Magento 2.2.x technology stack requirements
Operating systems (Linux x86-64)
A Linux distribution such as RedHat Enterprise Linux (RHEL), CentOS, Ubuntu, Debian, and so on.
Upgrading the Magento applications and extensions you obtain from Magento Marketplaces and other sources can require up to 2GB of RAM. If you are using a system with less than 2GB of RAM, we recommend you create a swap file; otherwise, your upgrade might fail.
Composer (latest stable version)
Composer is required for developers who wish to contribute to the Magento 2 codebase or anyone who wishes to develop Magento extensions.
In addition, you must enable the Apache
mod_rewritemodule enables the server to perform URL rewriting. The
mod_versionmodule provides flexible version checking for different
httpdversions. For more information, see our Apache documentation.
MySQL 5.6, 5.7
Magento is also compatible with MySQL NDB Cluster 7.4.*, MariaDB 10.0, 10.1, 10.2, Percona 5.7, and other binary-compatible MySQL technologies.
Magento only uses MySQL features compatible with MariaDB. MariaDB may not be compatible with all MySQL features, however, so be sure to research compatibility issues before using a feature in your Magento module.
Required PHP extensions
- bc-math (Magento Commerce only for 2.2.0 - 2.2.3. Magento Commerce and Magento Open Source as of 2.2.4.)
- gd, ImageMagick 6.3.7 (or later) or both
We strongly recommend you verify that PHP OPcache is enabled for performance reasons. The OPcache is enabled in many PHP distributions. To verify if it is installed, see our PHP documentation for CentOS or Ubuntu.
If you must install it separately, see the PHP OPcache documentation.
We recommend particular PHP configuration settings, such as
memory_limit, that can avoid common problems when using Magento.
For more information, see Required PHP settings.
- A valid security certificate is required for HTTPS.
- Self-signed SSL certificates are not supported.
Transport Layer Security (TLS) requirement - PayPal and
repo.magento.comboth require TLS 1.1 or later:
Mail Transfer Agent (MTA) or an SMTP server
Magento can use the following technologies:
- Redis version 3.2 (compatible with 2.4+ ) for page caching and session storage
- Varnish version 4.x or 5.0
- memcached latest stable version for session storage with either
memcachedPHP extensions (latest stable version)
Magento Commerce only
Magento Commerce version 2.2.x supports the following Elasticsearch versions:
Magento 2.2.3 uses Elasticsearch PHP client version 5.1. Before version 2.2.3, Magento used PHP client version 2.0.
RabbitMQ 3.5.x (compatible with 2.0 and later)
RabbitMQ can be used to publish messages to queue and to define the consumers that receive the messages asynchronously.
Three master databases
These master databases provide scalability advantages for different functional areas of the Magento application, such as checkout, orders, and all remaining Magento2 application tables.
Optional but recommended:
- php_xdebug2.2.0 or later (development environments only; can have an adverse effect on performance)
There is a known issue with
xdebug that can affect Magento installations or access to the storefront or Magento Admin after installation.
For details, see Known issues that affect installation.
- PHPUnit (as a command-line tool) 6.2.0