Why does PHP-FPM consume too much CPU?

Why does PHP-FPM consume too much CPU?

PHP-FPM can lead to high server load due to many reasons: Too many processes running due to high traffic or attacks. A related service such as MySQL or web server being abused. PHP-FPM configuration is not properly mapped to available server resources.

What is FastCGI FPM?

FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features (mostly) useful for heavy-loaded sites. These features include: ability to start workers with different uid/gid/chroot/environment, listening on different ports and using different php. ini (replaces safe_mode);

What is FPM status?

Description. PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation. PHP-FPM has a feature that allows setting up a status page to view that status of a PHP-FPM pool, configurable using the option pm. status_path. On this server the PHP-FPM Status Page is publicly accessible.

What is FPM for?

PHP-FPM is an efficient method on how to minimize the memory consumption and rise the performance for the websites with heavy traffic. It is significantly faster than traditional CGI-based methods in multi-user PHP environments.

Should I use PHP-FPM?

According to us if you have a heavy and busier website and have low-end server resources and don’t wish to upgrade server then PHP-FPM should be used as it is low resource hogger. If CGI is used then essential web server process might end up in the deadlock situation which may lead to website downtime.

How do I know if FPM is installed?

2 Answers. You could use exec or system and check with ps aux | grep php-fpm if its running.

Should I use PHP or PHP-FPM?

How do I turn off FPM?

If you wish for it to be off, you will toggle the switch to “Off,” which will allow your domains to no longer run on PHP-FPM. Then click the Customize button next to “Currently Installed Packages” and then click “PHP Extensions.” You can uninstall the PHP-FPM extensions for each version of PHP from this page.

Does PHP-FPM use up 100% of your CPU?

It is php-fpm using most of CPU reassures. Using 100% of three cores is not rare. I hadn’t seen that before. There are other sites on the Linode, but it should be the wiki.

What does it mean when the PHP-FPM pool is busy?

This message means that the PHP-FPM pool is very busy and is unable to handle the high traffic with the existing configuration parameters. PHP-FPM can lead to high server load due to many reasons: The first thing server owners tend to do for an immediate fix, is to restart the PHP-FPM service.

How to debug the PHP-FPM service that causes high load?

It is a FastCGI daemon that allows a website to handle high load. But sometimes this service itself causes high load. To debug the issue, the first thing we did is to examine the PHP-FPM error logs, which is available in a location such as ” /var/log/php7.0-fpm.log “.

Where can I find the PHP-FPM configuration file?

In a server with multiple services, all of them are taken into account for the tuning process. The PHP-FPM configuration file will be available at /etc/php-fpm.conf or some other location based on the service path. The contents of the file would look like: