too many apache open processes

As a beginner with ISPconfig I encountered an odd behavior on a server I setup. This server has 2GB RAM and time and again apache will time out loading a web page.
When I grepped httpd I found that too many apache processes are running. After I restart httpd, apache starts up with 10 processes and works like a charm.
I have run apache since 2001 as a standalone and never encountered such a scenario.

Please I need help to resolve this problem.
Thank you.

Chume

 

Thank you for the quick response Till.
I installed version 3.0.3

 

The only entry in the apache error log is below:

Thank you Till

 

Could the ProcessLifeTime of 7200 in each domain vhost configuration lead to this this kind of issue?

 

After searching the Internet and tweaking several of the apache conf files, one solution seems to have helped so far.

Changing the value of "DefaultMinClassProcessCount" to 0 terminates the lingering apache processes.

Thank you

 

My question is how to force ISPconfig to set DefaultMinClassProcessCount 3 to 0 when a vhost conf file is created.

Thank you

 

Thank you so much Till.
I modified the vhost variable on vhost.conf.master file.
After manually changing the vhost variables yesterday, the server is still holding up today.