Karsten Spang created KAFKA-13810:
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Summary: Document behavior of KafkaProducer.flush() w.r.t callbacks
Key: KAFKA-13810
URL: https://issues.apache.org/jira/browse/KAFKA-13810
Project: Kafka
Issue Type: Improvement
Reporter: Karsten Spang
The javadoc (3.1.0) for KafkaProducer says
{panel}
The post-condition of {{flush()}} is that any previously sent record will have
completed (e.g. {{{}Future.isDone() == true{}}}).
{panel}
It does not say anything about callbacks, though. It is not clear whether all
callbacks have returned when {{flush()}} returns.
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