- redis 5.0.5
- docker-compose
docker-compose up -d
通过docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' node-80可以查看各个节点在容器内网的ip，
下面的命令必须使用ip而非容器名称。
docker exec -it node-80 redis-cli -p 6380 --cluster create {node-80 ip}:6380 {node-81 ip}:6381 {node-82 ip}:6382 {node-83 ip}:6383 {node-84 ip}:6384 {node-85 ip}:6385 --cluster-replicas 1
实际执行命令和结果
]$ docker exec -it node-80 redis-cli -p 6380 --cluster create 172.20.0.5:6380 172.20.0.6:6381 172.20.0.3:6382 172.20.0.7:6383 172.20.0.2:6384 172.20.0.4:6385 --cluster-replicas 1
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 172.20.0.2:6384 to 172.20.0.5:6380
Adding replica 172.20.0.4:6385 to 172.20.0.6:6381
Adding replica 172.20.0.7:6383 to 172.20.0.3:6382
M: 7c4a2ea4ba9db0da303b10c0d6ab7769b3ba8520 172.20.0.5:6380
slots:[0-5460] (5461 slots) master
M: b53ed8660c07dad30b7db9b7a3023371ba38d68d 172.20.0.6:6381
slots:[5461-10922] (5462 slots) master
M: 3fbfc55535729b865c74f723d493bc91cb45cb0e 172.20.0.3:6382
slots:[10923-16383] (5461 slots) master
S: be5ecff75d42da27a6d7ad5e410f22f5a472d709 172.20.0.7:6383
replicates 3fbfc55535729b865c74f723d493bc91cb45cb0e
S: acbfdf1eb172a0f86876ad9ede1b96f2428f109d 172.20.0.2:6384
replicates 7c4a2ea4ba9db0da303b10c0d6ab7769b3ba8520
S: 4209c5b926e354b127a809abb59fb4981ed1abbb 172.20.0.4:6385
replicates b53ed8660c07dad30b7db9b7a3023371ba38d68d
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
......
>>> Performing Cluster Check (using node 172.20.0.5:6380)
M: 7c4a2ea4ba9db0da303b10c0d6ab7769b3ba8520 172.20.0.5:6380
slots:[0-5460] (5461 slots) master
1 additional replica(s)
S: acbfdf1eb172a0f86876ad9ede1b96f2428f109d 172.20.0.2:6384
slots: (0 slots) slave
replicates 7c4a2ea4ba9db0da303b10c0d6ab7769b3ba8520
M: 3fbfc55535729b865c74f723d493bc91cb45cb0e 172.20.0.3:6382
slots:[10923-16383] (5461 slots) master
1 additional replica(s)
M: b53ed8660c07dad30b7db9b7a3023371ba38d68d 172.20.0.6:6381
slots:[5461-10922] (5462 slots) master
1 additional replica(s)
S: 4209c5b926e354b127a809abb59fb4981ed1abbb 172.20.0.4:6385
slots: (0 slots) slave
replicates b53ed8660c07dad30b7db9b7a3023371ba38d68d
S: be5ecff75d42da27a6d7ad5e410f22f5a472d709 172.20.0.7:6383
slots: (0 slots) slave
replicates 3fbfc55535729b865c74f723d493bc91cb45cb0e
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
如果想了解细节如握手、主从等可以参考docker-compose搭建redis集群及可用性实践