Tunning Apache but setting not found

niraj.vara · 01-23-2015, 06:31 AM

Hi

I have centos 7 and apache version is httpd-2.4.6 I want to tuning my apache for that I want to change the following parameters
But when I opened the httpd.conf not found any default configuration like below. Please guide where I found that Prefork.c settings in Centos 7

I have copied the below setting from the centos 6 system.

<IfModule prefork.c>
StartServers 16
MinSpareServers 10
MaxSpareServers 40
ServerLimit 256
MaxClients 256
MaxRequestsPerChild 4000
</IfModule>

bathory · 01-23-2015, 04:37 PM

Hi,

In newer Centos-7 and apache 2.4.x, the mpm module used is defined in /etc/httpd/conf.modules.d/00-mpm.conf
So you can put your settings wherever you want, e.g. in /etc/httpd/conf/httpd.conf (like before), in /etc/httpd/conf.modules.d/00-mpm.conf, or create a new conf file /etc/httpd/conf.d/prefork.conf

HTH

niraj.vara · 01-23-2015, 07:04 PM

Hi

That's true but there should be default setting also ? So what is default setting?

bathory · 01-24-2015, 01:56 AM

Quote:

Originally Posted by niraj.vara

Hi

That's true but there should be default setting also ? So what is default setting?

From the httpd-mpm.conf file, that comes with 2.4.x source, defaults for each module are:

Code:

<IfModule mpm_prefork_module>
    StartServers             5
    MinSpareServers          5
    MaxSpareServers         10
    MaxRequestWorkers      250
    MaxConnectionsPerChild   0
</IfModule>
<IfModule mpm_worker_module>
    StartServers             3
    MinSpareThreads         75
    MaxSpareThreads        250
    ThreadsPerChild         25
    MaxRequestWorkers      400
    MaxConnectionsPerChild   0
</IfModule>
<IfModule mpm_event_module>
    StartServers             3
    MinSpareThreads         75
    MaxSpareThreads        250
    ThreadsPerChild         25
    MaxRequestWorkers      400
    MaxConnectionsPerChild   0
</IfModule>

Read more for each module here and see the default values here