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Posted to jira@kafka.apache.org by "Jonathan Lacefield (Jira)" <ji...@apache.org> on 2025/09/19 19:35:00 UTC

[jira] [Created] (KAFKA-19727) Make open telemetry object instantiation configurable

Jonathan Lacefield created KAFKA-19727:
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             Summary: Make open telemetry object instantiation configurable
                 Key: KAFKA-19727
                 URL: https://issues.apache.org/jira/browse/KAFKA-19727
             Project: Kafka
          Issue Type: Bug
          Components: config
    Affects Versions: 4.0.0, 3.9.0, 3.8.0, 3.7.0
            Reporter: Jonathan Lacefield


After the 3.7 release of Kafka, the java client will emit many warning messages and more objects deployed due to an open telemetry object instantiation (possibly due to KIP-714). It appears the open telemetry feature was enabled by default and there's no way for a user to disable it. 

Users receive the INFO message defined [here |https://github.com/apache/kafka/blob/3.7.2/clients/src/main/java/org/apache/kafka/common/telemetry/internals/ClientTelemetryReporter.java#L479] after activating INFO log level for "org.apache.kafka.common.telemetry.internals.ClientTelemetryReporter" class. This log line appears lots of times.

It appears that the occurrence of this info messages shows ClientTelemetry objects are being created if the feature is not explicitly disabled. Users would like this feature to be opt-in and not enabled by default as it is.



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