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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HADOOP-13221) s3a create() doesn't check for a parent path being a file
Date Tue, 01 Aug 2017 15:51:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran reassigned HADOOP-13221:
---------------------------------------

    Assignee: Sean Mackrory  (was: Rajesh Balamohan)

> s3a create() doesn't check for a parent path being a file
> ---------------------------------------------------------
>
>                 Key: HADOOP-13221
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13221
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.7.2
>            Reporter: Steve Loughran
>            Assignee: Sean Mackrory
>         Attachments: HADOOP-13321-test.patch
>
>
> Seen in a code review. Notable that if true, this got by all the FS contract tests —showing
we missed a couple.
> {{S3AFilesystem.create()}} does not examine its parent paths to verify that there does
not exist one which is a file. It looks for the destination path if overwrite=false (see HADOOP-13188
for issues there), but it doesn't check the parent for not being a file, or the parent of
that path.
> It must go up the tree, verifying that either a path does not exist, or that the path
is a directory. The scan can stop at the first entry which is is a directory, thus the operation
is O(empty-directories) and not O(directories).



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