Review PHP-FPM error log
PHP-FPM is a web tool used to speed up the performance of a website. Using PHP-FPM on a site with heavy traffic can allow your server to better utilize resources without affecting other sites with less traffic.
Why would I need to review this log?
- Your site is not working as intended.
- One or more pages of your site has an error.
- Your site is slow or just spins and never loads.
Log location
WHM/cPanel:/usr/local/cpanel/logs/php-fpm/error.logPlesk:
/var/log/plesk-php8x-fpm/error.log
How can I review this log?
SSH allows you to access, view and manipulate the full log with tools such as vim or grep.
Example errors found in a PHP-FPM log
Max Children defines the maximum number of PHP-FPM processes that are allowed to spawn.WARNING: [pool user_cpaccount] server reached max_children setting (25), consider raising it
[20-Dec-2021 03:57:35] WARNING: [pool images_domain_com] child 30042 said into stderr: "Mon Dec 20 03:57:35 2021 (30042): Warning Not enough free shared space to allocate 110120 bytes (48616 bytes free)"
[20-Dec-2021 03:59:38] WARNING: [pool domain_com] server reached max_children setting (30), consider raising it
