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Date:      Wed, 11 Mar 1998 17:04:53 -0600 (CST)
From:      Kevin Day <toasty@home.dragondata.com>
To:        dev@wopr.inetu.net (Dev)
Cc:        isp@FreeBSD.ORG
Subject:   Re: Runaway web server.
Message-ID:  <199803112304.RAA18688@home.dragondata.com>
In-Reply-To: <Pine.BSF.3.95q.980311174734.6707A-100000@wopr.inetu.net> from Dev at "Mar 11, 98 05:52:13 pm"

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> 
> We have a freebsd 2.2.5 server w/96 megs of ram
> running 13 instances of apache. (each spawning
> about 5-10 children).
> 
> it seems something triggers _all_ of the servers
> to become in the run state. about 4 or 5 children
> seem to be using about 8 mb of ram. it is very
> hard to actually kill the processes. (not just
> from lag, but the process not dying after being
> sent a kill signal).
> 
> when trying to kill the session leader it does not
> seem to die.
> 
> The servers get stuck in a "waiting for reply"
> state and never seem to respond. This server has
> been up for over 40 days running fine.
> 
> We have finally rebooted the machine, and after
> about four hours it happened again. 
> 
> Anyone have any suggestions?
> 

Is this a somewhat old version of apache?

If so, someone's exploiting a bug...  adding a ton of /'s in a URL will
cause apache to come to a crawl...

Kevin

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