Re: [rdiff-backup-users] rdiff-backup detects that many files has changed - cifs mount

[Attila Strba]

Hi Guys,

Some more info.  I have checked the following files:
file_statistics.2012-07-27T04_00_16+02_00.data
file_statistics.2012-07-28T04_00_16+02_00.data
file_statistics.2012-07-29T04_00_16+02_00.data
file_statistics.2012-07-30T04_00_16+02_00.data

There are two strange things:
Various files, have a flag changed and an increment of size (though I am 
confident they haven't changed recently.

Example:
# Filename Changed SourceSize MirrorSize IncrementSize
Tmp/ProcessExplorer/Eula.txt 1 7005 7005 140

What is also strange that files that keep changing, in some backup 
session stops changing:
file_statistics.2012-07-27T04_00_16+02_00.data
Fachwissen/Digitale_Signalverarbeitung/TheEngineersGuideToDSP/CH20.PDF 0 
244431 244431 NA
file_statistics.2012-07-30T04_00_16+02_00.data
Fachwissen/Digitale_Signalverarbeitung/TheEngineersGuideToDSP/CH20.PDF 1 
244431 244431 184

error_log.data, mirror_metadata.data, increments.dir have a size of 0.

I also took a diff of
mirror_metadata.2012-07-26T14%3A07%3A12+02%3A00.snapshot.gz
mirror_metadata.2012-07-30T04%3A00%3A16+02%3A00.snapshot.gz

of the text file
Tmp/ProcessExplorer/Eula.txt
The changes are totaly the same, I see 9 bytes hex change at the 
beginning of the file:
72 73 02 36 46 00 1B 5D 00

Similary in other files these bytes are the same, but there are also 
more bytes that are indicated as increments.

I am missing extended_attributes, access_control_lists. Do I have to 
turn these on somehow special?

So I am more and more confused. I woul apretiate any further suggestions.


Greetings
Attila


Am 30.07.2012 01:13, schrieb Robert Nichols:
> On 07/26/2012 10:59 AM, Attila Strba wrote:
> > Hi Bob,
> >
> > Thanks for the response. It happens every time. I have disabled 
> > SELinux, still
> > the situation didn't improve.
> > Is there a way I could analyse why rdiff thinks the files are 
> > different (like
> > the security context)?
>
> The only thing I can think of is to go into the rdiff-backup-data 
> directory
> and examine the metadata files (mirror_metadata, extended_attributes, 
> access_control_lists, file_statistics, ...) for two consecutive dates 
> where
> the problem occurred and see if you can see what changed.  These are all
> ASCII text files (most are compressed), though file_statistics may have
> NUL, rather than newline, separators, so you'd have to run that through
> "tr '\0' '\n'" to make it readable.