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This article will explain in detail how much data can be stored in redis, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Redis is a key-value storage system. Similar to Memcached, it supports relatively more value types, including string (string), list (linked list), set (collection), zset (sorted set-ordered collection), and hash (hash type). These data types support push/pop, add/remove, and take intersection union and difference sets, and richer operations, and these operations are atomic. On this basis, redis supports a variety of different sorting methods. Like memcached, data is cached in memory for efficiency. The difference is that redis will periodically write updated data to disk or modify operations to additional record files, and on this basis to achieve master-slave (master-slave) synchronization.

There is no such indicator. It's not the number of records, it's the actual capacity. So when configuring, you can:

Set the maxmemory option in redis.conf, which tells Redis to reject subsequent write requests after using how much physical memory is used. This parameter can protect your Redis from swap caused by using too much physical memory, and eventually seriously affect performance or even crash.

Officials say that a single case can handle key: 250 million, see link: https://redis.io/topics/faq, here are the exact words:

What is the maximum number of keys a single Redis instance can hold? And what the max number of elements in a Hash, List, Set, Sorted Set?

Redis can handle up to 2 ^ 32 keys, and was tested in practice to handle at least 250 million keys per instance.

Every hash, list, set, and sorted set, can hold 2 ^ 32 elements.

In other words your limit is likely the available memory in your system.

The maximum size of a key or value is 512m.

About how much redis can store data to share here, I hope the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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