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https://issues.apache.org/jira/browse/KAFKA-5702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123199#comment-16123199
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ASF GitHub Bot commented on KAFKA-5702:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/kafka/pull/3624


> Refactor StreamThread to separate concerns and enable better testability
> ------------------------------------------------------------------------
>
>                 Key: KAFKA-5702
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5702
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Damian Guy
>            Assignee: Damian Guy
>
> {{StreamThread}} does a lot of stuff, i.e., managing and creating tasks, 
> getting data from consumers, updating standby tasks, punctuating, rebalancing 
> etc. With the current design it is extremely hard to reason about and is 
> quite tightly coupled. 
> We need to start to tease out some of the separate concerns from 
> StreamThread, ie, TaskManager, RebalanceListener etc. 



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