[jira] [Created] (BEAM-1309) FileIOChannelFactory.match() traverses entire parent directory recursively

["Eugene Kirpichov (JIRA)" <ji...@apache.org>]

Eugene Kirpichov created BEAM-1309:
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             Summary: 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
            Assignee: Pei He


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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