Redis集群部署

1. 编译安装

# cd /usr/local/src/# wget http://download.redis.io/releases/redis-5.0.0.tar.gz# tar zxvf redis-5.0.0.tar.gz# apt-get update && apt-get install -y gcc automake make# cd redis-5.0.0 && make && make install# cp ./src/redis-server /usr/bin/# cp ./src/redis-cli /usr/bin/

2. 创建服务启停脚本(如果需要)

# cp ./utils/redis_init_script /etc/init.d/redisd# service redisd start

3. 创建目录及配置文件

# mkdir /tmp/redis-cluster/{7000,7001,7002,7003,7004,7005}/log -pv# cp /usr/local/src/redis-5.0.0/redis.conf /data/redis-cluster/7000/redis.conf# cd /data/redis-cluster/ && cat 7000/redis.confbind 0.0.0.0protected-mode yesport 7000tcp-backlog 511timeout 0tcp-keepalive 300daemonize yessupervised nopidfile /var/run/redis_7000.pidloglevel noticelogfile "/data/redis-cluster/7000/log/redis-7000.log"databases 16always-show-logo yessave 900 1save 300 10save 60 10000stop-writes-on-bgsave-error yesrdbcompression yesrdbchecksum yesdbfilename dump.rdbdir ./replica-serve-stale-data yesreplica-read-only yesrepl-diskless-sync norepl-diskless-sync-delay 5repl-disable-tcp-nodelay noreplica-priority 100lazyfree-lazy-eviction nolazyfree-lazy-expire nolazyfree-lazy-server-del noreplica-lazy-flush noappendonly yesappendfilename "appendonly.aof"appendfsync everysecno-appendfsync-on-rewrite noauto-aof-rewrite-percentage 100auto-aof-rewrite-min-size 64mbaof-load-truncated yesaof-use-rdb-preamble yeslua-time-limit 5000cluster-enabled yescluster-config-file nodes.confcluster-node-timeout 15000slowlog-log-slower-than 10000slowlog-max-len 128latency-monitor-threshold 0notify-keyspace-events ""hash-max-ziplist-entries 512hash-max-ziplist-value 64list-max-ziplist-size -2list-compress-depth 0set-max-intset-entries 512zset-max-ziplist-entries 128zset-max-ziplist-value 64hll-sparse-max-bytes 3000stream-node-max-bytes 4096stream-node-max-entries 100activerehashing yesclient-output-buffer-limit normal 0 0 0client-output-buffer-limit replica 256mb 64mb 60client-output-buffer-limit pubsub 32mb 8mb 60hz 10dynamic-hz yesaof-rewrite-incremental-fsync yesrdb-save-incremental-fsync yesmasterauth AuDdQdpuEZpXgNthP6CjYjPbrequirepass AuDdQdpuEZpXgNthP6CjYjPb修改其他端口配置文件# cp 7000/redis.conf 7001/# cp 7000/redis.conf 7002/# cp 7000/redis.conf 7003/# cp 7000/redis.conf 7004/# cp 7000/redis.conf 7005/# sed -i 's/7000/7001/g' 7001/redis.conf# sed -i 's/7000/7002/g' 7002/redis.conf# sed -i 's/7000/7003/g' 7003/redis.conf# sed -i 's/7000/7004/g' 7004/redis.conf# sed -i 's/7000/7005/g' 7005/redis.conf

4. 调整下内存分配使用方式并使其生效

#此参数可用的值为0,1,2 #0表示当用户空间请求更多的内存时，内核尝试估算出可用的内存 #1表示内核允许超量使用内存直到内存用完为止 #2表示整个内存地址空间不能超过swap+(vm.overcommit_ratio)%的RAM值 echo "vm.overcommit_memory=1">>/etc/sysctl.confsysctl -p

