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https://issues.apache.org/jira/browse/BEAM-13672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-13672:
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Status: Open (was: Triage Needed)
> Window.into() without a windowFn not correctly translated to portable
> representation
> ------------------------------------------------------------------------------------
>
> Key: BEAM-13672
> URL: https://issues.apache.org/jira/browse/BEAM-13672
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Affects Versions: 2.35.0
> Reporter: Steve Niemitz
> Priority: P1
>
> On the "classic" non-portable runner, you can do something like:
> {{Window.configure().discardingFiredPanes().withAllowedLateness(maxFinalJitter)}}
> to configure the max allowed lateness on a PCollection. This translates into
> a Flatten transform [1]. It doesn't seem like the FlattenTranslator uses
> this information anywhere [2], and the result is that the configuration is
> lost when translating to a portable pipeline.
> [1]
> [https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/windowing/Window.java#L403]
>
> [2]
> https://github.com/apache/beam/blob/master/runners/core-construction-java/src/main/java/org/apache/beam/runners/core/construction/FlattenTranslator.java#L53
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