CN108062256A - The access method and device of a kind of application program - Google Patents

Abstract

An embodiment of the present invention provides a method and device for accessing an application program. The method includes: counting the number of times an access response message meets a preset condition within a preset statistical period; The access request message sent by the program is returned; when the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application program sends the access request message, an exception is thrown, and the described An access request message is sent to the accessed object. The embodiment of the present invention can provide a fuse protection mechanism when an application program accesses various accessed objects, so as to meet the requirement for protection of the application program.

Description

Application program access method and device

technical field

The present invention relates to the technical field of programs, in particular to an application program access method and an application program access device.

Background technique

Whether in the era of SOA (Service-Oriented Architecture, Service-Oriented Architecture) architecture or the era of microservices, the integration and interaction of systems through service calls has become a consensus in the software industry. With the rapid expansion of the number of services, especially the advent of the cloud service era, service governance has become an indispensable capability in the service era. Its main functions include: service registration and discovery, service routing, load balancing, flow control, concurrency control, security authentication, and fuse mechanism.

When a local application calls a remote service, a large number of service timeouts occur due to the decline in the processing capacity of the remote service or other problems. As a result, the threads of the local virtual machine cannot be released in time. Since the thread is a valuable resource of the virtual machine, once a large number of resources are used, it will As a result, local applications do not have extra threads to process other requests, resulting in reduced service capabilities of local applications. Coupled with a large number of service timeouts, many service call results are unknown, and the impact is even greater in the financial industry that requires high data transaction consistency. . In order to solve this problem, a protection mechanism for local applications and target services—fuse mechanism is added.

The general principle of the fusing mechanism is as follows:

Count service timeouts and call exceptions. If the number of timeouts or exceptions reaches the set threshold within the cycle time, an exception will be thrown directly. Any service access within the set time (for example, within 5 seconds) will directly throw an exception. If the set time exceeds the set time, a trial access will be initiated. If the access result is successful, the count will be cleared; if the trial access fails, the set The service access within the time still throws an exception, and the next trial access is not initiated until the set time is over.

The current circuit breaker mechanism has not formed a standard in the software industry.

At present, the existing technical solutions are basically aimed at services. In the running process of the software system, in addition to the inconsistency of business data and the inability to release thread resources due to the timeout of calling remote services, operations such as access to databases and file systems are also possible. lead to these problems.

Contents of the invention

In view of the above problems, embodiments of the present invention are proposed to provide an application program access method and a corresponding application program access device that overcome the above problems or at least partially solve the above problems.

In order to solve the above problems, the embodiment of the present invention discloses an application program access method, including:

In the preset statistical period, count the number of times that the access response message meets the preset condition; the access response message is returned by the access request message sent by the accessed object for the application program;

When the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to the accessed object .

Preferably, when the number of times the access response message meets the preset condition is greater than the preset threshold, the step of triggering the shutdown state includes:

When the access response message of the access request message with a specific access parameter meets the fuse condition for a preset number of times, the closed state is triggered.

Preferably, it also includes:

If the application program targeted by the access response message is the target application program, the normal state is maintained; in the normal state, the access request message sent by the application program is not restricted.

Preferably, it also includes:

An exception is thrown when the access response message includes preset return parameters.

Preferably, the preset conditions include: the access request message fails to access, the access request message times out, and the access request message is rejected.

Preferably, it also includes:

When the preset time period after the shutdown state is triggered, switch to the half-closed state; in the half-closed state, the application is prohibited from sending more than a preset number of access request messages.

Preferably, it also includes:

In the semi-closed state, if the access request message sent by the application is successfully accessed, it will switch to the normal state and reset the statistical cycle;

In the half-closed state, if the access request message sent by the application program fails to access, it will switch to the closed state.

The embodiment of the present invention also discloses an application program access device, including:

A statistical module, configured to count the number of times the access response message meets the preset condition within the preset statistical period; the access response message is returned by the access request message sent by the accessed object for the application program;

The closed state trigger module is used to trigger the closed state when the number of times the access response message meets the preset condition is greater than the preset threshold; in the closed state, when the application sends an access request message, an exception is thrown to prohibit the access A request message is sent to the accessed object.

