[Beowulf] Determining NFS usage by user on a cluster

[John Hearns]

On Thu, 2006-04-20 at 08:54 +0100, Guy Coates wrote:
> Konstantin Kudin wrote:
> >  Hi all,
> > 
> >  Is there any good solution to find out which user is loading the NFS
> > the most in a cluster configuration?
> > 
> 
> iftop is quite a handy tool; it displays traffic on a per-host basis, so
> if a particular node is hammering your NFS server, it will show right up.
> 
> http://www.ex-parrot.com/~pdw/iftop/


Etherape might be a useful tool also.

http://etherape.sourceforge.net/
It has a graphical 'radar display' of traffic to/from network hosts.
I have found it very useful in the past for monitoring/debugging.
I'd hazard a guess though that in a cluster on full song you'll get a
busy display, but you should be able to spot any 'hot' nodes.