WO2019169724A1

WO2019169724A1 - Server concurrency control method and device, computer device, and storage medium

Info

Publication number: WO2019169724A1
Application number: PCT/CN2018/085263
Authority: WO
Inventors: 郭腾达; 刘宪宝
Original assignee: 平安科技（深圳）有限公司
Priority date: 2018-03-09
Filing date: 2018-05-02
Publication date: 2019-09-12
Also published as: CN108551465B; CN108551465A

Abstract

The present application discloses a server concurrency control method and device, a computer device, and a storage medium. The method comprises: calculating a server overall performance value according to a current operating parameter of a database server and weights in one-to-one correspondence with operating indexes therein; if the server overall performance value is greater than an overall performance value threshold, setting the number of current application service concurrencies of the server to be the maximum number of concurrencies supported by an application service; if a number of valid requests in the acquired current requests is greater than the maximum number of concurrencies supported by the application service, forwarding, to a standby cache server, requests exceeding the maximum number of concurrencies supported by the application service; and if a total number of cached requests in the standby cache server exceeds a throw-out request threshold, sending notification information providing notification of an increase in database servers. The method enables requests exceeding the maximum number of concurrencies supported by the application service to be forwarded to the standby cache server and the provision of notification for increasing database servers, improving server operating performance.

Description

Server concurrency control method, device, computer device and storage medium

This application claims the priority of the Chinese patent application filed on March 9, 2018, the Chinese Patent Office, Application No. 201101195292.7, and the application name is "Server Concurrency Control Method, Apparatus, Computer Equipment, and Storage Medium", the entire contents of which are The citations are incorporated herein by reference.

Technical field

The present application relates to the field of information technology, and in particular, to a server concurrency control method, apparatus, computer device, and storage medium.

Background technique

Ordinary systems, after the compilation and release, the system does not allow changes or extensions. If you want to expand a function, you must modify the code to recompile and release. Using a plugin can solve this problem very well. Eclipse (Eclipse is an open source, Java-based extensible development platform) plug-in system is a very successful plug-in framework, Eclipse's entire IDE is a plug-in that provides new extension points for other plug-ins to extend. In the plug-in system, when the client initiates a large number of requests to the database server, due to the upper limit of the processing capacity of the database server, the performance of the database server is degraded, and finally the application is down.

Summary of the invention

The present invention provides a server concurrency control method, apparatus, computer device, and storage medium, which is intended to solve the problem that when a client initiates a large number of requests to a database server in the prior art, the database server cannot optimize the request to reach the upper limit. As a result, the performance of the database server is degraded, and the application is down.

In a first aspect, the present application provides a server concurrency control method, which includes: acquiring a current running parameter of a database server, and a weight corresponding to an operation index included in the running parameter, according to the running parameter and the running index. Corresponding weights obtain the server performance comprehensive value; if the server performance comprehensive value is greater than the preset performance comprehensive value threshold, the current application service concurrent number is obtained, and the current application service concurrent number is set as the preset application service to bear the maximum concurrent number; Obtain the current number of requests of the database server, determine whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications; if the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the number of valid requests exceeds the number of services. The request with the maximum number of concurrent requests is forwarded to the backup cache server; if the total number of requests cached in the backup cache server exceeds the preset throw request threshold, the notification information for notifying the database server is sent to the designated terminal; New is detected within the time interval Increase the database server, obtain the cached request from the alternate cache server, and respond accordingly.

In a second aspect, the present application provides a server concurrency control device, which includes: an integrated value calculation unit, configured to acquire a current running parameter of a database server, and a weight corresponding to an operating index included in the operating parameter, according to the running The parameter and the weight corresponding to the running index are obtained by the server performance comprehensive value; the maximum concurrent number adjusting unit is configured to obtain the current application service concurrent number of the server if the server performance comprehensive value is greater than the preset performance comprehensive value threshold, and the current application The service concurrent number is set to the default application service to bear the maximum number of concurrent; the determining unit is configured to obtain the current number of requests of the database server, determine whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, and request the forwarding unit, If the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the request for exceeding the maximum number of concurrent requests of the valid requests is forwarded to the alternate cache server; the notification unit is configured to be cached in the alternate cache server. The total number of requests exceeds the default throw Obtaining a threshold, sending notification information for notifying the database server to the designated terminal; and a re-response unit, configured to obtain a cache request from the backup cache server if a new database server is detected within a preset time interval, and Corresponding response.

