Squatter causing load spike

Gerard gerard.cluster at gmail.com
Tue Nov 13 17:27:09 EST 2007

On Nov 13, 2007 5:07 PM, Rob Banz <rob at nofocus.org> wrote:
> On Nov 13, 2007, at 16:47, Gerard wrote:
> > I am running squatter at 3am as a cron job on all of my servers. Over
> > the passed week I have one server where squatter spikes the load and
> > ends up locking up the server at around 8am every morning. Yeah, it
> > seems to take that long to run which may be an issue in itself. Has
> > anyone come accross this or have a suggestion on how to get squatter
> > to perform better?
> > ----
> What OS?
> Squatter shouldn't be causing "load spikes" unless there's some
> resource contention for lock files, etc.
> You should also make sure that if you're running cyr_expire, you're
> NOT running it concurrently with squatter.  Bad things happen.*  To
> get around this, I created a "nightly" shell script which runs
> cyr_expire, then squatter, and kick that off as a scheduled task in my
> cyrus.conf.
> * The bad things come into play if expire & squatter are processing
> the same mailbox at the same time.  Squatter will probably just
> "stop", and not tell you why.
> -rob
> ----
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It seems like the default for cyr_expire runs at 4:00AM (delprune
cmd="cyr_expire -E 3" at=0400) and I start squatter at 3:00AM. Do you
think that this would cause the spike and server to lock up? We are
running RHEL4U4

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