WO2019228515A1

WO2019228515A1 - Remote procedure call protocol self-adaptation method, related device, and server

Info

Publication number: WO2019228515A1
Application number: PCT/CN2019/089607
Authority: WO
Inventors: 李书旭; 魏哲
Original assignee: 华为技术有限公司
Priority date: 2018-05-31
Filing date: 2019-05-31
Publication date: 2019-12-05
Also published as: CN110557357B; CN110557357A; CN115426391A

Abstract

Embodiments of the present application provide a remote procedure call protocol self-adaptation method, a related device, and a server. The method comprises: a client sends a first request message to a registry center, the registry center storing, for each service among a plurality of services, the communication address of and the communication protocols supported by the service end where the service is located; the client receives the communication address of and the communication protocol supported by a first service end sent by the registry center; according to a preset selection strategy, the client selects, from among the communication protocols supported by the client and from among the communication protocols supported by the first service end, a first communication protocol supported by both the client and the first service end; the client calls a first service according to the first communication protocol and the communication address of the first service end. By means of the embodiments of the present application, a suitable communication protocol can be self-adaptively selected for calling between services.

Description

Remote procedure call protocol adaptive method, related device and server

Technical field

The present application relates to the field of computer technology, and in particular, to a remote procedure call protocol adaptive method, a related device, and a server.

Background technique

Remote procedure call (RPC) is a common distributed system communication mechanism and development method. It allows developers to call remote services like local services. The caller is transparent about network communication, parameter encoding, and other details. You don't even need to be aware of where the remote service is deployed. RPC provides powerful remote calling capabilities without losing the semantic conciseness of local calls, and thus has been widely used in the field of distributed computing, especially in service-oriented architectures. The services in a distributed system usually discover each other through naming services. FIG. 1 is a schematic diagram of an RPC scenario in the prior art. The scenario includes a service consumer, a service provider, a service operation container, a registry, and a monitor. ), The RPC process includes:

1. The service running container starts, loads, and runs the service provider;

2. After the service provider starts up, it can register its available services with the registration center. The registered information includes, but is not limited to, the Internet Protocol Address (IP) and port information exposed to the outside world;

3. After the service consumer starts, he subscribes the services he needs to the registration center, which can be called the target service.

4. The registration center sends the registration information of the service provider providing the target service to the service consumer. In addition, if the target service information is changed, the registration center will also send the changed information to the service consumer.

5. The service consumer selects one service provider to call the target service from the service providers fed back by the registration center based on the load balancing algorithm, and if the call fails, selects another service provider to call the target service.

6. Service consumers and service providers accumulate the number of calls and call times for each service in memory, and send the statistical data to the monitoring center according to a preset time period, in order to control the call of each service.

At present, service consumers need to communicate based on communication protocols when calling services from service providers. The current practice is to configure at least one communication protocol for each service on the service consumer in advance. When a communication protocol supported by a service provider When there is an update (for example, an upgrade), the service consumer cannot perceive it, which may cause the service consumer to fail to use the updated communication protocol to normally call the service provided by the certain service. That is to say, the configuration of the communication protocol in the prior art may cause the service consumer to fail to call the service from the service provider normally.

Summary of the Invention

The embodiment of the present application discloses a remote procedure call protocol adaptive method, a related device and a server, which can adaptively select a suitable communication protocol for calling between services.

In a first aspect, an embodiment of the present application provides a remote procedure call protocol adaptation method, which includes:

The client sends a first request message to the registration center, where the registration center stores the communication address of the server where each of the multiple services is located and the supported communication protocol; the first request message is used to request the multiple services The communication address of the first server where the first service in the server is located and the communication protocol supported by the first server;

Receiving, by the client, the communication address of the first server and a supported communication protocol sent by the registration center;

The client selects a first communication supported by the client and the first server from a communication protocol supported by the client and a communication protocol supported by the first server according to a preset selection policy. protocol;

The client invokes the first service according to the first communication protocol and a communication address of the first server.

By executing the above method, the client sends a first request message to the registration center, and the registration center sends the communication address of the first server and the supported communication protocol to the client according to the first request message, and then the client filters out according to a preset selection policy A first communication protocol supported by both the client and the first server, and then the client invokes the first service according to the first communication protocol and a communication address of the first server. In this process, the client can adaptively select an appropriate communication protocol to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

In yet another optional solution, the method includes: the client updates the selection policy, and different selection rules specify different filtering rules. In this way, when that type of protocol is needed, the corresponding selection strategy can be selected first, and then the required communication protocol is selected through the selection strategy.

In another optional solution, after the client invokes the first service according to the first communication protocol and the communication address of the first server, the method further includes: the client receives the registration center The change information of the first server that is sent, where the change information includes a communication address and / or a supported communication protocol. In this way, even if the related information of the first service is changed, the client can still call the first service smoothly.

In a second aspect, an embodiment of the present application provides a remote procedure call protocol adaptation method, which includes:

The client sends a first request message to the registration center, where the registration center stores the communication address of the server where each of the multiple services is located and the supported communication protocol; the first request message is used to request the multiple services The communication address of the first server where the first service in the server is located, and the first request message carries a communication protocol supported by the client;

Receiving, by the client, a first communication protocol and a communication address of the first server sent by the registration center, where the first communication protocol is a communication protocol supported by both the client and the first server;

By executing the above method, the client sends a first request message to the registration center, and the registration center determines the first communication protocol supported by the client and the first server according to the first request message and the information registered by each server to the registration center. And then sending the first communication protocol and the communication address of the first server to the client, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the registration center can adaptively select an appropriate communication protocol for the client to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

In a third aspect, an embodiment of the present application provides a remote procedure call protocol adaptation method, which includes:

The registration center receives a first request message sent by a client, and the registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located; the first request message is used to request the multiple The communication address of the first server where the first service in the service is located and the communication protocol supported by the first server;

Sending, by the registration center, the communication address of the first server and a supported communication protocol to the client; the communication protocol supported by the first server is used to determine a first communication protocol, and the first communication protocol is A communication protocol supported by both the client and the first server; the first communication protocol and the communication address of the first server are used by the client to call the first from the first server service.

