How To Prevent PHP-FPM From Consuming Too Much RAM in Linux

How To Prevent PHP-FPM From Consuming Too Much RAM in Linux

How To Prevent PHP-FPM From Consuming Too Much RAM in Linux. We will show how to prevent PHP-FPM from consuming too much or all your system memory (RAM) in Linux. Reduce PHP-FPM Memory Usage. To reduce PHP-FPM's memory consumption in the pool configuration file is located at /etc/php-fpm.

If you have deployed a LEMP (LinuxNGINXMySQL/MariaDB, and PHP) stack, then you are probably using FastCGI proxying within NGINX (as an HTTP server), for PHP processing. PHP-FPM (an acronym of FastCGI Process Manager) is a widely-used and high-performance alternative PHP FastCGI implementation.

Here are the useful guides on setting up LEMP Stack in Linux.

  • How to Install LEMP Stack with PhpMyAdmin in Ubuntu 20.04
  • How to Install LEMP Server on CentOS 8
  • How to Install LEMP on Debian 10 Server

Recently, all our PHP websites on one of our LEMP web servers became slow and eventually stopped responding on logging into the server. we discovered that the system was running low on RAM: PHP-FPM had consumed most of the RAM, as indicated in the following screenshot ( glances – system monitoring tool).

$ glances

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