[stunnel-users] "SSL_read returned WANT_READ: retrying" at 30Hz

[Vincent Lascaux]

Hi,

I'm trying to use rsync (2.6.8) through STunnel (4.16) to synchronize two PC
over the internet (they both have the same version of stunnel and rsync).

On the server, I have STunnel running with this configuration:
	cert = stunnel.pem

	; Some performance tunings
	socket = l:TCP_NODELAY=0
	socket = r:TCP_NODELAY=0

	; Some debugging stuff useful for troubleshooting
	debug = 7
	output = stunnel.log

	[rsync]
	accept  = 273
	connect = 873

On the client I have this configuration:
	cert = stunnel.pem

	; Some performance tunings
	socket = l:TCP_NODELAY=0
	socket = r:TCP_NODELAY=0

	; Some debugging stuff useful for troubleshooting
	debug = 7
	output = stunnel.log

	client = yes

	[rsync]
	accept  = 873
	connect = UrlOfMyServer:273

Then I connect with rsync using
	rsync -a -h --progress --stats --partial
Account at localhost::RemotePath LocalPath

I think the connection is not really stable. RSync sometimes hang. The log
file on the client side show 2006.09.11 21:33:11 LOG7[2008:1468]: SSL_read
returned WANT_READ: retrying at 30Hz (that's right, it means 30 times a
second). My log file nearly gets bigger faster than my downloaded file ;)

Is it expected? What does this line mean? I turned TCP_NODELAY to 0 thinking
that it my give me synchronous sockets and that it would remove that error,
but it didn't...

Any help appreciated,
Thanks

-- 
Vincent