In another optional solution, before the registration center receives the first request message sent by the client, the method further includes: receiving, by the registration center, the communication address and Supported communication protocols; the registration center stores the communication address of the first server and the supported communication protocols. It can be understood that the first server registers the related information of the first service to the registration center, so that the registration center can provide the information of the first service to other services, so that other services can call the first service smoothly.

In another optional solution, after the registration center sends the communication address of the first server and the supported communication protocol to the client, the method further includes: receiving, by the registration center, the first server The change information of the first server, wherein the change information includes a communication address and / or a supported communication protocol; and the registration center sends the change information of the first server to the client. In this way, even if the related information of the first service is changed, the client can still call the first service smoothly.

In a fourth aspect, an embodiment of the present application provides a remote procedure call protocol adaptation method, which includes:

The registration center receives a first request message sent by a client, and the registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located; the first request message is used to request the multiple A communication address of a first server where a first service in the service is located, and the first request message carries a communication protocol supported by the client;

The registration center determines a communication protocol supported by the communication address of the first server, and selects the communication protocol supported by the first server and the communication protocol supported by the client according to a preset selection policy. A first communication protocol supported by both the first server and the client;

The registration center sends the first communication protocol and the communication address of the first server to the client, and the first communication protocol and the communication address of the first server are used by the client The first server invokes the first service.

By executing the above method, the client sends a first request message to the registration center, and the registration center determines the first communication protocol supported by the client and the first server according to the first request message and the information registered by each server to the registration center. And then sending the first communication protocol and the communication address of the first server to the client, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the registration center can adaptively select a suitable communication protocol for the client to communicate with the first server according to the selection strategy, and optimize the selection scheme of the communication protocol.

In yet another optional solution, the method includes: the registry updates the selection policy, and different selection policies specify different filtering rules. That is to say, the registration center maintains the selection strategy centrally, so that when the selection protocol standard needs to be changed, it can be implemented by directly modifying the selection strategy in the registration center. No matter which service requests the communication protocol supported by the first service , You can get from the registry to meet the latest standards of communication protocols. That is, the selection strategy is centrally maintained in the registry, which greatly reduces maintenance costs.

In a fifth aspect, an embodiment of the present application provides a client, and the client includes:

A communication unit, configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located and a communication protocol supported by the first server;

The communication unit is further configured to receive a communication address of the first server and a supported communication protocol sent by the registration center;

A processing unit, configured to select a first protocol supported by the client and the first server from the communication protocols supported by the client and the first server supported according to a preset selection policy letter of agreement;

The processing unit is further configured to call the first service according to the first communication protocol and a communication address of the first server.

It can be seen that the client sends a first request message to the registration center, and the registration center sends the communication address of the first server and the supported communication protocol to the client according to the first request message, and then the client filters out the message according to a preset selection policy. A first communication protocol supported by both the client and the first server, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the client can adaptively select an appropriate communication protocol to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

In yet another optional solution, the processing unit is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different. In this way, when that type of protocol is needed, the corresponding selection strategy can be selected first, and then the required communication protocol is selected through the selection strategy.

In still another optional solution, the communication unit is further configured to receive the first service after the processing unit invokes the first service according to the first communication protocol and the communication address of the first server. The change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol. In this way, even if the related information of the first service is changed, the client can still call the first service smoothly.

In a sixth aspect, an embodiment of the present application provides a client, and the client includes:

A communication unit, configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located, and the first request message carries a communication protocol supported by the client;

The communication unit is further configured to receive a first communication protocol and a communication address of the first server sent by the registration center, where the first communication protocol is supported by both the client and the first server. letter of agreement;

A processing unit, configured to invoke the first service according to the first communication protocol and a communication address of the first server.

It can be seen that the client sends a first request message to the registration center, and the registration center determines the first communication protocol supported by the client and the first server according to the first request message and the information registered by each server to the registration center. The first communication protocol and the communication address of the first server are then sent to the client, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the registration center can adaptively select an appropriate communication protocol for the client to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

In a seventh aspect, an embodiment of the present application provides a registration center, where the registration center includes:

A communication unit, configured to receive a first request message sent by a client, the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request The communication address of the first server where the first service of the plurality of services is located and the communication protocol supported by the first server;

The communication unit is further configured to send the communication address of the first server and a supported communication protocol to the client; the communication protocol supported by the first server is used to determine a first communication protocol, and the first The communication protocol is a communication protocol supported by both the client and the first server; the first communication protocol and the communication address of the first server are used by the client to call from the first server The first service.

It can be seen that the client sends a first request message to the registration center, and the registration center sends the communication address of the first server and the supported communication protocol to the client according to the first request message, and then the client filters out the message according to a preset selection policy. The first communication protocol supported by both the client and the first server, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the client can adaptively select an appropriate communication protocol to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

In another optional solution, before the communication unit receives the first request message sent by the client: the communication unit is further configured to receive the communication address of the first server sent by the first server And a supported communication protocol; the processing unit is configured to store a communication address of the first server and a supported communication protocol. It can be understood that the first server registers the related information of the first service to the registration center, so that the registration center can provide the information of the first service to other services, so that other services can call the first service smoothly.

In another optional solution, after the communication unit sends the communication address of the first server and the supported communication protocol to the client, the communication unit is further configured to: receive the first server Change information of the first server, the change information including a communication address and / or a supported communication protocol; and sending the change information of the first server to the client. In this way, even if the related information of the first service is changed, the client can still call the first service smoothly.