In a third aspect, the present application further provides a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the computer program The server concurrency number control method according to any one of the preceding claims.

In a fourth aspect, the present application also provides a storage medium, wherein the storage medium stores a computer program, the computer program comprising program instructions, the program instructions, when executed by a processor, causing the processor to execute the application The server concurrency control method described in any one of the above.

The application provides a server concurrency control method, device, computer device and storage medium. This method implements the request to forward the maximum number of concurrent calls beyond the service to the alternate cache server, and notifies the new database server to improve the running performance of the server.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. Obviously, the drawings in the following description are some embodiments of the present application, For the ordinary technicians, other drawings can be obtained based on these drawings without any creative work.

FIG. 1 is a schematic flowchart of a server concurrent number control method according to an embodiment of the present application;

FIG. 2 is another schematic flowchart of a server concurrent number control method according to an embodiment of the present disclosure;

FIG. 3 is another schematic flowchart of a server concurrency control method according to an embodiment of the present application;

FIG. 4 is another schematic flowchart of a server concurrency control method according to an embodiment of the present disclosure;

FIG. 5 is a schematic block diagram of a server concurrent number control apparatus according to an embodiment of the present application;

FIG. 6 is another schematic block diagram of a server concurrent number control apparatus according to an embodiment of the present disclosure;

FIG. 7 is another schematic block diagram of a server concurrent number control apparatus according to an embodiment of the present disclosure;

FIG. 8 is another schematic block diagram of a server concurrent number control apparatus according to an embodiment of the present application;

FIG. 9 is a schematic block diagram of a computer device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a method for controlling the number of concurrent servers according to an embodiment of the present application. The method is applied to terminals such as desktop computers, laptop computers, and tablet computers. As shown in FIG. 1, the method includes steps S101 to S106.

S101. Obtain a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, and obtain a server performance comprehensive value according to the running parameter and the weight corresponding to the running index.

In an embodiment, the running parameters include running indicators including server CPU usage, server memory usage, throughput, response time, and through server performance integrated value=CPU usage rate* first weight value+server memory usage. Rate * second weight value + throughput * third weight value + response time * fourth weight value, calculate the acquisition server performance integrated value. In this embodiment, the current running parameters of the database server are obtained, including multiple running indicators, such as server CPU usage (mainly server CPU usage), memory usage (mainly server memory usage), and throughput (ie, Throughput, common unit is MB/s), response time (time when the server responds to the request), etc.; each running indicator is pre-set to have a weight value, such as the CPU usage weight value is 0.2, the memory usage weight value For 0.2, the weight value of the throughput is 0.4, and the weight of the response time is 0.2. When the current running parameters and the corresponding weight values are obtained, the server performance comprehensive value can be calculated, such as:

Server performance integrated value = CPU usage * 0.2 + memory usage * 0.2 + throughput * 0.4 + response time * 0.2 = 0.9 * 0.2 + 0.8 * 0.2 + 5 * 0.4 + 1 * 0.2 = 2.54;

Through the above calculation, the comprehensive performance index of the database server can be monitored in real time, and the judgment result of comparing the comprehensive performance index with the preset performance comprehensive value threshold is used as a criterion for whether the database server is currently overloaded, and provides a judgment for subsequent judgment. index.

S102. If the server performance comprehensive value is greater than a preset performance comprehensive value threshold, obtain the current application service concurrent number of the server, and set the current application service concurrent number to the preset application service to bear the maximum concurrent number.

In this embodiment, if the server performance comprehensive value is greater than a preset performance comprehensive value threshold (eg, the performance comprehensive value threshold is 2, and the calculated server performance integrated value 2.54 is greater than 2), the current application service of the database server is immediately acquired. The number of concurrents will be the maximum number of concurrency for the default application service. That is, when the server performance comprehensive value is greater than the performance comprehensive value threshold and the database server reaches the critical state of the downtime, the current application service concurrent number of the database server should be set as the default application service to withstand the maximum number of concurrent to receive a certain number. The number of connections makes the server buffered before it goes down. However, in order to avoid unrestricted increase in the number of connections, it should be further determined whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications.

