redis 集群搭建

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#redis 官网： https://redis.io

#redis 文档：https://redis.io/documentation

#redis 集群：https://redis.io/topics/cluster-tutorial

#redis 常用配置解释：https://yq.aliyun.com/articles/38806；https://github.com/linli8/cnblogs/blob/master/redis%E5%89%AF%E6%9C%AC.conf

#软件下载

[root@node3 ~]#  wget http://download.redis.io/releases/redis-3.2.9.tar.gz

#编译

[root@node3 ~]# mkdir /usr/local/redis[root@node3 ~]# mkdir /usr/local/redis/{data,conf,bin}[root@node3 ~]# tar -xf redis-3.2.9.tar.gz [root@node3 ~]# cd redis-3.2.9/[root@node3 redis-3.2.9]# make

#拷贝编译后的文件

[root@node3 redis-3.2.9]# cd src/[root@node3 src]# \cp -p mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server redis-trib.rb /usr/local/redis/bin/[root@node3 src]# cd ..[root@node3 redis-3.2.9]# cp -p redis.conf /usr/local/redis/conf/

#创建数据目录

[root@node3 redis-3.2.9]# cd /usr/local/redis/data/[root@node3 data]# mkdir {7000..7005}[root@node3 data]# ls7000  7001  7002  7003  7004  7005[root@node3 data]#

#修改相应端口（大致如下）

[root@node3 conf]# grep '^[a-Z]' redis.conf bind 0.0.0.0dir /usr/local/redis/data/7000pidfile /var/run/redis_7000.pidappendfilename "appendonly-7000.aof"port 7000cluster-config-file nodes-7000.conf cluster-enabled yescluster-node-timeout 15000protected-mode notcp-backlog 511timeout 0tcp-keepalive 300daemonize yessupervised nologlevel warninglogfile ""databases 16save 900 1save 300 10save 60 10000stop-writes-on-bgsave-error yesrdbcompression yesrdbchecksum nodbfilename dump.rdbslave-serve-stale-data yesslave-read-only yesrepl-diskless-sync yesrepl-diskless-sync-delay 5repl-disable-tcp-nodelay noslave-priority 100appendonly yesappendfsync everysecno-appendfsync-on-rewrite noauto-aof-rewrite-percentage 100auto-aof-rewrite-min-size 64mbaof-load-truncated yeslua-time-limit 5000slowlog-log-slower-than 100000slowlog-max-len 128hash-max-ziplist-entries 512hash-max-ziplist-value 64list-max-ziplist-size -2list-compress-depth 0latency-monitor-threshold 0set-max-intset-entries 512zset-max-ziplist-entries 128zset-max-ziplist-value 64hll-sparse-max-bytes 3000activerehashing yesclient-output-buffer-limit normal 0 0 0client-output-buffer-limit slave 256mb 64mb 60client-output-buffer-limit pubsub 64mb 16mb 60hz 10aof-rewrite-incremental-fsync yesmaxmemory-policy allkeys-lrumaxmemory-samples 5maxclients 10000

#拷贝配置文件

[root@node3 conf]# for i in {7000..7005};do cp redis.conf $i.conf;done[root@node3 conf]# ls7000.conf  7001.conf  7002.conf  7003.conf  7004.conf  7005.conf  redis.conf[root@node3 conf]# rm -f redis.conf#批量修改[root@node3 conf]# for i in {7000..7005};do sed -i "s/7000/$i/g" "$i".conf;done

#修改脚本（十分粗糙的脚本，不建议采纳，望读者自行编写）

[root@node3 ~]# cp -p  redis-3.2.9/utils/redis_init_script /etc/init.d/redis[root@node3 ~]# vim /etc/init.d/redis [root@node3 ~]# cat /etc/init.d/redis #!/bin/sh## Simple Redis init.d script conceived to work on Linux systems# as it does use of the /proc filesystem.#REDISPORT=$2EXEC=/usr/local/redis/bin/redis-serverCLIEXEC=/usr/local/redis/bin/redis-cliCONFDIR="/usr/local/redis/conf/"#PIDFILE=/var/run/redis_${REDISPORT}.pid#CONF="$CONFDIR${REDISPORT}.conf"function main(){REDISPORT=$2PIDFILE=/var/run/redis_${REDISPORT}.pidCONF="$CONFDIR${REDISPORT}.conf"  case "$1" in    start)        if [ -f $PIDFILE ]        then                echo "$PIDFILE exists, process is already running or crashed"        else                echo "Starting Redis server..."                $EXEC $CONF        fi        ;;    stop)        if [ ! -f $PIDFILE ]        then                echo "$PIDFILE does not exist, process is not running"        else                PID=$(cat $PIDFILE)                echo "Stopping ..."                $CLIEXEC -p $REDISPORT shutdown                while [ -x /proc/${PID} ]                do                    echo "Waiting for Redis to shutdown ..."                    sleep 1                done                echo "Redis stopped"        fi        ;;    *)        echo "Please use start or stop as first parameter,port or all as second parameter."        ;;  esac}if [ "$2" == "all" ]then    for i in `ls $CONFDIR | grep [0-9] | cut -c 1-4` ;domain $1 $i    doneelse    main $1 $2fi

