CN112114881B - Micro-service-based online method and system - Google Patents
Micro-service-based online method and system Download PDFInfo
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- CN112114881B CN112114881B CN202010855995.5A CN202010855995A CN112114881B CN 112114881 B CN112114881 B CN 112114881B CN 202010855995 A CN202010855995 A CN 202010855995A CN 112114881 B CN112114881 B CN 112114881B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
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- G06F11/3672—Test management
- G06F11/3688—Test management for test execution, e.g. scheduling of test suites
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4416—Network booting; Remote initial program loading [RIPL]
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
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Abstract
The invention provides an online method and an online system based on micro services, wherein the micro services are a service calling mode, and the online method comprises the following steps: before the service is registered in the registration center, executing an initialization process of an application program corresponding to the service; after the initialization process is completed, registering the service to a registration center by using a method call interface in the server, wherein the method call interface is an interface without parameters; the client invokes a service registered with the registry. The technical scheme of the invention at least can lead the service to realize real elegant online.
Description
Technical Field
The invention relates to the technical field of computers and networks, in particular to an online method and an online system based on micro services.
Background
Micro-services are one type of service invocation mode commonly used in enterprises. Contrary to micro-services is a monolithic application, namely: all functions are packaged into an application in a single unit. The main problem of single application is the maintenance difficulty, each small change requires the whole application program to be on line, and codes are related, and one small problem may cause the whole application to be unavailable. As service lines grow more and more, multiple single applications are often created, each serving a different service. However, different services generally include functional modules with the same or similar functions, which causes problems such as repeated development of functions. In the micro-service architecture mode, an application is split into a plurality of applets according to a functional module, each of the applets is responsible for a single responsibility, and the applications are independent from each other and interact in a remote procedure call mode. In the micro service mode, each application module can be independently updated and maintained, and the capacity expansion and contraction can be independently carried out when the system is in a peak-low state, so that the system has good elasticity. However, to achieve such a goal, a reliable on-line and off-line approach is critical, which should be able to make the business lossless, i.e.: there is no interruption of traffic and no traffic anomaly. This kind of offline process with no service interruption and no service abnormality may be referred to as "graceful offline".
Regarding the online process, the current inter-call between micro services is mostly performed by adopting a remote procedure call mode, a public registry is needed in the remote procedure call process, a service provider registers a service with the registry after starting, and the service caller obtains a service provider list capable of providing the service through the registry to complete service call. In this mode, the registration of the service is usually automatically completed, and the service is registered with the registry after the application program is started, so that the application program cannot be guaranteed to run normally, and thus service call failure may be caused. Common solutions include: request retry is performed at the client, a gray level distribution mode is adopted, and abnormal services are removed through monitoring. Request retries at a client means that when the client fails to request the server, the client requests the server again or multiple times until the request is successful or exceeds a specified number of retries. This can avoid certain request failure problems, but also causes problems such as longer service response time, repeated requests for services, etc. The gray level release mode is to control only a part of small-scale flow or flow requests conforming to certain characteristics to be released to a newly released service end when the service is released online, and gradually release the flow after verification is passed until all the flows enter the newly online service. The gray scale distribution mode can well control the influence range of the abnormality but still cannot avoid the service abnormality. The abnormal service is removed through monitoring, which is another automatic or semi-automatic fault-tolerant mechanism, and when each service is on line, some monitoring indexes can be customized, and when the monitoring indexes are abnormal, the service which is just on line is automatically off line, so that the availability of the whole service is maintained. However, the setting of the monitoring index is not easy, and if the setting is not good, the judgment is easy to be missed or misjudged. In addition, there is also a problem that the service is completely taken off line so that there is no service adjustability.
The schemes such as the just mentioned client retry, gray level release and abnormal service removal by monitoring can reduce the influence caused by the online abnormality, but these methods are all post measures and do not meet the requirement of graceful online.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides an online method and an online system based on micro services, which can realize real and elegant online.
The technical scheme of the invention is realized as follows:
according to one aspect of the present invention, there is provided an online method based on a micro service, the micro service being a service call mode, the online method comprising:
before the service is registered in the registration center, executing an initialization process of an application program corresponding to the service;
after the initialization process is completed, setting a state of the service to a suspended state in which the service cannot be registered with the registry;
performing a functional test on the service having the suspended state;
after passing the functional test, setting the state of the service to an enabled state;
service with enabled status to registry;
the method call interface in the service end is used for registering the service to the registry, wherein the method call interface is an interface without parameters, and the service registered to the registry is callable to the client.
According to an embodiment of the present invention, performing a functional test on a service having a suspended state includes: the test cases of the service are executed by the test platform to automatically perform functional testing on the service.
According to an embodiment of the present invention, the functional test performed on the service having the suspended state is a manual test.
