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This article shows you how to carry out redis cluster practice, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

1. Start 3 redis instances without setting slave nodes

2. Delete the original nodes.conf, otherwise redis cannot be started

3. Method 1:redis-trib create ip:port

Method 2:cluster meet ip:port

4. If redis sets a password, redis-trib cannot create successfully. The password must be removed first.

5. When the cluster of 3 nodes is successful

5.1 first hang up one of the nodes, the cluster will cluster_state:fail, and then put the nodes up again, the cluster will be normal again.

5.2. each master node can be assigned a slave node, so if a master node dies, the slave node can

Top it up to ensure that the cluster is still available

6 、

6.1 add a node to the cluster redis-trib (master or salve). If you do not configure the default new node, the new node is the master node.

The newly added node does not assign slot, but assigns slot to the node (src/redis-trib.rb reshard 192.168.135.130 src/redis-trib.rb reshard 7003)

6.2 add a slave node, slave cannot assign slot

7. Hang up the master node (which contains a slave node), and the slave node will be on top.

The above content is how to practice redis cluster. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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