Re: [rdiff-backup-users] ignore file access error

[Chris Wilson]

Hi all,

On Fri, 14 Mar 2014, Dominic Raferd wrote:
> On 13/03/2014 20:23, Martin Mazur wrote:
> > for a few weeks I am using rdiff-backup and I am very happy with it.
> >
> >   From time to time Cron is sending me errors like this:
> >
> > UpdateError website/logs/ssl_access.log Updated mirror temp file
> > /var/data/backup/www/website/logs/rdiff-backup.tmp.213 does not match
> > source
> >
> > Since there is not much I can do about this error I don't wont it to be
> > displayed. Is there a way of doing this?

As Dominic (and Ben Escoto) said, the best way to actually fix this is to 
backup from LVM snapshots or xfs freeze. Other workarounds include:

* exclude files from your backup that change often,

* or make an unchanging copy somewhere for backup (mysqlhotcopy etc.),

* live with the fact that they will sometimes/often/never be backed up.

Personally I hide these errors by piping the output of rdiff-backup into 
grep:

        rdiff-backup \
                --exclude-device-files \
                source dest \
                2>&1 | grep -v "^UpdateError .* Updated mirror temp file 
.* does not match source"

(the grep expression should be all on one line, not wrapped by my email 
client).

You can filter out more specific patterns, such as /var/log, so that you 
don't get caught out when your important documents and virtual machine 
images aren't backed up because your applications are modifying them all 
the time.

Cheers, Chris.
--
_____ __     _
\  __/ / ,__(_)_  | Chris Wilson <address@hidden> Cambs UK |
/ (_/ ,\/ _/ /_ \ | Security/C/C++/Java/Ruby/Perl/SQL Developer |
\__/_/_/_//_/___/ | We are GNU : free your mind & your software |