CN113656383A - System for improving database availability - Google Patents
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/217—Database tuning
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/242—Query formulation
- G06F16/2433—Query languages
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
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Abstract
The invention relates to a system for improving the availability of a database, which comprises a middleware, a Haproxy server, a Proxy agent and a database; the middleware receives a data access request of a client; the method comprises the following steps that a Proxy server receives a data access request and forwards the data access request to a Proxy agent; the Proxy analyzes the data and distributes the data to the database according to the analysis result, judges the analysis result in the database and obtains a result set according to the judgment result; the database stores the analysis result; the Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server receives a data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to mount the middleware so as to ensure that database service is provided. The invention adopts the middleware to reduce the code complexity, adjust the data access strategy on line, use the HA proxy, improve the HA function, do not depend on the code and can be changed on line.
Description
Technical Field
The invention belongs to the technical field of databases, and particularly relates to a system for improving database availability.
Background
A database is a repository where data is stored. The storage space is large, and millions, millions and hundreds of millions of data can be stored. However, the database does not store data randomly, and has certain rules, otherwise, the query efficiency is low. The world today is an internet world that is full of data, which is flooded with large amounts of data. I.e. the internet world is the data world. The sources of data are many, such as travel records, consumption records, web pages viewed, messages sent, and so forth. In addition to text type data, images, music, and sounds are data.
With the increase of company business volume, databases in different banks and tables are more and more, and if the application directly accesses the databases, potential safety hazards exist. In the related art, an integrated middleware is mainly adopted to access a database or an integrated sub-database and sub-table code is adopted to connect the database, but the existing middleware code is complex, does not utilize maintenance and is not beneficial to centralized management.
Disclosure of Invention
In view of the above, the present invention provides a system for improving database availability to solve the problem that the existing middleware code is complex and not conducive to maintenance.
In order to achieve the purpose, the invention adopts the following technical scheme: a system for improving database availability, comprising: the system comprises a middleware, a Haproxy server, a Proxy agent and a database, wherein the middleware, the Haproxy server, the Proxy agent and the database are connected in sequence;
the middleware is used for receiving a data access request of the client;
the Haproxy server is used for receiving the data access request and forwarding the data access request to the Proxy agent;
the Proxy agent is used for analyzing the data in the data access request, distributing the data to the database according to the analysis result, judging the analysis result in the database, and acquiring a result set according to the judgment result;
the database is used for storing analysis results;
the Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server is used for receiving the data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to the mounting middleware.
Further, after the failure of the Haproxy master server is recovered, a signal is sent to the Haproxy slave server and is used as a standby server.
Further, the database comprises a plurality of score databases; each sub database comprises a master database and a slave database;
the main database is used for storing write statements;
the slave database is used for storing read statements.
Further, analyzing the data in the data access request and distributing the data to a database according to the analysis result, including:
the Proxy agent receives the data access request, and performs lexical analysis, syntactic analysis and sentence splitting on the sentences in the data to obtain read sentences and write sentences;
distributing the write statement to a master database;
the read statement is distributed to the slave database.
Further, the determining the analysis result in the database and obtaining a result set according to the determination result includes:
when the writing statement or the reading statement is a query statement, the Proxy agent judges whether a master database and a slave database have time delay according to a preset sub-database sub-table access rule, if the time delay does not exist, the Proxy agent forwards the query statement to the slave database for query, and a result set is obtained;
and when the writing statement or the reading statement is a DML statement, the Proxy agent forwards the DML statement to a table corresponding to the DML statement according to a preset sub-library and sub-table access rule.
Further, the database receives and stores the client information registered by the client.
Further, before receiving the data access request, the Proxy agent further includes:
and carrying out safety access verification on the Haproxy server, if the Haproxy server passes the verification, continuing to access the database, and if the Haproxy server does not pass the verification, ending the flow.
Further, the result set is fed back to the client according to the original path.
Further, the Proxy agent includes a plurality of Proxy agents.
