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https://issues.apache.org/jira/browse/BEAM-3907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Kirpichov closed BEAM-3907.
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Resolution: Fixed
Fix Version/s: 2.6.0
This will not need clarification since I fixed a bug in watermark advancement
in watchForNewFiles(). It will need clarification if somebody adds custom
timestamps/watermarks.
> Clarify how watermark is estimated for watchForNewFiles() transforms
> --------------------------------------------------------------------
>
> Key: BEAM-3907
> URL: https://issues.apache.org/jira/browse/BEAM-3907
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Chamikara Jayalath
> Assignee: Eugene Kirpichov
> Priority: Major
> Fix For: 2.6.0
>
>
> For example
> [https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/io/AvroIO.java#L488]
> It's not clear how the watermark will be estimated/incremented when using
> these transforms.
> Other source implementations seems to be describing this. For example:
> https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubUnboundedSource.java#L89
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