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https://issues.apache.org/jira/browse/BEAM-24?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145683#comment-17145683
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Beam JIRA Bot commented on BEAM-24:
-----------------------------------
This issue was marked "stale-P2" and has not received a public comment in 14
days. It is now automatically moved to P3. If you are still affected by it, you
can comment and move it back to P2.
> Merging of watermark holds depends on runner-specific "take the minimum"
> behavior
> ---------------------------------------------------------------------------------
>
> Key: BEAM-24
> URL: https://issues.apache.org/jira/browse/BEAM-24
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Reporter: Kenneth Knowles
> Priority: P3
>
> When multiple watermark holds are to be combined via an OutputTimeFn and
> committed to persistent storage, the case where the OutputTimeFn computes the
> minimum is elided, assuming the underlying runner will perform this combine
> by default.
> This is a natural default, but today it is a runner-specific behavior that
> the runner-agnostic code relies upon.
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