Samba and MS Shadow Copy

[Jeremy Allison]

On Tue, Aug 05, 2003 at 08:02:35AM -0700, Richard Sharpe wrote:
> > 
> > > > 2.  The VFS routine for "stat" includes a cache for file 
> > > stats.  Samba 
> > > > has a HUGE amount of stat requests going on.  This code 
> > > will keep the 
> > > > stat in cache for one second.  A lot of operations (open 
> > > with create, 
> > > > unlink, etc.) will invalidate the cache.  Tests have shown NetBench 
> > > > operations get a 70% cache hit. (!)
> > > Interesting... Is this of a general use?
> > 
> > Yes.  It comes with no warranty, though.  :-)
> 
> This is very interesting ...

The problem is it may violate guarentees for files existing
etc. accross smbds and external processes. I think that's
why it has no warranty :-).

I want to study it carefully....

Jeremy.