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https://issues.apache.org/jira/browse/BEAM-11267?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-11267:
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This Jira ticket has a pull request attached to it, but is still open. Did the
pull request resolve the issue? If so, could you please mark it resolved? This
will help the project have a clear view of its open issues.
> Remove unnecessary reshuffle for stateful ParDo after keyed operation
> ---------------------------------------------------------------------
>
> Key: BEAM-11267
> URL: https://issues.apache.org/jira/browse/BEAM-11267
> Project: Beam
> Issue Type: Improvement
> Components: runner-flink
> Reporter: David Morávek
> Priority: P3
> Time Spent: 3h
> Remaining Estimate: 0h
>
> When we have stateful pardo after GBK / Combine, we can safely assume that
> partitioning remains consistent and we can safe an extra shuffle.
> The use case for this are user defined timers / datadriven triggers. This
> code path is stressed for example by
> org.apache.beam.sdk.transforms.ParDoTest.TimerTests#testGbkFollowedByUserTimers.
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