redis.conf
按三主三从的规格配置6个实例：
port 6379 requirepass 123456 //设置密码 masterauth 123456 //如果requirepass设置了，masterauth也必须要保持一样，否则无法同步。 cluster-enabled yes //开启集群模式 cluster-config-file nodes-6379.conf //每台机器的集群配置文件，不需要人工修改，程序自动记录，这块名字可以根据端口号进行设置。 cluster-node-timeout 15000 //单位是毫秒，如果在15秒还没有响应，结点会被认为出了故障。启动redis实例
这里写了一个脚本来执行，节点多了太麻烦了：
#!/bin/bash echo '>>>>>>>>>>>>>>>>>>> docker stop:' docker stop redis-node1 docker stop redis-node2 docker stop redis-node3 docker stop redis-node4 docker stop redis-node5 docker stop redis-node6 echo '>>>>>>>>>>>>>>>>>>> docker rm:' docker rm redis-node1 docker rm redis-node2 docker rm redis-node3 docker rm redis-node4 docker rm redis-node5 docker rm redis-node6 echo '>>>>>>>>>>>>>>>>>> clear data': rm -rf ./node1/data rm -rf ./node2/data rm -rf ./node3/data rm -rf ./node4/data rm -rf ./node5/data rm -rf ./node6/data echo '>>>>>>>>>>>>>>>>>> docker create:' docker run -idt --net=host --name redis-node1 -p 6379:6379 -p 16379:16379 -v /usr/local/redis/node1/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node1/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf docker run -idt --net=host --name redis-node2 -p 6380:6380 -p 16380:16380 -v /usr/local/redis/node2/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node2/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf docker run -idt --net=host --name redis-node3 -p 6381:6381 -p 16381:16381 -v /usr/local/redis/node3/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node3/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf docker run -idt --net=host --name redis-node4 -p 6382:6382 -p 16382:16382 -v /usr/local/redis/node4/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node4/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf docker run -idt --net=host --name redis-node5 -p 6383:6383 -p 16383:16383 -v /usr/local/redis/node5/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node5/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf docker run -idt --net=host --name redis-node6 -p 6384:6384 -p 16384:16384 -v /usr/local/redis/node6/redis.conf:/etc/redis/redis.conf -v /usr/local/redis/node6/data:/data --privileged=true docker.io/redis redis-server /etc/redis/redis.conf echo '>>>>>>>>>>>>>>>>> docker nodes status:' ps aux |grep cluster |grep redis
创建集群注意：如果是自己搭来玩，用一台主机，则记得把--net=host加上，该参数的作用是让docker和宿主机使用同一个网卡驱动，若不配置，那么到时候redis集群就会用docker创建的虚拟网卡驱动，导致redis节点和宿主机不在同一个网段。
[root@localhost redis]# docker exec -it redis-node1 /bin/bash root@localhost:/data# redis-cli --cluster create 192.168.3.101:6379 192.168.3.101:6380 192.168.3.101:6381 192.168.3.101:6382 192.168.3.101:6383 192.168.3.101:6384 --cluster-replicas 1 -a 123456 Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe. >>> Performing hash slots allocation on 6 nodes... Master[0] -> Slots 0 - 5460 Master[1] -> Slots 5461 - 10922 Master[2] -> Slots 10923 - 16383 Adding replica 192.168.3.101:6383 to 192.168.3.101:6379 Adding replica 192.168.3.101:6384 to 192.168.3.101:6380 Adding replica 192.168.3.101:6382 to 192.168.3.101:6381 >>> Trying to optimize slaves allocation for anti-affinity [WARNING] Some slaves are in the same host as their master M: a459cc9e605645cd5a3efa402a6472b36e7ebc65 192.168.3.101:6379 slots:[0-5460] (5461 slots) master M: 0e4526a7ebd3643a3d53f6aea5fc4f8935464fa2 192.168.3.101:6380 slots:[5461-10922] (5462 slots) master M: ec5fac133f0a4fcaff91e32fe1160e89d047ea44 192.168.3.101:6381 slots:[10923-16383] (5461 slots) master S: ee6230d0a064296f46201ac72f3eb52f574af456 192.168.3.101:6382 replicates 0e4526a7ebd3643a3d53f6aea5fc4f8935464fa2 S: fc331235e462cc05462494d3b32ae95677f90e2c 192.168.3.101:6383 replicates ec5fac133f0a4fcaff91e32fe1160e89d047ea44 S: 635d0a39c21614b4af529ba45fbc7a381d5f0061 192.168.3.101:6384 replicates a459cc9e605645cd5a3efa402a6472b36e7ebc65 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 192.168.3.101:6379) M: a459cc9e605645cd5a3efa402a6472b36e7ebc65 192.168.3.101:6379 slots:[0-5460] (5461 slots) master 1 additional replica(s) S: ee6230d0a064296f46201ac72f3eb52f574af456 192.168.3.101:6382 slots: (0 slots) slave replicates 0e4526a7ebd3643a3d53f6aea5fc4f8935464fa2 M: 0e4526a7ebd3643a3d53f6aea5fc4f8935464fa2 192.168.3.101:6380 slots:[5461-10922] (5462 slots) master 1 additional replica(s) M: ec5fac133f0a4fcaff91e32fe1160e89d047ea44 192.168.3.101:6381 slots:[10923-16383] (5461 slots) master 1 additional replica(s) S: fc331235e462cc05462494d3b32ae95677f90e2c 192.168.3.101:6383 slots: (0 slots) slave replicates ec5fac133f0a4fcaff91e32fe1160e89d047ea44 S: 635d0a39c21614b4af529ba45fbc7a381d5f0061 192.168.3.101:6384 slots: (0 slots) slave replicates a459cc9e605645cd5a3efa402a6472b36e7ebc65 [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.
至此，一个redis集群搭建完毕了。
接入SpringBoot项目创建一个maven项目，pom文件：
单节点配置4.0.0 org.example WebProject 1.0-SNAPSHOT org.springframework.boot spring-boot-starter-parent 2.3.12.RELEASE 8 8 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-data-redis
application.yml
server:
# 端口号
port: 8080
spring:
redis:
host: 192.168.3.101
port: 6379
password: 123456
测试
@RunWith(SpringRunner.class)
@SpringBootTest
public class RedisTest {
@Autowired
RedisTemplate redisTemplate;
@Test
public void t1(){
redisTemplate.opsForValue().set("k1","123");
Object k1 = redisTemplate.opsForValue().get("k1");
System.out.println(k1.toString());
}
}
>>>>>>123
看似很完美，but：
所以redis集群是没办法单节点运行的。还是需要进行集群配置。
集群配置spring:
redis:
# host: 192.168.3.101
# port: 6379
password: 123456
cluster:
nodes: 192.168.3.101:6379,192.168.3.101:6380,192.168.3.101:6381,192.168.3.101:6382,192.168.3.101:6383,192.168.3.101:6384
完结撒花！
