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Date:      Mon, 10 Feb 2003 19:50:39 +0100 (CET)
From:      Bogdan TARU <bgd@icomag.de>
To:        Tim Kientzle <kientzle@acm.org>
Cc:        <freebsd-hackers@FreeBSD.ORG>
Subject:   Re: gettings snapshots of load spikes
Message-ID:  <20030210194805.A47097-100000@fw.office.icom>
In-Reply-To: <3E47ECBD.4090809@acm.org>

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	hi Tim & all,

> >  I am having a real weird problem with a newly installed Dell PowerEdge
> > 2650 which acts as a web (Apache) and mail server(Procmail). The load just
> > 'spikes' sometimes (to 40.00 or so), but immediately starts to go down.
>
>
> Could be Apache restarting a bunch of children all at once.
> Could be a burst of CGI requests.

 I have seen sometimes the number of running processes jumping from 1-2 to
200 or so, which are the apache kids, but that doesn't produce a system
load at all.

> Try looking at your 'top' snapshots just before and after
> the spike.  Look to see if there are any processes
> whose PIDs seem to have changed.  That might indicate
> that some processes are getting restarted.

 I will try to do that indeed, even though I will have to compare the pids
of all apache children processes...

>
> Also, look in your apache and mail server log files
> to see if you're getting a burst of some sort of
> errors around that time.


 I have, and found nothing there at all (looked into the system logs as
well, same outcome).

 Thanks for your answer,
 bogdan


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