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https://issues.apache.org/jira/browse/KAFKA-14294?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vicky Papavasileiou updated KAFKA-14294:
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Summary: Kafka Streams should commit transaction when no records are
processed (was: Kafka Streams should commit transaction even no records are
processed)
> Kafka Streams should commit transaction when no records are processed
> ---------------------------------------------------------------------
>
> Key: KAFKA-14294
> URL: https://issues.apache.org/jira/browse/KAFKA-14294
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Vicky Papavasileiou
> Priority: Major
>
> Currently, if there are no records to process in the input topic, a
> transaction does not commit. If a custom punctuator code is writing to a
> state store (which is common practice) the producer gets fenced when trying
> to write to the changelog topic. This throws a TaskMigratedException and
> causes a rebalance.
> A better approach would be to commit a transaction even when there are no
> records processed as to allow the punctuator to make progress.
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