S103. Obtain a current number of requests of the database server, and determine whether the number of valid requests in the current request number is greater than the maximum concurrent number of the application service.

In an embodiment, as shown in FIG. 2, before the step S103, the method further includes: S103a, performing statistics by the AtomicInteger class to obtain the accumulated concurrency number of the database server; S103b, and accumulating the concurrent number of the acquired database server The initial concurrency number corresponding to the current statistical period is subtracted, and the current number of requests corresponding to the current time period is obtained.

In this embodiment, the statistics are obtained by using the java.util.concurrent.atomic.AtomicInteger class in the JDK to obtain the cumulative number of concurrent connections of the database server; the cumulative number of concurrent databases obtained is subtracted from the current statistical period. The initial number of concurrency, the current number of requests corresponding to the current time period. For example, at a specified time (such as 12:00) until the deadline (such as 12:05), the cumulative number of concurrent connections of the database server is obtained by the java.util.concurrent.atomic.AtomicInteger class as the first statistical value; The initial concurrent time corresponding to the current statistical period is obtained from the starting time of the specified time (for example, 12:00), and the initial concurrent number is subtracted from the first statistical value, that is, the current number of requests corresponding to the current time period is obtained. The AtomicInteger class can accurately count the accumulated concurrency of the database server, and subtract the initial concurrency number corresponding to the current statistical period to obtain the current number of requests corresponding to the current time period. After obtaining the current number of requests corresponding to the current time period, it can be determined whether it reaches the threshold that causes the server to crash.

In an embodiment, as shown in FIG. 3, after the step S103b, the method further includes:

S103c: Obtain a current request number of the database server by using a Java filter, and filter and intercept the request that does not satisfy the preset release condition in the request corresponding to the current request number, and obtain a valid request number corresponding to the current request number.

In this embodiment, when the Java filter monitors the request of the database server, it filters all current requests of the database server in the current time period according to the preset interception performance, and releases a specified number of requests (the specified quantity is The application service is subject to the maximum number of concurrency. Requests that exceed the specified number are sent to the alternate cache server based on the address of the cache server configured in the Java filter. If the current number of requests is greater than the maximum number of concurrent applications, the database server can no longer respond to requests that exceed the maximum number of concurrent applications. If the forwarding or throwing process is not taken, the server may be down. The strategy adopted is to forward requests that exceed the service's maximum number of concurrency to the alternate cache server. Since the requests received by the database server are sorted by means of queues, that is, queued according to the chronological order sent by the requests, each request is given a queuing number, and the queuing number exceeds the request of the application service to withstand the maximum number of concurrent requests. Then forward to the alternate cache server; where the alternate cache server can be a separate space for the space set in the database server.

S104. If the number of valid requests in the current request number is greater than the maximum number of concurrent applications, the request exceeding the maximum concurrent number of services in the valid request number is forwarded to the backup cache server.

S105. If the total number of requests cached in the backup cache server exceeds a preset throw request threshold, send notification information for notifying the database server to the designated terminal.

In this embodiment, the manner in which requests exceeding the maximum concurrent number of applications are forwarded is taken in order to keep every request as a response as possible. In order to obtain a timely response, it is necessary to detect whether the total number of requests cached in the backup cache server exceeds a preset throw request threshold. If the total number of requests cached in the backup cache server exceeds a preset throw request threshold, it should be timely. The notification increases the database server. The above database server may be in a standby state or in a shutdown state. Once the newly added database server receives the request cached in the backup cache server, it processes and responds in time.

S106. If a new database server is detected within a preset time interval, the cache request is obtained from the backup cache server, and the response is corresponding.

In an embodiment, as shown in FIG. 4, after the step S106, the method further includes:

S107. If a new database server is not detected within a preset time interval, the cached request in the alternate cache server is thrown.