In an eighth aspect, an embodiment of the present application provides a registration center. The registration center includes:

A communication unit, configured to receive a first request message sent by a client, the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request The communication address of the first server where the first service of the plurality of services is located, and the first request message carries a communication protocol supported by the client;

The processing unit is configured to determine a communication protocol supported by the communication address of the first server, and select a communication protocol supported by the first server and the communication protocol supported by the client according to a preset selection policy. The first communication protocol supported by the first server and the client;

The communication unit is further configured to send the first communication protocol and the communication address of the first server to the client, and the first communication protocol and the communication address of the first server are used for the client. The terminal calls the first service from the first server.

In yet another optional solution, the processing unit is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different. That is to say, the registration center maintains the selection strategy centrally, so that when the selection protocol standard needs to be changed, it can be implemented by directly modifying the selection strategy in the registration center. No matter which service requests the communication protocol supported by the first service , You can get from the registry to meet the latest standards of communication protocols. That is, the selection strategy is centrally maintained in the registry, which greatly reduces maintenance costs.

In another optional solution, before the communication unit receives the first request message sent by the client: the communication unit is further configured to receive the communication address of the first server sent by the first server And a supported communication protocol; the processing unit is further configured to store a communication address of the first server and a supported communication protocol. It can be understood that the first server registers the related information of the first service to the registration center, so that the registration center can provide the information of the first service to other services, so that other services can call the first service smoothly.

In a ninth aspect, an embodiment of the present application provides a server configured to run the fifth aspect, or any possible implementation manner of the fifth aspect, or the sixth aspect, or any possible implementation of the sixth aspect. Way described by the client.

In a tenth aspect, an embodiment of the present application provides a server configured to run the seventh aspect, or any possible implementation manner of the seventh aspect, or the eighth aspect, or any possible implementation of the eighth aspect. Registry described by the way.

By implementing the embodiment of the present application, the client sends a first request message to the registration center, and the registration center sends the communication address of the first server and the supported communication protocol to the client according to the first request message, and then the client according to a preset selection policy The first communication protocol supported by the client and the first server is screened out, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the client can adaptively select an appropriate communication protocol to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings used in the embodiments of the present application are described below.

FIG. 1 is a schematic diagram of an RPC scenario in the prior art;

2 is a schematic diagram of an RPC distributed software architecture according to an embodiment of the present application;

3 is a schematic flowchart of a remote procedure call protocol adaptation method according to an embodiment of the present application;

4 is a schematic diagram of a microservice in a cloud-native scene provided by an embodiment of the present application;

5 is a schematic diagram of a communication protocol supported between services provided by an embodiment of the present application;

6 is a schematic flowchart of a remote procedure call protocol adaptation method according to an embodiment of the present application;

7 is a schematic structural diagram of a client according to an embodiment of the present application;

8 is a schematic structural diagram of a client according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a server according to an embodiment of the present application; FIG.

10 is a schematic structural diagram of a registration center according to an embodiment of the present application;

11 is a schematic structural diagram of a registration center according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a server according to an embodiment of the present application.

Detailed ways

The following describes the embodiments of the present application with reference to the drawings in the embodiments of the present application.

Please refer to FIG. 2. FIG. 2 is a schematic diagram of a distributed software architecture of a PRC provided by an embodiment of the present application. The software architecture includes a service management framework 201 and multiple application terminals. In FIG. 2, only three application terminals are used as an example. Schematically, these three application ends are shown as an application end 202, an application end 203, and an application end 204 in this order. The service governance framework 201 includes a registration center for receiving and maintaining registration information registered by each application end. For example, the registration information may include an application end IP, a port, a supported communication protocol, a name of a service that can be provided, and / Or logos. The registration center is also used to send information to the application side that needs the IP address, port, and supported communication protocol of the application side where the corresponding service is located. Optionally, the registration center may include a protocol adaptation module for determining a communication protocol for two applications that need to communicate.

In addition, each application can include service 2001, programming framework 2002, and distributed communication layer 2003. After an application obtains registration information of another application, the programming framework 2002 in that application can control The service 2001 calls the service 2001 in the other server. The calling process is supported by the distributed communication layer 2003 in the one application side and the distributed communication layer 2003 in the other application side. In FIG. 2, a connection is established between the distributed communication layers of each application side, and a connection is established with the registration center. Each programming framework 2002 may include a serialization / deserialization module and a protocol adaptation module (optional). The communication protocol used in the communication between the one application side and the other application side may be determined by the Or the protocol adaptation module in the registry.

The above distributed software framework can be deployed on a server or a distributed server cluster. In addition, in the above distributed software framework, the application that calls the service can be called the client, and the application that provides the service can be called the server. An application can be a client of one service or a service of another service. end. For example, service 1 can be provided on application 202, service 2 can be provided on application 203, service 3 can be provided on application 204, and if application 202 can call service 2 from application 203, application 203 can be provided from application Service 3 is called on 204. Then, for service 2, application 203 is the server, and for service 3, application 203 is the client.

Please refer to FIG. 3. FIG. 3 is a remote procedure call protocol adaptive method provided by an embodiment of the present application. The method may be implemented based on the distributed software architecture shown in FIG. 2. The method includes but is not limited to the following steps:

Step S300: each server registers the service information provided by itself with the registration center.

Specifically, assuming that each server includes server A, the following description uses server A as an example. The server A uses the name and / or identification of the service that it can provide, the IP of the server A, the port, Information such as supported communication protocols is registered with the registration center. After each server registers the available services in the registry, the registry knows which services each server can provide, the communication addresses of each client, and the supported communication protocols, that is, the registry stores multiple services. The communication address of the server where each service is located and the supported communication protocols. In the embodiment of the present application, two different servers may provide the same service; in addition, one server may support one or more communication protocols.

