网站vps无法登陆,东莞市手机网站建设平台,excel导入wordpress,旅游公司网站制作本文介绍自己建立一个redis-cluster集群的实践#xff0c;三主三从#xff0c;使用docker搭建。 其实搭建很简单#xff0c;就是建立6个容器#xff0c;每个容器配置不同的端口号#xff0c;其他的都是一样的。 假设建立6个端口号分别为 5555到5560。 配置文件 port 5…本文介绍自己建立一个redis-cluster集群的实践三主三从使用docker搭建。 其实搭建很简单就是建立6个容器每个容器配置不同的端口号其他的都是一样的。 假设建立6个端口号分别为 5555到5560。 配置文件 port 5555 cluster-enabled yes cluster-config-file nodes.conf cluster-node-timeout 5000 appendonly yes daemonize no bind 0.0.0.0 protected-mode no pidfile /tmp/redis/redis-cluster/55555/redis.pid上面的参数都是必要的。不过如果protected-mode设置为了no,bing可以不加。cluster-enabled是打开了cluster开关允许使用集群。 cluster-config-file会自动生成关于该节点的配置信息。 cluster-node-timeout是非常关键的参数它的值直接影响到了集群通信的效率。看源码就会看到集群节点间的通信都会使用这个值是单向通信超时的最大时间。 OK 配置好了就直接编写docker-compose。就是配置各个service不过下面的教法不准确这时我们并没指定哪个是主哪个是从。主从是redis替我们做的工作。 docker-compose文件 version: 3networks:redis-cluster-net:external:name: redis-cluster-netservices:redis-master-1:image: redis #依赖的基础镜像restart: always #是否遇到异常时自动自动重启container_name: redis-master-1command: [ redis-server, /home/redis/cluster/redis.conf ] #启动命令networks:redis-cluster-net:ipv4_address: 192.168.200.11volumes: #redis数据挂载到宿主机- /tmp/redis/redis-cluster/55555/data:/data- /tmp/redis/redis-cluster/55555/redis.conf:/home/redis/cluster/redis.confports:- 5555:5555 #服务端口- 15555:15555 #集群端口redis-master-2:image: redisrestart: alwayscontainer_name: redis-master-2command: [ redis-server, /home/redis/cluster/redis.conf ]networks:redis-cluster-net:ipv4_address: 192.168.200.12volumes:- /tmp/redis/redis-cluster/55557/data:/data- /tmp/redis/redis-cluster/55557/redis.conf:/home/redis/cluster/redis.confports:- 5557:5557 #服务端口- 15557:15557 #集群端口redis-master-3:image: redisrestart: alwayscontainer_name: redis-master-3command: [ redis-server, /home/redis/cluster/redis.conf ]networks:redis-cluster-net:ipv4_address: 192.168.200.13volumes:- /tmp/redis/redis-cluster/55559/data:/data- /tmp/redis/redis-cluster/55559/redis.conf:/home/redis/cluster/redis.confports:- 5559:5559 #服务端口- 15559:15559 #集群端口redis-slave-1:image: redisrestart: alwayscontainer_name: redis-slave-1command: [ redis-server, /home/redis/cluster/redis.conf ]networks:redis-cluster-net:ipv4_address: 192.168.200.14volumes:- /tmp/redis/redis-cluster/55556/data:/data- /tmp/redis/redis-cluster/55556/redis.conf:/home/redis/cluster/redis.confports:- 5556:5556 #服务端口- 15556:15556 #集群端口redis-slave-2:image: redisrestart: alwayscontainer_name: redis-slave-2command: [ redis-server, /home/redis/cluster/redis.conf ]networks:redis-cluster-net:ipv4_address: 192.168.200.15volumes:- /tmp/redis/redis-cluster/55558/data:/data- /tmp/redis/redis-cluster/55558/redis.conf:/home/redis/cluster/redis.confports:- 5558:5558 #服务端口- 15558:15558 #集群端口redis-slave-3:image: redisrestart: alwayscontainer_name: redis-slave-3command: [ redis-server, /home/redis/cluster/redis.conf ]networks:redis-cluster-net:ipv4_address: 192.168.200.16volumes:- /tmp/redis/redis-cluster/55510/data:/data- /tmp/redis/redis-cluster/55510/redis.conf:/home/redis/cluster/redis.confports:- 5510:5510 #服务端口- 15510:15510 #集群端口 启动docker-compose up -d 容器启动之后6个节点的redis还是完全独立的需要手动建立cluster集群。直接使用redis-cli的命令即可。 /tmp/redis/redis-cluster$ redis-cli --cluster create 10.231.23.240:5555 10.231.23.240:5556 10.231.23.240:5557 10.231.23.240:5558 10.231.23.240:5559 10.231.23.240:5510 --cluster-replicas 1Performing hash slots allocation on 6 nodes... Master[0] - Slots 0 - 5460 Master[1] - Slots 5461 - 10922 Master[2] - Slots 10923 - 16383 Adding replica 10.231.23.240:5559 to 10.231.23.240:5555 Adding replica 10.231.23.240:5510 to 10.231.23.240:5556 Adding replica 10.231.23.240:5558 to 10.231.23.240:5557Trying to optimize slaves allocation for anti-affinity [WARNING] Some slaves are in the same host as their master M: 69cf0edf78f88458535c05446deaad8bce0123eb 10.231.23.240:5555slots:[0-5460] (5461 slots) master M: ef9eaf11a9664a023c2a686186b4d69c44415bb3 10.231.23.240:5556slots:[5461-10922] (5462 slots) master M: 17debd2a9e30af742956428d959d87ad3b2f6fd9 10.231.23.240:5557slots:[10923-16383] (5461 slots) master S: b5983582f3c04ff7639e09b405fb8ef82c6cbb5d 10.231.23.240:5558replicates 69cf0edf78f88458535c05446deaad8bce0123eb S: 326176c22211e64b94697ddc12748e15ffd98402 10.231.23.240:5559replicates ef9eaf11a9664a023c2a686186b4d69c44415bb3 S: 738f0fe576d1433302c967d954fc09a92ccbba46 10.231.23.240:5510replicates 17debd2a9e30af742956428d959d87ad3b2f6fd9 Can I set the above configuration? (type yes to accept): yesNodes configuration updatedAssign a different config epoch to each nodeSending CLUSTER MEET messages to join the cluster Waiting for the cluster to join Performing Cluster Check (using node 10.231.23.240:5555) M: 69cf0edf78f88458535c05446deaad8bce0123eb 10.231.23.240:5555slots:[0-5460] (5461 slots) master1 additional replica(s) S: 738f0fe576d1433302c967d954fc09a92ccbba46 192.168.200.1:5510slots: (0 slots) slavereplicates 17debd2a9e30af742956428d959d87ad3b2f6fd9 S: b5983582f3c04ff7639e09b405fb8ef82c6cbb5d 192.168.200.1:5558slots: (0 slots) slavereplicates 69cf0edf78f88458535c05446deaad8bce0123eb S: 326176c22211e64b94697ddc12748e15ffd98402 192.168.200.1:5559slots: (0 slots) slavereplicates ef9eaf11a9664a023c2a686186b4d69c44415bb3 M: 17debd2a9e30af742956428d959d87ad3b2f6fd9 192.168.200.1:5557slots:[10923-16383] (5461 slots) master1 additional replica(s) M: ef9eaf11a9664a023c2a686186b4d69c44415bb3 192.168.200.1:5556slots:[5461-10922] (5462 slots) master1 additional replica(s) [OK] All nodes agree about slots configuration.Check for open slots...Check slots coverage... [OK] All 16384 slots covered.看上面的信息已经很清晰了建立了三个master并分别指派了slot范围。此外还添加了三个从节点。 集群建立后查看集群信息 10.231.23.240:5555 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:1872 cluster_stats_messages_pong_sent:1877 cluster_stats_messages_sent:3749 cluster_stats_messages_ping_received:1872 cluster_stats_messages_pong_received:1872 cluster_stats_messages_meet_received:5 cluster_stats_messages_received:3749查看集群节点 10.231.23.240:5555 cluster nodes 738f0fe576d1433302c967d954fc09a92ccbba46 192.168.200.1:551015510 slave 17debd2a9e30af742956428d959d87ad3b2f6fd9 0 1605753009829 3 connected b5983582f3c04ff7639e09b405fb8ef82c6cbb5d 192.168.200.1:555815558 slave 69cf0edf78f88458535c05446deaad8bce0123eb 0 1605753009527 1 connected 326176c22211e64b94697ddc12748e15ffd98402 192.168.200.1:555915559 slave ef9eaf11a9664a023c2a686186b4d69c44415bb3 0 