monitoring apache with multiple processes?

[Josh Sharpe]

I'm not sure how to properly set up monit to watch multiple apache proceses.  I've looked at the examples and they all seem to point to a single PID file...

check process apache 
    with pidfile "/usr/local/apache/logs/httpd.pid"

It's here on my distro:

$ cat /var/run/apache2.pid 

32281

But Apache has more than just one process:

$ ps aux|grep apache
www-data  6843  0.0  1.1 319016  2812 ?        Sl   15:46   0:00 /usr/sbin/apache2 -k start
root     32281  0.0  0.0  97316   132 ?        Ss   Aug10   0:04 /usr/sbin/apache2 -k start
www-data 32282  0.0  0.0  96544     4 ?        S    Aug10   0:00 /usr/sbin/apache2 -k start
www-data 32298  0.0  1.0 385112  2612 ?        Sl   Aug10   0:01 /usr/sbin/apache2 -k start

...and none of those other processes have their own PID.  Is it sufficient that monit is only watching one of them?  What happens if on of the other ones starts chewing up CPU/memory?

Thanks

-Josh