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.../bin/php-cgi => how to "digg" deeper and understand what's happening in those process ?

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CONTEXT : I have many php scripts executing live...


pgrep -ia php

(to get details of the process containing php...) option -ia show the command...


112233 /opt/cpanel/ea-php80/root/usr/bin/php-cgi
223355 /opt/cpanel/ea-php80/root/usr/bin/php /home/..some.php

The php processes that shows the executing file are ..../bin/php
The php processes that don't show the command have ..../bin/php-cgi `/opt/cpanel/ea-php80/root/usr/bin/php-cgi` => How can I digg deeper to understand what php is doing in those processes ? they run for long time, can I kill them without causing problems ? what is they comes back, how can I pinpoint if there is a bad line of code executing ?? (note : I checked error_log file => no error are being reported) but thoses php-cgi tends to come back.... why ?


pidstat -p 112233
Linux 4.18.0-305.19.1.el8_4.x86_64 (host.example.com) 2021-10-14 _x86_64_ (8 CPU) 05:08:53 PM UID PID %usr %system %guest %wait %CPU CPU Command 05:08:53 PM 1001 1234277 0.00 0.00 0.00 0.00 0.00 6 php-cgi


pstree -aps 112233 
	--deserialize 17 
		└─httpd,3515834 -k start 
			└─httpd,1233812 -k start 


lsof -p 1234277
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME php-cgi 1234277 stubfeed cwd DIR 252,1 32 62973745 /home/user/public_html/.... 
php-cgi 1234277 stubfeed rtd DIR 252,1 4096 128 / 
php-cgi 1234277 stubfeed txt REG 252,1 6387136 138429576 /opt/cpanel/ea-php80/root/usr/bin/php-cgi 
php-cgi 1234277 stubfeed DEL REG 0,1 110106200 /dev/zero php-cgi 1234277 user mem REG 252,1 315112 578898832 /opt/cpanel/ea-php80/root/usr/lib64/php/modules/mailparse.so 
php-cgi 1234277 user mem


Edited by Jintor
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digging on the web I found this

ps eax |grep php |grep -v grep|awk '{print $1 $8 $15 $19}'

it shows PID - REDIRECT_SCRIPT_URL= ..... usefull stuff to know at least what php "could" have a bad infinite loop on the code....

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