PHP-FPM often appear 502 solutions

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Recently Nginx is often 502, the best way to solve 502 is to restart PHP-FPM.
Manual reboot is still a hassle, and the best thing to do is to throw it into the shell.

Vim restart-php-fpm.sh

#!/bin/sh
service= ' php-fpm '

#if PS ax  grep-v grep  grep $SERVICE >/dev/null
if NETSTAT-ANP  grep 9000 >/dev/null
then
    Echo $SERVICE SERVICE running, everything is fine
else
    Echo $SERVICE is not running
    service php-fpm start
fi

Local virtual machine test a bit, feasible, throw to the server, the results found that 502 did not php-fpm no process, but PHP-FPM zombie.
So there's another option:

Vim restart-php-fpm.sh

#!/bin/bash
my_url=http://www.webyang.net
result= ' curl-i $MY _url  grep http/1.1 '
 
if [N $ Result]; Then
#如果502则会执行这里的内容, casually Add or change
killall-9 php-cgi
service php-fpm Restart
fi

In this case, or manually, if you need to automatically add yourself to the crontab.
chmod 755 restart-php-fpm.sh
Run CRONTAB-E
Set restart-php-fpm.sh to be executed automatically every minute (time can be adjusted on its own request)
*/1 * * * */home/restart-php-fpm.sh
To see if the settings succeeded or failed
Crontab-l

or write a shell dead loop that can be executed in a separate time period.