By adopting the technical scheme, the invention can achieve the following beneficial effects:
the invention provides a system for improving the availability of a database, which comprises a middleware, a Haproxy server, a Proxy agent and a database; the middleware receives a data access request of a client; the method comprises the following steps that a Proxy server receives a data access request and forwards the data access request to a Proxy agent; the Proxy analyzes the data and distributes the data to the database according to the analysis result, judges the analysis result in the database and obtains a result set according to the judgment result; the database stores the analysis result; the Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server receives a data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to mount the middleware so as to ensure that database service is provided. The invention adopts the middleware to reduce the code complexity, adjust the data access strategy on line, use the HA proxy, improve the HA function, do not depend on the code and can be changed on line.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a system for improving database availability according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
A specific system for improving the availability of a database provided in the embodiments of the present application is described below with reference to the accompanying drawings.
As shown in fig. 1, the system for improving the availability of a database provided in the embodiment of the present application includes: the system comprises a middleware, a Haproxy server, a Proxy agent and a database, wherein the middleware, the Haproxy server, the Proxy agent and the database are connected in sequence;
the middleware is used for receiving a data access request of a client;
the Haproxy server is used for receiving the data access request and forwarding the data access request to a Proxy agent;
the Proxy agent is used for analyzing the data in the data access request, distributing the data to a database according to the analysis result, judging the analysis result in the database, and acquiring a result set according to the judgment result;
the database is used for storing analysis results;
the Haproxy server comprises a Haproxy main server and a Haproxy slave server, a virtual IP address mounting middleware of the Haproxy main server is used for receiving a data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to the mounting middleware so as to ensure that database service is provided.
The working principle of the system for improving the availability of the database is as follows: the Hasproxy server receives the application cache statements by accessing the middleware VIP, performs lexical analysis, syntactic analysis and statement splitting on the application statements, opens the global transaction lock, distributes the statements to the database, acquires a result set, collects and orders the statements and returns the result set to the application, and ends the branch transaction lock. The Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server is used for receiving the data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to the mounting middleware so as to ensure that database service is provided. For example: the virtual IP address of the middleware VIP is 192.168.0.100, which is first appended to 192.168.0.99 and 192.168.0.98, where 192.168.0.100 ═ 192.168.0.99 is the primary address. When 192.168.0.99 hangs up, the middleware VIP switches 192.168.0.100 ═ 192.168.0.98, and the code does not need to be adjusted throughout the process. The whole system is ensured to continuously access the database, the function of the Haproxy server is improved, and the usability of the database is improved.
The application server adopts the integrated middleware, the database is accessed through the rules of the sub-database and the sub-table, and the statistical task can be processed by the middleware, so that the investment of resources can be reduced, and the effects of cost reduction and efficiency improvement are achieved.
The Proxy agent adopts Sharding Proxy, and Sharding-Proxy is distributed database middleware.
Preferably, the Proxy agent includes a plurality of Proxy agents.
It is understood that the Sharding Proxy includes a plurality, and if the Sharding Proxy is two, the receiving can be performed according to the number of sentences, for example, according to the odd number and the even number of the sentences. Or it can also be set that one sharing Proxy can receive a preset number of sentences, and when a sufficient number of sentences are received, the next sharing Proxy continues to receive.
In some embodiments, after the failure of the Haproxy master server is recovered, a signal is sent to the Haproxy slave server and the Haproxy slave server is used as a standby server.
It can be understood that when the Haproxy master server is automatically restarted and sent with a heartbeat packet after the restart, the Haproxy slave server proves to be normally operated, but the Haproxy slave server still operates continuously, and the Haproxy master server is used as a standby.
In some embodiments, the database comprises a plurality of score databases; each sub database comprises a master database and a slave database;
the main database is used for storing write statements;
the slave database is used for storing read statements.
It will be appreciated that the databases are all of the same type of database, may all be mysql databases or may all be oracle databases.
In some embodiments, analyzing the data in the data access request and distributing the data to a database according to the analysis result includes:
the Proxy agent receives the data access request, and performs lexical analysis, syntactic analysis and sentence splitting on the sentences in the data to obtain read sentences and write sentences;
distributing the write statement to a master database;
the read statement is distributed to the slave database.
