【linux】linux在Docker里面安装redis集群搭建详细步骤

末蓝、 2024-04-01 18:21 35阅读 0赞

## 搭建3主3从redis集群 ##

#### 创建六个redis容器 ####

[root@localhost tomcatData]# docker run -d --name redis-node-1 --net host --privileged=true -v /redis/redis-node-1:/data redis --cluster-enabled yes --appendonly yes --port 6379
    7f597842ac768d5d25124f560a1fd07488b29c44b2d7bf35560701ad52157aa6
    [root@localhost tomcatData]# docker run -d --name redis-node-2 --net host --privileged=true -v /redis/redis-node-2:/data redis --cluster-enabled yes --appendonly yes --port 6380
    72dbd4eef385a6dd521b8167619542b7b75d049dc306ef33c4478537f5ee8153
    [root@localhost tomcatData]# docker run -d --name redis-node-3 --net host --privileged=true -v /redis/redis-node-3:/data redis --cluster-enabled yes --appendonly yes --port 6381
    b385ca96ea0d29ad7d5dda0f1ab69d2d359e6009587d83500f2c586ef656b319
    [root@localhost tomcatData]# docker run -d --name redis-node-4 --net host --privileged=true -v /redis/redis-node-4:/data redis --cluster-enabled yes --appendonly yes --port 6382
    808b5e0c9ddb7736e0855644b917da05ad0ec307a4b1eb39b967ccb3edff1ed5
    [root@localhost tomcatData]# docker run -d --name redis-node-5 --net host --privileged=true -v /redis/redis-node-5:/data redis --cluster-enabled yes --appendonly yes --port 6383
    9a7156a41bc4abe6edb0f45354dc1aa1a812e2c8a667ea53036f66690317ba51
    [root@localhost tomcatData]# docker run -d --name redis-node-6 --net host --privileged=true -v /redis/redis-node-6:/data redis --cluster-enabled yes --appendonly yes --port 6384
    8016db0a503c2563fe06433d347191c84388d39f7d4cefec069e1e2bfe8ca07f

### 查看docker容器 ###

docker ps -a

CONTAINER ID   IMAGE      COMMAND                  CREATED         STATUS                     PORTS                                       NAMES
    54734fb05ac1   redis      "docker-entrypoint.s…"   2 minutes ago   Up 2 minutes                                                           redis-node-6
    a9830d1571ff   redis      "docker-entrypoint.s…"   2 minutes ago   Up 2 minutes                                                           redis-node-5
    111f4e7b1888   redis      "docker-entrypoint.s…"   2 minutes ago   Up 2 minutes                                                           redis-node-4
    304aee9902f3   redis      "docker-entrypoint.s…"   3 minutes ago   Up 3 minutes                                                           redis-node-3
    4b58839a75fe   redis      "docker-entrypoint.s…"   3 minutes ago   Up 3 minutes                                                           redis-node-2
    615e92e7c167   redis      "docker-entrypoint.s…"   4 minutes ago   Exited (1) 4 minutes ago                                               redis-node-1
    04ba18605068   redis      "docker-entrypoint.s…"   13 hours ago    Up 13 hours                0.0.0.0:6379->6379/tcp, :::6379->6379/tcp   myredis
    983cab77b3f3   mysql      "docker-entrypoint.s…"   3 days ago      Exited (0) 13 hours ago                                                mysql3131
    dbc4fa32de95   registry   "/entrypoint.sh /etc…"   3 days ago      Created                                                                distracted_knuth
    96afa0e2bb9c   registry   "/entrypoint.sh /etc…"   3 days ago      Created                                                                xenodochial_babbage

