[jira] [Created] (KAFKA-12470) The topic names in the metrics do not retain their format when extracting through JMX.

["Rafał Chmielewski (Jira)" <ji...@apache.org>]

Rafał Chmielewski created KAFKA-12470:
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             Summary: The topic names in the metrics do not retain their format when extracting through JMX.
                 Key: KAFKA-12470
                 URL: https://issues.apache.org/jira/browse/KAFKA-12470
             Project: Kafka
          Issue Type: Bug
          Components: metrics
            Reporter: Rafał Chmielewski


I have topic names that have a period in the name:


product.order
product.offering.price

 

However, for the metrics issued by JMX by a program that is a consumer of Kafka messages, the dots are replaced with an underscore:

kafka.consumer<type=consumer-fetch-manager-metrics, client-id=consumer-export-4, topic=product_offering_price, partition=1><>records-lead

 

But for the producer, this problem doesn't occur:

kafka.producer<type=producer-topic-metrics, client-id=bss.data.verification.pi_1, topic=product.offering.price><>record-send-total

 

As a consumer I use Akka Alpakka. But I think it's using Apache library to connect to Kafka and report metrics via JMX.



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