In this embodiment, when the newly added database server is not detected within the preset time interval, the request for obtaining the cache in the backup cache server is immediately forwarded to the newly added database server for processing and response. When the new database server is not detected within the preset time interval, after the preset time threshold is exceeded, some application requests exceeding the server load are thrown (that is, the cached request in the alternate cache server is thrown) , do not connect to the database to execute database scripts to reduce the running load of the server.

It can be seen that the method forwards the request exceeding the maximum concurrent number of services to the alternate cache server, and notifies the newly added database server, thereby improving the running performance of the server.

The embodiment of the present application further provides a server concurrency control device, which is used to execute any of the foregoing server concurrency control methods. Specifically, please refer to FIG. 5. FIG. 5 is a schematic block diagram of a server concurrent number control apparatus according to an embodiment of the present application. The server concurrency control device 100 can be installed in a desktop computer, a tablet computer, a laptop computer, or the like.

As shown in FIG. 5, the server concurrency control device 100 includes an integrated value calculation unit 101, a maximum concurrency adjustment unit 102, a determination unit 103, a request forwarding unit 104, a notification unit 105, and a re-response unit 106.

The integrated value calculation unit 101 is for. Obtain the current running parameters of the database server and the weights corresponding to the running indicators included in the running parameters, and obtain the server performance comprehensive value according to the operating parameters and the weights corresponding to the running indexes.

The maximum number of concurrency adjustment unit 102 is configured to obtain the current application service concurrent number if the server performance comprehensive value is greater than the preset performance comprehensive value threshold, and set the current application service concurrent number to the preset application service to bear the maximum concurrent number.

The determining unit 103 is configured to obtain the current number of requests of the database server, and determine whether the number of valid requests in the current request number is greater than the maximum concurrent number of the application service.

In an embodiment, as shown in FIG. 6, the server concurrent number control apparatus 100 further includes:

The accumulating unit 103a is configured to perform statistics by the AtomicInteger class to obtain the accumulated concurrency number of the database server. The current request number calculating unit 103b is configured to subtract the accumulated concurrency number of the acquired database server from the initial concurrency corresponding to the current statistical period. Number, get the current number of requests corresponding to the current time period.

In an embodiment, as shown in FIG. 7, the server concurrent number control apparatus 100 further includes:

The filtering unit 103c is configured to obtain the current number of requests of the database server by using the Java filter, and filter and intercept the request that does not satisfy the preset release condition in the request corresponding to the current number of requests, and obtain a valid request number corresponding to the current number of requests.

The request forwarding unit 104 is configured to forward, if the number of valid requests in the current request quantity is greater than the maximum number of concurrent applications, the request exceeding the maximum concurrent number of services in the valid request number is forwarded to the backup cache server.

The notification unit 105 is configured to send, to the designated terminal, notification information for notifying the increase database server, if the total number of requests cached in the backup cache server exceeds a preset throw request threshold.

The re-response unit 106 is configured to: if a new database server is detected within a preset time interval, obtain a cache request from the backup cache server, and respond accordingly.

In an embodiment, as shown in FIG. 8, the server concurrent number control apparatus 100 further includes:

The requesting and ejecting unit 107 is configured to: if a new database server is not detected within a preset time interval, the cached request in the alternate cache server is thrown.

It can be seen that the device forwards the request exceeding the maximum concurrent number of services to the backup cache server, and notifies the newly added database server, thereby improving the running performance of the server.

The above server concurrency control means can be implemented in the form of a computer program which can be run on a computer device as shown in FIG.

Please refer to FIG. 9. FIG. 9 is a schematic block diagram of a computer device according to an embodiment of the present application. The computer device 500 device can be a terminal. The terminal can be an electronic device such as a tablet computer, a notebook computer, a desktop computer, or a personal digital assistant.