According to an embodiment of the present invention, an initialization process is initiated by a developer of an application program and a method call interface is invoked by the developer to register a service with a registry.
According to another aspect of the present invention, there is provided an online system based on a micro service, the micro service being a service call mode, the online system comprising:
a registry for providing services registered with the registry to the client;
a service governance platform for registering the service into the service governance platform after the initialization process is completed, and setting a state of the service to a suspended state, wherein in the suspended state the service cannot be registered to the registry; and is further configured to set a state of the service to an enabled state after the service having the suspended state passes the functional test;
the service end of the application program corresponding to the service is provided with a method calling interface for calling the service, the method calling interface is an interface without parameters, and the service end is used for registering the service to a registration center by utilizing the method calling interface in the service end.
According to an embodiment of the present invention, the online system further includes: and the test platform is used for executing the test cases of the service after receiving the notification of the service governance platform so as to automatically perform functional test on the service.
According to an embodiment of the present invention, the functional test performed on the service having the suspended state is a manual test.
According to an embodiment of the present invention, an initialization process is initiated by a developer of an application program and a method call interface is invoked by the developer to register a service with a registry.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a microservice-based online method according to an embodiment of the present invention.
Fig. 2 is a block diagram of a microservice-based online system according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
Aiming at the problem of online abnormity in the prior art, the most fundamental is to grasp the time for registering the service to the registry, and the caller can be ensured not to have abnormity only by registering the service to the registry under the condition of ensuring that the service is available. Based on the method, the invention provides an online method based on the micro-service. Fig. 1 is a flowchart of a microservice-based online method according to an embodiment of the present invention. Fig. 2 is a block diagram of a microservice-based online system according to an embodiment of the present invention. As shown in connection with fig. 1 and 2, the method of the present invention includes the following steps S140-S148.
In step S140, before the service is registered in the registry 202, an initialization process of an application corresponding to the service is performed. Applications are typically not directly serviced upon start-up, each of which has an initialization process that may include loading configuration, connecting databases, etc. The initialization process may also include other flows.
The key point of the present invention is to control the point in time when a service is registered with the registry 202, and the service is registered with the registry 202 after the initialization process is completed.
After the initialization process of step S140 is completed, the service is registered to the registry 202 by using a method call interface in the server, where the method call interface is an interface without parameters. The services registered with registry 202 are referred to as services that can be invoked by clients. Since the initialization process is different for each application, the initialization process is typically determined by the application itself. Therefore, a method call interface may be added to the server of the remote procedure call, where the method call interface does not have any parameters and only plays a role of notification, and after the initialization procedure is completed, the method call interface is called, and the server of the remote procedure call registers the service instance in the registry 202.
One of the main improvements of the present invention is that it is possible to register the micro-control service to the point of time of the registry 202 more finely, thereby achieving the purpose of graceful online, i.e., online process without service interruption and service abnormality.
In some embodiments, a developer of an application (e.g., a development engineer of a business application) may self-maintain an initialization process for the application. And the method call interface may also be invoked by a developer. Most of the problems can be solved by registering the service in the registry 202 after the initialization process is completed. However, this requires a high level of demands on the application developer, who must know the application very much to ensure that the timing of calling the method call interface is correct.
Thus, in addition to the first security of the method call interface provided by the server, the present invention provides a second security in that a console of the registry 202, referred to as the service administration platform 204, is added. When an application invokes a registration interface, the service is not registered directly with registry 202, but rather with service administration platform 204, and adds a state to the service registered with service administration platform 204, which may be one of a suspended state and an enabled state. As shown in fig. 1 and 2, the step of registering the service with the registry 202 may include the following steps S142-S148.
S142, after the initialization process is completed, the service is registered in the service administration platform 204, and the state of the service is set to a suspended state in which the service cannot be registered in the registry 202. When an application registers with service remediation platform 204, its state defaults to a suspended state. For the suspended state service, the service administration platform 204 will not register its information with the registry 202, so the client will not have the information of the service provider at the registry 202 for a while. But at this point service remediation platform 204 is available to the service provider information, service remediation platform 204 can notify test platform 206 or a tester to perform functional testing on the newly released service.
S144, performing functional test on the service with the suspended state.
S146, after passing the functional test, the service administration platform 204 sets the state of the service to the enabled state.
S148, the service administration platform 204 brings the service with the enabled status to the registry 202. That is, after the functional test passes, the service state is changed to the enabled state, at which time the service administration platform 204 registers the service with the registry 202, which can be read and invoked by all clients.
It should be appreciated that while the service administration platform 204 maintains the state of the service above, this state may also be maintained directly in the registry 202, and if the service state is maintained in the registry 202, the client needs to be adapted to read only the service in the registry 202 in which the state is enabled, to achieve the same effect.
