[jira] [Reopened] (FLINK-15670) Provide a Kafka Source/Sink pair that aligns Kafka's Partitions and Flink's KeyGroups

["Robert Metzger (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-15670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Metzger reopened FLINK-15670:
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I reverted the change in https://github.com/apache/flink/commit/bf58725e7ad80f276a458007a2d5b890d8ffc4f5 because it didn't compile.

> Provide a Kafka Source/Sink pair that aligns Kafka's Partitions and Flink's KeyGroups
> -------------------------------------------------------------------------------------
>
>                 Key: FLINK-15670
>                 URL: https://issues.apache.org/jira/browse/FLINK-15670
>             Project: Flink
>          Issue Type: New Feature
>          Components: API / DataStream, Connectors / Kafka
>            Reporter: Stephan Ewen
>            Assignee: Yuan Mei
>            Priority: Major
>              Labels: pull-request-available, usability
>             Fix For: 1.11.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> This Source/Sink pair would serve two purposes:
> 1. You can read topics that are already partitioned by key and process them without partitioning them again (avoid shuffles)
> 2. You can use this to shuffle through Kafka, thereby decomposing the job into smaller jobs and independent pipelined regions that fail over independently.



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