错过血亏！一文详解Redis集群部署

　　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.conf bind 0.0.0.0 protected-mode yes port 7000 tcp-backlog 511 timeout 0 tcp-keepalive 300 daemonize yes supervised no pidfile /var/run/redis_7000.pid loglevel notice logfile ＂/data/redis-cluster/7000/log/redis-7000.log＂ databases 16 always-show-logo yes save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb dir ./ replica-serve-stale-data yes replica-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no replica-priority 100 lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no replica-lazy-flush no appendonly yes appendfilename ＂appendonly.aof＂ appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb aof-load-truncated yes aof-use-rdb-preamble yes lua-time-limit 5000 cluster-enabled yes cluster-config-file nodes.conf cluster-node-timeout 15000 slowlog-log-slower-than 10000 slowlog-max-len 128 latency-monitor-threshold 0 notify-keyspace-events ＂＂ hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-size -2 list-compress-depth 0 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 hll-sparse-max-bytes 3000 stream-node-max-bytes 4096 stream-node-max-entries 100 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit replica 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 dynamic-hz yes aof-rewrite-incremental-fsync yes rdb-save-incremental-fsync yes masterauth AuDdQdpuEZpXgNthP6CjYjPb requirepass 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.conf sysctl -p
　　5. 制作启动脚本  # cat start-redis-cluster.sh #!/bin/bash   cd /data/redis-cluster   cd 7000 && /usr/bin/redis-server /data/redis-cluster/7000/redis.conf cd ../7001 && /usr/bin/redis-server /data/redis-cluster/7001/redis.conf cd ../7002 && /usr/bin/redis-server /data/redis-cluster/7002/redis.conf cd ../7003 && /usr/bin/redis-server /data/redis-cluster/7003/redis.conf cd ../7004 && /usr/bin/redis-server /data/redis-cluster/7004/redis.conf cd ../7005 && /usr/bin/redis-server /data/redis-cluster/7005/redis.conf
　　6. 启动服务  # bash start-redis-cluster.sh # ps -ef|grep redis root     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 7000 127.0.0.1:7000> auth AuDdQdpuEZpXgNthP6CjYjPb OK 127.0.0.1:7000> cluster nodes ab8eeb87cc65dd14d03b8ac1b1e8cf7956cec1f5 10.20.71.67:7005@17005 slave 113373eeb8450caf99f8bef80f7cf5e8be41f370 0 1556958626898 6 connected 387497dd41e34c90f4ccfa5909e2c63987d2f0d6 10.20.71.67:7002@17002 master - 0 1556958624893 3 connected 10923-16383 356ac5e0988889a793c055b99c1abff6579ba322 10.20.73.204:7004@17004 slave 387497dd41e34c90f4ccfa5909e2c63987d2f0d6 0 1556958625000 5 connected 3c1d7c057ac1d325fcf63895ae52733242abc72b 10.20.73.204:7001@17001 master - 0 1556958625000 2 connected 5461-10922 113373eeb8450caf99f8bef80f7cf5e8be41f370 10.20.71.215:7000@17000 myself,master - 0 1556958625000 1 connected 0-5460 54c72a2901af3dd72cbbb816bd6c5283eec6eec9 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 7001 10.20.73.204:7001> auth AuDdQdpuEZpXgNthP6CjYjPb OK 10.20.73.204:7001> 10.20.73.204:7001> 10.20.73.204:7001> 10.20.73.204:7001> set name shuke OK 10.20.73.204:7001> 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 saveconfig OK ok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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　　*特别声明：本文为【 赵峰峰  】投稿，仅代表作者观点。马哥教育仅提供信息发布平台。