>>>>> On Tue, 6 Dec 2011 11:17:59 +0100, Christoph Kluenter said:
>
> * Am Thu, Jan 20 2011 at 11:21:30 +0000 , schrieb Martin Simmons:
> > >>>>> On Wed, 19 Jan 2011 15:48:13 +0100, Frank Altpeter said:
> > >
> > > After a short discussion on the channel, I was advised to create a
> > > post here to see if there's help for that or if it's really a bug.
> > >
> > > I've got a machine that is using bind mounts. Despite the fact that
> > > the fileset definition is using "onefs=no" and "fstype=ext3", the bind
> > > mounts' content is saved which results in multiple saves of the same
> > > content.
> > >
> > > I know I could simply add the relevant mount points on the exclude
> > > list in the fileset, but I think it would make sense if this is
> > > considered like other fstype configurations as well, since I don't
> > > like to manually tweak the fileset on every possible change of the
> > > bind mounts, and to keep the default fileset simple and generic.
> > >
> > > I've put some addional information on http://racoon.pastebin.com/r44RTxyP
> > >
> > > The bacula-fd has version 2.4.4 on opensuse 11.1 and the server is
> > > running 5.0.3, on SLES 11.1
> > >
> > >
> > > Any hints appreciated.
> >
> > Bacula implements onefs by looking for changes in the stat.st_dev (Device)
> > field and implements fstype by calling statfs. Unfortunately, both of these
> > return the values associated with the target directory for bind mounts, so
> > the
> > mount point looks like a normal directory to Bacula.
> >
> > You can see that by comparing the output printed by for / and /backup:
> >
> > stat / /backup
> > stat -f / /backup
> >
> > I don't know if that counts as a bug or not.
>
> I just hit this "bug". Since the clients bindmounts are quite volatile, it
> would be hard to
> generate a fileset. Any other ideas how to force bacula to ignore bindmounts ?
I don't think Bacula can do it internally.
Depending on exactly how volatile they are, you could generate an exclude list
at the start of the job adding something like this to the fileset:
Exclude {
File = "\\|list-bind-mounts.sh"
}
Implement list-bind-mounts.sh using /etc/mtab or /proc/mounts.
Alternatively, whatever creates the bind mounts could keep a list of them.
__Martin
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