On Mon, 2011-05-02 at 22:28 +0200, Stef Bon wrote:
> 2011/5/2 Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>:
>
> >>
> >> So, what's your opinion?
> >
> > Your proposal requires NFS and CIFS protocol support and I just told you
> > that there is none in NFS...
>
> Hi,
>
> yes I've read that. I also have read that there is possibly support
> for in newer versions in NFS.
As I said, there is support for dnotify-like functionality in NFSv4.1,
but no support for inotify, and certainly not for fanotify.
> I imagined that you (not only you but I mean all who are working on
> NFS) are interested to find a good way to do this.
You've proposed a 'solution', but I'm still not seeing what the problem
is.
1. Why do we need to develop kernel support for dnotify+inotify+...
in every networked filesystem + fuse?
2. What are the killer app use cases that we need to support and
that cannot be supported with existing methods?
Notifications on large distributed filesystems are a scalability
nightmare (particularly so for inotify), so they need careful
justification and need to be limited in scope. Just pulling out a
solution from your magic hat isn't sufficient.
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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