Redis 3主3从集群部署

骑猪看日落 2022-12-08 05:21 114阅读 0赞

## 1.安装好Redis ##

## 2.创建相关文件夹 ##

# mkdir -p /opt/app/redis-5.0.4/cluster/6379
    # mkdir -p /opt/app/redis-5.0.4/cluster/6380
     
    
    # cd /opt/app/redis-5.0.4
    
    # ls
    00-RELEASENOTES  BUGS     CONTRIBUTING  deps     Makefile   README.md   runtest          runtest-sentinel  src    utils
    bin              cluster  COPYING       INSTALL  MANIFESTO  redis.conf  runtest-cluster  sentinel.conf     tests
    
    # cp redis.conf /opt/app/redis-5.0.4/cluster/6379
    # cp redis.conf /opt/app/redis-5.0.4/cluster/6380

## 3.修改配置文件 ##

### 修改6379端口配置文件 ###

vim /opt/app/redis-5.0.4/cluster/6379/redis.conf

编辑配置文件内容：

# 绑定服务器IP地址
    bind 10.1.72.15
     
    # 绑定端口号，必须修改，以此来区分Redis实例
    port 6379
     
    # 后台运行
    daemonize yes
     
    # 修改pid进程文件名，以端口号命名
    pidfile /var/run/redis-6379.pid
     
    # 修改日志文件名称，以端口号为目录来区分
    logfile /opt/app/redis-5.0.4/cluster/6379/redis.log
     
    # 修改数据文件存放地址，以端口号为目录名来区分
    dir /opt/app/redis-5.0.4/cluster/6379/
     
    # 启用集群
    cluster-enabled yes
     
    # 配置每个节点的配置文件，同样以端口号为名称
    cluster-config-file nodes-6379.conf
     
    # 配置集群节点的超时时间，可改可不改
    cluster-node-timeout 15000
     
    # 关闭记录日志
    # appendfsync always
    # appendfsync everysec
    appendfsync no
    
    # 关闭持久化
    自动持久化规则配置
    # save 900 1
    # save 300 10
    # save 60 10000
    # redis也可以关闭自动持久化，注释掉这些save配置，或者save “”

### 修改6380端口配置文件 ###

vim /opt/app/redis-5.0.4/cluster/6380/redis.conf

编辑配置文件内容：

# 绑定服务器IP地址
    bind 10.1.72.15
     
    # 绑定端口号，必须修改，以此来区分Redis实例
    port 6380
     
    # 后台运行
    daemonize yes
     
    # 修改pid进程文件名，以端口号命名
    pidfile /var/run/redis-6380.pid
     
    # 修改日志文件名称，以端口号为目录来区分
    logfile /opt/app/redis-5.0.4/cluster/6380/redis.log
     
    # 修改数据文件存放地址，以端口号为目录名来区分
    dir /opt/app/redis-5.0.4/cluster/6380/
     
    # 启用集群
    cluster-enabled yes
     
    # 配置每个节点的配置文件，同样以端口号为名称
    cluster-config-file nodes-6380.conf
     
    # 配置集群节点的超时时间，可改可不改
    cluster-node-timeout 15000
     
    # 关闭记录日志
    # appendfsync always
    # appendfsync everysec
    appendfsync no
    
    # 关闭持久化
    自动持久化规则配置
    # save 900 1
    # save 300 10
    # save 60 10000
    # redis也可以关闭自动持久化，注释掉这些save配置，或者save “”

另外两台机器同样配置

ip16，ip17仿效ip15进行安装和配置

# scp -r redis-5.0.4 root@10.1.72.16:/opt/app/
    
    # scp -r redis-5.0.4 root@10.1.72.17:/opt/app/

修改配置文件IP地址

# 绑定服务器IP地址
    bind 10.1.72.16
    
    ---------------
    
    # 绑定服务器IP地址
    bind 10.1.72.17

### 配置环境变量 ###

方便于全局直接使用Redis命令

export REDIS_HOME=/opt/app/redis-5.0.4
    export PATH=$REDIS_HOME/bin:$PATH
    source /etc/profile

## 4.单独启动3台Redis ##

单独启动各服务器：ip15、ip16、ip17启动Redis

# redis-server /opt/app/redis-5.0.4/cluster/6379/redis.conf 
    # redis-server /opt/app/redis-5.0.4/cluster/6380/redis.conf   
    # ps aux|grep redis
    root      23423  0.1  0.2 32323  2548 ?    Ssl  05:01   0:00 redis-server 10.1.72.15:6379 [cluster]
    root      23423  0.4  0.2 32323  2548 ?    Ssl  05:01   0:00 redis-server 10.1.72.15:6380 [cluster]

## 5.创建集群 ##

redis-cli --cluster create 10.1.72.15:6379 10.1.72.15:6380 10.1.72.16:6379 10.1.72.16:6380 10.1.72.17:6379 10.1.72.17:6380 --cluster-replicas 1
    
    #################################################################################
    
    [root@ip15 redis-5.0.4]# redis-cli --cluster create 10.1.72.15:6379 10.1.72.15:6380 10.1.72.16:6379 10.1.72.16:6380 10.1.72.17:6379 10.1.72.17:6380 --cluster-replicas 1
    
