Steve Loughran created HADOOP-13221:
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Summary: 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: Rajesh Balamohan
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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