In the following, the characteristics of the service are described in combination with a cloud native scenario. As shown in FIG. 4, this scenario illustrates microservices based on Java service development and operation framework, microservices based on C service development and operation framework, and microservices based on GO service development and operation framework. These microservices belong to the services described above. In the embodiment of the present application, each microservice can be defined in an interface description language (Interface Description Language, IDL) as a contract, and a compiler tool is provided to generate interface code corresponding to the C, JAVA, or GO language according to the IDL file. For example, an instance of a service with a service name of HelloService can be defined as follows:

After executing the above example, the HelloService service becomes a microservice based on the C service development and operation framework. Based on the same principle, microservices based on Java service development and operation framework, microservices based on C service development and operation framework, microservices based on GO service development and operation framework, and so on can be obtained. Among them, if the microservices based on the C service development and operation framework support the transmission of the ProtoBuf serialized high-performance private protocol A based on Transmission Control Protocol (TCP); each microservice based on the JAVA service development and operation framework supports Netty transfers a high-performance private protocol B based on ProtoBuf serialization; each microservice based on the GO service development and operation framework supports a TCP-based private protocol C; all the services listed above support a target interworking protocol (for example, HTTP) Protocol), the target interworking protocol can be expressed as InterWay, then the characteristics of various types of services are summarized as shown in the table, and the communication protocol schemes that can be used for communication between various types of services are shown in Figure 5, from the figure 5 can be seen:

1. C language-based services C-based services can communicate with each other using a private protocol A.

2. Java language-based services Java-based services can communicate with each other using a private protocol B.

3. GO language-based services. GO language-based services can use the private protocol C to communicate with each other.

4. C-based services, Java-based services, and GO-based services can communicate with each other using the target interworking protocol.

Table 1

服务名称service name	服务类型Service type	支持的互通协议Supported interworking protocols
微服务1Microservice 1	C语言服务C language service	私有协议A、目标互通协议Private agreement A, target interworking agreement
微服务2Microservice 2	C语言服务C language service	私有协议A、目标互通协议Private agreement A, target interworking agreement
微服务3Microservices 3	C语言服务C language service	私有协议A、目标互通协议Private agreement A, target interworking agreement
微服务4Microservices 4	Java语言服务Java Language Services	私有协议B、目标互通协议Private agreement B, target interworking agreement
微服务5Microservices 5	Java语言服务Java Language Services	私有协议B、目标互通协议Private agreement B, target interworking agreement
微服务6Microservices 6	Java语言服务Java Language Services	私有协议B、目标互通协议Private agreement B, target interworking agreement
微服务7Microservices 7	GO语言服务GO Language Services	私有协议C、目标互通协议Private agreement C, target interworking agreement

微服务8Microservices 8	GO语言服务GO Language Services	私有协议C、目标互通协议Private agreement C, target interworking agreement
微服务9Microservices 9	GO语言服务GO Language Services	私有协议C、目标互通协议Private agreement C, target interworking agreement

The characteristics of each service have been described above. The following is an example of server A registering with the registry:

According to the above example, the registered service ID is 65537, and the registered service name is HelloService. The server A can support the private protocol A. When the private protocol A is used for communication, the communication address of the server A includes the IP address 156.103.2.144 and port 22225. The server A also supports the target interworking protocol. When using the target interworking protocol for communication At this time, the communication address of server A includes the IP address 156.103.2.144 and port 22226.

Step S301: The client sends a first request message to the registration center.

Specifically, the first request message is used to request a communication address of a first server where a first service of the multiple services is located and a communication protocol supported by the first server. The first service is a service that the client needs to call.

Step S302: The registration center receives a first request message sent by a client.

Specifically, the first request message may include a service name and / or identification (ID) of the first service, so that after the registration center parses the first request message, the first request message may be first determined according to the service name and / or identification. One service. Then, the registration center determines the server capable of providing the first service according to the information that has been registered in itself. In the embodiment of the present application, the server capable of providing the first service may be referred to as the first server. After the first server is determined, the communication address of the first server may be further determined, for example, information such as IP and port, and a communication protocol supported by the first server.

For example, if the service name carried in the first request message is HelloService, then HelloService is the first service, so the registration center may determine from the stored information that the identifier of the first service requested by the first request message is "65537", and may Determine the information of the first server (endpoints) that provides the first service as ["A: //156.103.2.144: 22225", "Inter: //156.103.2.144: 22226"], that is, determine that the first service supports the private protocol A and the target interworking protocol Inter. When the private protocol A is used to communicate with the first server, the IP address of the first server is 156.103.2.144 and the port is 22225; when the target interworking protocol is used to communicate with the first server, the first The IP address of the server is 156.103.2.144, and the port is 22226.

Step S303: The registration center sends the communication address of the first server and the supported communication protocol to the client.

Step S304: The client receives the communication address of the first server and the supported communication protocol sent by the registration center.

Specifically, the client may receive one or more communication addresses of the first server and the supported communication protocols. When the communication address of the first server and the supported communication protocols is received, the client is directed to the one The first server executes step S305; when receiving the communication addresses and supported communication protocols of multiple first servers, the client only targets one of the first servers (the selection rules of the first server are here (No limitation) Step S305 is performed.

Step S305: The client selects, from the communication protocols supported by the client and the communication protocol supported by the first server, a communication protocol supported by the client and the first server according to a preset selection policy. First communication protocol.

Specifically, the client knows which communication protocols it supports, and according to the feedback from the registration center, it also knows the communication protocols supported by the first server. Therefore, the client can first determine the communication supported by both the client and the first server. Protocol, and then select a first communication protocol from the determined communication protocols according to a preset selection policy. It can be understood that there may be more than one communication protocol supported by the client and the first server, so the client needs to select a communication protocol for communication according to a selection policy. Among them, the selection policy specifies the rules for selecting a communication protocol, for example, specifying a communication protocol with higher security; for example, specifying a communication protocol with the highest transmission efficiency; and so on.

