006-redis5 3台机器 6个实例cluster集群搭建

红太狼 2023-10-11 15:51 19阅读 0赞

准备3台机器 192.168.1.27、192.168.1.28、192.168.1.29，centos7 操作系统

### 1、安装redis，安装目录/usr/local/redis ###

tar -zxvf redis-5.0.3.tar.gz
    mv redis-5.0.3 /usr/local/redis
    cd /usr/local/redis
    make && make test && make install

安装后目录结构为

[root@sword-01 redis]# pwd
    /usr/local/redis
    [root@sword-01 redis]# ll
    total 252
    -rw-rw-r--  1 root root 92434 Dec 12  2018 00-RELEASENOTES
    -rw-rw-r--  1 root root    53 Dec 12  2018 BUGS
    -rw-rw-r--  1 root root  1894 Dec 12  2018 CONTRIBUTING
    drwxr-xr-x  3 root root    86 Jun 13 13:51 copy
    -rw-rw-r--  1 root root  1487 Dec 12  2018 COPYING
    drwxrwxr-x  6 root root   192 Jun 13 09:14 deps
    -rw-rw-r--  1 root root    11 Dec 12  2018 INSTALL
    -rw-rw-r--  1 root root   151 Dec 12  2018 Makefile
    -rw-rw-r--  1 root root  4223 Dec 12  2018 MANIFESTO
    -rw-rw-r--  1 root root 20555 Dec 12  2018 README.md
    -rw-rw-r--  1 root root 62155 Dec 12  2018 redis.conf
    -rwxrwxr-x  1 root root   275 Dec 12  2018 runtest
    -rwxrwxr-x  1 root root   280 Dec 12  2018 runtest-cluster
    -rwxrwxr-x  1 root root   281 Dec 12  2018 runtest-sentinel
    -rw-rw-r--  1 root root  9710 Dec 12  2018 sentinel.conf
    drwxr-xr-x 44 root root  4096 Jun 20 18:00 snapshotting
    drwxrwxr-x  3 root root  8192 Jun 13 09:15 src
    drwxrwxr-x 10 root root   167 Dec 12  2018 tests
    drwxrwxr-x  8 root root  4096 Dec 12  2018 utils

安装6个实例的分别为  
192.168.1.27：7001  
192.168.1.27：7002  
192.168.1.28：7003  
192.168.1.28：7004  
192.168.1.29：7005  
192.168.1.29：7006

192.168.1.27：7001安装步骤如下

配置文件： 复制 /usr/local/redis/redis.conf 到 /etc/redis/7001.conf

mkdir /etc/redis  #配置文件目录
    cp /usr/local/redis/redis.conf  /etc/redis/7001.conf
    mkdir -p /etc/redis-cluster #集群配置目录
    mkdir -p /var/log/redis   #日志目录
    mkdir -p /var/redis/7001  #工作目录

更改配置7001.conf

port 7001  #端口
    cluster-enabled yes #启动集群
    protected-mode no  #保护模式
    masterauth redis-master  #集群认证
    requirepass redis-pass   #redis 密码
    daemonize yes  #后台启动
    cluster-config-file /etc/redis-cluster/node-7001.conf  #集群配置
    cluster-node-timeout 15000    #超时时间	
    pidfile		/var/run/redis_7001.pid   #进程文件						
    dir 		/var/redis/7001		#工作目录
    logfile /var/log/redis/7001.log  #日志目录
    bind 192.168.1.27		#绑定IP
    appendonly yes  #是否持久化

启动脚本

#启动脚本
    cd /usr/local/redis/utils/
    cp redis_init_script /etc/init.d/redis_7001

更改启动脚本redis\_7001 端口 为7001

#!/bin/sh
    #
    # Simple Redis init.d script conceived to work on Linux systems
    # as it does use of the /proc filesystem.
    
