Why are there so many apache2 processes?

Question

Apache HTTP Server

>ps ax

1158? Ss 0:36 /usr/sbin/apache2 -k start
7992 ? S 0:00 /usr/sbin/apache2 -k start
8023 ? S 0:00 /usr/sbin/apache2 -k start
8024 ? S 0:00 /usr/sbin/apache2 -k start
8035 ? S 0:00 /usr/sbin/apache2 -k start
8186 ? S 0:00 /usr/sbin/apache2 -k start
8332 ? S 0:00 /usr/sbin/apache2 -k start
10614 ? S 0:00 /usr/sbin/apache2 -k start
11169 ? S 0:00 /usr/sbin/apache2 -k start
11213 ? S 0:00 /usr/sbin/apache2 -k start
11328 ? S 0:00 /usr/sbin/apache2 -k start

Thanks in advance for your reply!

Answer 1

One process is a parent process running as root , the others are child processes running as user www-data .
Try to deal with the settings in the config /etc/apache2/apache2.conf