For example, if the client supports the private protocol A and the target interworking protocol, and the first server also supports the private protocol A and the target interworking protocol, then the communication protocols supported by the client and the first server include the private protocol A and the The target interworking protocol. At this time, a communication protocol needs to be selected from the private protocol A and the target interworking protocol as the first communication protocol according to the selection strategy. Which one of the communication protocols is ultimately selected is determined by the selection strategy. For example, if the The communication protocol specifies the selection of a communication protocol with a higher security level, and the selected communication protocol is the private protocol A. If the communication protocol specifies the selection of a communication protocol with better compatibility (for example, capable of supporting more types of object communication), then The selected communication protocol is the target interworking protocol. In addition, after the communication protocol used is determined, a more detailed address can be matched according to the determined communication protocol. For example, if the communication protocol A is used, the communication address that can be matched to the first server includes the IP address 156.103.2.144 And port 22225. If the target interworking protocol is used, the communication addresses that can be matched to the first server include: IP address 156.103.2.144 and port 22226.

Optionally, the client may update the selection policy as required, and different selection policies provide different filtering rules. It is understandable that the choices actually required during operation may change over time. For example, sometimes a more secure communication protocol is needed, sometimes a communication protocol with higher transmission efficiency is needed, and sometimes a stronger interoperability is required. Communication protocol. By changing the selection strategy, developers can ensure that the communication protocols that meet the corresponding characteristics are screened.

Step S306: The client invokes the first service according to the first communication protocol and the communication address of the first server.

Specifically, the client can establish a communication connection with the first server according to the communication address of the first server. After the communication connection is established, the client calls the first service from the first server. Optionally, when the client establishes communication with the first server based on the first communication protocol, the client sends a HelloRequest message to the first server, and accordingly, the first server sends the HelloRequest message to the first server. The client sends a HelloReply message to implement the client's call to the first server. The following briefly introduces the HelloRequest message: If the first service is the HelloService service, the client will execute the following program code in advance:

In the above code, the first line (line 1) is used to define the service to be called as the HelloService service, the second line (line 2) is used to specify the HelloRequest message to send the request for calling the HelloService, and the third line (line 3) It is used to fill the required parameters of the HelloRequest message. The fourth line (line 4) is used to send the HelloRequest message using the sayHello method.

The following describes the first communication protocol as an example. For example, when it is determined that the first communication protocol is the private protocol A and the communication address of the first server is "156.103.2.144:22225", the client attempts to communicate with the communication address "156.103. 2.144: 22225 "establishes a socket connection, and serializes the msg_hello message in the HelloRequest message according to the private protocol A format, and sends the message. Correspondingly, the first server listens to the address "156.103.2.144:22225" to obtain the message sent by the client, and judges using the communication protocol "A" according to the address, and deserializes the message according to the communication protocol "A", and Make a call to the first service.

In the embodiment of the present application, when the information of the first server changes (for example, the type or version of the supported communication protocol, the communication address, etc. changes), the first server sends the changed information to the registration center. The client can subscribe to the change information of the first server from the registration center. Correspondingly, after determining that the related information of the first service has changed, the registration center sends the change information to the client, so that the client can know the first service in a timely manner. The latest information is beneficial for the client to call the first service. The related information of the first service includes a type or version of a communication protocol supported by the first server where the first service is located, a communication address, and the like.

In the method described in FIG. 3, the client sends a first request message to the registration center, and the registration center sends the communication address of the first server and the supported communication protocol to the client according to the first request message, and then the client according to a preset The selection strategy filters out the first communication protocol supported by the client and the first server, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the client can adaptively select an appropriate communication protocol to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized.

Please refer to FIG. 6, which is a remote procedure call protocol adaptive method provided by an embodiment of the present application. The method may be implemented based on the distributed software architecture shown in FIG. 2. The method includes, but is not limited to, the following steps:

Step S600: each server registers the service information provided by itself with the registration center.

Specifically, step S600 may refer to step S300, and details are not described herein again.

Step S601: The client sends a first request message to the registration center.

Specifically, step S601 may refer to step S301, and details are not described herein again.

Step S602: The registration center receives a first request message sent by a client.

Specifically, step S602 may refer to step S302. In addition, the first request message also carries information about a communication protocol supported by the client. For example, the form may be http: // xxx? protocol = "A, Interway", according to the information carried, it can be known that the client supports the private protocol A and the target interworking protocol Interway.

Step S603: the registration center determines a communication protocol supported by the communication address of the first server, and selects from a communication protocol supported by the first server and a communication protocol supported by the client according to a preset selection policy, Selecting a first communication protocol supported by both the first server and the client.

Specifically, the registration center can determine the communication protocol supported by the client and the communication protocol supported by the first server according to the information registered by each server in the registration center and the information carried in the first request message. Therefore, the registration center can First, the communication protocols supported by the client and the first server are determined, and then the first communication protocol is filtered from the determined communication protocols according to a preset selection policy. It can be understood that there may be more than one communication protocol supported by the client and the first server, so the registration center needs to select a communication protocol for communication according to the selection strategy. Among them, the selection policy specifies the rules for selecting a communication protocol, for example, specifying a communication protocol with higher security; for example, specifying a communication protocol with the highest transmission efficiency; and so on.

For example, if the client supports the private protocol A and the target interworking protocol, and the first server also supports the private protocol A and the target interworking protocol, then the communication protocols supported by the client and the first server include the private protocol A and the The target interworking protocol. At this time, a communication protocol needs to be selected from the private protocol A and the target interworking protocol as the first communication protocol according to the selection strategy. Which one of the communication protocols is ultimately selected is determined by the selection strategy. For example, if the The communication protocol specifies the selection of a communication protocol with a higher security level, and the selected communication protocol is the private protocol A. If the communication protocol specifies the selection of a communication protocol with better compatibility (for example, it can support more types of object communication), then The selected communication protocol is the target interworking protocol. In addition, after the communication protocol used is determined, a more detailed address can be matched according to the determined communication protocol. For example, if the communication protocol A is used, the communication address that can be matched to the first server includes the IP address 156.103.2.144 And port 22225. If the target interworking protocol is used, the communication addresses that can be matched to the first server include: IP address 156.103.2.144 and port 22226.

