NFS Problems under Redhat 6.0

[Terry Barnaby]

> Terry Barnaby wrote:
> > 
> > We had problems with NFS in 2.2.3 -> 2.2.6 kernels. The main one being
> > some problem with caching. If on one machine you deleted an executable
> > another machine with the file system NFS mounted could still execute this
> > executable ! The change would only happen latter.
> 
> Have you tried turning off attribute caching via the "noac" mount
> option?  This is required by MPI anyway.  In principle, attribute
> caching is a bad idea when multiple clients are actively writing to the
> common filesystem on the server.

No I have'nt, teh 2.0.36 and now 2.2.9 kernels do not seem to have the problem.
As a matter of interest why does MPI require this option ?

Terry

> 
> Josip
> 
> -- 
> Dr. Josip Loncaric, Senior Staff Scientist        mailto:josip@icase.edu
> ICASE, Mail Stop 132C                       http://www.icase.edu/~josip/
> NASA Langley Research Center             mailto:j.loncaric@larc.nasa.gov
> Hampton, VA 23681-2199, USA    Tel. +1 757 864-2192  Fax +1 757 864-6134

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