Permission denied while ploading a file

Version: 2016.1.0.0

Issue: We have a scenario where we download the file from clients SFTP server and put it in s3 and append something to that and overwrite the existing file in SFTP. While uploading the file we are seeing this issue of permission denied.

I tried uploading the file manually through filezilla and it works without issues.

Error Details:

Message: Permission Denied.

Stack Trace:

at Renci.SshNet.Sftp.SftpSession.RequestOpen(String path, Flags flags, Boolean nullOnError)\n at Renci.SshNet.SftpClient.InternalUploadFile(Stream input, String path, Flags flags, SftpUploadAsyncResult asyncResult, Action`1 uploadCallback)\n at

I would like know

Why this is happening?
Will there be a scenario where the SFTP transfer works with filzilla but not using SSH.NET?
How to capture the messages from SSH.NET programatically?

まず、issue に記載されている SftpClient のアップロードを再現し、RequestOpen と InternalUploadFile のスタックエントリを調査します。SSH.NET による転送と、成功した FileZilla による転送を比較し、SSH.NET のメッセージをプログラムで取得する方法を特定します。権限の違いの原因を特定し、関連する診断出力を文書化できれば完了です。