Optionally, the registration center may update the selection policy according to needs, and different selection policies provide different filtering rules. It is understandable that developers may have different ideas about the choice of communication protocols over time. For example, sometimes a communication protocol with higher security is required, sometimes a communication protocol with higher transmission efficiency is required, and sometimes interworking is required. A stronger communication protocol. By changing the selection strategy, developers can ensure that the communication protocols that meet the corresponding characteristics are screened. In addition, because the selection strategy is deployed on the registry, when developers want to change the selection strategy, making changes directly on the registry can ensure that all subsequent service invocation processes use the new selection strategy and maintenance costs low.

Step S604: The registration center sends the first communication protocol and the communication address of the first server to the client.

Step S605: The client receives the first communication protocol and the communication address of the first server sent by the registration center.

Step S606: The client invokes the first service according to the first communication protocol and the communication address of the first server.

Specifically, for step S606, reference may be made to step S306, and details are not described herein again.

In the method described in FIG. 6, the client sends a first request message to the registration center, and the registration center determines, based on the first request message and the information registered by each server to the registration center, that both the client and the first server support. The first communication protocol, and then sends the first communication protocol and the communication address of the first server to the client, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the registration center can adaptively select an appropriate communication protocol for the client to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized. In addition, the selection strategy is deployed on the registry, with low maintenance costs.

The method described in the embodiment of the present application has been described in detail above, and the device in the embodiment of the present application is provided below.

Please refer to FIG. 7, which is a schematic structural diagram of a client 70 provided by an embodiment of the present application. The client may include a communication unit 701 and a processing unit 702. If corresponding to FIG. 2, the communication unit 701 is configured to perform operations required by the distributed communication layer 2003 in FIG. 2, and the processing unit 702 is configured to perform services required by the service 2001 and the programming framework 2002 in FIG. 2. operating. The detailed description of the communication unit 701 and the processing unit 702 is as follows.

The communication unit 701 is configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service is located in a plurality of services and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located and a communication protocol supported by the first server;

The communication unit 701 is further configured to receive a communication address of the first server and a supported communication protocol sent by the registration center;

The processing unit 702 is configured to select, from a communication protocol supported by the client and a communication protocol supported by the first server, a first protocol supported by the client and the first server according to a preset selection policy. letter of agreement;

The processing unit 701 is further configured to invoke the first service according to the first communication protocol and a communication address of the first server.

In yet another optional solution, the processing unit 702 is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different.

In another optional solution, the communication unit 701 is further configured to receive after the processing unit 702 invokes the first service according to the first communication protocol and the communication address of the first server. The change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.

It should be noted that the implementation of each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 3.

Please refer to FIG. 8, which is a schematic structural diagram of a client 80 provided by an embodiment of the present application. The client may include a communication unit 801 and a processing unit 802. If corresponding to FIG. 2, the communication unit 801 is configured to perform operations required by the distributed communication layer 2003 in FIG. 2, and the processing unit 802 is configured to perform services required by the service 2001 and the programming framework 2002 in FIG. 2. operating. The detailed description of the communication unit 801 and the processing unit 802 is as follows.

The communication unit 801 is configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service is located in a plurality of services and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located, and the first request message carries a communication protocol supported by the client;

The communication unit 801 is further configured to receive a first communication protocol and a communication address of the first server sent by the registration center, where the first communication protocol is supported by both the client and the first server. letter of agreement;

The processing unit 802 is configured to call the first service according to the first communication protocol and a communication address of the first server.

In still another optional solution, the communication unit is further configured to receive the first service after the processing unit invokes the first service according to the first communication protocol and the communication address of the first server. The change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.

In yet another optional solution, the processing unit 802 is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different.

In another optional solution, the communication unit 801 is further configured to: after the processing unit invokes the first service according to the first communication protocol and the communication address of the first server, receive The change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.

It should be noted that the implementation of each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 6.

Please refer to FIG. 9, which is a server 90 provided in an embodiment of the present application. The server 90 includes a processor 901, a memory 902, and a communication interface 903. The processor 901, the memory 902, and the communication interface 903 are connected to each other through a bus .

The memory 902 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or A portable read-only memory (CD-ROM). The memory 902 is used for related instructions and data.

The processor 901 may be one or more central processing units (CPUs). When the processor 901 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 901 is configured to read instructions stored in the memory 902 to perform operations performed by the processing unit in the example shown in FIG. 7 or FIG. 8, and the communication interface 903 is configured to execute the embodiment shown in FIG. 7 or FIG. 8. Operation performed by the communication unit of the device. That is, the server is used for the client in FIG. 7 or FIG. 8.

Please refer to FIG. 10, which is a schematic structural diagram of a registration center 100 according to an embodiment of the present application. The registration center may include a communication unit 1001 and a processing unit 1002. The detailed description of the communication unit 1001 and the processing unit 1002 is as follows.

The communication unit 1001 is configured to receive a first request message sent by a client. The registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located. The first request message is used to request all The communication address of the first server where the first service of the plurality of services is located and the communication protocol supported by the first server;

The communication unit 1001 is further configured to send the communication address of the first server and a supported communication protocol to the client; the communication protocol supported by the first server is used to determine a first communication protocol, and the first The communication protocol is a communication protocol supported by both the client and the first server; the first communication protocol and the communication address of the first server are used by the client to call from the first server The first service.

