How to monitor the additional Plesk PHP-FPM services in Watchdog?

Note: The monitoring configuration will be listed in Plesk GUI but it cannot be managed. Notice that the maximum number of items that are listed in Plesk GUI is 25.

1. Connect to the server via SSH

2. Make sure the Watchdog extension component is installed

3. Retrieve the additional Plesk PHP-FPM handlers that are being used:

   # plesk db -Ne “SELECT php_handler_id FROM hosting WHERE php = ‘true'” | sort | uniq
   plesk-php74-fpm

4. Find the PID location for the service:

   # grep pid /opt/plesk/php/7.4/etc/php-fpm.conf
   pid = /run/plesk-php74-fpm.pid

5. Create a Watchdog template file with all the parameters:

   Warning: The bold values have to be updated with the respective Plesk PHP-FPM handler name and PID location

   # cat /usr/local/psa/etc/modules/watchdog/service.tpl.d/plesk-php74-fpm
   check process plesk-php74-fpm
   with pidfile /run/plesk-php74-fpm.pid
   start = “/usr/local/psa/admin/bin/phpinimng –type fpm –start –service-name plesk-php74-fpm“
   stop = “/usr/local/psa/admin/bin/phpinimng –type fpm –stop –service-name plesk-php74-fpm“
   if 5 restarts within 5 cycles then timeout
   every 1 cycles
   mode active

6. Back up Plesk database:

   # plesk db dump psa > psa.backup.sql

7. Create a record in the module_watchdog_service table:

   Warning: The bold values have to be updated with the respective Plesk PHP-FPM handler name

   # plesk db “INSERT INTO psa.module_watchdog_service (name,label,sort_val,mon_status,start_cmd,stop_cmd) VALUES (‘plesk-php74-fpm‘,’Plesk PHP-FPM 7.4‘, 140, ‘monitored’, ‘/usr/local/psa/admin/bin/phpinimng –type fpm –start –service-name plesk-php74-fpm‘,’/usr/local/psa/admin/bin/phpinimng –type fpm –stop –service-name plesk-php74-fpm‘)”

8. Recreate Watchdog configuration with a full restart to apply the changes:

   # /usr/local/psa/admin/bin/modules/watchdog/wd –full-restart

9. Going to Plesk > Extensions > My Extensions > Watchdog, the additional Plesk PHP-FPM service will be listed, but mind that it cannot be disabled or enabled from Plesk GUI:

   

   If it’s required to rollback the changes, run the following comands:

   Warning: The bold value is the parameter used in the article

   # rm /usr/local/psa/etc/modules/watchdog/service.tpl.d/plesk-php74-fpm
   # plesk db “DELETE FROM psa.module_watchdog_service WHERE name = ‘plesk-php74-fpm‘”
   # /usr/local/psa/admin/bin/modules/watchdog/wd –full-restart