Gian Luca created KAFKA-14081:
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Summary: Cannot get my MetricsReporter implementation to receive
meaningful metrics
Key: KAFKA-14081
URL: https://issues.apache.org/jira/browse/KAFKA-14081
Project: Kafka
Issue Type: Bug
Components: clients
Affects Versions: 3.3.0
Reporter: Gian Luca
I want to extract metrics from KafkaProducer to export them to our company
monitoring solution. At first I went for implementing {{MetricsReporter}} and
registering my implementation through the "metric.reporters" config property.
The class is correctly registered as it receives metric updates through
{{metricChange()}} while KafkaProducer is being used. The problem is that all
the metric values are stuck at zero (NaN in older versions of Kafka), even the
most trivial (e.g. 'record-send-total').
If instead of using a report I simply poll the {{metrics()}} method of the
KafkaProducer, then I see meaningful values: counters increasing over time, etc.
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