The embodiment of the invention also discloses a device, comprising:

one or more processors; and

One or more machine-readable media having instructions stored thereon which, when executed by the one or more processors, cause the apparatus to perform one or more of the methods described above.

The embodiment of the present invention also discloses one or more machine-readable media, on which instructions are stored, and when executed by one or more processors, the device executes one or more of the above-mentioned methods.

Embodiments of the present invention include the following advantages:

In the embodiment of the present invention, the fuse function execution program can obtain the access response message returned when the application program accesses various accessed objects (such as: remote service, database), and count the number of times the access response message meets the preset condition. When the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to the accessed object. The execution program of the fuse function in the embodiment of the present invention can provide a fuse protection mechanism when the application program accesses various accessed objects, so as to meet the requirement of providing protection for the application program.

In the embodiment of the present invention, whether the access is timed out or whether the access is abnormal may be used as the basis for triggering the shutdown state. Users can configure preset conditions according to their needs.

In the embodiment of the present invention, the fusing function execution program can separately count the access response messages of the access request messages with different access parameters, and the number of times meeting the fusing conditions reaches the preset number, so as to realize multi-dimensional statistics.

Description of drawings

Fig. 1 is a flow chart of the steps of Embodiment 1 of an application program access method of the present invention;

Fig. 2 is a flow chart of the steps of Embodiment 2 of an application program access method of the present invention

Fig. 3 is a working schematic diagram of the execution program of the fusing function in the embodiment of the present invention;

Fig. 4 is a structural block diagram of an embodiment of an application program access device in the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG. 1 , it shows a flow chart of the steps of Embodiment 1 of an application program access method of the present invention, which may specifically include the following steps:

Step 101, within a preset statistical period, count the number of times the access response message meets the preset condition; the access response message is returned by the access request message sent by the accessed object for the application program;

When the application program needs to access the accessed object, it sends an access request message to the accessed object. In this embodiment of the present invention, the accessed objects may include: remote services, databases, file systems, caches, and other objects that can be accessed by applications.

The fuse function execution program can count the access response messages returned by the accessed object according to the configurable statistical cycle.

Developers only need to write a small amount of code on the key code interceptor according to the document or configure the code developed based on the Spring framework to implement the fuse protection mechanism for the application.

In this embodiment of the present invention, the preset conditions may include: the access request message fails to access, the access request message times out, and the access request message is rejected.

In the embodiment of the present invention, whether the access is timed out or whether the access is abnormal may be used as the basis for triggering the shutdown state. In practice, users can configure preset conditions according to their needs. For example, set the circuit breaker threshold configuration based on conditional expressions, closeCondition: "accessCount>100and timeoutRate>50" indicates that the shutdown state is triggered when the total number of access request messages is greater than 100 and the timeout rate is greater than 50%.

Step 102, when the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to The object being accessed.

In the embodiment of the present invention, the fuse function execution program can obtain the access response message returned when the application program accesses various accessed objects (such as: remote service, database), and count the number of times the access response message meets the preset condition. When the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to the accessed object. The fuse function execution program in the embodiment of the present invention can provide a fuse protection mechanism when an application program accesses various accessed objects, so as to meet requirements.

Referring to FIG. 2 , it shows a flow chart of the steps of Embodiment 2 of an application program access method of the present invention, which may specifically include the following steps:

Step 201, within a preset statistical period, count the number of times that the access response message meets the preset condition; the access response message is returned by the access request message sent by the accessed object for the application program;

In this embodiment of the present invention, the accessed objects may include: remote services, databases, file systems, caches, and other objects that can be accessed by applications.

The fuse function execution program can count the access response messages returned by the accessed object according to the configurable statistical cycle.

Developers only need to write a small amount of code on the key code interceptor according to the document or configure the code developed based on the Spring framework to implement the fuse protection mechanism for the application.

In this embodiment of the present invention, the preset conditions may include: the access request message fails to access, the access request message times out, and the access request message is rejected.

In the embodiment of the present invention, an expression for judging failure is provided, "failedCondition:respParam.returnCode.type=E" means that when the type attribute of returnCode in the access response message is the string "E", it means that the access result of the application is fail.

