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Re: [Condor-users] nfs and condor



How are you adding the writes after each job?

I was wondering if there are any tricks I can do such as writing log
files to local filesystems instead of NFS. Can I place, "log",
"output", and "error" to local directories?



On Sun, Jun 12, 2011 at 6:27 AM, Erik Aronesty <erik@xxxxxxx> wrote:
> I've noticed one issue with NFS that may or may not be related.  Some NFS
> systems are "clusters" of storage nodes that are striped across the set of
> machines.   In these NFS systems, a client connects to one node, and the
> information may propagate to other nodes after some time lag.
>
> If you're using condor, this means that your NFS mounts on the submitter and
> execution nodes may be out of sync...since each mount may be to a different
> physical storage cluster node.
>
> Adding small delays after writing files that both the execution and
> submitter node need to see fixed the problem for us.
>
> On Sun, Jun 12, 2011 at 6:15 AM, Mag Gam <magawake@xxxxxxxxx> wrote:
>>
>> At our university we are a heavy NFS user. When we run run long jobs
>> with condor and there is a performance problem with our home
>> directories (which on are NFS). It seems the job gets requeued.
>>
>> I was wondering if anyone else out there have a similar problem and
>> what they did to fix it :-)
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