Chris Egerton created KAFKA-13669:
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Summary: Log messages for source tasks with no offsets to commit
are noisy and confusing
Key: KAFKA-13669
URL: https://issues.apache.org/jira/browse/KAFKA-13669
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Reporter: Chris Egerton
Assignee: Chris Egerton
The
[messages|https://github.com/apache/kafka/blob/71cbff62b685ef2b6b3169c2e69693687ddf7b3f/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/WorkerSourceTask.java#L493-L500]
that Connect emits during offset commit for source tasks that haven't accrued
any new offsets since their last commit are logged at INFO level, which has
confused some users who saw them and believed that something was wrong with
their connector.
We introduced these fairly recently as part of the work in
[https://github.com/apache/kafka/pull/11323] for KAFKA-12226.
We may want to lower the level of these messages to DEBUG in order to avoid
giving users the impression that something's wrong with their connector,
especially if there's a source task running that has gotten fully caught-up
with the system it's polling and is simply waiting for more data to become
available.
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