Re: rsync over ssh hang issue understood *Revisited*
On Jan 24, 2015, at 1:44 PM, Sunny digantgo...@gmail.com wrote: Christopher Faylor cgf-use-the-mailinglist- please at cygwin.com writes: On Fri, Sep 07, 2007 at 09:57:13AM -0500, Jonathan Hurd wrote: Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's easy to explain - There is no fix yet. Any update on this? You’re resurrecting a 7-year-old thread. Are you saying this problem persists? I was under the impression that the old rsync bug was finally squished years ago. If you can reproduce it, we’ll want a simple testcase that lets anyone show the problem on their system. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: rsync over ssh hang issue understood *Revisited*
Christopher Faylor cgf-use-the-mailinglist- please at cygwin.com writes: On Fri, Sep 07, 2007 at 09:57:13AM -0500, Jonathan Hurd wrote: Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's easy to explain - There is no fix yet. cgf Any update on this? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Re: rsync over ssh hang issue understood *Revisited*
Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's the exact same problem mentioned here: http://cygwin.com/ml/cygwin/2006-04/msg00792.html -- - Original Message - From: René Berber Steven Hartland wrote: Just to back this up, we cant get basic rsync to run reliably using cygwin either. The command being tested is run from a FreeBSD box with the source being a cygwin box using cygwin 1.5.19-4: rsync -av cygwin1:/testdir/ /testdir/ The result is it will randomly hang on a file, no output / error returned just stops. [snip] tcsh6.14.00-5 OK While testing is csh involved? Your description above is very close to a problem with cvs reported and solved recently by Jay Abel. In short, tcsh at the receiving end is changing \r\n to \n inside binary files, so the receiving process waits for the expected bytes but it receives less. tcsh is the default shell on FreeBSD which is the recieving end in this test yes but I'm a little confused how the shell could effect the results of rsync? FreeBSD to FreeBSD for FreeBSD to Windows SFU doesnt have this issue so something specific to tcsh on cygwin? An example of this failure is: [log] rsync -av --progress cygwin1:/testdir/ /testdir/ receiving file list ... 1705 files to consider created directory testdir / bf2_w32ded.exe 0 0%0.00kB/s0:00:00 ***Hung here*** ^CKilled by signal 2.0.00kB/s0:00:00 rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(242) [receiver] rsync error: unexplained error (code 255) at rsync.c(242) [generator] [/log] - Brett Serkez wrote: After running into the hang trying to use rsync over ssh on Cygwin, reported on this mailing list, but with no resolution other than use of daemon mode, I tracked down the problem. I have rsync working over ssh on Cygwin. The hang is occuring when rsync is attempting to exchange protocol version numbers, it writes its version and then hangs waiting endlessly for a reply. The ssh process is detached, and apparently not diretly connected to rsync, as it is an orphan, owned by process 1. The ssh process never even gets as far as attempting network access and rsync never does anything of value. Not defining HAVE_SOCKETPAIR in the make configuration is enough to use pipe() vs. socketpair(), which is enough for rsync to run using ssh, just as it does on UNIX. While I've not done extensive testing, I've used it enough to believe it is working as designed/intended. The source file that is effected by the above change (primarily) is util.c in function: fd_pair(): #ifdef HAVE_SOCKETPAIR ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd); #else ret = pipe(fd); #endif While use of socketpair() may be a better method, use of pipe() does work and I'd request that the rsync package maintainer please rebuild the package with this build option change and reissue the package so all can benefit. Perhaps socketpair() can be used with a future release of Cygwin? Thank you, Brett Brett C. Serkez, Techie -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: rsync over ssh hang issue understood *Revisited*
On Fri, Sep 07, 2007 at 09:57:13AM -0500, Jonathan Hurd wrote: Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's easy to explain - There is no fix yet. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: rsync over ssh hang issue understood *Revisited*
It just doesn't make sense how this can work perfectly for about 2 weeks, and then out of nowhere all sync's start to hang with transfer over a certain amount. Christopher Faylor wrote: On Fri, Sep 07, 2007 at 09:57:13AM -0500, Jonathan Hurd wrote: Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's easy to explain - There is no fix yet. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: rsync over ssh hang issue understood *Revisited*
Jonathan Hurd wrote: Christopher Faylor wrote: On Fri, Sep 07, 2007 at 09:57:13AM -0500, Jonathan Hurd wrote: Sorry to bring back this old thread back. Is there anyone that can explain a fix for this problem. I've only been using rsync/cygwin/on ssh for about 3 weeks, so please explain in dummy terms. It's easy to explain - There is no fix yet. It just doesn't make sense how this can work perfectly for about 2 weeks, and then out of nowhere all sync's start to hang with transfer over a certain amount. Never underestimate the power of luck. -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 216 Dalton Rd. (508) 893-9889 - FAX Holliston, MA 01746 _ A: Yes. Q: Are you sure? A: Because it reverses the logical flow of conversation. Q: Why is top posting annoying in email? -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
