Weird timeouts, not sure if I've set the right threshholds

[Denis S. Filimonov]

Almost forgot: the server has "async" option in exports.

On Friday 02 May 2008 17:16:26 Denis S. Filimonov wrote:
> Clients and the server are RHEL4.
> The mount options are as follows:
> nolock,rsize=8192,wsize=8192,nocto,nfsvers=2
>
> On Friday 02 May 2008 16:52:40 mike wrote:
> > Would you mind sharing your tuning?
> >
> > and what OS/specs the clients and server have?
> >
> > you can reply off list if you want.
> >
> > On 5/2/08, Denis S. Filimonov <den.lists at gmail.com> wrote:
> > > Hi guys,
> > >
> > > Can anyone explain the prejudice against NFS?
> > >
> > > Specifically, why would additional proxy hop be faster than serving
> > > files from NFS?
> > > I can see two points in favor of NFS:
> > > - NFS client caches files while Nginx doesn't (yet)
> > > - Nginx doesn't support keepalive connections to upstream, hence
> > > additional latencies and traffic for TCP handshake/finalization. NFS
> > > doesn't have this issue since it typically works over UDP.
> > >
> > > I do have a couple boxes serving a lot of traffic (mostly PHP) from
> > > NFS. It works just fine, though it did take some NFS tuning.
> > >
> > > On Friday 02 May 2008 16:05:21 Cliff Wells wrote:
> > > > On Fri, 2008-05-02 at 12:46 -0700, mike wrote:
> > > > > ohh.
> > > > >
> > > > > well, i am not sure the NFS server is up to that much load... i've
> > > > > never really looked at doing something like that.
> > > >
> > > > Using Nginx will probably reduce the load.  I haven't used NFS in a
> > > > long while but I don't recall it being all that lightweight.
> > > >
> > > > I suspect that if your NFS server seems heavily loaded it's exactly
> > > > because you are using NFS to serve public files.
> > > >
> > > > > besides, i still need NFS there for all writes and normal
> > > > > filesystem access. it's not just an HTTP GET environment..
> > > >
> > > > You can run both. The main point is to only serve files to the public
> > > > using Nginx and reduce NFS access to only internal use.
> > > >
> > > > Regards,
> > > > Cliff
> > >
> > > --
> > > Denis.



-- 
Denis.