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What does service registration and discovery mean?

Jun 29, 2020 pm 01:30 PM
Service registration

Service registration and discovery means that the service process registers its location in the registration center. The client application process initiates a query to the registration center to obtain the location of the service. An important role of service discovery is to provide an available Service list.

What does service registration and discovery mean?

Service registration and discovery role

  • Service registration: The service process is registered in the registration center own position. It usually registers its host and port numbers, and sometimes authentication information, protocol, version number, and details of the operating environment.

  • Service discovery: The client application process initiates a query to the registration center to obtain the location of the service. An important role of service discovery is to provide a list of available services

The relationship between service registration, service registry, and service discovery

Yes: Upload service startup information to the service registry through the service registration mechanism, and the service discovery mechanism obtains information about available services in real time through the service registry.

Service registration methods include: self-registration and third-party registration. Self-registration means that when the service starts, the service automatically uploads information to the service registry and synchronizes it through heartbeats. Third-party registration means uploading service startup information to the service registry through a third-party service and keeping it updated through a certain mechanism. The disadvantage is to ensure the high availability of third-party services.

The service registry is also a service cluster that maintains a database that stores information about available services.

Service discovery means that when a service needs to be used, the available service information is obtained by reading the service registry, and the client can connect to the server through this information. Service discovery methods include: client service discovery and server service discovery

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