How can I change from prefork to worker MPM on CentOS 64bit?
Solution 1:
Edit: /etc/sysconfig/httpd
Uncomment:
HTTPD=/usr/sbin/httpd.worker
Restart, voila!
Solution 2:
CentOS 6x:
modify file: /etc/sysconfig/httpd
HTTPD=/usr/sbin/httpd.worker
CentOS 7x:
$ cat /etc/httpd/conf.modules.d/00-mpm.conf
#LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
LoadModule mpm_worker_module modules/mod_mpm_worker.so
#LoadModule mpm_event_module modules/mod_mpm_event.so
Restart
Solution 3:
Edited: /etc/sysconfig/httpd
And uncommented:
HTTPD=/usr/sbin/httpd.worker
After restarting httpd (service httpd restart) I get the following error:
Stopping httpd: [ OK ]
Starting httpd: httpd.worker: Syntax error on line 222 of /etc/httpd/conf/httpd.conf: Syntax error on line 9 of /etc/httpd/conf.d/php.conf: Cannot load /etc/httpd/modules/libphp5-zts.so into server: /etc/httpd/modules/libphp5-zts.so: cannot open shared object file: No such file or directory
[FAILED]
You might need to install php-zts though.
yum install php-zts
After that no more error messages and httpd is starting normally with module worker active.