[ERR] Node xxxxx is not empty. Either the node already knows other nodes (check with CLUSTER NODES)

問題示例：

執行創建redis集羣命令時，

# 我這裏ip都是172.17.0.1是因爲我這裏的redis節點都是docker容器，每個容器都已經映射到了主機172.17.0.1的不同端口
redis-cli --cluster create 172.17.0.1:6391 172.17.0.1:6392 172.17.0.1:6393 172.17.0.1:6394 172.17.0.1:6395 172.17.0.1:6396 --cluster-replicas 1

報錯：

>> Creating cluster
 [ERR] Node 172.17.0.1:6379 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.

解決辦法：

• 1.停止所有redis進程（我集羣節點是 docker-compose 創建的，所以只需要docker-compose down即可）
• 2.將每個節點對應的.aof，.rdb .conf 文件刪除，（注意：啓動配置文件也是.conf後綴，請不要誤刪），具體文件對應位置需要查看每一個redis節點的啓動配置文件的配置項，如我的集羣配置文件：

dbfilename dump-6379.rdb
appendfilename "appendonly_6379.aof"
cluster-config-file "cluster/nodes-6379.conf"

• 3.啓動redis進程（.我集羣節點是 docker-compose 創建的，所以只需要docker-compose -d up即可），並重新創建集羣

redis-cli --cluster create 172.17.0.1:6391 172.17.0.1:6392 172.17.0.1:6393 172.17.0.1:6394 172.17.0.1:6395 172.17.0.1:6396 --cluster-replicas 1

參考文章：

1.
標題：[ERR] Node xxxxx is not empty. Either the node already knows other nodes (check with CLUSTER NODES)
地址：https://cloud.tencent.com/developer/article/1351139
2.
標題：[ERR] Node 172.168.63.202:7001 is not empty. Either the nodealready knows other nodes (check with CLUSTER NODES) or contains some
地址：https://www.cnblogs.com/huxinga/p/6644226.html