rsync problem behind a router

[tim.conway at philips.com]

I was afraid of that.  I'd hoped that it would show more.  Next thing i'd 
try would be to, on the remote end, write a rsync wrapper script, that 
starts rsync inside a strace (or truss, or tusc, or whatever your OS 
uses), directing it to follow forks, redirecting STDERR to a file.  Do 
another super-short run, using --rsync-path= to point at the wrapper, then 
scan down that trace output.  If you don't see a solution right away, post 
that output here.  If we find that the rsync process suspends itself 
waiting for io, it's probably a transport thing.    Rsync is known for 
revealing weaknesses in TCP/IP implementations, though I wouldn't expect 
to see it in small jobs.

Tim Conway 
conway.tim at spilihp.com reorder name and reverse domain 
303.682.4917 office, 303.921.0301 cell 
Philips Semiconductor - Longmont TC 
1880 Industrial Circle, Suite D 
Longmont, CO 80501 
Available via SameTime Connect within Philips, caesupport2 on AIM 
"There are some who call me.... Tim?" 









"Chad Moss" <chad.moss at skyregister.com>
Sent by: 
rsync-admin at lists.samba.org
12/18/02 03:48 PM

 
        To:     Tim Conway/LMT/SC/PHILIPS at AMEC
        cc:     <rsync at lists.samba.org>
        Subject:        RE: rsync problem behind a router
        Classification: 



OK...I tried with the -vvv on one file (an index.php file).  I got:

stdin: is not a tty
server_sender starting pid=14373
make_file(1,index.php)
expand file_list to 4000 bytes, did move
recv_file_name(index.php)
received 1 names
recv_file_list done
get_local_name count=1 /home/backup/mercury/
recv_files(1) starting
send_file_list done
send_files starting
generator starting pid=1494 count=1
recv_generator(index.php,0)
generate_files phase=1

A couple of times, it did not even get that far...I got:
stdin: is not a tty
server_sender starting pid=14432
make_file(1,index.php)
expand file_list to 4000 bytes, did move
recv_file_name(index.php)
received 1 names
recv_file_list done
get_local_name count=1 /home/backup/mercury/
generator starting pid=1497 count=1
recv_generator(index.php,0)
generate_files phase=1
recv_files(1) starting
send_file_list done
send_files starting



-----Original Message-----
From: tim.conway at philips.com [mailto:tim.conway at philips.com] 
Sent: Wednesday, December 18, 2002 12:08 PM
To: Chad Moss
Cc: rsync at lists.samba.org
Subject: Re: rsync problem behind a router

Chad:  From the output you have so far, there's not much to go on.  Can 
you try a run with "-vvv"? That's more likely to reveal exactly what
it's 
failing on, though (AFAIK(IIRC)) it won't tell you about stuff on the 
remote side.  I had to write a wrapper to start rsync in a truss -f for 
part of my debugging.

Tim Conway 
conway.tim at spilihp.com reorder name and reverse domain 
303.682.4917 office, 303.921.0301 cell 
Philips Semiconductor - Longmont TC 
1880 Industrial Circle, Suite D 
Longmont, CO 80501 
Available via SameTime Connect within Philips, caesupport2 on AIM 
"There are some who call me.... Tim?" 









"Chad Moss" <chad.moss at skyregister.com>
Sent by: 
rsync-admin at lists.samba.org
12/17/02 04:57 PM

 
        To:     <rsync at lists.samba.org>
        cc:     (bcc: Tim Conway/LMT/SC/PHILIPS)
        Subject:        rsync problem behind a router
        Classification: 



I have used rsync on many systems, and never had a problem.  I am
stumped 
on what to do with this?
I have a box behind a LinkSys router and I can not "push" or "pull" data

to or from it from anywhere?
When I try, it logs into the remote server, gets the file list and just 
stops.
The remote server shows a process running until I control-c out of
it?when 
I do that, I get:
 
rsync error: received SIGUSR1 or SIGINT (code 20) at rsync.c(229)
rsync error: received SIGUSR1 or SIGINT (code 20) at main.c(785)
 
The command I am using is:
rsync -avz -e ssh root at myserver.com:/home /home/backup/servername/
 
I have forwarded ports 22 and 873 to that machine, and I have tried 
putting it in the DMZ.
The results do not seem to change.
 
Thanks.




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