I got some problems restarting Apache with 2000 virtual hosts.
I use Apache 2.2.22 + PHP 5.4.6 on CentOS 5.8 64-bit.
When I try to restart it displays this:
/etc/init.d/httpd restart
Stopping httpd: [FAILED]
Starting httpd: (98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
[FAILED]
When I do killall -9 httpd
it ok then for some time and then it happens again :/