In the embodiment of the present invention, whether the access is timed out or whether the access is abnormal may be used as the basis for triggering the shutdown state. Users can configure preset conditions according to their needs.

Step 202, when the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to The object being accessed.

In the embodiment of the present invention, the step 202 may include the following sub-steps:

In sub-step S11 , when the number of access response messages of access request messages with specific access parameters meeting the fuse condition reaches a preset number of times, the shutdown state is triggered.

In the embodiment of the present invention, the access request message may include various parameters. For example, when accessing the banking system, the access parameters in the access request message may include: interface name, channel number, application program number, etc.

The fuse function execution program can separately count the access response messages of the access request messages with different access parameters, and the number of times that meet the fuse condition reaches the preset number, realizing multi-dimensional statistics.

For example, groupBys:[reqParam.interface+reqParam.channelId,reqParam.applicationId], groupBys means multiple groups, comma "," is the separator. In this example, reqParam.interface+reqParam.channelId means that the combination of the interface name and channel number in the request parameter is a counting dimension, and the application number in the request parameter is another counting dimension. When there is one counting information in the two counting dimensions A fuse will be triggered when the fuse condition is triggered.

Dimension 1: Count the access response messages for access request messages with the same interface name and channel number, and the number of times that meet the circuit breaker condition reaches the preset number of times.

Dimension 2: Count the access response messages for access request messages with the same application number, and the number of times that meet the circuit breaker condition reaches the preset number of times.

Step 203, if the application program targeted by the access response message is the target application program, keep the normal state; in the normal state, do not restrict the access request message sent by the application program.

In the embodiment of the present invention, the fuse function execution program does not control the access initiated by the target application program.

For example, a circuit breaker filtering mechanism is provided, that is, to cancel the circuit breaker restriction for some special transaction scenarios, filterCondition:reqParam.application='cmbc' means that if the access is initiated by the cmbc application, it will not be controlled by the circuit breaker function executive program.

Step 204, when the access response message includes a preset return parameter, an exception is thrown.

In some cases, although the access response message returned by the accessed object is not an access timeout message or an access exception message, but returns a business result, the business result is actually empty. At this time, the fuse function execution program can consider the access failure and throw an exception.

For example, it provides a configuration mechanism for the program to return results when the circuit breaker mechanism is triggered. rejectResult: "returnnull" means returning empty, and the default is to throw an exception.

Step 205, switch to the half-closed state when the preset time period after the triggering of the closed state is reached; in the half-closed state, prohibit the application program from sending more than a preset number of access request messages.

The preset time period can be configured by the user, for example, after 5 seconds after triggering the closed state, it will automatically switch to the half-closed state.

In the half-closed state, the fuse function executor allows the application to send access request messages with a concurrent number of 1.

Step 206, in the semi-closed state, if the access request message sent by the application is successfully accessed, switch to the normal state and reset the statistical period;

Step 207, in the semi-closed state, if the access request message sent by the application program fails to access, switch to the closed state.

In order to enable those skilled in the art to better understand the embodiment of the present invention, the following uses an example to illustrate the embodiment of the present invention:

Referring to FIG. 3 , it is a working schematic diagram of the execution program of the fusing function in the embodiment of the present invention.

The fuse function executes the program to obtain the access response message returned by the accessed object in response to the access request message sent by the application program. Count the number of visits and count the number of times the access response message is access failure, access timeout, and access rejection.

When the number of certain statistical items reaches the fusing threshold within a statistical cycle, the fusing function execution program can be switched from the normal state to the off state. In the closed state, when the application sends an access request message, an exception is thrown, which prohibits the access request message from being sent to the accessed object.

After waiting for a period of time, the fuse function executive program switches from the closed state to the half-closed state. In the half-closed state, the application is allowed to send an access request message, and the rest of the access request messages are prohibited from being sent to the accessed object.

In the semi-closed state, if the access request message sent by the application is successfully accessed, it will switch to the normal state and reset the statistical cycle;

In the half-closed state, if the access request message sent by the application program fails to access, it will switch to the closed state.

