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https://issues.apache.org/jira/browse/KAFKA-8531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17310091#comment-17310091
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Matthias J. Sax commented on KAFKA-8531:
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Yes, I plan to deliver this for 3.0.
About 464: we should have a separate ticket IMHO.
> Change default replication factor config
> ----------------------------------------
>
> Key: KAFKA-8531
> URL: https://issues.apache.org/jira/browse/KAFKA-8531
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Affects Versions: 2.3.0
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Blocker
> Labels: kip
> Fix For: 3.0.0
>
>
> With KAFKA-8305, AdminClient allows to create topics based on the broker
> default replication factor.
> Kafka Streams sets `replication.factor` to 1 by default atm, to give a good
> out-of-the-box user experience. The problem is, that people may need to
> change the config if they push an application to production.
> We should change the default to `-1` to exploit the new AdminClient feature.
> This won't impact the out-of-the-box experience and may avoids the need to
> change the setting when pushing an application to production.
> We piggy-back this change to the original KIP:
> [https://cwiki.apache.org/confluence/display/KAFKA/KIP-464%3A+Defaults+for+AdminClient%23createTopic]
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