Docker安装Redis集群记录

news2024/12/26 22:57:42

redis集群整体的安装效果

备注：本机docker容器的宿主机ip为192.168.0.200，下面的配置全部基于当前IP进行配置；

1 docker镜像下载使用的国内地址

vi /etc/docker/daemon.json

{
    "registry-mirrors": [
        "https://ustc-edu-cn.mirror.aliyuncs.com/",
        "https://ccr.ccs.tencentyun.com/",
        "https://docker.m.daocloud.io/"
    ]
}

2 下载镜像

当前教程使用的是7.2.4，如果需要其他版本redis，可以自行搜索：点击跳转

docker pull redis:7.2.4

3 创建并且启动镜像

创建6台除端口号不一致，其他全部一致的redis容器

docker run -d --name redis-node-1 --net host --privileged=true -v /opt/redis/cluster/redis-node-1:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6381

docker run -d --name redis-node-2 --net host --privileged=true -v /opt/redis/cluster/redis-node-2:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6382

docker run -d --name redis-node-3 --net host --privileged=true -v /opt/redis/cluster/redis-node-3:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6383

docker run -d --name redis-node-4 --net host --privileged=true -v /opt/redis/cluster/redis-node-4:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6384

docker run -d --name redis-node-5 --net host --privileged=true -v /opt/redis/cluster/redis-node-5:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6385

docker run -d --name redis-node-6 --net host --privileged=true -v /opt/redis/cluster/redis-node-6:/opt/redis redis:7.2.4 --cluster-enabled yes --appendonly yes --port 6386

4 6个容器构建集群关系

随便进入一台redis容器，为6个容器构建redis集群关系

进入容器
docker exec -it 容器id bash

构建redis集群关系
redis-cli --cluster create 192.168.0.200:6381 192.168.0.200:6382 192.168.0.200:6383 192.168.0.200:6384 192.168.0.200:6385 192.168.0.200:6386 --cluster-replicas 1

注：

--cluster-replicas 1 : 表示为每个master创建一个slave节点集群操作

5 查看集群与节点

进入容器
docker exec -it 容器id bash

连接redis实例

redis-cli -p 6381

5.1 查看集群信息

cluster info

127.0.0.1:6381> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_ping_sent:1286
cluster_stats_messages_pong_sent:990
cluster_stats_messages_sent:2276
cluster_stats_messages_ping_received:985
cluster_stats_messages_pong_received:1286
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:2276
total_cluster_links_buffer_limit_exceeded:0

5.2 查看集群节点

cluster nodes

127.0.0.1:6381> cluster nodes
77f9016dcb3ca6eb87a639e8547426e9f136ba7a 192.168.0.200:6382@16382 master - 0 1722680065749 2 connected 5461-10922
ca475b5a6ecab558e26d9c9a208b72d646024584 192.168.0.200:6385@16385 slave 77f9016dcb3ca6eb87a639e8547426e9f136ba7a 0 1722680065000 2 connected
6ff5eb220e3154217448c7c3a7e5cb1455bcf7d4 192.168.0.200:6381@16381 myself,master - 0 1722765605000 1 connected 0-5460
fa37a1a0ff2c5346a9fc3b01345148fd2169eaff 192.168.0.200:6386@16386 slave fe1fb4226b1abdd140ced297b5724e96ebb5990f 0 1722680063000 3 connected
fe1fb4226b1abdd140ced297b5724e96ebb5990f 192.168.0.200:6383@16383 master - 0 1722680065000 3 connected 10923-16383
8373031b5a1177071f12e57f2cf09b0bb2189590 192.168.0.200:6384@16384 slave 6ff5eb220e3154217448c7c3a7e5cb1455bcf7d4 0 1722765608514 1 connected
127.0.0.1:6381>