[ERR] Node 127.0.0.1:7000 is not empty. Either the node already knows other nodes (check with CLUSTE

创建集群：

./redis-trib.rb  create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005 

报错：

[ERR] Node 127.0.0.1:7000 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.

解决：

删除生成的配置文件nodes.conf，如果不行则说明现在创建的结点包括了旧集群的结点信息，需要删除redis的持久化文件后再重启redis，比如：appendonly.aof、dump.rdb