In another optional solution, before the communication unit 1001 receives the first request message sent by the client:

The communication unit 1001 is further configured to receive a communication address of the first server and a supported communication protocol sent by the first server;

The processing unit 1002 is configured to store a communication address of the first server and a supported communication protocol.

In another optional solution, after the communication unit 1001 sends the communication address of the first server and the supported communication protocol to the client, the communication unit 1001 is further configured to:

Receiving the change information of the first server sent by the first server, where the change information includes a communication address and / or a supported communication protocol;

Sending the change information of the first server to the client.

Please refer to FIG. 11, which is a schematic structural diagram of a registration center 110 according to an embodiment of the present application. The registration center may include a communication unit 1101 and a processing unit 1102. The detailed description of the communication unit 1101 and the processing unit 1102 is as follows.

The communication unit 1101 is configured to receive a first request message sent by a client. The registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located. The first request message is used to request all The communication address of the first server where the first service of the plurality of services is located, and the first request message carries a communication protocol supported by the client;

The processing unit 1102 is configured to determine a communication protocol supported by the communication address of the first server, and select a communication protocol supported by the first server and the communication protocol supported by the client according to a preset selection policy. The first communication protocol supported by the first server and the client;

The communication unit 1101 is further configured to send the first communication protocol and the communication address of the first server to the client, and the first communication protocol and the communication address of the first server are used for the client. The terminal calls the first service from the first server.

In yet another optional solution, the processing unit 1102 is further configured to update the selection policy, and different selection policies provide different filtering rules.

In another optional solution, before the communication unit 1101 receives the first request message sent by the client:

The communication unit 1101 is further configured to receive a communication address of the first server and a supported communication protocol sent by the first server;

The processing unit 1102 is further configured to store a communication address of the first server and a supported communication protocol.

In another optional solution, after the communication unit 1101 sends the communication address of the first server and the supported communication protocol to the client, the communication unit 1101 is further configured to:

Sending the change information of the first server to the client.

Please refer to FIG. 12, which is a server 120 according to an embodiment of the present application. The server 120 includes a processor 1201, a memory 1202, and a communication interface 1203. The processor 1201, the memory 1202, and the communication interface 1203 are connected to each other through a bus .

The memory 1202 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or A portable read-only memory (CD-ROM). The memory 1202 is used for related instructions and data.

The processor 1201 may be one or more central processing units (CPUs). When the processor 1201 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1201 is configured to read instructions stored in the memory 1202 to perform operations performed by the processing unit in the example shown in FIG. 10 or FIG. 11, and the communication interface 1203 is configured to execute the embodiment shown in FIG. 10 or FIG. 11. Operation performed by the communication unit of the device. That is, the server is used for the registration center in FIG. 10 or FIG. 11.

It should be noted that the above server 90 may be a single server or a server cluster, and the server 120 may be a single server, a server cluster, or a server cluster. In addition, the server 90 and the server 120 may be two different servers (or server clusters), or may be the same server (or server cluster).

In summary, the client sends a first request message to the registration center, and the registration center determines the first communication protocol supported by the client and the first server according to the first request message and the information registered by each server to the registration center. And then sending the first communication protocol and the communication address of the first server to the client, and then the client invokes the first service according to the first communication protocol and the communication address of the first server. In this process, the registration center can adaptively select an appropriate communication protocol for the client to communicate with the first server according to the selection strategy, and the selection scheme of the communication protocol is optimized. In addition, the selection strategy is deployed on the registry, with low maintenance costs.

A person of ordinary skill in the art may understand that all or part of the processes in the method of the foregoing embodiments are implemented. The processes may be completed by a computer program instructing related hardware. The program may be stored in a computer-readable storage medium. When the program is executed, It may include the processes of the method embodiments described above. The foregoing storage media include: ROM or random storage memory RAM, magnetic disks, or optical discs, which can store various program code media.

Claims

A remote procedure call protocol adaptive method, which is characterized by:

The client sends a first request message to the registration center, where the registration center stores the communication address of the server where each of the multiple services is located and the supported communication protocol; the first request message is used to request the multiple services The communication address of the first server where the first service in the server is located and the communication protocol supported by the first server;

Receiving, by the client, the communication address of the first server and a supported communication protocol sent by the registration center;

The client selects a first communication supported by the client and the first server from a communication protocol supported by the client and a communication protocol supported by the first server according to a preset selection policy. protocol;

The client invokes the first service according to the first communication protocol and a communication address of the first server.
The method according to claim 1, wherein the method comprises:

The client updates the selection policy, and different selection rules specify different filtering rules.
The method according to claim 1 or 2, wherein after the client invokes the first service according to the first communication protocol and a communication address of the first server, the method further comprises:

The client receives the change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.
A remote procedure call protocol adaptive method, which is characterized by:

The client sends a first request message to the registration center, where the registration center stores the communication address of the server where each of the multiple services is located and the supported communication protocol; the first request message is used to request the multiple services The communication address of the first server where the first service in the server is located, and the first request message carries a communication protocol supported by the client;

Receiving, by the client, a first communication protocol and a communication address of the first server sent by the registration center, where the first communication protocol is a communication protocol supported by both the client and the first server;

The client invokes the first service according to the first communication protocol and a communication address of the first server.
The method according to claim 4, wherein after the client invokes the first service according to the first communication protocol and a communication address of the first server, the method further comprises:

The client receives the change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.
A remote procedure call protocol adaptive method, which is characterized by:

The registration center receives a first request message sent by a client, and the registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located; the first request message is used to request the multiple The communication address of the first server where the first service in the service is located and the communication protocol supported by the first server;

Sending, by the registration center, the communication address of the first server and a supported communication protocol to the client; the communication protocol supported by the first server is used to determine a first communication protocol, and the first communication protocol is A communication protocol supported by both the client and the first server; the first communication protocol and the communication address of the first server are used by the client to call the first from the first server service.
The method according to claim 6, wherein before receiving the first request message sent by the client, the registration center further comprises:

