[Lustre-discuss] Job fails opening 24k files and keeps them open during execution

[Brian J. Murrell]

On Wed, 2009-03-04 at 16:27 -0500, Osvaldo Rentas wrote:
> Hello,
> 
>  
> 
> I am working with a user that has  Fortran code that opens 24.000
> files and keeps them open during execution.  We had to adjust our
> kernel parameters to allow this to happen, since Linux cuts you off at
> 1024 by default.  This is job runs successfully for him on the local
> disk of a Linux machine, but when he moves the job to Lustre, it
> fails.  The metadata servers are running Red Hat …do they impose their
> own user limitations as well?  Or is there a limitation within Lustre
> or a config file? 

Fails in what way?  You don't say anything other than "it fails".  We
can't even begin to try to guess what the problem is without a better
description of what the failure looks like.

b.


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