Specifically, the Proxy agent receives the application cache statement, performs lexical analysis, syntactic analysis and statement splitting on the application cache statement, opens a global transaction lock, and distributes the statement to the database; wherein, the writing statement is distributed to the master database, and the reading statement is distributed to the slave database.
Preferably, the determining the analysis result in the database and obtaining the result set according to the determination result includes:
when the writing statement or the reading statement is a query statement, the Proxy agent judges whether a master database and a slave database have time delay according to a preset sub-database sub-table access rule, if the time delay does not exist, the Proxy agent forwards the query statement to the slave database for query, and a result set is obtained;
and when the writing statement or the reading statement is a DML statement, the Proxy agent forwards the DML statement to a table corresponding to the DML statement according to a preset sub-library and sub-table access rule.
Specifically, after the read statement and the write statement are stored in the database, judgment is carried out, whether the master database and the slave database have time delay or not is judged according to preset sub-database and sub-table access rules, and if the time delay does not exist, the query statement is forwarded to the slave database for query, so that a result set is obtained; the decision from the database prevents delay effects.
And when the writing statement or the reading statement is a DML statement, the Proxy agent forwards the DML statement to a table corresponding to the DML statement according to a preset sub-base sub-table access rule, wherein the table is a financial table. And then the Sharding Proxy acquires a result set, collects and orders the result set, returns the result set to the application and ends the branch transaction lock.
Preferably, the database receives and stores client information registered by the client before the whole system is operated.
Preferably, before receiving the data access request, the Proxy agent further includes:
and carrying out safety access verification on the Haproxy server, if the Haproxy server passes the verification, continuing to access the database, and if the Haproxy server does not pass the verification, ending the flow.
It can be understood that the database middleware server shading Proxy N performs a simple security access verification for the access from the HA, verifies the user information and the object name, and continues to access the database.
Preferably, the result set is fed back to the client according to the original path.
In summary, the present invention provides a system for improving database availability, which includes a middleware, a Haproxy server, a Proxy agent and a database; the middleware receives a data access request of a client; the method comprises the following steps that a Proxy server receives a data access request and forwards the data access request to a Proxy agent; the Proxy analyzes the data and distributes the data to the database according to the analysis result, judges the analysis result in the database and obtains a result set according to the judgment result; the database stores the analysis result; the Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server receives a data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to mount the middleware so as to ensure that database service is provided. The invention adopts the middleware to reduce the code complexity, adjust the data access strategy on line, use the HA proxy, improve the HA function, do not depend on the code and can be changed on line. In addition, the application can also provide a white list function to ensure safe access; and the load balance of database-level connection can be realized, and in addition, the horizontal expansion can be realized.
It is to be understood that the system embodiments provided above correspond to the apparatus embodiments described above, and the corresponding specific contents may be referred to each other, which is not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a system, apparatus, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of systems, devices (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction system which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A system for improving database availability, comprising: the system comprises a middleware, a Haproxy server, a Proxy agent and a database, wherein the middleware, the Haproxy server, the Proxy agent and the database are connected in sequence;
the middleware is used for receiving a data access request of the client;
the Haproxy server is used for receiving the data access request and forwarding the data access request to the Proxy agent;
the Proxy agent is used for analyzing the data in the data access request, distributing the data to the database according to the analysis result, judging the analysis result in the database, and acquiring a result set according to the judgment result;
the database is used for storing analysis results;
the Haproxy server comprises a Haproxy main server and a Haproxy slave server, the virtual IP address mounting middleware of the Haproxy main server is used for receiving the data access request sent by the middleware, and when the Haproxy main server fails, the virtual IP address of the Haproxy slave server is shifted to the mounting middleware.
2. The system of claim 1,
and when the failure of the Haproxy master server is recovered, sending a signal to the Haproxy slave server and using the Haproxy slave server as a standby server.
3. The system of claim 1, wherein the database comprises a plurality of component databases; each sub database comprises a master database and a slave database;
the main database is used for storing write statements;
the slave database is used for storing read statements.
