Actuator API

Contact Info



This provides endpoints for checking the health status of the OTP instance. It can be useful when running OTP in a container.

The API will be at the endpoint http://localhost:8080/otp/actuators and follows the Spring Boot actuator API standard.



The health endpoints returns an 200 OK status code once the graph is loaded and all updaters are ready. Otherwise, a 404 NOT FOUND is returned.


Prometheus metrics are returned using Micrometer. The default JVM and jersey metrics are enabled.

Also, GraphQL timing metrics are exported under graphql.timer.query and graphql.timer.resolver, if the GraphQL endpoints are enabled.


To enable this you need to add the feature ActuatorAPI.