A lot of message like "adding 98304 to 32768 in channel 0" in log

[sirkonst]

I run swftp-sftp and try to upload 100 MB file by FileZilla. In log I see few message:

[SSHService ssh-connection on SwiftSSHServerTransport,63,18.3.26.5] adding 65793 to 65279 in channel 0
[SSHService ssh-connection on SwiftSSHServerTransport,63,18.3.26.5] adding 82016 to 49056 in channel 0
[SSHService ssh-connection on SwiftSSHServerTransport,63,18.3.26.5] adding 98304 to 32768 in channel 0

A few message is ok, as I see. But! If I upload several files in parallel, I get many-many-many message in log until uploads to finish. It's not ok, as I see.

[sirkonst]

UPD: problem too and for upload one file.

[sudorandom]

I made a logger that filters out most of the verbose stuff but still gives you the important bits like what top-level commands a client is running and when clients connect/disconnect.

If you're running with twistd:

twistd -n --logger=swftp.logging.StdOutObserver
twistd --logger=swftp.logging.LOG_USER
twistd --logger=swftp.logging.LOG_LOCAL0
twistd --logger=swftp.logging.LOG_LOCAL1

If you're running it with the swftp-ftp command it uses StdOutObserver automatically.

However...

This is the line at fault: http://twistedmatrix.com/trac/browser/tags/releases/twisted-13.1.0/twisted/conch/ssh/connection.py#L454 Parts of twisted are fairly verbose (including conch) and it lacks the same kind of filtering ability that you can do with the built-in python logging. I had SSHConnection overwritten exclusively to override adjustWindow() in order to squelch these message. If you think using the log observers above don't work for you then I'll change it back.

[sirkonst]

How I see adjustWindow() calls from SSHConnection. ssh_CHANNEL_DATA http://twistedmatrix.com/trac/browser/tags/releases/twisted-13.1.0/twisted/conch/ssh/connection.py#L237 It may be possible to change some default values for channel like localWindowSize or similar to avoid calling adjustWindow()...