Rsync fails on local transfers

[Michael H. Semcheski]

I usually try searching the source code in the application for that
specific error message.

That way, you can get an idea what condition is causing the error...

Mike

On 7/17/07, Justin W <jlist at jdjlab.com> wrote:
> Justin W wrote:
> > I've got a script I wrote up which backs up my computer using rsync.  A
> > short overview is that I created a file system image using dd, and now I
> > mount the image and rsync from the server's HD to the image file.
> >
> > Periodically during large backups, I get the following error:
> >
> >     rsync: connection unexpectedly closed (16931 bytes received so far)
> >     [sender]
> >     rsync error: error in rsync protocol data stream (code 12) at
> >     io.c(453) [sender=2.6.9]
> >
> > When I Google for the problem, I get many results about a SSH connection
> > timing out because of inactivity during the delete stage, but I'm not
> > using SSH, so I don't get why I would have this problem: both the source
> > and destination are local.
> >
> > Any ideas on how to debug this would be great. I've thought of using
> > strace, but it'd result in a huge file which would have to be sorted
> > through (as rsync isn't technically crashing, rsync would continue with
> > a shutdown procedure and the logging wouldn't stop right at the point of
> > failure).
> >
> Actually, looking through my script, I had stuck an strace in there at
> some point.  I currently have a 165MB trace in my /tmp directory.
> Here's the last few lines of it:
>
>     write(1, "usr/lib/locale/nb_NO/LC_IDENTIFI"..., 39) = 39
>     select(5, NULL, [4], [4], {60, 0})      = 1 (out [4], left {60, 0})
>     write(4, "\222\1\0\0", 4)               = 4
>     read(3, "\31\21\3
>     \20\0\0\0H\0\0\0m\0\0\0\213\0\0\0\305\0\0\0\306"..., 402) = 402
>     select(5, NULL, [4], [4], {60, 0})      = 1 (out [4], left {60, 0})
>     write(4, "\31\21\3
>     \20\0\0\0H\0\0\0m\0\0\0\213\0\0\0\305\0\0\0\306"..., 402) = 402
>     select(5, NULL, [4], [4], {60, 0})      = 1 (out [4], left {60, 0})
>     write(4, "\0\0\0\0", 4)                 = 4
>     select(5, NULL, [4], [4], {60, 0})      = 1 (out [4], left {60, 0})
>     write(4, " \231\37\271<7(k\332\215\325q\220\343:\200", 16) = 16
>     close(3)                                = 0
>     select(6, [5], [], NULL, {60, 0})       = 1 (in [5], left {60, 0})
>     read(5, "", 4)                          = 0
>     write(2, "rsync: connection unexpectedly c"..., 76) = 76
>     write(2, "\n", 1)                       = 1
>     rt_sigaction(SIGUSR1, {SIG_IGN}, NULL, 8) = 0
>     rt_sigaction(SIGUSR2, {SIG_IGN}, NULL, 8) = 0
>     wait4(8702, 0x7fff762db284, WNOHANG, NULL) = -1 ECHILD (No child
>     processes)
>     getpid()                                = 8701
>     kill(8702, SIGUSR1)                     = -1 ESRCH (No such process)
>     write(2, "rsync error: error in rsync prot"..., 86) = 86
>     write(2, "\n", 1)                       = 1
>     exit_group(12)                          = ?
>
> > Attached is the backup script I use (the configuration file it loads in
> > is very simple, so I'm not including that).
> >
> > Justin W
> >
> Justin W
>
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