[CentOS] [Solved] Excessive NFS operations

lhecking at users.sourceforge.net lhecking at users.sourceforge.net
Sat Oct 3 16:24:04 UTC 2009


> >>   Maybe it is updating the access time on each read or something that 
> >> causes the activity.
> > 
> > It is either re-reading the files or checking mod times to determin
> > if the local cached copy is valid. Either way, lots of traffic.
> 
> And this was hundreds of ops/second?

 I need to ppoint out that the retieval script was running on a RHEL3
 machine. The filer NFS load was registered from a CentOS5 machine,
 and the only connection between the two were one or more vnc sessions.
 I cannot explain what happened, other than the observation that the
 excessive NFS access from the CentOS machine stopped when we disabled
 that screensaver on RHEL3.




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