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Asked: 2011-08-25 08:02:44 +0800 CST

How to I track how many php-cgi processes are in use

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I'm running apache 2.2 with PHP 5.2 in FastCGI mode with mod_fcgid. The platform is RedHat Enterprise Linux 5.5 x86_64. I have my minimum and maximum fastcgi slaves set to 35. How do I track how many php-cgi processes are busy at a certain point in time? I want to see if I'm running out of php-cgi processes and need to increase the number of processes running. I can use "ps" to see how many processes are running, but not how many are busy. How can I see if Apache is blocking on a free php-cgi process?

php apache-2.2 fastcgi performance-monitoring mod-fcgid

1 Answers

  1. Best Answer

    You can parse it from mod_status page: 

    busy_workers=`lynx -dump http://domain.com/server-status?auto | awk '/BusyWorkers/ { print $2 }'`
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