On Thu, Sep 10, 2009 at 10:14 AM, Chris Murphy <chris@xxxxxxxxxxxxxxxx> wrote:
>
>
> lhecking@xxxxxxxxxxxxxxxxxxxxx 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
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