rsync - Apr 2012 - [Bug 8895] New: rsync warning: some files vanished

https://bugzilla.samba.org/show_bug.cgi?id=8895

           Summary: rsync warning: some files vanished
           Product: rsync
           Version: 3.0.9
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: core
        AssignedTo: wayned at samba.org
        ReportedBy: toralf.foerster at gmx.de
         QAContact: rsync-qa at samba.org


Today I got this message - for the first time as far I can remember :

rsync warning: some files vanished before they could be transferred (code 24)
at main.c(1052) [sender=3.0.9]

It happens at an almost stable Gentoo with kernel 3.3.3, booted from an
external USB disk.

The rsync backup's from that external USB disk to another luks-encrypted USB
disk using these parameters :

--archive --cvs-exclude --delete --delete-excluded --devices
--include-from=/include.list --exclude-from=/exclude.list --itemize-changes
--link-dest=$REF

BTW it was the first time, that I accessed the backup disk not directly as
/dev/sdc1, instead I used /dev/disk/by-uuid/<uuid>
I do the backup nearly daily, so with the given $REF (the directory from the
day before) rsync mostly has to make hard links at the external USB disk.

FWIW the system was under load (~5-6), b/c I run in parallel a compile job
(make -j 2) and was within the dokcing station, all USB disks were atatched
directly to the notebook.

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https://bugzilla.samba.org/show_bug.cgi?id=8895

Kevin Korb <rsync at sanitarium.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rsync at sanitarium.net

--- Comment #1 from Kevin Korb <rsync at sanitarium.net> 2012-04-25
19:09:21 UTC ---
This warning happens whenever rsync sees a file during the indexing phase but
by the time it gets around to actually copying the file it is no longer there
(as in something else deleted it).

This is most common on things like email spools but I can see a compile job
causing it as well.

Usually it can be safely ignored. However, you should look higher in the output
as rsync should have said what file(s) vanished.

The path to the device that you mounted would not matter to rsync.

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--- Comment #2 from Toralf F?rster <toralf.foerster at gmx.de> 2012-04-25
19:32:03 UTC ---
Ah - thx, therefore not a bug (but then I must mis the line with the vanished
file name ...)

BTW do you know, whether a special return code is used in this case ? Then I
could catch this special case.

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Kevin Korb <rsync at sanitarium.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|rsync at sanitarium.net        |

--- Comment #3 from Kevin Korb <rsync at sanitarium.net> 2012-04-25
19:44:54 UTC ---
Yes, exit code 24.

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Toralf F?rster <toralf.foerster at gmx.de> changed:

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

--- Comment #4 from Toralf F?rster <toralf.foerster at gmx.de> 2012-04-25
20:28:49 UTC ---
thx

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