Apache httpd appear too many times on processes

Dear all experts,
I have a environment with 2 web, 2 apps and 2 db servers. Recently after I have patch the AIX O/S from 5300-11-02 to 5300-12-02, we found that the number of httpd processes increase largely. From originally 4 fix httpd processes become more than 600 processes. And it already resulted in Memory error and we need to reboot servers to reduce the processes.
I suspect it is due to some setting problem instead of patching error. I have no knowledge on httpd proc and would like to know whether any setting to limit the httpd and whether where I can check to look for the problem.
Anyone faced this problem before and get resolved?

pSeries server POWER 5, CPU=1 (1.9GHz) Memory=2GB Paging=4GB OS=5300-12-02

Please assist.

Thanks in advance.

If your question is about a "setting" for Apache, I suggest you go to the Apache site and look at the run-time configurations, which are present in the httpd.conf files located in Apache's "conf" directory.

Here's a link to the Apache 2.2 documentation site:
Apache HTTP Server Version 2.2 Documentation - Apache HTTP Server

Here's a link to the Apache 2.2 run-time configuration directive site:
Directive Index - Apache HTTP Server

HTH,
-tony