What is caching in Drupal?
The application-level caching in Drupal ensures that the cached pages are separately stored from the site content (which goes into the database). You can’t set this up, except for guiding Drupal where to save cached pages explicitly.
Where is Drupal cache stored?
Drupal 8 or higher provides an Internal Page Cache module that is recommended for small to medium-sized websites. This core module, which is enabled by default, caches pages for anonymous users. It can be found at core/modules/page_cache. This feature improves performance because it speeds up the site.
What is cache Drupal 8?
In Drupal 8, Cache API is used to store data that takes a long time to compute. Caching can either be permanent or valid only for a certain timespan, and the cache can contain any type of data.
What are Drupal cache tags?
Cache tags provide a declarative way to track which cache items depend on some data managed by Drupal. This is essential for a content management system/framework like Drupal because the same content can be reused in many ways.
What is Varnish Cache Drupal 8?
Varnish Cache is a web application accelerator also known as a caching HTTP reverse proxy. Varnish is used on thousands of Drupal sites to speed up page load performance by a factor of 10-1000x, and it can be used with cache tags to make cache invalidation easy.
What is cache bins?
During the processing of an HTTP request, the information from different sources can be stored in different bins. These cache bins can then each be stored in different, configurable backends. A backend is a storage mechanism: a SQL database, or Memcache, or even files on disk.
What are the caching types in Microservices?
There are two kinds of caches based on the availability of data in the cache: pre-loaded cache and lazy-loaded cache. While in the former case data in the cache is populated ahead of the start of a service, in the latter case the cache is warmed as and when data is requested for.
What is cache context?
Cache contexts provide a declarative way to create context-dependent variations of something that needs to be cached. By making it declarative, code that creates caches becomes easier to read, and the same logic doesn’t need to be repeated in every place where the same context variations are necessary.
What is a cache tag?
A cache tag is a string. Cache tags are passed around in sets (order doesn’t matter) of strings, so they are typehinted to string[] . They’re sets because a single cache item can depend on (be invalidated by) many cache tags.
What is Cache Drupal 8?