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https://issues.apache.org/jira/browse/BEAM-14265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17525916#comment-17525916
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Steve Niemitz commented on BEAM-14265:
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The output timestamp is ignored yes. I was hesitant to make this a P1 because
it seems like it's always been like this, although new validation added to
outputs from timestamps made it more noticeable that the timestamp was
incorrect.
> Flink should hold the watermark at the output timestamp for processing time
> timers
> ----------------------------------------------------------------------------------
>
> Key: BEAM-14265
> URL: https://issues.apache.org/jira/browse/BEAM-14265
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Reporter: Steve Niemitz
> Priority: P1
>
> Currently the Flink runner doesn't support output timestamps on processing
> time timers, and instead uses the current output watermark when the timer
> fires.
> We should update the runner to correctly set a watermark hold at the output
> timestamp and use it when firing the timer.
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