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https://issues.apache.org/jira/browse/BEAM-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17376731#comment-17376731
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Beam JIRA Bot commented on BEAM-1309:
-------------------------------------
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.
> FileIOChannelFactory.match() traverses entire parent directory recursively
> --------------------------------------------------------------------------
>
> Key: BEAM-1309
> URL: https://issues.apache.org/jira/browse/BEAM-1309
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Eugene Kirpichov
> Priority: P3
> Labels: Clarified
>
> I was running a pipeline that reads a single file from my local home
> directory.
> The pipeline got stuck, and upon taking a stack snapshot, I noticed that it
> was stuck in FileIOChannelFactory.match().
> The code currently works by traversing the whole parent directory of the
> requested filepattern and checking which files match the filepattern. In my
> case, that means traversing everything in my home directory, which is *a lot*
> (and includes remotely mounted directories).
> https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/util/FileIOChannelFactory.java#L109
> This is very wasteful and should be fixed.
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