An introduction to redis & why it is so popular

Redis is a NoSQL (Not only SQL) advanced key-value data store. It is also referred to as a data structure server because of its powerful data types, such as Strings, Hashes, Lists, Sets, Sorted Sets, Bitmaps, and HyperLogLogs. By default, Redis saves all data in the memory, therefore read and write operations are very fast. It can also cause data to persist in the disk. Data persistence in Redis can be achieved by creating a binary snapshot of the stored data or a human-readable file with a sequence of all executed commands over time. These are respectively known as snapshotting and journaling.

Additionally, Redis includes configurable key expiration, transactions, and publish/subscribe features. It also provides Lua scripting to extend Redis to create new commands. Combined, these features transform Redis into the Swiss Army knife of data type storage.

About the author

Deven Rathore

I'm Deven Rathore, a multidisciplinary & self-taught designer with 3 years of experience. I'm passionate about technology, music, coffee, traveling and everything visually stimulating. Constantly learning and experiencing new things.

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