The functional test may be automatic or manual. In an embodiment where the functional test is automatic, the functional test performed at step S144 may be performed by: the service administration platform 204 notifies the test platform 206 and, upon receipt of the notification, the test platform 206 executes the test cases of the service to automatically perform functional testing on the service. The test platform 206 may not be needed if manual testing is performed, and thus the test platform 206 is not necessary in the present invention.
In summary, the invention adds two stuck points in the original micro-service registration process, firstly adds a method call interface in the code of the service end, and the interface is controlled and called by an application developer, thereby ensuring that the application is initialized when the service is registered. The second time after registration of the service, a state (suspended or started) is added to the service, providing an opportunity to verify the availability of the service before it is actually exposed to the caller. As one more control operation of the service state is added, the invention can be used together with the service management platform. It should be understood that the two-click procedure mentioned in the present invention may also be used separately.
The invention reduces the overall failure rate of the micro service online, ensures the stable operation of the service, improves the user experience and achieves the real and elegant online through the newly added two-time point clamping process.
One specific example of a process for a client to invoke a service is described below in connection with fig. 2. As shown in fig. 2, it is assumed that there is one service, whose service providers are B and C, and whose caller is client application a.
The process of calling the service by the client A comprises the following steps:
(1) client a requests registry 202 to obtain a list of service providers.
(2) Registry 202 returns service B and service C to client a.
(3) Client a invokes service B and service C.
Assuming that a new service D is on-line at this time, the procedure from the start of the on-line to the completion of the on-line is as follows:
(4) a service D is newly started.
(5) After the initialization of the application is completed, a method calling interface is called to register the service D with the service administration platform 204.
(6) Service remediation platform 204 internally registers service D and sets the state to the "suspended" state and does not register service D with registry 202. At this point client a will not be able to acquire service D when acquiring the service provider list to registry 202.
(7) Service remediation platform 204 notifies test platform 206: service D initialization is complete.
(8) The test platform 206 begins executing the automated test cases for service D, automatically performing functional testing on service D.
(9) The test platform 206 notifies the service abatement platform 204 that the functional test is complete after the test is passed.
In some embodiments, the automated test may not be performed by the test platform 206, and in such embodiments, three steps (7), (8), and (9) may be skipped and manual functional testing performed manually. Likewise, the service state is manually changed to an "enabled" state on service remediation platform 204 after the functional test is completed.
At this point, the online process ends, and the client a may acquire the service D when acquiring the service provider list from the registry 202.
The invention can be combined with the mechanisms of client retry, gray level release, abnormal service removal by monitoring and the like to ensure the reliability of the program to a greater extent.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. A micro-service-based online method is characterized in that,
the micro-service is a service calling mode, and the online method comprises the following steps:
before the service is registered in a registry, executing an initialization process of an application program corresponding to the service;
registering the service in a service administration platform after the initialization process is completed, and setting a state of the service registered in the service administration platform to a suspended state in which the service cannot be registered in the registry;
performing a functional test on the service having the suspended state;
after passing the functional test, setting a state of the service to an enabled state;
registering the service with the enablement status with the registry;
and registering the service to the registry by using a method call interface in a service end, wherein the method call interface is an interface without parameters, and the service registered to the registry is callable for a client.
2. The microservice-based online method of claim 1 wherein performing the functional test on the service with the suspended state comprises:
and executing the test cases of the service through a test platform to automatically perform the functional test on the service.
3. The microservice-based online method of claim 1 wherein the functional test performed on the services with the suspended state is a manual test.
4. The microservice-based online method of claim 1 wherein,
the initialization process is initiated by a developer of the application program and the method call interface is invoked by the developer to register the service with the registry.
5. An online system based on micro services, wherein the micro services are a service invocation mode, the online system comprising:
a registry for providing services registered with the registry to clients;
a service administration platform for registering the service into the service administration platform after the initialization process is completed, and setting a state of the service to a suspended state in which the service cannot be registered to the registry; and further for setting a state of the service to an enabled state after the service having the suspended state passes a functional test;
the service end of the application program corresponding to the service is provided with a method calling interface for calling the service, the method calling interface is an interface without parameters, and the service end is used for registering the service to the registry by utilizing the method calling interface in the service end.
6. The microservice-based online system of claim 5 further comprising:
and the test platform is used for executing the test cases of the service after receiving the notification of the service governance platform so as to automatically perform the function test on the service.
7. The microservice-based online system of claim 5, wherein the functional test performed on the service having the suspended state is a manual test.
8. The microservice-based online system of claim 5 wherein the microservice-based online system is configured to provide a plurality of microservices,
the initialization process is initiated by a developer of the application program and the method call interface is invoked by the developer to register the service with the registry.
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