On Thu, Sep 10, 2009 at 10:14 AM, Chris Murphy <chris at castlebranch.com> wrote: > > > lhecking at users.sourceforge.net wrote: > > Do you have anything running that would try to read all the files and build > a > search index - like beagle? There's also the nightly run of updatedb but > that > just reads the filenames and normally nfs mounts are excluded. > > > > There is no package beagle installed, I don't know if any other software > doing this is part of a standard CentOS install. Definitely not updatedb, > mlocate.cron runs once a day in the early morning, but the load pattern > we see is a continuous increase. > > > > We had a similar issue with 100 CentOS 5 and Fedora 7 desktops mounting > their $HOME directories from a Centos 4 server. We would see a steady > (perfectly linear) increase of getattr and lookup requests from the time > users logged in until they shutoff their machines (logging off stopped the > linear growth but didn't always bring the number of requests down). Running > hundreds of dstats and straces finally showed that the gamin package on each > of the clients was causing all of the requests and simply killing that > single process would instantly drop the getattr requests from 200 a second > down to 3 or 4 a second where it should be. That was 200 per client so you > can imagine how bad it would get! We rebuilt the gamin-0.1.9-5.rpm package > and deployed it to all of the machines. We instantly saw improvement and we > currently average 3 getattr requests a second. I don't know if this will > help your situation but maybe someone will benefit. How about the gamin patch you rebuilt with? Or at least a bugzilla entry with it... -Ross