rsync - Jan 2009 - DO NOT REPLY [Bug 6032] New: error in rsync protocol data stream

https://bugzilla.samba.org/show_bug.cgi?id=6032

           Summary: error in rsync protocol data stream
           Product: rsync
           Version: 3.0.4
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: core
        AssignedTo: wayned@samba.org
        ReportedBy: rmang@lexiconn.com
         QAContact: rsync-qa@samba.org


Command:
/usr/bin/rsync -aze /usr/local/ssh/bin/ssh --hard-links --force --ignore-errors
--numeric-ids --delete --exclude=/sys --exclude=/proc
--exclude=/var/named/chroot/proc --exclude=/home4 --exclude=/home5
--exclude=/backup --exclude=/var/log --exclude=/home/logs
--exclude=/home2/logs/ $server:/ /home/backup/$short

The error happens at the same spot during the rsync copy:
Read from remote host $server: Connection reset by peer
rsync: connection unexpectedly closed (16892096 bytes received so far)
[receiver]
rsync error: error in rsync protocol data stream (code 12) at io.c(632)
[receiver=3.0.4]
rsync: connection unexpectedly closed (408 bytes received so far) [generator]
rsync error: unexplained error (code 255) at io.c(632) [generator=3.0.4]


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------- Comment #1 from rmang@lexiconn.com  2009-01-13 22:06 CST -------
Created an attachment (id=3875)
 --> (https://bugzilla.samba.org/attachment.cgi?id=3875&action=view)
rsync-debug output (last 200 lines)

This is the last 200 lines from the 10 MB rsync-debug output file. I was not
able to get a core dump. If you need anything else, please let me know. The
rsync fails on the same file/location every time.


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matt@mattmccutchen.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




------- Comment #2 from matt@mattmccutchen.net  2009-01-13 23:10 CST -------
It looks like neither rsync process intentionally closed the connection, so it
must have been dropped by the network.  This is not a bug in rsync.


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------- Comment #3 from rmang@lexiconn.com  2009-01-13 23:26 CST -------
ok, just seems strange that the rsync fails every time on the same
dovecot.patched.tar.gz file. Any pointers on how to t/s would be appreciated.


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------- Comment #4 from matt@mattmccutchen.net  2009-01-15 18:02 CST -------
That is strange, but the output does seem to indicate pretty clearly that rsync
is not the thing closing the connection.  It's possible that the file is
triggering a data-dependent bug in ssh or even the network (but that seems
unlikely because ssh would be encrypting with a different random key each
time).  In any case, you could see whether rsync fails in the same way when you
do any of the following:

- Remove the -z option.

- Transfer using an rsync daemon instead of ssh (unless the file is secret).

- Transfer the file between a different pair of hosts.

- Make a copy of the file, modify it slightly (e.g., modify a few bytes or
slightly lengthen or shorten it), and transfer that.


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