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https://issues.apache.org/jira/browse/KAFKA-2804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15025815#comment-15025815
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Yi Pan (Data Infrastructure) commented on KAFKA-2804:
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[~guozhang], as for item 2), is delete topic supported in Kafka now?
> Create / Update changelog topics upon state store initialization
> ----------------------------------------------------------------
>
> Key: KAFKA-2804
> URL: https://issues.apache.org/jira/browse/KAFKA-2804
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Guozhang Wang
> Assignee: Guozhang Wang
>
> When state store instances that are logging-backed are initialized, we need
> to check if the corresponding change log topics have been created with the
> right number of partitions:
> 1) If not exist, create topic
> 2) If expected #.partitions < actual #.partitions, delete and re-create topic.
> 3) If expected #.partitions > actual #.partitions, add partitions.
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