Path Format

In path, brackets [] means this part is optional.

fs

An integer file descriptor of the file, e.g. 0
Absolute or relative file path, e.g. /root, root
File path with protocol, e.g. file://root

s3

s3[+profile_name]://bucket/key

http

Http uri, e.g. https://www.google.com

stdio

stdio://-
stdio://0
stdio://1
stdio://2

sftp

Relative path will be assumed relative to the directory that is setted by sftp server.

Absolute path: sftp://[username[:password]@]hostname[:port]//file_path
Relative path: sftp://[username[:password]@]hostname[:port]/file_path

hdfs

If root is relative or unset, the relative path will be assumed relative to the user’s home directory.

Absolute path: hdfs[+profile_name]:///path/to/file
Relative path: hdfs[+profile_name]://path/to/file