Category "spring-cloud-stream-binder-kafka"

Why retention.ms of Kaka Streams repartition topic is set to -1 by default? Isn't this infinitely retain messages in repartition topic?

I think it's related to the below links, but I don't understand. https://issues.apache.org/jira/browse/KAFKA-6535 https://issues.apache.org/jira/browse/KAFKA-61