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From Jean-Christophe Montigny <...@assoces.com>
Subject Re: [users@httpd] Why so many apache processes?
Date Mon, 11 Jul 2005 08:18:15 GMT
Hello,

Look back at your config. It says 5 threads minimum, so at elast 6 
processes are spawned when apache is started : the main process and 5 
childs. Your config says 50 max, so at maximum there would be 50 
threads... Normally, there's another config option that states how many 
threads are started at startup (in apache 1.3 at least..) so that's why 
there is a certain number of childs that are started straight... (18 in 
your case) It's better, anyway, because in case of a peak the system 
will be ready to answer a lot of requests. If you don't want that many 
processes running, just lower your maxSparesTHreads



Krist van Besien a écrit :
> Hello,
> 
> On aLinux system I have an Apache, with multi threaded worker, and the
> following in the conifg:
> 
> <IfModule worker.c>
> StartServers         1
> MaxClients         50
> MinSpareThreads     5
> MaxSpareThreads     50
> ThreadsPerChild     5
> MaxRequestsPerChild  100000
> </IfModule>
> 
> Just after having started though I notive quite a few processes:
> 
> 
> root     28544     1  5 10:09 ?        00:00:02 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28546 28544  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28547 28544  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28548 28547  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28550 28548  1 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28551 28548  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28552 28548  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28553 28548  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28554 28548  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28555 28548  0 10:09 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28592 28544  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28593 28592  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28595 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28596 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28597 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28598 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28599 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> apache   28600 28593  0 10:10 ?        00:00:00 /usr/sbin/apache2 -k
> start -D SSL -D PHP4
> 
> 
> Why is that? I would have expected only two: The main process, and one
> child. The server is serving no requests, so should not be spawning
> additional children.
> 
> Krist
> 


-- 
Jean-Christophe Montigny
Responsable Commission Web, Association Planètes
Responsable serveurs assoces.com, Association Planètes
Etudiant de deuxième année à Grenoble Ecole de Management
Majeure Conseil en Organisation des Systèmes d'Information

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