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https://issues.apache.org/jira/browse/FLINK-17903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen closed FLINK-17903.
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> Evolve WatermarkOutputMultiplexer to make it reusable in FLIP-27 Sources
> -------------------------------------------------------------------------
>
> Key: FLINK-17903
> URL: https://issues.apache.org/jira/browse/FLINK-17903
> Project: Flink
> Issue Type: Sub-task
> Components: API / DataStream
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Major
> Fix For: 1.11.0
>
>
> The {{WatermarkOutputMultiplexer}} merges multiple independently generated
> watermarks.
> To make it usable in the FLIP-27 sources, we need to
> - Change its IDs from integers to Strings (match splitIDs)
> - Support de-registration of local outputs (when splits are finished)
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