    >>> Performing hash slots allocation on 6 nodes...
    Master[0] -> Slots 0 - 5460
    Master[1] -> Slots 5461 - 10922
    Master[2] -> Slots 10923 - 16383
    Adding replica 10.1.72.15:6380 to 10.1.72.15:6379
    Adding replica 10.1.72.16:6380 to 10.1.72.16:6379
    Adding replica 10.1.72.17:6380 to 10.1.72.17:6379
    M: 3784c7f8683faf1adce14c43c4274300fff33c79 10.1.72.15:6379
       slots:[0-5460] (5461 slots) master
    S: 8181ed88dd5fa1b1165a0b3a4c632de508d5766a 10.1.72.15:6380
       replicates a88b9d61503decf0a4b599c169c693add15b2534
    M: dfb1bf054d740fa7d3c5487278457034f17ca617 10.1.72.16:6379
       slots:[5461-10922] (5462 slots) master
    S: bb5ae386877fda949e10f88f051a9006299fba21 10.1.72.16:6380
       replicates 3784c7f8683faf1adce14c43c4274300fff33c79
    M: a88b9d61503decf0a4b599c169c693add15b2534 10.1.72.17:6379
       slots:[10923-16383] (5461 slots) master
    S: c36284d8e41f05352dbd4b9c8e88be3d9ef24aba 10.1.72.17:6380
       replicates dfb1bf054d740fa7d3c5487278457034f17ca617
    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 10.1.72.15:6379)
    M: 3784c7f8683faf1adce14c43c4274300fff33c79 10.1.72.15:6379
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    S: 8181ed88dd5fa1b1165a0b3a4c632de508d5766a 10.1.72.15:6380
       slots: (0 slots) slave
       replicates a88b9d61503decf0a4b599c169c693add15b2534
    M: dfb1bf054d740fa7d3c5487278457034f17ca617 10.1.72.16:6379
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: bb5ae386877fda949e10f88f051a9006299fba21 10.1.72.16:6380
       slots: (0 slots) slave
       replicates 3784c7f8683faf1adce14c43c4274300fff33c79
    M: a88b9d61503decf0a4b599c169c693add15b2534 10.1.72.17:6379
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    S: c36284d8e41f05352dbd4b9c8e88be3d9ef24aba 10.1.72.17:6380
       slots: (0 slots) slave
       replicates dfb1bf054d740fa7d3c5487278457034f17ca617
    
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

## 6.检查集群状态 ##

[root@ip15 redis-5.0.4]# redis-cli --cluster check 10.1.72.15:6379
    
    10.1.72.15:6379 (3784c7f8...) -> 0 keys | 5461 slots | 1 slaves.
    10.1.72.16:6379 (dfb1bf05...) -> 0 keys | 5462 slots | 1 slaves.
    10.1.72.17:6379 (a88b9d61...) -> 0 keys | 5461 slots | 1 slaves.
    [OK] 0 keys in 3 masters.
    0.00 keys per slot on average.
    >>> Performing Cluster Check (using node 10.1.72.15:6379)
    M: 3784c7f8683faf1adce14c43c4274300fff33c79 10.1.72.15:6379
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    S: 8181ed88dd5fa1b1165a0b3a4c632de508d5766a 10.1.72.15:6380
       slots: (0 slots) slave
       replicates a88b9d61503decf0a4b599c169c693add15b2534
    M: dfb1bf054d740fa7d3c5487278457034f17ca617 10.1.72.16:6379
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: bb5ae386877fda949e10f88f051a9006299fba21 10.1.72.16:6380
       slots: (0 slots) slave
       replicates 3784c7f8683faf1adce14c43c4274300fff33c79
    M: a88b9d61503decf0a4b599c169c693add15b2534 10.1.72.17:6379
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    S: c36284d8e41f05352dbd4b9c8e88be3d9ef24aba 10.1.72.17:6380
       slots: (0 slots) slave
       replicates dfb1bf054d740fa7d3c5487278457034f17ca617
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.
    [root@ip101 redis-5.0.4]#

## 7.测试使用集群 ##

随意找到一个端口进行连接.

[root@ip15 redis-5.0.4]# redis-cli -c -h 10.1.72.17 -p 6380
    10.1.72.17:6380> set key1 value1
    -> Redirected to slot [9189] located at 10.1.72.17:6380
    OK
    10.1.72.17:6379> get key1
    "value1"
    10.1.72.17:6379>

## 8. 创建密码 ##

如果创建了集群之后，想要设置密码，进行一下操作，不需要去修改 redis.conf 配置文件

./redis-cli -c -h bigdata24 -p 6380 
    config set masterauth <yourpassword>
    config set requirepass <yourpassword>
    config rewrite

./redis-cli -c -h 10.1.72.17 -p 6380 
    config set masterauth Sicc123
    config set requirepass Sicc123
    config rewrite 
    auth "Sicc123"

加入了密码之后，进入到集群时，需要加 -a 选项 ，后面跟上你设置的密码

使用redis-cli 连接集群， 指定 -c 参数

指定连接的主机节点（-h 主机ip, -a redis的密码（前提要设置密码，每个节点的密码必须保持一致））

./redis-5.0.2/src/redis-cli -p 6380 -c -a Sicc123

查看节点信息命令：

> cluster info
    > cluster nodes