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How many subscriptions can redis support? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

Redis is an open source in-memory database that stores data in the form of key-value pairs. Because the data is stored in memory, Redis is very fast, but every time you restart the Redis service, the data will be lost. Therefore, Redis also provides a persistent storage mechanism to save the data in a file in a certain form. Each time you restart, you can automatically load the data from the file into memory.

The architecture of Redis consists of two parts: Redis Client and Redis Server. The Redis client is responsible for sending requests to the server and receiving responses from the server. The server is responsible for processing client requests, such as storing data, modifying data, and so on.

Redis is commonly used as a database, cache, and messaging system.

Redis publish and subscribe

Redis provides publish and subscribe function, which can be used for message transmission. The publish and subscribe mechanism of Redis consists of three parts, publisher, subscriber and Channel.

Both publishers and subscribers are Redis clients, while Channel is the Redis server. The publisher sends a message to a channel, and subscribers to that channel can receive the message. This publishing and subscribing mechanism of Redis is similar to topic-based publishing and subscribing, and Channel is equivalent to topics.

How many subscriptions can redis support?

Because Redis is memory-based, the number of Redisclient depends on the size of physical memory and is not fixed.

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