On 17Jul2007 11:16, Justin W <jlist@xxxxxxxxxx> 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,
Don't you create filesystems with mkfs/e2mkfs ?
You need to use dd to make a file to _hold_ the filesystem, but that's
just a chunk of data; it's not a filesystem until you use mkfs.
>> 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]
No other messages?
>> 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.
Correct.
>> 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).
Half of rsync is crashing; it forks. Run "strace -f", and then look at the
pid that _isn't_ the one printing the error message.
> 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(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
[...]
>> Attached is the backup script I use (the configuration file it loads in
>> is very simple, so I'm not including that).
Regrettably, that's just the code that prints the error message. See if
"strace -f" is more informative.
--
Cameron Simpson <cs@xxxxxxxxxx> DoD#743
http://www.cskk.ezoshosting.com/cs/
These aren't the droids you're looking for.
