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Posted to jira@kafka.apache.org by "Matthias J. Sax (JIRA)" <ji...@apache.org> on 2018/06/18 18:19:00 UTC

[jira] [Commented] (KAFKA-7071) specify number of partitions when using repartition logic

    [ https://issues.apache.org/jira/browse/KAFKA-7071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16516117#comment-16516117 ] 

Matthias J. Sax commented on KAFKA-7071:
----------------------------------------

Sound like a duplicate of KAFKA-6037 ? If yes, please close this as duplicate and comment on KAFKA-6037. There is a pending KIP but not much progress recently.

> specify number of partitions when using repartition logic
> ---------------------------------------------------------
>
>                 Key: KAFKA-7071
>                 URL: https://issues.apache.org/jira/browse/KAFKA-7071
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Boyang Chen
>            Assignee: Boyang Chen
>            Priority: Major
>
> Hey there, I was wondering whether it makes sense to specify number of partitions of the output topic from a repartition operation like groupBy, flatMap, etc. The current DSL doesn't support adding a customized repartition topic which has customized number of partitions. For example, I want to reduce the input topic from 8 partitions to 1, there is no easy solution but to create a new topic instead.
> cc [~guozhang] [~liquanpei]



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