Explain how to find the process uptime using Actuator endpoint in Spring boot.

We may use "metrics" actuator endpoint. Spring Boot provides "metrics" endpoint that can be used diagnostically to examine the metrics collected by an application. The endpoint is not available by default and must be exposed.

management.endpoints.web.exposure.include=info,health,metrics

When the application is up, access the metrics endpoint using http://localhost:8080/actuator/metrics/ (default). Navigating to /actuator/metrics displays a list of available meter names. You can drill down to view information about a particular meter by providing its name as a selector, e.g. /actuator/metrics/jvm.memory.max.

To access the process uptime, we may use the particular meter "process.uptime". Navigate to this particular meter using the URL : http://localhost:8080/actuator/metrics/process.uptime

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