[Beowulf] Troubleshooting NFS stale file handles

Charlie Peck charliep at cs.earlham.edu
Thu Apr 20 08:59:10 PDT 2017

+1 for looking at the MTUs. I just finished debugging what was manifesting as transient NFS problems of various types but turned-out to be MTU mis-matches.


> On Apr 20, 2017, at 09:51, Gavin W. Burris <bug at wharton.upenn.edu> wrote:
> Remembering that I once had two switches that were not allowing jumbo frames over a crossover link.  Similar if not the same symptoms.
> Cheers.
> On Thu 04/20/17 09:17AM EDT, Gavin W. Burris wrote:
>> Hi, Prentice.
>> Have you checked MTU matches on all NICs and is honored by the router?
>> Cheers.
> -- 
> Gavin W. Burris
> Senior Project Leader for Research Computing
> The Wharton School
> University of Pennsylvania
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