What should be done if the service startup takes a significant amount of time?

If starting a service takes a significant amount of time, several approaches can be applied:

• Asynchronous initialization: start the service and initialize resources in the background, allowing the system to accept requests or operate with limited functionality.
• Use of health checks: so the system knows when the service is fully ready.
• Loading optimization: analyze what exactly takes time, and optimize or defer loading non-critical components.
• Caching and preloading: if possible, prepare necessary data in advance.

For example, in Kubernetes, you can configure readinessProbe so that the service does not accept traffic until it is ready.