Linux搭建redis集群记录

「爱情、让人受尽委屈。」 2021-11-09 00:46 348阅读 0赞

1.首先安装Redis，进入到usr/local目录下，下载redis压缩包

**cd /usr/local**

**wget https://github.com/antirez/redis/archive/5.0-rc3.tar.gz**

2.解压

**tar -zxvf 5.0-rc3.tar.gz**

将 redis-trib.rb 复制到 /usr/local目录下

** cp usr/local/redis-5.0-rc3/src/redis-trib.rb  /usr/local/**  
![20190123103419345.png][]

3.安装Development Tools

**yum update**

**yum groupinstall 'Development Tools'**

4.进入redis-5.0-rc3/deps目录执行以下命令

**cd usr/local/redis-5.0-rc3/deps**

**make hiredis lua jemalloc linenoise**

![20190123103821576.png][]

5.进入到redis-5.0-rc3/src目录下面进行安装

**cd usr/llocal/redis-5.0-rc3/src**

**make install **

出现如下说明安装成功

![20190123104301978.png][]

6.修改redis.conf配置文件

**vim /usr/local/redis-5.0-rc3/redis.conf**

7.修改以下几个参数

cluster-enabled  yes     //开启集群  把注释\#去掉

cluster-node-timeout  15000    //请求超时  默认15秒，可自行设置

bind 127.0.0.1----->>>\#bind 127.0.0.1 \#注释掉

protected-mode yes --->>>protected-mode no \#关闭保护模式

daemonize no --->>daemonize yes  \# 守护进程模式开启

appendonly  yes     //aof日志开启  有需要就开启，它会每次写操作都记录一条日志  
\-------------------------------------------------------------------------------------------------------------------------------

Redis集群至少需要3个节点，因为投票容错机制要求超过半数节点认为某个节点挂了该节点才是挂了，所以2个节点无法构成集群。 要保证集群的高可用，需要每个节点都有从节点，也就是备份节点，所以Redis集群至少需要6个

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis1**

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis2**

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis3**

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis4**

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis5**

**cp -r usr/local/redis-5.0-rc3 / usr/local/redis6**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xldHRlcnNz_size_16_color_FFFFFF_t_70][]

分别修改对应redis1-6里的redis.conf

**port  6379---->>port 7001  \#7001-7006**

**pidfile  /var/run/redis\_7001.pid   \#7001-7006**

**cluster-config-file  nodes\_7001.conf   \#7001-7006集群的配置  **

然后我们分别启动redis1-6

**/usr/local/redis1/src/redis-server /usr/local/redis1/redis.conf**

**/usr/local/redis2/src/redis-server /usr/local/redis2/redis.conf**

**/usr/local/redis3/src/redis-server /usr/local/redis3/redis.conf**

**/usr/local/redis4/src/redis-server /usr/local/redis4/redis.conf**

**/usr/local/redis5/src/redis-server /usr/local/redis5/redis.conf**

**/usr/local/redis6/src/redis-server /usr/local/redis6/redis.conf**

9.检查端口命令

**ps -ef | grep redis                   **

![20190806205815745.png][]

有端口监听说明启动成功。

然后我们要搭建集群需要安装ruby

**yum install centos-release-scl-rh**

**yum install rh-ruby24  -y**

**scl enable rh-ruby24 bash**

**gem install redis**

**ruby -v **

![20190806204145287.png][]

Redis 官方提供了 redis-trib.rb 这个工具，就在解压目录的 src 目录中，前面已将它复制到 /usr/local/ 目录中了，在usr/local目录下执行

./redis-trib.rb create --replicas 1 10.255.0.58:7001 10.255.0.58:7002 10.255.0.58:7003 10.255.0.58:7004 10.255.0.58:7005  10.255.0.58:7006

输入 yes 即可，然后出现如下内容，说明安装成功，按照命令顺序划分主从，7004从7001、7005从7002，7006从7003

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xldHRlcnNz_size_16_color_FFFFFF_t_70 1][]

集群验证

**redis-cli -h 10.255.0.58 -c -p 7002**

**set hello world**

**key \***

![20190806210330519.png][]

ctrl +c 再连接另一个redis

**redis-cli -h 10.255.0.58 -c -p 7003**

**get hello**

![20190806210501769.png][]

出现world说明集群成功

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[20190806205815745.png]: /images/20211108/b23e20814cab44a0a849289f6c6dfa90.png
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[20190806210501769.png]: /images/20211108/1c21d838fdac429ca4528d2ec78a3454.png