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Re: [rdiff-backup-users] rdiff-backup detects that many files has change

From: Robert Nichols
Subject: Re: [rdiff-backup-users] rdiff-backup detects that many files has changed - cifs mount
Date: Mon, 30 Jul 2012 19:38:20 -0500
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On 07/30/2012 02:38 AM, Attila Strba wrote:
Hi Guys,

Some more info. I have checked the following files:

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.

# 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
Fachwissen/Digitale_Signalverarbeitung/TheEngineersGuideToDSP/CH20.PDF 0 244431
244431 NA
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

of the text file
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?

The "1" flag in file_statistics is just the result of rdiff-backup thinking that
something changed.  The small IncrementSize is the size of the "compressed"
(larger than the original, actually) string that indicates "no change".  The
extended_attributes and access_control_lists files will only be present if
the file system being backed up actually uses those features.

I had a thought.  In the manpage for rdiff-backup, see if the paragraph for
the "--no-compare-inode" option might explain what is happening.

Bob Nichols     "NOSPAM" is really part of my email address.
                Do NOT delete it.

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