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https://issues.apache.org/jira/browse/HDDS-4155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17195679#comment-17195679
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Bharat Viswanadham commented on HDDS-4155:
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[~elek]
I have committed this, and only change takes effect when filesystem paths
enabled config, and when false, it will still allow. If you have any more
comments, we can discuss in a new Jira.
> Directory and filename can end up with same name in a path
> ----------------------------------------------------------
>
> Key: HDDS-4155
> URL: https://issues.apache.org/jira/browse/HDDS-4155
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Labels: pull-request-available
>
> Scenario:
> Create Key via S3, and Create Directory through Fs.
> # open key -> /a/b/c
> # CreateDirectory -> /a/b/c
> # CommitKey -> /a/b/c
> So, now in Ozone we will have directory and file with name "c"
> When created through Fs interface.
> # create file -> /a/b/c
> # CreateDirectory -> /a/b/c
> # CommitKey -> /a/b/c
> So, now in Ozone we will have directory and file with name "c"
>
> # InitiateMPU /a/b/c
> # Create Part1 /a/b/c
> # Commit Part1 /a/b/c
> # Create Directory /a/b/c
> # Complete MPU /a/b/c
> So, now in Ozone, we will have directory and file with name "c". In MPU this
> is one example scenario.
>
> Few proposals/ideas to solve this:
> # Check during commit whether a directory already exists with same name. But
> disadvantage is after user uploads the entire data during last stage we fail.
> (File system with create in progress acts similarly. Scenario: 1. vi t1 2.
> mkdir t1 3. Save t1: (Fail:"t1" is a directory)
> # During create directory check are there any open key creation with same
> name and fail.
>
> Any of the above approaches are not final, this Jira is opened to discuss
> this issue and come up with solution.
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