Chamikara Jayalath created BEAM-3907:
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Summary: 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
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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