What should I do if php fpm stops and restarts?

Solution to the problem that php fpm has stopped: First check the master process number of "php-fpm"; then use the command "ill -USR2 42891" to restart "php-fpm".

php-fpm start, restart, terminate operation

Start php-fpm:

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

php php-fpm after 5.3.3 no longer supports the /usr/local/php/sbin/php-fpm (start|stop|reload) and other commands that php-fpm had before, so don’t Looking at this old-fashioned command, you need to use signal control:

The master process can understand the following signals

INT, TERMTerminate immediately

QUITSmooth termination

USR1Reopen log file

USR2Smooth reload of all worker processes and reload configuration and binaries Module

A simple and direct restart method:

Check the master process number of php-fpm first

# ps aux|grep php-fpm root 21891 0.0 0.0 112660 960 pts/3 R+ 16:18 0:00 grep --color=auto php-fpm root 42891 0.0 0.1 182796 1220 ? Ss 4月18 0:19 php-fpm: master process (/usr/local/php/etc/php-fpm.conf) nobody 42892 0.0 0.6 183000 6516 ? S 4月18 0:07 php-fpm: pool www nobody 42893 0.0 0.6 183000 6508 ? S 4月18 0:17 php-fpm: pool www

Restart php-fpm:

kill -USR2 42891

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:

Master above The process can be seen that matster uses the configuration file /usr/local/php/etc/php-fpm.conf. 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

The 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 remove the comment and then kill -USR2 42891 to restart php- fpm, the pid file will be generated. Next time, you can use the following command to restart and close php-fpm:

php-fpm Close:

kill -INT 'cat /usr/local/php/var/run/php-fpm.pid'

php-fpm Restart:

kill -USR2 'cat /usr/local/php/var/run/php-fpm.pid'

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