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https://issues.apache.org/jira/browse/FLINK-15670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17047770#comment-17047770
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Stephan Ewen commented on FLINK-15670:
--------------------------------------

[~ym] The independent recovery of regions is active by default. I think it 
would be good to still have the tasks in the same job, so they can share slots, 
cached artifacts (jars), classloaders, etc.

> 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
>            Priority: Major
>              Labels: usability
>             Fix For: 1.11.0
>
>
> 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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