Kafka metrics not appearing on Actuator

Hi,

We’re trying to expose our Kafka binder’s metrics using Actuator but they don’t seem to be appearing. Based on the documentation, we expected spring.cloud.stream.binder.kafka.offset to appear in the names array on the /actuator/metrics endpoint with details at /actuator/metrics/spring.cloud.stream.binder.kafka.offset. We’re using version 2.1.0.RELEASE of Spring Boot and Actuator as well as version 1.1.0 of Micrometer. Our binding is appearing at /actuator/bindings.

Our application.yml contains the following:

management:
  endpoints:
    web:
      exposure:
        include: bindings, metrics, health

Happy to supply any more information if required.

Thanks

[sobychacko]

@lawhiteley @mark-r-m Aplogies for the delay. I just ran a sample application with Boot 2.1.0.RELEASE and Spring Cloud Stream Fishtown snapshot, micrometer 1.1.0.RELEASE etc.

I am actually getting the metrics. See below.

actuator/metrics

{"names":[,"spring.cloud.stream.binder.kafka.offset","kafka.consumer.join.rate",
"jvm.threads.states","kafka.consumer.commit.rate",
"kafka.consumer.io-wait-time-avg","kafka.consumer.heartbeat.rate",
"kafka.consumer.select.total","..............]}

and actuator/metrics/spring.cloud.stream.binder.kafka.offset

{"name":"spring.cloud.stream.binder.kafka.offset",
"description":"Unconsumed messages for a particular group and topic","baseUnit":null,"measurements":
[{"statistic":"VALUE","value":5.0}],"availableTags":
[{"tag":"topic","values":["kafka-binder-gh-498"]},
{"tag":"group","values":["anonymous.5fff7127-3efa-4dd7-9b4c-d4c49a04fd95"]}]}

If you can provide a small sample app where it fails for you, we can troubleshoot it further.

[ennala]

Thanks @sobychacko @sabbyanandan