What is the implementation process of a distributed reg…
The implementation process of a distributed register center in Golang typically involves the following steps:
- Define the structure of a service registry: Create a struct to store information about registered services, such as service name, IP address, port number, etc.
- Registration Service: When a service is started, it sends a registration request to the registry center to register its service information. The registry center will store the information of the service in the registry.
- Service discovery: When a service needs to rely on other services, it sends a service discovery request to the registry center to obtain the information of the required service. The registry center will then search for the corresponding service information in the registry table and return it to the requesting service.
- Heartbeat detection: To ensure that the service information in the registry is up-to-date, the registry periodically sends heartbeat detection requests to registered services. If a service does not respond to the heartbeat detection request for a long time, the registry will mark it as unavailable and remove it from the registry.
- Service load balancing: When there are multiple identical service providers, the registry center can evenly distribute requests to different service providers based on certain policies (such as round-robin, random, etc.) to achieve load balancing.
- Deregistering a service: When a service stops running, it sends a deregistration request to the registry to remove its service information from the registry.
The above is a simple implementation process, whereas an actual distributed registry center may have more features and details.