1605753010834 2 connected 17debd2a9e30af742956428d959d87ad3b2f6fd9 192.168.200.1:555715557 master - 0 1605753009000 3 connected 10923-16383 ef9eaf11a9664a023c2a686186b4d69c44415bb3 192.168.200.1:555615556 master - 0 1605753010029 2 connected 5461-10922 69cf0edf78f88458535c05446deaad8bce0123eb 192.168.200.11:555515555 myself,master - 0 1605753010000 1 connected 0-5460测试一下添加数据 127.0.0.1:5555 set test1 haibo OK 127.0.0.1:5555 set test2 haibo - Redirected to slot [8899] located at 192.168.200.1:5557 OK 192.168.200.1:5557 get test2 haibo 192.168.200.1:5557 get test1 - Redirected to slot [4768] located at 192.168.200.1:5555 haibo 192.168.200.1:5555 get test2 - Redirected to slot [8899] located at 192.168.200.1:5557 haibo 192.168.200.1:5557 现在三主三从的Redis-cluster集群已经正常运行了现在我们像其中加入两个节点一主一从。首先还是用docker启动两个容器端口55615562。 首先将5561加入到集群为master节点 redis-cli --cluster add-node 10.231.23.240:5561 10.231.23.240:5555Adding node 10.231.23.240:5561 to cluster 10.231.23.240:5555Performing Cluster Check (using node 10.231.23.240:5555) M: 69cf0edf78f88458535c05446deaad8bce0123eb 10.231.23.240:5555slots:[0-5460] (5461 slots) master1 additional replica(s) S: 738f0fe576d1433302c967d954fc09a92ccbba46 192.168.200.1:5510slots: (0 slots) slavereplicates 17debd2a9e30af742956428d959d87ad3b2f6fd9 S: b5983582f3c04ff7639e09b405fb8ef82c6cbb5d 192.168.200.1:5558slots: (0 slots) slavereplicates 69cf0edf78f88458535c05446deaad8bce0123eb S: 326176c22211e64b94697ddc12748e15ffd98402 192.168.200.1:5559slots: (0 slots) slavereplicates ef9eaf11a9664a023c2a686186b4d69c44415bb3 M: 17debd2a9e30af742956428d959d87ad3b2f6fd9 192.168.200.1:5557slots:[10923-16383] (5461 slots) master1 additional replica(s) M: ef9eaf11a9664a023c2a686186b4d69c44415bb3 192.168.200.1:5556slots:[5461-10922] (5462 slots) master1 additional replica(s) [OK] All nodes agree about slots configuration.Check for open slots...Check slots coverage...加入之后slot还没有分片,新加入节点的slot还是空的。 现在执行重新分片操作 redis-cli --cluster reshard 10.231.23.240:5561 --cluster-from 69cf0edf78f88458535c05446deaad8bce0123eb,ef9eaf11a9664a023c2a686186b4d69c44415bb3,17debd2a9e30af742956428d959d87ad3b2f6fd9 --cluster-to 10cc93e09a91e0e9cfd749d58e4ae1220f5f412c --cluster-slots 4000分片之后可以看到新节点已经指派了slot: 192.168.200.1:5556 cluster nodes 17debd2a9e30af742956428d959d87ad3b2f6fd9 192.168.200.1:555715557 master - 0 1605756921113 3 connected 12256-16383 738f0fe576d1433302c967d954fc09a92ccbba46 192.168.200.1:551015510 slave 17debd2a9e30af742956428d959d87ad3b2f6fd9 0 1605756921615 3 connected b5983582f3c04ff7639e09b405fb8ef82c6cbb5d 192.168.200.1:555815558 slave 69cf0edf78f88458535c05446deaad8bce0123eb 0 1605756920000 1 connected 326176c22211e64b94697ddc12748e15ffd98402 192.168.200.1:555915559 slave ef9eaf11a9664a023c2a686186b4d69c44415bb3 0 1605756921514 2 connected 10cc93e09a91e0e9cfd749d58e4ae1220f5f412c 192.168.200.1:556115561 master - 0 1605756920109 7 connected 0-1332 5461-6794 10923-12255 ef9eaf11a9664a023c2a686186b4d69c44415bb3 192.168.200.14:555615556 myself,master - 0 1605756920000 2 connected 6795-10922 69cf0edf78f88458535c05446deaad8bce0123eb 192.168.200.1:555515555 master - 0 1605756920000 1 connected 1333-5460 上面是使用docker部署Redis的简单过程。