Referring to FIG. 9, the computer device 500 includes a processor 502, a memory, and a network interface 505 connected by a system bus 501, wherein the memory can include a non-volatile storage medium 503 and an internal memory 504. The non-volatile storage medium 503 can store an operating system 5031 and a computer program 5032. The computer program 5032 includes program instructions that, when executed, cause the processor 502 to perform a server concurrency control method. The processor 502 is used to provide computing and control capabilities to support the operation of the entire computer device 500. The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503, which when executed by the processor 502, may cause the processor 502 to perform a server concurrency control method. The network interface 505 is used for network communication, such as sending assigned tasks and the like. It will be understood by those skilled in the art that the structure shown in FIG. 9 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation of the computer device 500 to which the solution of the present application is applied, and a specific computer device. 500 may include more or fewer components than shown, or some components may be combined, or have different component arrangements.

The processor 502 is configured to run a computer program 5032 stored in the memory to implement the following functions: acquiring a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, according to the operating parameter and The weight corresponding to the running index is obtained by the server performance comprehensive value; if the server performance comprehensive value is greater than the preset performance comprehensive value threshold, the current application service concurrent number of the server is obtained, and the current application service concurrent number is set as the preset application service. The maximum number of concurrent requests; the current number of requests from the database server, whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications; if the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the application will be effective. The request exceeding the maximum concurrent number of the service is forwarded to the backup cache server; if the total number of requests cached in the backup cache server exceeds the preset throw request threshold, the notification information for notifying the database server is sent to the designated terminal; If at the preset time A new database server is detected in the interval, and the cached request is obtained from the alternate cache server, and the response is corresponding.

In an embodiment, the processor 502 also performs the following operations: through server performance integration value = CPU usage rate * first weight value + server memory usage rate * second weight value + throughput * third weight value + response time * The fourth weight value is calculated to obtain a server performance comprehensive value; wherein the running parameter includes an operating indicator including a server CPU usage rate, a server memory usage rate, a throughput, and a response time.

In an embodiment, the processor 502 further performs the following operations: performing statistics by using the AtomicInteger class to obtain the accumulated concurrent number of the database server; and subtracting the accumulated concurrent number of the acquired database server, and subtracting the initial concurrent number corresponding to the current statistical period. , get the current number of requests corresponding to the current time period.

In an embodiment, the processor 502 further performs the following operations: acquiring, by the Java filter, the current number of requests of the database server, and filtering and intercepting the request that does not meet the preset release condition in the request corresponding to the current number of requests, and obtaining and currently The number of valid requests corresponding to the number of requests.

In an embodiment, the processor 502 also performs the following operations: if a new database server is not detected within a preset time interval, the cached request in the alternate cache server is thrown.

It will be understood by those skilled in the art that the embodiment of the computer device shown in FIG. 9 does not constitute a limitation on the specific configuration of the computer device. In other embodiments, the computer device may include more or fewer components than illustrated. Or combine some parts, or different parts. For example, in some embodiments, the computer device may include only a memory and a processor. In such an embodiment, the structure and functions of the memory and the processor are the same as those of the embodiment shown in FIG. 9, and details are not described herein.

It should be understood that, in the embodiment of the present application, the processor 502 may be a central processing unit (CPU), and the processor 502 may also be another general-purpose processor, a digital signal processor (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In another embodiment of the present application, a storage medium is provided. The storage medium can be a computer readable storage medium. The storage medium stores a computer program, wherein the computer program includes program instructions. The server concurrency control method of the embodiment of the present application is implemented when the program instruction is executed by the processor.

The storage medium may be an internal storage unit of the aforementioned device, such as a hard disk or a memory of the device. The storage medium may also be an external storage device of the device, such as a plug-in hard disk equipped on the device, a smart memory card (SMC), a secure digital (SD) card, and a flash memory card. (Flash Card), etc. Further, the storage medium may also include both an internal storage unit of the device and an external storage device.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the device, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any equivalents can be easily conceived by those skilled in the art within the technical scope disclosed in the present application. Modifications or substitutions are intended to be included within the scope of the present application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

A server concurrency number control method, comprising:

Obtaining a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, and obtaining a comprehensive performance value of the server according to the running parameter and the weight corresponding to the running index;

If the server performance comprehensive value is greater than the preset performance comprehensive value threshold, obtain the current application service concurrent number of the server, and set the current application service concurrent number to the preset application service to bear the maximum concurrent number;

