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From "Joel Baranick (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14124) S3AFileSystem silently deletes "fake" directories when writing a file.
Date Mon, 27 Feb 2017 06:02:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14124?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Joel Baranick updated HADOOP-14124:
    Labels: filesystem s3  (was: )

> S3AFileSystem silently deletes "fake" directories when writing a file.
> ----------------------------------------------------------------------
>                 Key: HADOOP-14124
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14124
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Joel Baranick
>              Labels: filesystem, s3
> I realize that you guys probably have a good reason for S3AFileSystem to cleanup "fake"
folders when a file is written to S3.  That said, that fact that it silently does this feels
like a separation of concerns issue.  It also leads to weird behavior issues where calls to
AmazonS3Client.getObjectMetadata for folders work before calling `S3AFileSystem.create` but
not after.  Also, there seems to be no mention in the javadoc that the `deleteUnnecessaryFakeDirectories`
method is automatically invoked. Lastly, it seems like the goal of FileSystem should be to
ensure that code built on top of it is portable to different implementations.  This behavior
is an example of a case where this can break down.

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