id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
1976	SFTP+SSHFS hangs for second concurrent operation	luckyredhot	daira	"I am using Tahoe-Lafs FTPS frontend with SSHFS on Ubuntu 12.04.
If I try to run second operation (simply ""ls"" or ""du"") while first writing is running, second one can completely hang sometimes. It does not even stops on sending SIGKILL so I need to kill parent bash session.

Tahoe-LAFS versions 1.9.2 and 1.10.0 are both affected.

SSHFS mount options:
{{{
sshfs -p 8022 -o uid=33 -o gid=33 -o nonempty -o allow_other -o idmap=user tahoe@127.0.0.1:/ /mnt/tahoe
}}}

If this is SFTP issue it should be fixed.
If this is SSHFS issue then probably we have to find other client or some workaround (probably 2 sshfs mounts - for writing and for reading).

Any help is appreciated :)
Please also suggest on commands which I may run when issue occurs to gather some debug information.

Thanks!


"	defect	assigned	normal	undecided	code-frontend-ftp-sftp	1.10.0		sftp sshfs hang reliability