#启动服务

[root@node3 ~]# service redis start all[root@node3 ~]# netstat -lntup | grep redistcp        0      0 0.0.0.0:17000           0.0.0.0:*               LISTEN      6735/redis-server 0 tcp        0      0 0.0.0.0:17001           0.0.0.0:*               LISTEN      6737/redis-server 0 tcp        0      0 0.0.0.0:17002           0.0.0.0:*               LISTEN      6743/redis-server 0 tcp        0      0 0.0.0.0:17003           0.0.0.0:*               LISTEN      6747/redis-server 0 tcp        0      0 0.0.0.0:17004           0.0.0.0:*               LISTEN      6749/redis-server 0 tcp        0      0 0.0.0.0:17005           0.0.0.0:*               LISTEN      6755/redis-server 0 tcp        0      0 0.0.0.0:7000            0.0.0.0:*               LISTEN      6735/redis-server 0 tcp        0      0 0.0.0.0:7001            0.0.0.0:*               LISTEN      6737/redis-server 0 tcp        0      0 0.0.0.0:7002            0.0.0.0:*               LISTEN      6743/redis-server 0 tcp        0      0 0.0.0.0:7003            0.0.0.0:*               LISTEN      6747/redis-server 0 tcp        0      0 0.0.0.0:7004            0.0.0.0:*               LISTEN      6749/redis-server 0 tcp        0      0 0.0.0.0:7005            0.0.0.0:*               LISTEN      6755/redis-server 0 [root@node3 ~]#

#创建集群

[root@node3 conf]# yum install ruby ruby-devel rubygems rpm-build[root@node3 conf]# gem install redis        #如果没有反应，可以更换源#更换源 参考：http://gems.ruby-china.org/# gem update --system # 这里请×××一下#gem sources --add https://gems.ruby-china.org/ --remove https://rubygems.org/#[root@node3 conf]# cd /usr/local/redis/bin/[root@node3 bin]# lsmkreleasehdr.sh  redis-check-aof  redis-cli       redis-serverredis-benchmark  redis-check-rdb  redis-sentinel  redis-trib.rb[root@node3 bin]# ./redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7001 127.0.0.1:7002 127.0.0.1:7003 127.0.0.1:7004 127.0.0.1:7005>>> Creating cluster>>> Performing hash slots allocation on 6 nodes...Using 3 masters:127.0.0.1:7000127.0.0.1:7001127.0.0.1:7002Adding replica 127.0.0.1:7003 to 127.0.0.1:7000Adding replica 127.0.0.1:7004 to 127.0.0.1:7001Adding replica 127.0.0.1:7005 to 127.0.0.1:7002M: de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1:7000   slots:0-5460 (5461 slots) masterM: fce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1:7001   slots:5461-10922 (5462 slots) masterM: 83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1:7002   slots:10923-16383 (5461 slots) masterS: af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1:7003   replicates de6c4b00953b0e354ea375106f29bd627ed3ab2eS: 64391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1:7004   replicates fce2cebafefeb540592c624c68b741d465ce095bS: 3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1:7005   replicates 83474177e39b72145adaad60cad1fe4523a0ee79Can 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 clusterWaiting for the cluster to join....>>> Performing Cluster Check (using node 127.0.0.1:7000)M: de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1:7000   slots:0-5460 (5461 slots) master   1 additional replica(s)M: fce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1:7001   slots:5461-10922 (5462 slots) master   1 additional replica(s)S: af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1:7003   slots: (0 slots) slave   replicates de6c4b00953b0e354ea375106f29bd627ed3ab2eM: 83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1:7002   slots:10923-16383 (5461 slots) master   1 additional replica(s)S: 64391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1:7004   slots: (0 slots) slave   replicates fce2cebafefeb540592c624c68b741d465ce095bS: 3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1:7005   slots: (0 slots) slave   replicates 83474177e39b72145adaad60cad1fe4523a0ee79[OK] All nodes agree about slots configuration.>>> Check for open slots...>>> Check slots coverage...[OK] All 16384 slots covered.

#登陆集群

[root@node3 ~]# /usr/local/redis/bin/redis-cli -c -h 127.0.0.1 -p 7000127.0.0.1:7000> cluster nodesfce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1:7001 master - 0 1495358027725 2 connected 5461-10922de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1:7000 myself,master - 0 0 1 connected 0-5460af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1:7003 slave de6c4b00953b0e354ea375106f29bd627ed3ab2e 0 1495358029772 4 connected83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1:7002 master - 0 1495358025682 3 connected 10923-1638364391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1:7004 slave fce2cebafefeb540592c624c68b741d465ce095b 0 1495358028748 5 connected3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1:7005 slave 83474177e39b72145adaad60cad1fe4523a0ee79 0 1495358026706 6 connected127.0.0.1:7000> cluster infocluster_state:okcluster_slots_assigned:16384cluster_slots_ok:16384cluster_slots_pfail:0cluster_slots_fail:0cluster_known_nodes:6cluster_size:3cluster_current_epoch:6cluster_my_epoch:1cluster_stats_messages_sent:77cluster_stats_messages_received:77127.0.0.1:7000> cluster nodesfce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1:7001 master - 0 1495358038300 2 connected 5461-10922de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1:7000 myself,master - 0 0 1 connected 0-5460af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1:7003 slave de6c4b00953b0e354ea375106f29bd627ed3ab2e 0 1495358039395 4 connected83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1:7002 master - 0 1495358036106 3 connected 10923-1638364391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1:7004 slave fce2cebafefeb540592c624c68b741d465ce095b 0 1495358033918 5 connected3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1:7005 slave 83474177e39b72145adaad60cad1fe4523a0ee79 0 1495358040489 6 connected127.0.0.1:7000>

#redis集群搭建成功