Configure caching

Magento 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 Magento configuration:

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

• Set up the Varnish without modifying the Magento configuration.

Magento 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 Magento 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.

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

This topic discusses the following options for configuring caching:

• Modifying the provided default cache frontend, which means you modify only <your Magento install dir>/app/etc/di.xml (the Magento application’s global dependency injection configuration)
• Configuring your own custom cache frontend, which means you modify only <your Magento install dir>/app/etc/env.php because it overrides the equivalent configuration in di.xml