[ale] Who's pounding on my NFS server?

Scott McBrien smcbrien at gmail.com
Thu Sep 22 14:59:28 EDT 2011


Maybe use tcpdump looking for traffic on port 2 0 4 9, then doing a cut or awk to grab the ip s, followed by a sort piped to uniq - c ?  Then you'll have a count of the connecting IP s, and how many packets you've received from each?

-Scott



On Sep 22, 2011, at 2:39 PM, Andrew Wade <andrewiwade at gmail.com> wrote:

> I'd run wireshark on the server and filter by NFS write requests and look at what source IP keeps showing up:
> 
> 
> http://wiki.wireshark.org/NFS_Preferences
> 
> On Thu, Sep 22, 2011 at 2:29 PM, Erik Mathis <erik at mathists.com> wrote:
> You might can try using ntop and looking top talkers. iirc, you can
> group by protocol. ntop gives you the ability to enlarge the text
> using CTRL + in your browser.
> 
> -Erik-
> 
> 
> On Thu, Sep 22, 2011 at 1:55 PM, John Heim <john at johnheim.net> wrote:
> > How can I tell which machines are pounding my NFS server?
> >
> > There's a bug in gvfs that causes it to do bocu writes on NFS mounted home
> > directories. This is what's been causing the slowness problem I've been
> > asking about on this list for the past couple of weeks. So I now know its
> > caused by the bug in gvfs but I don't have a good way to tell which machine
> > is currently doing all the NFS writes.
> >
> > Well, I should add that I'm blind and if I run netstat or ngrep, I have a
> > hard time with the output. I'm looking for something like top or iotop only
> > for nfs.
> >
> >
> >
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