Obtain the current number of requests of the database server, and determine whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications;

If the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the request exceeding the maximum concurrent number of services in the number of valid requests is forwarded to the alternate cache server;

If the total number of requests cached in the backup cache server exceeds a preset throw request threshold, sending notification information for notifying the database server to the designated terminal;

If a new database server is detected within the preset time interval, the cache request is obtained from the backup cache server, and the response is corresponding.
The server concurrency control method according to claim 1, wherein the running parameters include running indicators including server CPU usage, server memory usage, throughput, and response time;

The obtaining the server performance comprehensive value according to the running parameter and the weight corresponding to the running index, including:

The server performance comprehensive value is calculated by the server performance integrated value = CPU usage rate * first weight value + server memory usage rate * second weight value + throughput * third weight value + response time * fourth weight value.
The server concurrency control method according to claim 1, wherein before the obtaining the current number of requests of the database server, the method further comprises:

Statistics are collected by the AtomicInteger class to obtain the cumulative number of concurrent connections of the database server;

The accumulated concurrent number of the obtained database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained.
The server concurrency number control method according to claim 3, wherein the accumulated concurrent number of the acquired database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained. After that, it also includes:

The current number of requests of the database server is obtained by the Java filter, and the request that does not meet the preset release condition in the request corresponding to the current number of requests is filtered and intercepted, and the number of valid requests corresponding to the current number of requests is obtained.
The server concurrency control method according to claim 1, wherein if a new database server is detected within a preset time interval, a cache request is obtained from the backup cache server, and after the response is received, Also includes:

If no new database server is detected within the preset time interval, the cached request in the alternate cache server is thrown.
A server concurrency control device, comprising:

The comprehensive value calculation unit is configured to obtain a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, and obtain a comprehensive value of the server performance according to the running parameter and the weight corresponding to the running index;

The maximum number of concurrent adjustment units is configured to obtain the current application service concurrent number if the server performance comprehensive value is greater than the preset performance comprehensive value threshold, and set the current application service concurrent number as the preset application service to bear the maximum concurrent number;

The determining unit is configured to obtain the current number of requests of the database server, and determine whether the number of valid requests in the current request number is greater than the maximum concurrent number of the application service;

The request forwarding unit is configured to: if the number of valid requests in the current request number is greater than the maximum concurrent number of the application service, forward the request that exceeds the maximum concurrent number of services in the valid request number to the backup cache server;

a notification unit, configured to send, to the designated terminal, notification information for notifying the increase database server, if the total number of requests cached in the backup cache server exceeds a preset throw request threshold;

The re-response unit is configured to: if a new database server is detected within a preset time interval, obtain a cache request from the backup cache server, and respond accordingly.
The server concurrency control device according to claim 6, further comprising:

Cumulative unit for performing statistics by the AtomicInteger class to obtain the cumulative number of concurrent connections of the database server;

The current request number calculation unit is configured to subtract the initial concurrent number corresponding to the current statistical period by the accumulated concurrent number of the acquired database server, and obtain the current number of requests corresponding to the current time period.
The server concurrency control device according to claim 7, further comprising:

The filtering unit is configured to obtain the current number of requests of the database server through the Java filter, and filter and intercept the request that does not meet the preset release condition in the request corresponding to the current number of requests, and obtain a valid request number corresponding to the current number of requests.
The server concurrency control device according to claim 6, wherein the running parameter includes an operating indicator including a server CPU usage rate, a server memory usage rate, a throughput, and a response time;

The comprehensive value calculation unit is configured to calculate by using server performance integrated value=CPU usage rate*first weight value+server memory usage rate*second weight value+throughput*third weight value+response time*fourth weight value Get the server performance composite value.
The server concurrency control device according to claim 6, further comprising:

The requesting unit is configured to throw a cached request in the alternate cache server if a new database server is not detected within a preset time interval.
A computer apparatus comprising a memory, a processor, and a computer program stored on the memory and operative on the processor, wherein the processor, when executing the computer program, implements the following steps:

Obtaining a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, and obtaining a comprehensive performance value of the server according to the running parameter and the weight corresponding to the running index;

