[rdiff-backup-users] Re: Computed SHA1 digest doesn't match recorded digest

[Daniel Miller]

No response ... yet. does that mean that no one knows how to fix this  
problem?

I'm still getting the error on each successive backup.

Also, a possibly related question. It is my understanding (and seems  
to hold true after checking on my setup) that rdiff-backup does not  
backup a new version of a file if the file changes while rdiff-backup  
is backing up the file. For example, if a log file changes while  
rdiff-backup is backing it up rdiff-backup will discard whatever  
version it got and leave the archived version at the last  
successfully backed up state. I'm having this issue on several log  
files, and it happens on the same log files every night, meaning that  
the particular files in question have not been updated since the  
initial backup (months ago). Is there any way to tell rdiff-backup to  
keep whatever it gets, regardless of whether the files changes while  
being backed up?

~ Daniel


On Aug 3, 2009, at 9:27 AM, Daniel Miller wrote:

> Recently I got an error message during the verify phase of my backup:
>
> Warning: Computed SHA1 digest of usr/local/pgsql829/data/base/ 
> 16417/104934
>    0520c6624e91386b43c6bdcdaddfb8df0617ec86
> doesn't match recorded digest of
>    f1629023c48ff184d702ea59d07fdd88f55fad03
> Your backup repository may be corrupted!
>
> I have continued to receive the same error on subsequent backup/ 
> verify cycles. Lucky for me this file is probably not of critical  
> importance -- it is a PostgreSQL system data file (I have a  
> separate pgdump archive that would be used to restore the database  
> if needed).
>
> However, I would like to put the repository in a state that does  
> not produce this error on verify. How to I recover from this error?  
> Is there any way to restore the integrity of my repository?
>
> System details:
> Mac OS X Server 10.5.7
> rdiff-backup 1.2.8
> Python 2.6.2
> librsync-0.9.7 (patched with librsync-largefile.patch)
> xattr-0.4
>
> ~ Daniel