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https://issues.apache.org/jira/browse/BEAM-13493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17517592#comment-17517592
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Beam JIRA Bot commented on BEAM-13493:
--------------------------------------
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.
> fileio calls mkdirs with basepath and not dirname(full_file_name)
> -----------------------------------------------------------------
>
> Key: BEAM-13493
> URL: https://issues.apache.org/jira/browse/BEAM-13493
> Project: Beam
> Issue Type: Bug
> Components: io-py-files
> Affects Versions: 2.34.0, 2.35.0
> Reporter: Javier Domingo Cansino
> Priority: P3
>
> When calling {{apache_beam.io.fileio.WriteToFiles}} with a {{file_naming}}
> argument that adds a directory to the path, the current implementation fails
> to write files if a {{mkdirs}} or analogous call is needed in the underlying
> file storage.
> Example,
> {code}
> apache_beam.io.fileio.WriteToFiles(
> path="some/base/dir", sink=..., destination=lambda x: "events",
> file_naming=lambda *x: "subdir/file.txt"
> )
> {code}
> the current fileio implementation will call {{mkdirs}} with {{some/base/dir}}
> instead of {{some/base/dir/subdir}}.
> The bug is currently at
> https://github.com/apache/beam/blob/67bcf1e16e3fdf68cdea7a4b42b9c003e4b8948c/sdks/python/apache_beam/io/fileio.py#L605.
> ====
> Personally, I would recommend changing the FileSystems interface to have
> `open` call `mkdirs` in storages that require root parent directory creation.
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