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https://issues.apache.org/jira/browse/BEAM-2408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek closed BEAM-2408.
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Resolution: Fixed
> Flink unbounded source does not emit watermarks when there are multiple
> Readers
> -------------------------------------------------------------------------------
>
> Key: BEAM-2408
> URL: https://issues.apache.org/jira/browse/BEAM-2408
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Blocker
> Fix For: 2.1.0
>
>
> In {{UnboundedSourceWrapper.run()}} there is simply no call to
> {{setNextWatermarkTimer()}} if the source has multiple readers. There is also
> no test for watermark emission so while fixing this we should add one to
> {{UnboundedSourceWrapperTest}}.
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