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https://issues.apache.org/jira/browse/BEAM-311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17132165#comment-17132165
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Beam JIRA Bot commented on BEAM-311:
------------------------------------
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.
> Add 'garbage collection' hold when receive late element
> -------------------------------------------------------
>
> Key: BEAM-311
> URL: https://issues.apache.org/jira/browse/BEAM-311
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Reporter: Mark Shields
> Priority: P2
> Labels: stale-P2
>
> We currently add a 'garbage collection' hold in WatermarkHold (invoked via
> ReduceFnRunner) if the closing behavior is FIRE_ALWAYS. This means an element
> which has come in too late for a data holds and an end-of-window hold may end
> up setting no hold at all. As a result, the eventual pane containing that
> element may end up dropped as being too late.
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