Configure caching

Commerce enables you to configure alternatives to the default file system caching. This guide discusses some of those alternatives; namely,

• Set up the following cache mechanisms in the Commerce configuration:

  • Database
  • Redis
  • File system (default): No configuration is necessary to use default file system caching.

• Set up the Varnish without modifying the Commerce configuration.

Caching terminology

Commerce uses the following caching terminology:

• Frontend—Similar to an interface or gateway to cache storage, implemented by Magento\Framework\Cache\Frontend.

• Cache types—Can be one of the types provided with Commerce or you can create your own.

• Backend—Specifies details about cache storage, implemented by Magento\Framework\Cache\Backend

• Two-level backend—Stores cache records in two backends: a faster one and a slower one.

  INFO

  Two-level backend cache configuration is beyond the scope of this guide.

Configuration options

• Modifying the provided default cache frontend—

  You modify only the <magento_root>/app/etc/di.xml file, the Commerce application’s global dependency injection configuration.

• Configuring your own custom cache frontend—

  You modify only the <magento_root>/app/etc/env.php file because it overrides the equivalent configuration in the di.xml file.