    # chkconfig:   2345 90 10
    
    # description:  Redis is a persistent key-value database
    
    ### BEGIN INIT INFO
    # Provides:     redis_6379
    # Default-Start:        2 3 4 5
    # Default-Stop:         0 1 6
    # Short-Description:    Redis data structure server
    # Description:          Redis data structure server. See https://redis.io
    ### END INIT INFO
    
    REDISPORT=7001  #更改端口
    EXEC=/usr/local/bin/redis-server
    CLIEXEC=/usr/local/bin/redis-cli
    PIDFILE=/var/run/redis_${REDISPORT}.pid
    CONF="/etc/redis/${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 argument"
            ;;
    esac

剩下的5个实例同样的配置

启动实例

cd /etc/init.d/
    ./redis_7001 start
    
    [root@sword-01 init.d]# ps -ef |grep redis
    root      2061     1  0 18:01 ?        00:00:12 /usr/local/bin/redis-server 192.168.1.27:7001 [cluster]
    root      2168  2111  0 19:15 pts/1    00:00:00 grep --color=auto redis

同样操作启动剩下5个实例

**启动集群**  
/usr/local/redis/src/redis-cli --cluster create 192.168.1.27:7001 192.168.1.27:7002 192.168.1.28:7003 192.168.1.28:7004 192.168.1.29:7005 192.168.1.29:7006 --cluster-replicas 1 -a redis-pass

[root@sword-01 init.d]# /usr/local/redis/src/redis-cli --cluster create 192.168.1.27:7001 192.168.1.27:7002 192.168.1.28:7003 192.168.1.28:7004 192.168.1.29:7005 192.168.1.29:7006 --cluster-replicas 1 -a redis-pass
    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 192.168.1.28:7004 to 192.168.1.27:7001
    Adding replica 192.168.1.27:7002 to 192.168.1.28:7003
    Adding replica 192.168.1.29:7006 to 192.168.1.29:7005
    >>> Trying to optimize slaves allocation for anti-affinity
    [OK] Perfect anti-affinity obtained!
    M: 121ba0dfba42436d0f54da329c54be441bf7023a 192.168.1.27:7001
       slots:[0-5460] (5461 slots) master
    S: 3aed761b317ece72eb37178b1d930395f94bf360 192.168.1.27:7002
       replicates e26bef0a1bba9629cd681fd49a1ae77e3bccef26
    M: dd9ef3065622a05602a3ae42b365ff2180ff3936 192.168.1.28:7003
       slots:[5461-10922] (5462 slots) master
    S: 2676b046e71ecaffff15d68ca1337e90d918bf39 192.168.1.28:7004
       replicates 121ba0dfba42436d0f54da329c54be441bf7023a
    M: e26bef0a1bba9629cd681fd49a1ae77e3bccef26 192.168.1.29:7005
       slots:[10923-16383] (5461 slots) master
    S: 5bff0d79a4f212d01120332af97129887e7e1218 192.168.1.29:7006
       replicates dd9ef3065622a05602a3ae42b365ff2180ff3936
    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 192.168.1.27:7001)
    M: 121ba0dfba42436d0f54da329c54be441bf7023a 192.168.1.27:7001
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    S: 2676b046e71ecaffff15d68ca1337e90d918bf39 192.168.1.28:7004
       slots: (0 slots) slave
       replicates 121ba0dfba42436d0f54da329c54be441bf7023a
    S: 5bff0d79a4f212d01120332af97129887e7e1218 192.168.1.29:7006
       slots: (0 slots) slave
       replicates dd9ef3065622a05602a3ae42b365ff2180ff3936
    M: dd9ef3065622a05602a3ae42b365ff2180ff3936 192.168.1.28:7003
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: 3aed761b317ece72eb37178b1d930395f94bf360 192.168.1.27:7002
       slots: (0 slots) slave
       replicates e26bef0a1bba9629cd681fd49a1ae77e3bccef26
    M: e26bef0a1bba9629cd681fd49a1ae77e3bccef26 192.168.1.29:7005
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

**验证集群是否成功**  
登录任意一台实例

[root@sword-01 init.d]# redis-cli -h 192.168.1.27 -p 7001 -a redis-pass
    Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
    192.168.1.27:7001> pping
    (error) ERR unknown command `pping`, with args beginning with: 
    192.168.1.27:7001> ping
    PONG
    192.168.1.27:7001> set k1 v1
    (error) MOVED 12706 192.168.1.29:7005
    192.168.1.27:7001> set k1 v1
    (error) MOVED 12706 192.168.1.29:7005
    192.168.1.27:7001> set k1234123 v1