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https://issues.apache.org/jira/browse/KAFKA-9112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Boyang Chen updated KAFKA-9112:
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Component/s: streams
> Combine streams `onAssignment` with `partitionsAssigned` task creation
> ----------------------------------------------------------------------
>
> Key: KAFKA-9112
> URL: https://issues.apache.org/jira/browse/KAFKA-9112
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Boyang Chen
> Priority: Major
>
> Task manager needs to call `createTasks` inside partitionsAssigned callback,
> which is after the `onAssignment` callback for assignor. This means during
> task creation we rely on the status change based on the intermediate data
> structures populated by a different callback, which is hard to reason about.
> We should consider consolidate logics to either one of the callbacks, prefer
> `onAssignment` as it contains full information needed.
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