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https://issues.apache.org/jira/browse/FLINK-4381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek updated FLINK-4381:
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Assignee: Stefan Richter
> Refactor State to Prepare For Key-Group State Backends
> ------------------------------------------------------
>
> Key: FLINK-4381
> URL: https://issues.apache.org/jira/browse/FLINK-4381
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Reporter: Aljoscha Krettek
> Assignee: Stefan Richter
>
> In order to use the new {{KeyGroupAssigner}}/{{key group sharding}} the state
> backends need no be able to deal with key groups. For this, we first need to
> refactor the state abstractions. Specifically, this touches how key-grouped
> state should be stored and also how state is sent to the
> {{CheckpointCoordinator}} and how it is stored.
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