### 进入节点1，构建6台节点的集群关系 ###

命令格式：**`--cluster-replicas 1 表示为每个master创建一个slave节点`**

redis-cli --cluster create 192.168.216.130:6378 192.168.216.130:6380 192.168.216.130:6381 192.168.216.130:6382 192.168.216.130:6383 192.168.216.130:6384 --cluster-replicas 1

root@localhost:/data# redis-cli --cluster create 192.168.216.130:6378 192.168.216.130:6380 192.168.216.130:6381 192.168.216.130:6382 192.168.216.130:6383 192.168.216.130:6384 --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 192.168.216.130:6383 to 192.168.216.130:6378
    Adding replica 192.168.216.130:6384 to 192.168.216.130:6380
    Adding replica 192.168.216.130:6382 to 192.168.216.130:6381
    >>> Trying to optimize slaves allocation for anti-affinity
    [WARNING] Some slaves are in the same host as their master
    M: ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab 192.168.216.130:6378
       slots:[0-5460] (5461 slots) master
    M: db7c89c11e63efe5293508f2a7a5cd39316a4efc 192.168.216.130:6380
       slots:[5461-10922] (5462 slots) master
    M: affd3d49af6e0a650e0d7990b100f37da0adb9d3 192.168.216.130:6381
       slots:[10923-16383] (5461 slots) master
    S: a4687fbc50556343b1f71d2179a57249415ab00a 192.168.216.130:6382
       replicates db7c89c11e63efe5293508f2a7a5cd39316a4efc
    S: 3967b0ec029eeb11d7a2549dad21e0697fc23e7a 192.168.216.130:6383
       replicates affd3d49af6e0a650e0d7990b100f37da0adb9d3
    S: 9e34bb0683ca49ae6fd680888c1c405261553d81 192.168.216.130:6384
       replicates ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab
    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 192.168.216.130:6378)
    M: ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab 192.168.216.130:6378
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    M: db7c89c11e63efe5293508f2a7a5cd39316a4efc 192.168.216.130:6380
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: a4687fbc50556343b1f71d2179a57249415ab00a 192.168.216.130:6382
       slots: (0 slots) slave
       replicates db7c89c11e63efe5293508f2a7a5cd39316a4efc
    S: 3967b0ec029eeb11d7a2549dad21e0697fc23e7a 192.168.216.130:6383
       slots: (0 slots) slave
       replicates affd3d49af6e0a650e0d7990b100f37da0adb9d3
    M: affd3d49af6e0a650e0d7990b100f37da0adb9d3 192.168.216.130:6381
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    S: 9e34bb0683ca49ae6fd680888c1c405261553d81 192.168.216.130:6384
       slots: (0 slots) slave
       replicates ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

### 查看主从关系 ###

命令格式：**`redis-cli --cluster check 【本台redis自己的IP】:【本台redis自己的端口】`**

redis-cli --cluster check 192.168.216.130:6378

root@localhost:/data#  redis-cli --cluster check 192.168.216.130:6378
    192.168.216.130:6378 (ec8c48e4...) -> 0 keys | 5461 slots | 1 slaves.
    192.168.216.130:6380 (db7c89c1...) -> 0 keys | 5462 slots | 1 slaves.
    192.168.216.130:6381 (affd3d49...) -> 0 keys | 5461 slots | 1 slaves.
    [OK] 0 keys in 3 masters.
    0.00 keys per slot on average.
    >>> Performing Cluster Check (using node 192.168.216.130:6378)
    M: ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab 192.168.216.130:6378
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    M: db7c89c11e63efe5293508f2a7a5cd39316a4efc 192.168.216.130:6380
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: a4687fbc50556343b1f71d2179a57249415ab00a 192.168.216.130:6382
       slots: (0 slots) slave
       replicates db7c89c11e63efe5293508f2a7a5cd39316a4efc
    S: 3967b0ec029eeb11d7a2549dad21e0697fc23e7a 192.168.216.130:6383
       slots: (0 slots) slave
       replicates affd3d49af6e0a650e0d7990b100f37da0adb9d3
    M: affd3d49af6e0a650e0d7990b100f37da0adb9d3 192.168.216.130:6381
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    S: 9e34bb0683ca49ae6fd680888c1c405261553d81 192.168.216.130:6384
       slots: (0 slots) slave
       replicates ec8c48e4fa51f203c6e0bc5956fb575b9f7b84ab
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

###  **数据读写测试** ###

**加参数 -c ，防止路由失效**

root@localhost:/data# redis-cli -p 6379 -c
    127.0.0.1:6379> get name
    -> Redirected to slot [5798] located at 192.168.216.130:6380
    "zhangsan"
    192.168.216.130:6380>