It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present invention is not limited by the described action sequence, because According to the embodiment of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

Referring to FIG. 4 , it shows a structural block diagram of an embodiment of an application program access device of the present invention, which may specifically include the following modules:

The statistics module 401 is used to count the number of times that the access response message meets the preset condition within the preset statistical period; the access response message is returned by the access request message sent by the accessed object for the application program;

Closed state trigger module 402, used for triggering the closed state when the number of times the access response message meets the preset condition is greater than the preset threshold; in the closed state, when the application program sends the access request message, an exception is thrown, and the described An access request message is sent to the accessed object.

In the embodiment of the present invention, the closed state triggering module 402 may include:

The closed state triggering submodule is used to trigger the closed state when the number of access response messages of the access request message with specific access parameters meeting the fuse condition reaches a preset number of times.

In an embodiment of the present invention, the device may also include:

The normal state maintaining module is used to maintain the normal state if the application program targeted by the access response message is the target application program; in the normal state, the access request message sent by the application program is not restricted.

In an embodiment of the present invention, the device may also include:

The parameter exception module is used to throw an exception when the access response message includes preset return parameters.

In the embodiment of the present invention, the preset conditions include: the access request message fails to access, the access request message times out, and the access request message is rejected.

In an embodiment of the present invention, the device may also include:

The half-closed state switching module is used to switch to the half-closed state when the preset time period after the triggering of the closed state is reached; in the half-closed state, the application program is prohibited from sending more than a preset number of access request messages.

In an embodiment of the present invention, the device may also include:

The normal state switching module is used to switch to the normal state and reset the statistical period if the access request message sent by the application program is accessed successfully in the semi-closed state;

The closed state switching module is used to switch to the closed state if the access request message sent by the application program fails to access in the semi-closed state.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The embodiment of the invention also discloses a device, comprising:

one or more processors; and

One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, cause the apparatus to perform the methods described in the above embodiments.

The embodiment of the present invention also discloses one or more machine-readable media, on which instructions are stored, and when executed by one or more processors, the device executes the method described in the above embodiments.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention 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, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

An application program access method and an application program access device provided by the present invention have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments It is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, The contents of this description should not be construed as limiting the present invention.

Claims (10)

1. An access method for an application program, comprising: In the preset statistical period, count the number of times that the access response message meets the preset condition; the access response message is returned by the access request message sent by the accessed object for the application program; When the number of times the access response message meets the preset condition is greater than the preset threshold, the closed state is triggered; in the closed state, when the application sends an access request message, an exception is thrown, and the access request message is prohibited from being sent to the accessed object . 2. The method according to claim 1, wherein when the number of times the access response message meets the preset condition is greater than a preset threshold, the step of triggering the shutdown state comprises: When the access response message of the access request message with a specific access parameter meets the fuse condition for a preset number of times, the closed state is triggered. 3. The method according to claim 1, further comprising: If the application program targeted by the access response message is the target application program, the normal state is maintained; in the normal state, the access request message sent by the application program is not restricted. 4. The method according to claim 1, further comprising: An exception is thrown when the access response message includes preset return parameters. 5. The method according to claim 1, wherein the preset conditions include: the access request message fails to access, the access request message times out, and the access request message is rejected. 6. The method according to any one of claims 1-5, further comprising: When the preset time period after the shutdown state is triggered, switch to the half-closed state; in the half-closed state, the application is prohibited from sending more than a preset number of access request messages. 7. The method according to claim 6, further comprising: In the semi-closed state, if the access request message sent by the application is successfully accessed, it will switch to the normal state and reset the statistical cycle; In the half-closed state, if the access request message sent by the application program fails to access, it will switch to the closed state. 8. An access device for an application program, comprising: A statistical module, configured to count the number of times the access response message meets the preset condition within the preset statistical period; the access response message is returned by the access request message sent by the accessed object for the application program; The closed state trigger module is used to trigger the closed state when the number of times the access response message meets the preset condition is greater than the preset threshold; in the closed state, when the application sends an access request message, an exception is thrown to prohibit the access A request message is sent to the accessed object. 9. A device, characterized in that it comprises: one or more processors; and One or more machine-readable media having instructions stored thereon which, when executed by the one or more processors, cause the apparatus to perform one or more of the methods recited in claims 1-7. 10. One or more machine-readable media having stored thereon instructions which, when executed by one or more processors, cause an apparatus to perform one or more of the methods of claims 1-7.