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This article will explain in detail about the nodes in the Redis cluster. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Redis cluster is a distributed database scheme provided by Redis. The cluster shares data through fragments and provides replication and failover functions.

Node

A Redis cluster is usually made up of multiple nodes. Initially, each node is independent, and they are all in a cluster that contains only their own. When the independent nodes are connected by the CLUSTER MEET command, they form a cluster.

A node is actually a Redis server running in cluster mode. The function it provides is consistent with that of an ordinary Redis server.

Cluster data structure

The data structure of the cluster mainly consists of the following three:

ClusterState-- > clusterNode-- > clusterLink

The three of them are an inclusion relationship, as shown in the following figure:

Each node contains a clusterState structure

So much for sharing the nodes in the Redis cluster. I hope the above content can be helpful to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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