Date: Mon, 20 Feb 2012 15:30:03 +0100 From: n dhert <ndhertbsd@gmail.com> To: freebsd-questions@freebsd.org Subject: htpd going wild Message-ID: <CAEFCw4s0GPzuk6Rs1pgG9ZCx_CYTxM%2BR0DLCTFGab0v7HiVVWQ@mail.gmail.com>
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FreeBSD 8.2-RELEASE, all sucerity patches applied, all ports updated to the
latest version (every week)
In the last 6 months I have experienced 3 or 4 times the httpd deamon
(apache-2 latest version) going 'wild',
that is: an ever increasing number of httpd processes is being launched.
In a top (shows default the 18 most consuming processes), after a short
time all the 18 top processes are httpd
It shows a load of 30, 40, and ever increasing
interactive response, loggin-in, etc... gets very slow...
I can only try to do
# apachectl stop
(which takes long to type, and get processed also :-( )
I already installed the FreeBSD port mod_limitipconn
and specify in my Virtual hosts:
<VirtualHost *:80>
Servername mysubdom.subdom.topdom
DocumentRoot "my__document__root"
<IfModule mod_limitipconn.c>
<Location />
MaxConnPerIP 3
# exempting images from the connection limit is often a good
# idea if your web page has lots of inline images, since these
# pages often generate a flurry of concurrent image requests
NoIPLimit image/*
</Location>
</IfModule>
</VirtualHost>
But seems no help ...
I can't figure out what can be the cause...
My apache is the latest for FreeSBD, I don't think it's a bug in Apache,
Is it some external websurfer/crawler that causes this huge load ??
I looked in the log files but can't find a 'smoking gun'
Any one ideas how to find the cause and how to deal with it ??
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