On Monday 01 August 2005 20:58, Mark Bober wrote:
> > > Amanda changes the access-times on all the files it backups but this
> > > collides with out tmpwatch system - the files never expire :-( I hope
> > > this behavior is different with bacula.
> >
> > Bacula uses access times to decide what files to backup on Incremental
> > and Differential backups.  I'm not sure what the tmpwatch system does or
> > why it conflicts with Amanda.
>
> tmpwatch is basically a small program that deletes things out of
> directories you designate: it cleans up /tmp and other bits here and there.
> It does so by querying access time of the file; if over a chosen threshold,
> it deletes the file.
>
> If Amanda changes access time on each file it touches, then that threshold
> would never be reached.

OK, thanks for the explanation. I now understand.

>
> He's basically wondering if Bacula changes atime on files it backs up,
> cause that'll mess up tmpwatch. (and it does)

Yes, Bacula modifies atime for all files that it backs up.  However, there is 
an option "keepatime = yes", which will cause Bacula to reset the atime on 
files that it backs up.  However, this option does not work until version 
1.37.30 and later.

>
> That being said, Kern, I have access time turned off via a mount option on
> a few of my larger filesystems for specific reasons; I'd assume that won't
> completely weird Bacula out? (I haven't brought those FS's into the new
> system yet)

Well, if you are starting with 1.37.30 or later, the keepatime option should 
resolve your problems.


-- 
Best regards,

Kern

  (">
  /\
  V_V


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