5. 制作启动脚本

# cat start-redis-cluster.sh#!/bin/bashcd /data/redis-clustercd 7000 && /usr/bin/redis-server /data/redis-cluster/7000/redis.confcd ../7001 && /usr/bin/redis-server /data/redis-cluster/7001/redis.confcd ../7002 && /usr/bin/redis-server /data/redis-cluster/7002/redis.confcd ../7003 && /usr/bin/redis-server /data/redis-cluster/7003/redis.confcd ../7004 && /usr/bin/redis-server /data/redis-cluster/7004/redis.confcd ../7005 && /usr/bin/redis-server /data/redis-cluster/7005/redis.conf

6. 启动服务

# bash start-redis-cluster.sh# ps -ef|grep redisroot     30192     1  0 06:54 ?        00:00:04 /usr/bin/redis-server 0.0.0.0:7000 [cluster]root     30194     1  0 06:54 ?        00:00:05 /usr/bin/redis-server 0.0.0.0:7001 [cluster]root     30196     1  0 06:54 ?        00:00:04 /usr/bin/redis-server 0.0.0.0:7002 [cluster]root     30201     1  0 06:54 ?        00:00:04 /usr/bin/redis-server 0.0.0.0:7003 [cluster]root     30206     1  0 06:54 ?        00:00:05 /usr/bin/redis-server 0.0.0.0:7004 [cluster]root     30211     1  0 06:54 ?        00:00:04 /usr/bin/redis-server 0.0.0.0:7005 [cluster]

7. 创建集群

# redis-cli --cluster create 10.20.71.215:7000 10.20.73.204:7001 10.20.71.67:7002 10.20.71.215:7003 10.20.73.204:7004 10.20.71.67:7005 --cluster-replicas 1 -a AuDdQdpuEZpXgNthP6CjYjPb

8. 查看集群信息

root@mgo-db01cn-t001:/usr/local/src/redis-5.0.0# redis-cli -c -p 7000127.0.0.1:7000> auth AuDdQdpuEZpXgNthP6CjYjPbOK127.0.0.1:7000> cluster nodesab8eeb87cc65dd14d03b8ac1b1e8cf7956cec1f5 10.20.71.67:7005@17005 slave 113373eeb8450caf99f8bef80f7cf5e8be41f370 0 1556958626898 6 connected387497dd41e34c90f4ccfa5909e2c63987d2f0d6 10.20.71.67:7002@17002 master - 0 1556958624893 3 connected 10923-16383356ac5e0988889a793c055b99c1abff6579ba322 10.20.73.204:7004@17004 slave 387497dd41e34c90f4ccfa5909e2c63987d2f0d6 0 1556958625000 5 connected3c1d7c057ac1d325fcf63895ae52733242abc72b 10.20.73.204:7001@17001 master - 0 1556958625000 2 connected 5461-10922113373eeb8450caf99f8bef80f7cf5e8be41f370 10.20.71.215:7000@17000 myself,master - 0 1556958625000 1 connected 0-546054c72a2901af3dd72cbbb816bd6c5283eec6eec9 10.20.71.215:7003@17003 slave 3c1d7c057ac1d325fcf63895ae52733242abc72b 0 1556958625894 4 connected

控制台信息显示: 当前集群中存在3个主节点和3个从节点，说明我们的集群已经搭建成功 至此，Redis Cluster集群就搭建完成了!

9. 测试数据

root@mgo-db01cn-t001:~# redis-cli -h 10.20.73.204 -p 700110.20.73.204:7001> auth AuDdQdpuEZpXgNthP6CjYjPbOK10.20.73.204:7001>10.20.73.204:7001>10.20.73.204:7001>10.20.73.204:7001> set name shukeOK10.20.73.204:7001>10.20.73.204:7001>10.20.73.204:7001>10.20.73.204:7001> get name"shuke"

10. cluster saveconfig

将节点的配置文件保存到硬盘里面.试一下：127.0.0.1:7009> cluster saveconfigOKok说明成功了,它会覆盖配置文件夹里的nodes.conf文件.这样做是为了某种情况下nodes文件丢失,这样就会生成一个最新的节点配置文件。

Tips :

1.如果想重新创建集群，需要登录到每个节点，执行flushdb，然后执行cluster reset，重启节点;

集群管理

Redis 集群教程 集群管理常见操作 常用命令

refs

Redis 高可用部署方案 Redis集群规范

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