Daryn Sharp created HADOOP-10013:
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Summary: FileSystem checkPath accepts invalid paths with an
authority but no scheme
Key: HADOOP-10013
URL: https://issues.apache.org/jira/browse/HADOOP-10013
Project: Hadoop Common
Issue Type: Bug
Components: fs
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: Daryn Sharp
{{FileSystem#checkPath}} will consider paths of the form //junk/path as being
valid for the given fs. The problem is {{checkPath}} shorts out if the path
contains no scheme - assuming it must be a relative or absolute path for the
given fs - whereas the condition should be no scheme _and_ no authority.
This causes {{DistributedFileSystem#getPathName}} to convert //junk/path into
/path, which silently hides the use of invalid paths.
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