Switching between PHP-FPM versions makes php-fpm go down and vice versa.

When I switch a site from php5 to php7, PHP 7 goes down and needs to be restarted.
When I switch a site from php7 to php5, PHP 5 goes down and needs to be restarted.

Code:

Oct 09 18:14:46 mx3 systemd[1]: Starting The PHP FastCGI Process Manager...
-- Subject: Unit php5-fpm.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit php5-fpm.service has begun starting up.
Oct 09 18:14:46 mx3 php5-fpm[14189]: [09-Oct-2017 18:14:46] ERROR: An another FPM instance seems to already listen on /var/lib/php5-fpm/web68.sock
Oct 09 18:14:46 mx3 php5-fpm[14189]: [09-Oct-2017 18:14:46] ERROR: FPM initialization failed
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Main process exited, code=exited, status=78/n/a
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Failed to kill control group /lxc/102/system.slice/php5-fpm.service, ignoring: Invalid argument
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Failed to kill control group /lxc/102/system.slice/php5-fpm.service, ignoring: Invalid argument
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Failed to kill control group /lxc/102/system.slice/php5-fpm.service, ignoring: Invalid argument
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Failed to kill control group /lxc/102/system.slice/php5-fpm.service, ignoring: Invalid argument
Oct 09 18:14:46 mx3 systemd[1]: Failed to start The PHP FastCGI Process Manager.
-- Subject: Unit php5-fpm.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit php5-fpm.service has failed.
--
-- The result is failed.
Oct 09 18:14:46 mx3 systemd[1]: php5-fpm.service: Unit entered failed state.

PHP5: /etc/php5/fpm/pool.d/www.conf

Code:

listen=127.0.0.1:9010

PHP7.0: /opt/php-7.0/etc/php-fpm.d/www.conf

Code:

listen=127.0.0.1:8998

PHP7.1: /opt/php-7.1/etc/php-fpm.d/www.conf

Code:

listen=127.0.0.1:8999

I installed using the perfect server apache debian 8 server guide. Then followed the migrations instructions to switch the server to NGINX, then followed the guides to add php-7.1 and repeated the same instructions for PHP7.0

 

@till Ever seen anything like this before?

 

what are your entries for the service(name) to be used to control the process (start/stop) did you specify only the unitname ( php5-fpm ) or have you entered like /etc/init.d/php5-fpm, if so: try php5-fpm ( same & accordingly for other php-fpms )

do you use either mirror or master/slave configuration?

what happens if you stop both php-fpms, remove the mentioned web*.conf and resync that web / switch php-config?

did you know http://www.webalizer.org/ is looking for a new home, preferable close to his home / florida? *hint* - ok sponsored but hey, it's still important

 

Where would I find those entries for the service name?

 

it's german but I'm confident it's recognizeable

 

Try looking that this post: It explains my problem much better:
https://www.howtoforge.com/communit...s-already-in-use-multiple-php-fpm-woes.77685/