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This article is about what redis refers to. The editor thought it was very practical, so I shared it with you as a reference. Let's follow the editor and have a look.

What is redis?

The official profile explains: Redis is an open source project based on BSD, a storage system that keeps structured data in memory, and you can use it as database, cache and messaging middleware.

Both strings,lists,hashes,sets,sorted sets,bitmaps,hyperloglogs and geospatial indexes data types are supported. It also has built-in copy, lua script, LRU, transaction and other functions, through redis sentinel to achieve high availability, through redis cluster to achieve automatic slicing. And transactions, publish / subscribe, automatic failover, and so on.

In short, redis is a key-value storage system. Includes string (string), list (linked list), set (collection), zset (sorted set-ordered set), and hash (hash type).

● redis provides five data types: string,hash,list,set and zset (sorted set).

● redis uses two file formats: full data and incremental requests.

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