One minute to explain several methods of restarting php-fpm in PHP

This article will introduce you to several methods of interpreting PHP to restart php-fpm in one minute, which has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Start php-fpm:

/usr/local/php/sbin/php-fpm

php 5.3.3 or later php-fpm no longer supports commands such as /usr/local/php/sbin/php-fpm (start|stop|reload) that php-fpm previously had, so don’t look at this old-fashioned command anymore, you need to use signal control :

The master process can understand the following signals

INT, TERM Terminate immediately
QUIT Smooth termination
USR1 Reopen the log file
USR2 Smoothly reload all worker processes and reload configuration and binary modules

A simple and direct restart method:

Check the master process number of php-fpm first

# ps aux | grep php-fpm | grep master | grep -v grep
root     13225  0.0  0.0 204820  7508 ?        Ss   09:37   0:01 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
You have new mail in /var/spool/mail/root

Restart php-fpm:

kill -USR2 13225

OK.

The above scheme is generally used when the php-fpm.pid file is not generated. If you want to generate php-fpm.pid, use the following scheme:

You can see the above master process,matster is using the /usr/local/php/etc/php-fpm.conf configuration file, cat /usr/local/php/etc/php-fpm .conf Found:

[global]
; Pid file
; Note: the default prefix is /usr/local/php/var
; Default Value: none
;pid = run/php-fpm.pid

pid file path should be located at

/usr/local/php/var/run/php-fpm.pid

. Since it was commented out, it was not generated. We removed the comment and then killed -USR2 42891 to restart php-fpm. The pid file will be generated. You can use the following command to restart and close php-fpm next time:

php-fpm 关闭：
kill -INT 'cat /usr/local/php/var/run/php-fpm.pid'
php-fpm 重启：
kill -USR2 'cat /usr/local/php/var/run/php-fpm.pid'

Recommended learning: php video tutorial

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