Holger-Benz opened a new issue, #485:
URL: https://github.com/apache/mina-sshd/issues/485
### Version
2.12.1
### Bug description
Dear apache support team,
we are switching our communication software from the JSCHED sftp library to
the apache-mina library.
We realized that the apache mina library does not reach the performance of
the JSCHED library.
I have written a small program to send a 700 MB file using the SFTP protocol.
This file transfer is about 6 times slower than a file transfer with the
JSCHED library.
How can we increase the transfer speed?
Are we not using the apache-mina library correctly?
public static void sendFile() throws IOException {
SshClient client = SshClient.setUpDefaultClient();
client.start();
try (ClientSession session = client.connect("user", "host",
1022).verify().getClientSession();) {
session.addPasswordIdentity("password");
session.auth().verify();
SftpClient sftpClient =
SftpClientFactory.instance().createSftpClient(session);
String largeFile = "c:/temp/largeFile";
long length = new File(largeFile).length();
try (FileChannel writeableChannel =
sftpClient.openRemoteFileChannel("largeFile",
SftpClient.OpenMode.Create,
SftpClient.OpenMode.Truncate, SftpClient.OpenMode.Write);
FileChannel readableChannel = FileChannel.open(new
File(largeFile).toPath(),
StandardOpenOption.READ)) {
readableChannel.transferTo(0, length, writeableChannel);
}
}
}
### Actual behavior
The apache mina library does not reach the performance of other
sftp-libraries
### Expected behavior
Is it possible to increase the perfomance?
### Relevant log output
_No response_
### Other information
_No response_
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