Summary of Redis

Redis origin

In 2008, Merzia, an Italian start-up company, launched LLOOGG, a real-time website statistics system based on MySQL. Soon, The founder of the company, Sanfilippo, was disappointed with the performance of MySQL, so he decided to customize a database for LLOOGG himself, and completed the development in 2009. The database is Redis.

What is a Redis

Redis (Remote Dictionary Server) is an open source, C-language, network-enabled, memory-based and persistent key-value database with multiple language apis.

Why is Redis so fast

  1. Completely memory based, the vast majority of requests are pure memory operations, very fast

  2. The data structure design is very simple and practical.

  3. The use of single thread, avoid unnecessary thread context switch, do not need to consider lock release lock operations.

  4. IO multiplexing model is adopted to avoid I/O blocking

The installation of Redis

Under Windows installation

Download: github.com/MicrosoftAr… Redis supports 32 and 64 bits. This depends on your platform.

Just unzip it and double-click redis-server.exe

The following page shows that our Redis has started successfully

Under Linux installation

I use Centos 7 here, and the Redis series will demonstrate Redis based on Centos 7 or docker environment on Centos 7

Wget https://download.redis.io/releases/redis-6.2.4.tar.gz tar - ZXVF redis - 6.2.4. Tar. Gz CD redis - 6.2.4. Tar. GzCopy the code

You’ll see something like this, with a MakeFile that needs to be compiled using GCC. If you don’t already have GCC, run the following command

Yum install GCC make CD redis-6.2.4Copy the code

Entering the Redis directory gives you an executable redis-server

Run the./redis-server command to start

If you see the following prompt, you have successfully booted. Congratulations on successfully installing Redis. Let’s start playing with it later