Redis — What and Why?

Redis — What and Why?

According to Redis official doc, Redis is an open-source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams.

What is Redis?

According to Redis official doc, Redis is an open-source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams.

In short, Redis is a tool in the In-Memory Databases category of a tech stack.

Why Redis?

It supports caching. Caching is the process of storing some data in Cache. Cache *is a temporary storage component area where the temporary data is stored so that in the future, data can be served faster. For that case, *Redis is used.

Redis supports most leading programming languages and protocols, including Python, Java, PHP, Perl, Go, Ruby, C/C#/C++, JavaScript, Node.js, and many more

Who uses Redis?

Companies: 5000+ companies reportedly use Redis in their tech stacks, including Snapchat, Twitter, Slack, Uber, Airbnb, and Pinterest.

Developers: Tons of developers on StackShare have stated that they use Redis.

PROs of Redis:

  1. It’s super fast. Faster than any other cashing out there.
  2. Due to easy setup, Redis is Simple and easy to use.
  3. Redis has flexible data structures, it supports almost all data structures.
  4. Redis allows storing key and value pairs as large as 512 MB.
  5. Redis uses its own hashing mechanism called Redis Hashing.
  6. Zero downtime or performance impact while scaling up or down.
  7. Last and probably the very obvious point, it is open source and stable

There are many more pros of Redis. going deep is very hard at this time.

development redis caching database programming

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