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https://issues.apache.org/jira/browse/KAFKA-6535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16393587#comment-16393587
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John Roesler commented on KAFKA-6535:
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I don't think it's that important in this context, but it's worth generally
bearing in mind that a MAX_INT number of milliseconds is about 25 days.
So this proposal is more like "set default retention to max allowed value"
> Set default retention ms for Streams repartition topics to infinity
> -------------------------------------------------------------------
>
> Key: KAFKA-6535
> URL: https://issues.apache.org/jira/browse/KAFKA-6535
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Guozhang Wang
> Priority: Major
> Labels: needs-kip, newbie
>
> After KIP-220 / KIP-204, repartition topics in Streams are transient, so it
> is better to set its default retention to infinity to allow any records be
> pushed to it with old timestamps (think: bootstrapping, re-processing) and
> just rely on the purging API to keeping its storage small.
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