Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you the characteristics of the redis database. The article is rich in content and analyzes and narrates it from a professional point of view. I hope you can get something after reading this article.

Redis is an in-memory cache database. Redis full name: Remote Dictionary Server (remote data Service), written in C language, Redis is a key-value storage system (key storage system), supporting a wide range of data types, such as: String, list, set, zset, hash.

Many languages support Redis, because Redis exchanges data quickly and is often used in the server to store some data that needs to be fetched frequently, saving memory overhead and greatly improving the speed.

Store some hot data in Redis and access it directly when you want to use it, which greatly improves the speed and saves the cost of the server.

1. Session caching (most commonly used)

2. Message queuing (payment)

3. Activity ranking or counting

4. Publish and subscribe to messages (message notification)

5. List of goods and comments

Characteristics of Redis

Redis uses memory as the data storage medium, so it is very efficient to read and write data.

Redis is different from memcache in that the data stored in Redis is persistent, power is off or restarted, and the data is not lost.

Redis storage is divided into memory storage, disk storage and log files.

Redis can reload data from disk into memory or configure it through a configuration file, so redis can be persisted.

Redis supports master-slave mode, and clusters can be configured to support large-scale projects.

These are the characteristics of the redis database shared by the editor. If you happen to have similar doubts, you might as well refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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