If the server performance comprehensive value is greater than the preset performance comprehensive value threshold, obtain the current application service concurrent number of the server, and set the current application service concurrent number to the preset application service to bear the maximum concurrent number;

Obtain the current number of requests of the database server, and determine whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications;

If the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the request exceeding the maximum concurrent number of services in the number of valid requests is forwarded to the alternate cache server;

If the total number of requests cached in the backup cache server exceeds a preset throw request threshold, sending notification information for notifying the database server to the designated terminal;

If a new database server is detected within the preset time interval, the cache request is obtained from the backup cache server, and the response is corresponding.
The computer device according to claim 11, wherein the operating parameters include operating indicators including server CPU usage, server memory usage, throughput, and response time;

The obtaining the server performance comprehensive value according to the running parameter and the weight corresponding to the running index, including:

The server performance comprehensive value is calculated by the server performance integrated value = CPU usage rate * first weight value + server memory usage rate * second weight value + throughput * third weight value + response time * fourth weight value.
The computer device according to claim 11, wherein before the obtaining the current number of requests of the database server, the method further comprises:

Statistics are collected by the AtomicInteger class to obtain the cumulative number of concurrent connections of the database server;

The accumulated concurrent number of the obtained database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained.
The computer device according to claim 13, wherein the accumulated concurrent number of the acquired database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained, and include:

The current number of requests of the database server is obtained by the Java filter, and the request that does not meet the preset release condition in the request corresponding to the current number of requests is filtered and intercepted, and the number of valid requests corresponding to the current number of requests is obtained.
The computer device according to claim 11, wherein if the newly added database server is detected within a preset time interval, the cache request is obtained from the backup cache server, and after the response, the method further includes:

If no new database server is detected within the preset time interval, the cached request in the alternate cache server is thrown.
A storage medium, characterized in that the storage medium stores a computer program, the computer program comprising program instructions that, when executed by a processor, cause the processor to perform the following operations:

Obtaining a current running parameter of the database server, and a weight corresponding to the running index included in the running parameter, and obtaining a comprehensive performance value of the server according to the running parameter and the weight corresponding to the running index;

If the server performance comprehensive value is greater than the preset performance comprehensive value threshold, obtain the current application service concurrent number of the server, and set the current application service concurrent number to the preset application service to bear the maximum concurrent number;

Obtain the current number of requests of the database server, and determine whether the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications;

If the number of valid requests in the current number of requests is greater than the maximum number of concurrent applications, the request exceeding the maximum concurrent number of services in the number of valid requests is forwarded to the alternate cache server;

If the total number of requests cached in the backup cache server exceeds a preset throw request threshold, sending notification information for notifying the database server to the designated terminal;

If a new database server is detected within the preset time interval, the cache request is obtained from the backup cache server, and the response is corresponding.
The storage medium according to claim 16, wherein the operating parameters include operating indicators including server CPU usage, server memory usage, throughput, and response time;

The obtaining the server performance comprehensive value according to the running parameter and the weight corresponding to the running index, including:

The server performance comprehensive value is calculated by the server performance integrated value = CPU usage rate * first weight value + server memory usage rate * second weight value + throughput * third weight value + response time * fourth weight value.
The storage medium according to claim 16, wherein before the obtaining the current number of requests of the database server, the method further comprises:

Statistics are collected by the AtomicInteger class to obtain the cumulative number of concurrent connections of the database server;

The accumulated concurrent number of the obtained database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained.
The storage medium according to claim 18, wherein the accumulated concurrent number of the acquired database server is subtracted from the initial concurrent number corresponding to the current statistical period, and the current number of requests corresponding to the current time period is obtained, and include:

The current number of requests of the database server is obtained by the Java filter, and the request that does not meet the preset release condition in the request corresponding to the current number of requests is filtered and intercepted, and the number of valid requests corresponding to the current number of requests is obtained.
The storage medium according to claim 16, wherein if the newly added database server is detected within a preset time interval, the cache request is obtained from the backup cache server, and after the response, the method further includes:

If no new database server is detected within the preset time interval, the cached request in the alternate cache server is thrown.