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Editor to share with you whether redis is an in-memory database, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

All the data in redis is stored in memory, which is an in-memory database. It is an open source, high-performance, C language development, key-value pair (key-value) storage data NOSQL database.

Main features of redis

1. Advanced data structure

Provide five possible data types for values

Strings, lists, collections, hashes and ordered collections. Provides operations unique to these data types and has a well-documented time complexity (Big O notation).

2. High performance

Because of its memory nature, project maintainers keep complexity to a minimum and an event-based programming model, and Redis has excellent performance in read and write operations.

3. Lightweight without dependencies

Written in ANSI C with no external dependencies. Applies to all POSIX environments. Windows is not officially supported, but Microsoft provides an experimental version.

4. High availability

Built-in support for asynchronous, non-blocking, master / slave replication to ensure high availability of data. There is currently a high availability solution called Redis Sentinel that is currently available, but is still considered work in progress.

Redis application scenario

1. Used for caching (ehcache/memcached)-all data in redis is stored in memory (in-memory database)

2. It can replace the traditional database in some specific application scenarios, such as the application of social classes.

3. In some large systems, skillfully implement some specific functions: session sharing, shopping cart

As long as you have a rich imagination, redis can be used to give you unlimited surprises. .

The above is whether redis can be regarded as all the contents of the in-memory database, thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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