In WOS2 ESB, VFS transport can be used to access SFTP file system. The issue is that we cannot use absolute paths with SFTP and this affects to WSO2 ESB 4.8.1 and prior versions. The reason is that SFTP uses SSH to login, and it will by default log into the user's home directory and the path specified will be considered relative to the user's home directory.

For example consider the VFS URL below,
vfs:sftp://kalpa:*****@localhost/myPath/file.xml
The requirement is to refer to /myPath/file.xml but it will refer /home/kalpa/myPath/file.xml (/home/kalpa) is the user's home directory.

To overcome this issue we can create a mount for the desired directory in the home directory of the user in the FTP file system. Considering the example above, we can create the mount as follows,
mount --bind /myPath /home/kalpa/myPath
 With this the VFS URL above will actually refer to /myPath/file.xml.
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