Cobra Forum

Question: PHP-FPM service fails to start on Plesk: An another FPM instance seems to already listen on php-fpm.sock


Applicable to:

• Plesk Obsidian for Linux

Symptoms

1.PHP-FPM service fails to start on Plesk Onyx 17.8.

2.Error in /var/log/plesk-phpXX-fpm/error.log:

ERROR: An another FPM instance seems to already listen on /var/www/vhosts/system/subdomain.example.com/php-fpm.sock
ERROR: An another FPM instance seems to already listen on /var/www/vhosts/system/subdomain.example.com/php-fpm.sock
ERROR: FPM initialization failed
ERROR: FPM initialization failed
3.Subdomain was created via XML API.

4.Non-system PHP handler is assigned to the subdomain mentioned in the error message. But configuration file from system PHP handler presents:

# find /etc /opt -name subdomain.example.com.conf
/etc/httpd/conf/plesk.conf.d/vhosts/subdomain.example.com.conf
/etc/nginx/plesk.conf.d/vhosts/subdomain.example.com.conf
/etc/php-fpm.d/subdomain.example.com.conf

Cause

Incorrect PHP configuration file was generated during subdomain creation via XML API.

Plesk bug PPPM-10022 which will be fixed in future updates.


Resolution

Apply one of the workarounds below:

1.Log in to Plesk server via SSH

2.Remove the excessive configuration file:
# rm -f  /etc/php-fpm.d/subdomain.example.com.conf

OR

1.Log in to Plesk

2.Go to Domains > subdomain.example.com > PHP Settings

3.Switch to FPM by OS vendor and back to the desired PHP version