Re: [rdiff-backup-users] Problems with backup to CIFS

[Andrew Ferguson]

Mario,

The code in question:

----------------------------------------------
upper_a = subdir.append("A")
upper_a.touch()
lower_a = subdir.append("a")
if lower_a.lstat():
        lower_a.delete()
        upper_a.setdata()
        assert not upper_a.lstat()
        return 0
else:
        upper_a.delete()
        return 1
----------------------------------------------

1) creates the file 'A'
2) Tests if the file 'a' now exists
3) If it does not exist, then the filesystem is case-sensitive (A != a)
4) If it does exist, then the filesystem is case-insensitive (A == a)
If the filesystem is case-insensitive, delete file 'a', then check that
this goes both ways and file 'A' no longer exists

upper_a.setdata() re-rsyncs rdiff-backup's internal data structure that
describes the state and metadata of a given file (in this case the file
'A').

I believe that this exception is do to some sort of caching or
synchronization weirdness. It is present only when backing-up to
SMB/CIFS systems, and only for certain users.


Andrew

Mario Doering wrote:
> When commenting out the line 238 in fs_abilities.py, everythings seems
> to work as normal.
> 
> But I have no clue if this could do lead to other problems later.
> 
> What does this line exactly check?
> 
> And what does upper_a.setdata() do?
> 
> 
> I did this with rdiff-backup-1.0.4 (this version is marked stable in
> gentoo).
> 
> 
> 
> 
> On Fri, 16 Mar 2007 16:56:09 +0100
> Mario Doering <address@hidden> wrote:
> 
>> Hello,
>> 
>> are there any news on this subject:
>> 
>> http://lists.nongnu.org/archive/html/rdiff-backup-users/2007-03/msg00000.html
>> 
>> 
>> I have exactly the same problem.
>> 
>> The same error when trying to back up to a terastation.
>> 
>> 
>> But no problems when trying to backup on a real windows computer with
>> the same mount options.
>> 
>> Regards,
>> Mario.
>> 
>> 
>> _______________________________________________
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>> http://lists.nongnu.org/mailman/listinfo/rdiff-backup-users
>> Wiki URL:
>> http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki
> 
> 
> _______________________________________________
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> 

-- 
Andrew Ferguson - address@hidden