3.客户端与redis节点直连,不需要中间代理层,客户端不需要连接集群所有节点,连接集群中任何一个可用节点即可。
搭建步骤
1.下载最新版本Redis:wget http://download.redis.io/releases/redis-6.0.5.tar.gz2.升级基础组件,否则编译安装会报错:
# 堆代码 duidaima.com # 升级到gcc 9.3: yum -y install centos-release-scl yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils scl enable devtoolset-9 bash # 需要注意的是scl命令启用只是临时的,退出shell或重启就会恢复原系统gcc版本。 # 如果要长期使用gcc 9.3的话: echo "source /opt/rh/devtoolset-9/enable" >>/etc/profile3.编译安装:
make && make install4.创建集群配置:
mkdir redis-cluster5.创建集群文件夹,然后在该文件夹下创建6个文件,同redis.conf配置一致,7001.conf、7002.conf、7003.conf、7004.conf、7005.conf、7006.conf
port 700x // 端口700X bind 内网ip // 需要改为其他节点机器可访问的ip 否则创建集群时无法访问对应的端口,无法创建集群 daemonize yes // redis后台运行 pidfile /var/run/redis_700x.pid // pidfile文件对应7001,7002 cluster-enabled yes // 开启集群 把注释#去掉 cluster-config-file nodes_700x.conf // 集群的配置 配置文件首次启动自动生成 7001,7002 cluster-node-timeout 15000 // 请求超时 默认15秒,可自行设置 appendonly yes // # AOF 持久化,按需要选择是否开启6.启动服务:
redis-server ../redis-cluster/7001.conf redis-server ../redis-cluster/7002.conf redis-server ../redis-cluster/7003.conf redis-server ../redis-cluster/7004.conf redis-server ../redis-cluster/7005.conf redis-server ../redis-cluster/7006.conf7.创建集群:
--replicas参数指定集群中每个主节点配备几个从节点,这里设置为1。 redis-cli --cluster create 172.17.1.218:7001 172.17.1.218:7002 172.17.1.218:7003 172.17.1.218:7004 172.17.1.218:7005 172.17.1.218:7006 --cluster-replicas 18.查看集群:
redis-cli --cluster check 172.17.1.218:7001 172.17.1.218:7002 (406a1d6e...) -> 0 keys | 5461 slots | 1 slaves. 172.17.1.218:7003 (85df8dc9...) -> 0 keys | 5462 slots | 1 slaves. 172.17.1.218:7004 (54f13720...) -> 2 keys | 5461 slots | 1 slaves. [OK] 2 keys in 3 masters. 0.00 keys per slot on average. >>> Performing Cluster Check (using node 172.17.1.218:7001) S: 2d589d0077771ca9a7b2909b351e350aa69bea45 172.17.1.218:7001 slots: (0 slots) slave replicates 54f13720da944d3dcc75351c4042fcaf3b2300e0 M: 406a1d6e9bcc760501c6b8f71f9151e020b247bd 172.17.1.218:7002 slots:[10923-16383] (5461 slots) master 1 additional replica(s) S: e52eda05e4df779e15437f7f42522459a3e26b27 172.17.1.218:7005 slots: (0 slots) slave replicates 85df8dc9b649e02740fa0f932aa1df135d44953e M: 85df8dc9b649e02740fa0f932aa1df135d44953e 172.17.1.218:7003 slots:[5461-10922] (5462 slots) master 1 additional replica(s) M: 54f13720da944d3dcc75351c4042fcaf3b2300e0 172.17.1.218:7004 slots:[0-5460] (5461 slots) master 1 additional replica(s) S: 60f49255085936fbcf682bafc81319f9393150c9 172.17.1.218:7006 slots: (0 slots) slave replicates 406a1d6e9bcc760501c6b8f71f9151e020b247bd [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.从集群信息,我们可以看出有三组主从关系:
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency>配置文件 bootstrap.yml:
spring: redis: timeout: 30000 password: 123456 cluster: nodes: - 172.17.1.218:7001 - 172.17.1.218:7002 - 172.17.1.218:7003 - 172.17.1.218:7004 - 172.17.1.218:7005 - 172.17.1.218:7006 max-redirects: 3 lettuce: max-active: 1000 max-idle: 10 max-wait: -1 min-idle: 5开发者可以对 RedisTemplate 进行一个简单的封装成 RedisUtil ,可参考妹子图缓存工具类。