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From Jeff Trawick <>
Subject Re: [users@httpd] Runaway Apache Process
Date Wed, 27 Jan 2010 13:52:24 GMT
On Wed, Jan 27, 2010 at 8:46 AM, Dan Bunyard <> wrote:
> @Mark
> I will do that the next time it happens.  I will also trim down the modules,
> I think I had done a mass install of a bunch of things I needed but in the
> process picked up a lot of them that I don't/won't use.

That's a good suggestion and should be followed, but relative to this
problem symptom: I don't think that will help memory consumption much
on Linux.  There's only one copy of the code in memory, none allocated
from swap, and modules rarely use that much heap unless they've been
> @Jeff
> I will try that as well.  I'm unsure how to do a strace either to be
> honest.

sudo strace -o /tmp/tracefile -p PID
where PID is one of the high CPU httpd processes you picked at random
(run top, see which ones have high CPU)

>          I can't imagine this is from shear number of requests.  In the hour
> or so leading up to the event there are only 123 GET requests logged in the
> access_log file.  That just about one every 30 seconds, I can't see that
> being a problem.

Are they different requests at the time of the problem symptom perhaps?
Otherwise, something "goes bad" and the app starts malfunctioning from then on.

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