Receiving, by the registration center, the communication address of the first server and a supported communication protocol sent by the first server;

The registration center stores a communication address of the first server and a supported communication protocol.
The method according to claim 6 or 7, wherein after the registering center sends the communication address of the APEX MOTORSPORTS first server and the supported communication protocol to the client, the method further comprises:

Receiving, by the registration center, the change information of the first server sent by the first server, where the change information includes a communication address and / or a supported communication protocol;

Sending, by the registration center, the change information of the first server to the client.
A remote procedure call protocol adaptive method, which is characterized by:

The registration center receives a first request message sent by a client, and the registration center stores a communication address and a supported communication protocol of a server where each of the multiple services is located; the first request message is used to request the multiple A communication address of a first server where a first service in the service is located, and the first request message carries a communication protocol supported by the client;

The registration center determines a communication protocol supported by the communication address of the first server, and selects the communication protocol supported by the first server and the communication protocol supported by the client according to a preset selection policy. A first communication protocol supported by both the first server and the client;

The registration center sends the first communication protocol and the communication address of the first server to the client, and the first communication protocol and the communication address of the first server are used by the client The first server invokes the first service.
The method according to claim 9, wherein the method comprises:

The registration center updates the selection policy, and different selection policies specify different filtering rules.
The method according to claim 9 or 10, wherein before receiving the first request message sent by the client, the registration center further comprises:

Receiving, by the registration center, the communication address of the first server and a supported communication protocol sent by the first server;

The registration center stores a communication address of the first server and a supported communication protocol.
The method according to any one of claims 9-11, wherein after the registering center sends the communication address of the first server and the supported communication protocol to the client, the method further comprises:

Receiving, by the registration center, the change information of the first server sent by the first server, where the change information includes a communication address and / or a supported communication protocol;

Sending, by the registration center, the change information of the first server to the client.
A client characterized by comprising:

A communication unit, configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located and a communication protocol supported by the first server;

The communication unit is further configured to receive a communication address of the first server and a supported communication protocol sent by the registration center;

A processing unit, configured to select a first protocol supported by the client and the first server from the communication protocols supported by the client and the first server supported according to a preset selection policy letter of agreement;

The processing unit is further configured to call the first service according to the first communication protocol and a communication address of the first server.
The client according to claim 13, wherein:

The processing unit is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different.
The client according to claim 13 or 14, wherein the communication unit is further configured to call the first in the processing unit according to the first communication protocol and a communication address of the first server. After the service, the change information of the first server sent by the registration center is received, and the change information includes a communication address and / or a supported communication protocol.
A client characterized by comprising:

A communication unit, configured to send a first request message to a registration center, where the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request the A communication address of a first server where a first service of a plurality of services is located, and the first request message carries a communication protocol supported by the client;

The communication unit is further configured to receive a first communication protocol and a communication address of the first server sent by the registration center, where the first communication protocol is supported by both the client and the first server. letter of agreement;

A processing unit, configured to invoke the first service according to the first communication protocol and a communication address of the first server.
The client according to claim 16, wherein the communication unit is further configured to, after the processing unit invokes the first service according to the first communication protocol and a communication address of the first server Receiving the change information of the first server sent by the registration center, where the change information includes a communication address and / or a supported communication protocol.
A registration center, comprising:

A communication unit, configured to receive a first request message sent by a client, the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request The communication address of the first server where the first service of the plurality of services is located and the communication protocol supported by the first server;

The communication unit is further configured to send the communication address of the first server and a supported communication protocol to the client; the communication protocol supported by the first server is used to determine a first communication protocol, and the first The communication protocol is a communication protocol supported by both the client and the first server; the first communication protocol and the communication address of the first server are used by the client to call from the first server The first service.
The registration center according to claim 18, wherein before the communication unit receives the first request message sent by the client:

The communication unit is further configured to receive a communication address of the first server and a supported communication protocol sent by the first server;

The processing unit is configured to store a communication address of the first server and a supported communication protocol.
The registration center according to claim 18 or 19, wherein after the communication unit sends the communication address of the first server and the supported communication protocol to the client, the communication unit is further configured to:

Receiving the change information of the first server sent by the first server, where the change information includes a communication address and / or a supported communication protocol;

Sending the change information of the first server to the client.
A registration center, comprising:

A communication unit, configured to receive a first request message sent by a client, the registration center stores a communication address of a server where each service of a plurality of services is located and a supported communication protocol; the first request message is used to request The communication address of the first server where the first service of the plurality of services is located, and the first request message carries a communication protocol supported by the client;

The processing unit is configured to determine a communication protocol supported by the communication address of the first server, and select a communication protocol supported by the first server and the communication protocol supported by the client according to a preset selection policy. The first communication protocol supported by the first server and the client;

The communication unit is further configured to send the first communication protocol and the communication address of the first server to the client, and the first communication protocol and the communication address of the first server are used for the client. The terminal calls the first service from the first server.
The registration center according to claim 21, wherein:

The processing unit is further configured to update the selection strategy, and different selection rules specified by the selection strategy are different.
The registration center according to claim 21 or 22, wherein before the communication unit receives the first request message sent by the client:

The communication unit is further configured to receive a communication address of the first server and a supported communication protocol sent by the first server;

The processing unit is further configured to store a communication address of the first server and a supported communication protocol.
The registration center according to any one of claims 21 to 23, wherein after the communication unit sends the communication address of the first server and the supported communication protocol to the client, the communication unit is further configured to:

Receiving the change information of the first server sent by the first server, where the change information includes a communication address and / or a supported communication protocol;

Sending the change information of the first server to the client.
A server, wherein the server is configured to run the client according to any one of claims 13-17.
A server, characterized in that the server is used to run the registration center according to any one of claims 18-24.