rsync - Jan 2009 - looking for Windows rsync without cygwin

wondering if anyone has built a native port yet.  It looks like I may have to go
through eliminate delta copy from a half a dozen machines because of transfer
lockups.  Conversation on the rsnapshot list indicates that using cygwin may be
the source of my problems.

"""Yes, there's a well-known Cygwin hang bug that rsync seems
to hit
especially often.  IIRC, the problem is that the Windows API doesn't
provide the necessary functionality to fully emulate select(2) on pipes,
so Cygwin does the best it can and fails sometimes.  Setting a --bwlimit
may avoid the hang if the speed reduction is acceptable.
"""

I'm going to try the bandwidth limit and retries tomorrow.  I wanted to see
if
there were some other suggestions.

thanks

On Wed, Dec 31, 2008 at 9:06 PM, Eric S. Johansson <esj@harvee.org>
wrote:
> I'm going to try the bandwidth limit and retries tomorrow.  I wanted to
see if
> there were some other suggestions.
We're using the latest cwRsync in daemon mode over IPsec to transfer
about 100 GB per day from several sources to our DR site, and we have
not experienced any lock-ups for over a year. We did have such
problems with older cwRsync versions long ago.

What OS versions are involved? If your're using Win 2003 or newer, I
would make sure that TCP Chimney offload is disabled. Apparently many
third-party drivers enable TCP offload functions by default even
though the drivers or hardware is known to be buggy in handling of
some offload functions. We had all sorts of (very) intermittent
connectivity problems (hangs, drops, etc.) until we disabled all TCP
Offload functions on our severs with integrated Broadcom NICs.
Problems would occur about once per week on a high-volume database
server, and so it took forever to figure out what was going on.

Worth looking at perhaps...
-- 
RPM