January 2018
Intermediate to advanced
414 pages
10h 29m
English
Content preview from Hands-On Microservices with Kotlin
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Using Spring Boot actuator
Eureka provides a mechanism to see whether the microservices instances that are registered are still running, every time the microservices send a request to Eureka to say that they are still up and ready to get requests. This is a Heart-beat.
If Eureka does not receive a Heart-beat after some time, it will disconnect that instance, so when it is queried, it will be not available. If the microservice is again starting to send Heart-beats, Eureka will reconnect. By default, the Heart-beat implementation is just to send a regular request letting you know that it's still active.
But Spring provides a better mechanism to know whether a service is up and running, called Spring Boot actuator. Spring Boot actuator provides ...
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