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https://issues.apache.org/jira/browse/BEAM-12211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17375878#comment-17375878
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Beam JIRA Bot commented on BEAM-12211:
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This issue was marked "stale-P2" and has not received a public comment in 14
days. It is now automatically moved to P3. If you are still affected by it, you
can comment and move it back to P2.
> Add ability to configure empty file behavior in IOs
> ---------------------------------------------------
>
> Key: BEAM-12211
> URL: https://issues.apache.org/jira/browse/BEAM-12211
> Project: Beam
> Issue Type: New Feature
> Components: io-java-files, io-py-common
> Reporter: Daniel Oliveira
> Priority: P3
>
> This is a general feature request based on frequent questions I see on Stack
> Overflow. I often see questions about how to get an empty file instead of no
> file when a PCollection is empty, or vice versa for IOs that create empty
> files. In other words, whichever approach is taken, there's users that will
> want the opposite approach.
> It seems the best approach here would be to add some kind of common code
> (FileIO maybe?) that could either open files for writing in Setup or lazily
> in ProcessElements.
> Regardless of the approach taken, this bug is basically for investigating
> this feature for feasibility and maybe holding sub-tasks/blocking bugs for
> tracking implementation.
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