What is Redis Cache and how it helps Magento?

What is Redis Cache and how it helps Magento?

Redis is an in-memory data structure store, used as a distributed, in-memory key-value database, cache and message broker, with optional durability. It supports different kinds of abstract data structures, such as strings, lists, maps, sets, sorted sets, HyperLogLogs, bitmaps, streams, and spatial indices.

In simple language:

Redis (remote Dictionary Server) is a virtual memory to store the cached copies of the content. It works with databases and saves a copy of the content. When a user clicks a link, the browser requests the necessary content (image, text, code) to open that page.

However, sending and receiving data takes time, as the original database is located far away. Redis - a Virtual RAM receive the read the request and send the content on behalf of webs servers. It is quick. Hence, the page loads fast, making the browsing experience smooth.

Redis is adopted by many high website traffic, like Pinterest, Twitter, Craigslist etc. With Breeze, you can enable the Redis from the dashboard.

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