention can preferably equalization server working efficiency, avoid certain
The case where inefficient server process data；The case where continuing with data can be overloaded to avoid CPU height；It can be to avoid
The case where memory height overload continues with data.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the basic model structure schematic diagram of load balancing in the prior art；
Fig. 2 is load balancing apparatus structural schematic diagram described in the embodiment of the present invention；
Fig. 3 is load-balancing method flow chart described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The embodiment of first aspect present invention provides a kind of load-balancing method, comprising the following steps:
A. the data of client are received and is cached；
B. the state of each server is obtained；
C. it is calculated according to the state of the server in step B, optimal server is selected to carry out data processing；
D. the data distribution of the client cached in step A is given to optimal server.
The calculation formula of server state is in the step C,
Value=ServerStatus* (75*CPUStatus+25*MemoryStatus),
Value indicates server state value, and bigger, the efficiency of server process is higher, and server process data will
It is faster,
Wherein, ServerStatus:1 or 0, when server can be used, being worth is 1；When server delay machine, being worth is 0；When
When CPU usage amount 98% or memory usage 98%, being worth is 0；
CPUStatus:100* (1-cupuesed), wherein cupuesed is that current server cup uses percentage；
MemoryStatus:100* (1-memoryused), wherein memoryused is that current server memory uses hundred
Divide ratio.
In addition, as shown in Fig. 2, the embodiment of second aspect of the present invention additionally provides a kind of load balancing apparatus, including disappear
Queue module, management module, block of state and distribution module are ceased,
The message queue module is used to receive the data of client, carries out the caching of data,
The block of state is used to carry out real-time, interactive with server end, obtains the state of each server, server
State includes CPU usage, memory usage.
The state for the server that the management module is provided according to block of state is calculated, select optimal server into
Row data processing, and the information in optimal service device information and message queue is sent to distribution module,
The distribution module is for sending the message in message queue module in specific server.
The course of work of the present embodiment is as follows:
As shown in figure 3, the block of state will be interacted with back-end server when load balancing works, clothes are obtained
The state of device of being engaged in and the specifying information of server, and this result is fed back into management module, the mistake that this cycle executes
Journey, gap periods 500ms；
If there are the data of client at this time, it is cached in message queue；
Optimal server is obtained by calculation in the management module, by the data in this server info and message queue
It is sent to distribution module together.
The distribution module packaged data gives data distribution to optimal server.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of load-balancing method, it is characterised in that the following steps are included:
A. the data of client are received and is cached；
B. the state of each server is obtained；
C. it is calculated according to the state of the server in step B, optimal server is selected to carry out data processing；
D. the data distribution of the client cached in step A is given to optimal server.
2. a kind of load-balancing method according to claim 1, it is characterised in that: server state in the step C
Calculation formula is,
Value=ServerStatus* (75*CPUStatus+25*MemoryStatus),
Wherein, ServerStatus 1or0, when server can be used, being worth is 1；When server delay machine, being worth is 0；When CPU makes
When dosage 98% or memory usage 98%, being worth is 0；
CPUStatus is 100* (1-cupuesed), wherein cupuesed is that current server cup uses percentage；
MemoryStatus is 100* (1-memoryused), and wherein memoryused is that current server memory uses percentage
Than.
3. a kind of load-balancing method, it is characterised in that: including message queue module, management module, block of state and distribution mould
Block,
The message queue module is used to receive the data of client, carries out the caching of data,
The block of state is used to carry out real-time, interactive with server end, obtains the state of each server,
The state for the server that the management module is provided according to block of state is calculated, and optimal server is selected to be counted
It is sent to distribution module according to processing, and by the information in optimal service device information and message queue,
The distribution module is for sending the message in message queue module in specific server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910610104.7A CN110198359A (en) | 2019-07-08 | 2019-07-08 | A kind of load-balancing method and device |
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| CN201910610104.7A CN110198359A (en) | 2019-07-08 | 2019-07-08 | A kind of load-balancing method and device |
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Family
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| CN201910610104.7A Pending CN110198359A (en) | 2019-07-08 | 2019-07-08 | A kind of load-balancing method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866395A (en) * | 2020-11-18 | 2021-05-28 | 统信软件技术有限公司 | Service request processing system and method and computing device |
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Application publication date: 20190903 |