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https://issues.apache.org/jira/browse/BEAM-6743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17122909#comment-17122909
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Beam JIRA Bot commented on BEAM-6743:
-------------------------------------
This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> Triggers not working for bounded data
> -------------------------------------
>
> Key: BEAM-6743
> URL: https://issues.apache.org/jira/browse/BEAM-6743
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Environment: Apache Beam 2.9.0 Java
> Google Cloud Dataflow Runner
> Reporter: Aditya Guru
> Priority: P2
> Labels: stale-P2
>
> pCollection
> .apply(Window.<String>into(FixedWindows.of(Duration.millis(100)))
> .triggering(Repeatedly.forever(AfterPane.elementCountAtLeast(1000)))
> .discardingFiredPanes().withAllowedLateness(Duration.ZERO))
> .apply(TextIO.write().withWindowedWrites().withNumShards(1).to('gs-path'));
> Here pCollection is a *bounded* PCollection. I'm trying to break it into
> files of 1000 roughly, but all I get is 2 files one having 1000 other having
> the rest of the data.
> If instead I do:-
> pCollection
> .apply(new GlobalWindow())
> .triggering(Repeatedly.forever(AfterPane.elementCountAtLeast(1000)))
> .discardingFiredPanes().withAllowedLateness(Duration.ZERO))
> .apply(TextIO.write().withWindowedWrites().withNumShards(1).to('gs-path'));
> I get just one file.
> Both of the above cases should have conceptually divided the records into
> chucks of 1000 to be written in a file.
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