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Old 05-11-2010, 02:29 PM   #1
mfitzpat
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Registered: Feb 2004
Location: Boston, MA
Distribution: Centos
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nfsd lots read/write, file/process causing problem


Hi,

I have a cluster running Centos5.3. I have login/user nodes that are nfs shared/automounted on my compute nodes. NFS is working properly with access/read/write.

My issue is that when one of my users runs his job, the number nfs daemon on the user/login node increases. From top, the nfsd daemon goes into either S or D. To me this indicates a lot of read/writes from the compute nodes to the login/user node.

I know the program the user is running, but is there a way to drill down to find out exactly what files from the program are causing the excessive r/w on the user/login node.

Thanks
mef
 
Old 05-11-2010, 02:48 PM   #2
Tinkster
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You could check it w/ lsof


Cheers,
Tink
 
Old 05-11-2010, 02:58 PM   #3
mfitzpat
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Registered: Feb 2004
Location: Boston, MA
Distribution: Centos
Posts: 27

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Thanks, that is a good starting place.
 
  


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