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https://issues.apache.org/jira/browse/BEAM-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17495653#comment-17495653
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Beam JIRA Bot commented on BEAM-12690:
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This issue was marked "stale-assigned" and has not received a public comment in
7 days. It is now automatically unassigned. If you are still working on it, you
can assign it to yourself again. Please also give an update about the status of
the work.
> GroupIntoBatches does not properly maintain watermarks
> ------------------------------------------------------
>
> Key: BEAM-12690
> URL: https://issues.apache.org/jira/browse/BEAM-12690
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Reuven Lax
> Priority: P3
> Fix For: 2.34.0
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> Since GIB buffers elements, the watermark should be held up to the minimum
> event-time buffered. Timer.withOutputTimestamp is the correct way to do this
> in Beam.
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