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Lillian commented on KAFKA-8613: -------------------------------- [~cadonna], Do you have time to write up a KIP for this issue? If not, I can try. > Set default grace period to 0 > ----------------------------- > > Key: KAFKA-8613 > URL: https://issues.apache.org/jira/browse/KAFKA-8613 > Project: Kafka > Issue Type: Improvement > Components: streams > Affects Versions: 3.0.0 > Reporter: Bruno Cadonna > Priority: Blocker > > Currently, the grace period is set to retention time if the grace period is > not specified explicitly. The reason for setting the default grace period to > retention time was backward compatibility. Topologies that were implemented > before the introduction of the grace period, added late arriving records to a > window as long as the window existed, i.e., as long as its retention time was > not elapsed. > This unintuitive default grace period has already caused confusion among > users. > For the next major release, we should set the default grace period to > {{Duration.ZERO}}. -- This message was sent by Atlassian JIRA (v7.6.14#76016)