Thomas Wolf

After some analysis, here's what's going on: transferTo/transferFrom, as well as the FileChannel.write() operations, are _positional_ operations. `readableChannel.transferTo(0, length, writeableChannel)` will essentially read 8kB `ByteBuffer`s from the file and then...

> The SSHD-server is also integrated in our communication software. The original report was about the client side. Whatever this may be, it would be a new separate issue. But...

> Any thoughts on my above comment especially on """ Is there any way to force/override the file upload/download in sftp sessions through put/get commands to use Files.copy() way in...

So far I have not enough information to do anything. I have run my own speed tests, and I see no performance problem. Before I can do anything I need...

No reply; closing this. Further performance discussions can be held in issue #524 for now.

No, there are currently no such plans. Also from JEP-444: > In a future release we may be able to remove the first limitation above, namely pinning inside synchronized. Object...

Not enough information. Upgrade from what version? Try switching on DEBUG level logging; maybe that gives some clues.

I don't have a setup where I could test this with 2.12.1. But with 2.12.0 the JGit way of doing this works fine in Eclipse. I used `ssh -vvv -D7020...

Debug time :-) I've used and tested this only in Eclipse, which uses the NIO2 transport. I have no idea why the MINA transport doesn't do the write.

I think this was fixed in #476. Please try the 2.13.0-SNAPSHOT version available from the [Apache Snapshot](https://repository.apache.org/content/repositories/snapshots) maven repository.