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https://issues.apache.org/jira/browse/BEAM-12690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17421540#comment-17421540
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Beam JIRA Bot commented on BEAM-12690:
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This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> 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: P2
> Labels: stale-P2
> 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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