4. The system of claim 3, wherein analyzing the data in the data access request and distributing the data to a database according to the analysis result comprises:
the Proxy agent receives the data access request, and performs lexical analysis, syntactic analysis and sentence splitting on sentences in the data to obtain read sentences and write sentences;
distributing the write statement to a master database;
the read statement is distributed to the slave database.
5. The system of claim 4, wherein the determining the analysis results in the database and obtaining the result set according to the determination results comprises:
when the writing statement or the reading statement is a query statement, the Proxy agent judges whether a master database and a slave database have time delay according to a preset sub-database sub-table access rule, if the time delay does not exist, the Proxy agent forwards the query statement to the slave database for query, and a result set is obtained;
and when the writing statement or the reading statement is a DML statement, the Proxy agent forwards the DML statement to a table corresponding to the DML statement according to a preset sub-library and sub-table access rule.
6. The system according to any one of claims 1 to 5,
and the database receives and stores the client information registered by the client.
7. The system of claim 6, wherein the Proxy agent, prior to receiving the data access request, further comprises:
and carrying out safety access verification on the Haproxy server, if the Haproxy server passes the verification, continuing to access the database, and if the Haproxy server does not pass the verification, ending the flow.
8. The system of claim 6,
and feeding the result set back to the client according to the original path.
9. The system of claim 6,
the Proxy agent includes a plurality of Proxy agents.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115794769A (en) * | 2022-10-09 | 2023-03-14 | 云和恩墨(北京)信息技术有限公司 | Method for managing high-availability database, electronic device and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622427A (en) * | 2012-02-27 | 2012-08-01 | 杭州闪亮科技有限公司 | Method and system for read-write splitting database |
| WO2018113484A1 (en) * | 2016-12-22 | 2018-06-28 | 华为技术有限公司 | Method and apparatus for recovering multi-replica data |
| CN111708560A (en) * | 2020-06-17 | 2020-09-25 | 云和恩墨(北京)信息技术有限公司 | Automatic deployment method and device of database high-availability management system |
| CN112492022A (en) * | 2020-11-25 | 2021-03-12 | 上海中通吉网络技术有限公司 | Cluster, method, system and storage medium for improving database availability |
-
2021
- 2021-08-31 CN CN202111014940.2A patent/CN113656383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622427A (en) * | 2012-02-27 | 2012-08-01 | 杭州闪亮科技有限公司 | Method and system for read-write splitting database |
| WO2018113484A1 (en) * | 2016-12-22 | 2018-06-28 | 华为技术有限公司 | Method and apparatus for recovering multi-replica data |
| CN111708560A (en) * | 2020-06-17 | 2020-09-25 | 云和恩墨(北京)信息技术有限公司 | Automatic deployment method and device of database high-availability management system |
| CN112492022A (en) * | 2020-11-25 | 2021-03-12 | 上海中通吉网络技术有限公司 | Cluster, method, system and storage medium for improving database availability |
Non-Patent Citations (3)
| Title |
|---|
| IT噩梦: "sharding-proxy整合Haproxy实现高可用", pages 1 - 5, Retrieved from the Internet <URL:https://blog.csdn.net/qq_37362891/article/details/107559801> * |
| SHARDINGSPHERE: "揭秘Sharding-Proxy——面向DBA的数据库中间层", pages 1 - 12, Retrieved from the Internet <URL:https://zhuanlan.zhihu.com/p/38454785> * |
| 张奎: "基于Haproxy+Keepalived的Web集群负载均衡研究与应用", 《新疆师范大学学报（自然科学版）》, vol. 38, no. 1, pages 91 - 96 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115794769A (en) * | 2022-10-09 | 2023-03-14 | 云和恩墨(北京)信息技术有限公司 | Method for managing high-availability database, electronic device and storage medium |
| CN115794769B (en) * | 2022-10-09 | 2024-03-19 | 云和恩墨(北京)信息技术有限公司 | Method for managing high-availability database, electronic equipment and storage medium |
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