he retry mechanism is very useful for random and infrequent faults, such as temporary network glitches. The retry mechanism can simply retry a failed request a number of times with a configurable delay between the attempts. One very important restriction on the use of the retry mechanism is that the services that it retries must be idempotent, that is, calling the service one or many times with the same request parameters gives the same result. For example, reading information is idempotent, but creating information is typically not. You don't want a retry mechanism to accidentally create two orders just because the response from the first order's creation got lost in the network.

Resilience4j exposes retry information in the same way as it does for circuit breakers when it comes to events and metrics, but does not provide any health information. Retry events are accessible on the actuator endpoint, /actuator/retryevents. To control the retry logic, Resilience4j can be configured using standard Spring Boot configuration files