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https://issues.apache.org/jira/browse/BEAM-1641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kenneth Knowles updated BEAM-1641:
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Priority: Blocker (was: Major)
> Support synchronized processing time in Flink runner
> ----------------------------------------------------
>
> Key: BEAM-1641
> URL: https://issues.apache.org/jira/browse/BEAM-1641
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Reporter: Kenneth Knowles
> Assignee: Aljoscha Krettek
> Priority: Blocker
> Fix For: First stable release
>
>
> The "continuation trigger" for a processing time trigger is a synchronized
> processing time trigger. Today, this throws an exception in the FlinkRunner.
> The supports the following:
> - GBK1
> - GBK2
> When GBK1 fires due to processing time past the first element in the pane and
> that element arrives at GBK2, it will wait until all the other upstream keys
> have also processed and emitted corresponding data.
> Sorry for the terseness of explanation - writing quickly so I don't forget.
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