Redis进阶（3）——在Linux上基于Docker容器Redis搭建一主二从三哨兵 & SpringBoot整合Redis哨兵

比眉伴天荒 2023-10-14 19:11 5阅读 0赞

#### 目录 ####

*  引出
 *  redis主从搭建：一主2从
 *   *  6389Master
     *   *  准备文件redis.conf
         *  redis.log日志文件
         *  运行容器
         *  查看日志方式tail
     *  6390Slave
     *  6391Slave
 *  创建3哨兵
 *   *  创建文件夹sentinel
     *  创建运行哨兵容器
     *  问题：脑裂问题
 *  SpringBoot整合Redis哨兵
 *   *  启动1主2从，3哨兵
     *  pom.xml文件
     *  写配置类，列出哨兵
     *  写service存个值
     *  写测试类
 *  总结

## 引出 ##

--------------------

1.Redis的1主2从搭建，主要是redis.conf文件的修改，核心bing允许任何端口访问；  
2.Redis的3哨兵搭建，设置好自己的端口，监听的主的ip和端口，运行即可；  
3.SpringBoot整合Redis哨兵初步；

## redis主从搭建：一主2从 ##

6389

6390

6391

### 6389Master ###

![在这里插入图片描述][7b8a8ed56785437dbeb92f93ea375ce1.png]

#### 准备文件redis.conf ####

[root@localhost software]# mkdir -p 6389/conf 6389/data 6389/log
    [root@localhost software]# ls
    6380  6381  6389  canal  rabbitmq
    [root@localhost software]# cd 6389
    [root@localhost 6389]# ls
    conf  data  log
    [root@localhost 6389]# tree
    .
    ├── conf
    ├── data
    └── log
    
    3 directories, 0 files

> 拷贝之前的配置文件

![在这里插入图片描述][461bd91daee14e82b763359602b92775.png]

[root@localhost conf]# pwd
    /usr/local/software/6389/conf
    [root@localhost conf]# cp ../../6380/conf/redis.conf ./
    [root@localhost conf]# ls
    redis.conf
    [root@localhost conf]#

> conf的修改：允许任何端口访问

![在这里插入图片描述][314ebc0a2053433eb1a3641b1f0c32e6.png]

> 关掉保护，可随意访问

![在这里插入图片描述][535906e0e8b64641b4be92b5766c49d0.png]

> 端口映射6389—6379

![在这里插入图片描述][b774298841e14d55991af15fbde45340.png]

> 为哨兵做的准备，暴露服务器的ip

![在这里插入图片描述][4dae019f42be458eb2d98296582611c4.png]  
![在这里插入图片描述][a8a9d19133cf434c88faad2187bdf623.png]

![在这里插入图片描述][c20fcc5e2df2461c8c7cfc153dfe1a59.png]

> 打开AOF持久化方法

![在这里插入图片描述][daa875cb2ac449d08ecb5674b72d6793.png]

> vim文件显示行数冒号 ：set number

![在这里插入图片描述][0db0ebbc182b428ea362d14ee4e9ad6d.png]

> 快速跳转：行号+gg

![在这里插入图片描述][f593cc94de4a4a6f87985d3797398036.png]

#### redis.log日志文件 ####

![在这里插入图片描述][930aa0a10fae4fd3acd9861b72442b06.png]

linux中文件可执行

> X 执行  
> R 读  
> W 写  
> RWX 111

#### 运行容器 ####

> 修改时区,，日志正常：-v /etc/localtime:/etc/localtime \\

> docker run  
> \-i：以交互模式运行容器  
> \-t：为容器重新分配一个伪输入终端  
> –name :容器名称  
> –privileged: 设置容器公开权限（默认为true）  
> \-p :映射端口 linux端口: 容器内置端口(mysql默认端口为3306)  
> \-v : linux挂载文件夹/文件和容器内路径的映射  
> \-e: 容器的环境变量（设置mysql默认用户名&密码)  
> \-d: 后台运行容器，并返回容器ID

docker run -it \
    --name redis_6389 \
    --privileged \
    -p 6389:6379 \
    --network pet_docker_net \
    --ip 172.18.12.80 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/6389/conf/redis.conf:/usr/local/etc/redis/redis.conf \
    -v /usr/local/software/6389/data/:/data \
    -v /usr/local/software/6389/log/redis.log:/var/log/redis.log \
    -d redis \
    /usr/local/etc/redis/redis.conf

#### 查看日志方式tail ####

cat/tail/head

cat 日志文件名称

tail 日志文件名称 — 最新的日志内容：最新的日志

head 日志文件

![在这里插入图片描述][272627ea0f3344de844daf46c86fc337.png]

[root@localhost log]# tail redis.log |grep version
    1:C 12 Aug 2023 11:02:56.436 # Redis version=6.2.6, bits=64, commit=00000000, modified=0, pid=1, just started
    [root@localhost log]#

> 从aof中读取的日志

![在这里插入图片描述][88d35e571b9e41db94cb327d03a5c59f.png]

![在这里插入图片描述][f4ec64cff7ee44329ecda4a0afbd303e.png]

### 6390Slave ###

> 获取主的内部的ip地址

![在这里插入图片描述][3a1514d293b345a089e6e2bc3e0e20c5.png]

> “IPAddress”: “172.18.12.80”, 从配置主的端口

![在这里插入图片描述][362d76fd3ea14f40b2aeaa2fbf255ccf.png]

运行容器

docker run -it \
    --name redis_6390 \
    --privileged \
    -p 6390:6379 \
    --network pet_docker_net \
    --ip 172.18.12.85 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/6390/conf/redis.conf:/usr/local/etc/redis/redis.conf \
    -v /usr/local/software/6390/data/:/data \
    -v /usr/local/software/6390/log/redis.log:/var/log/redis.log \
    -d redis \
    /usr/local/etc/redis/redis.conf

![在这里插入图片描述][fb0d974f8351407b810cb78b77f56696.png]

### 6391Slave ###

[root@localhost 6391]# cd conf
    [root@localhost conf]# cp ../../6390/conf/redis.conf ./
    [root@localhost conf]# pwd
    /usr/local/software/6391/conf
    [root@localhost conf]# ll
    总用量 92
    -rwxr-xr-x. 1 root root 93909 8月  12 12:44 redis.conf
    [root@localhost conf]# cd ..
    [root@localhost 6391]# ls
    conf  data  log
    [root@localhost 6391]# cd log/
    [root@localhost log]# touch redis.log
    [root@localhost log]# ll
    总用量 0
    -rw-r--r--. 1 root root 0 8月  12 12:45 redis.log
    [root@localhost log]# chmod 777 redis.log 
    [root@localhost log]# ll
    总用量 0
    -rwxrwxrwx. 1 root root 0 8月  12 12:45 redis.log

运行容器

docker run -it \
    --name redis_6391 \
    --privileged \
    -p 6391:6379 \
    --network pet_docker_net \
    --ip 172.18.12.86 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/6391/conf/redis.conf:/usr/local/etc/redis/redis.conf \
    -v /usr/local/software/6391/data/:/data \
    -v /usr/local/software/6391/log/redis.log:/var/log/redis.log \
    -d redis \
    /usr/local/etc/redis/redis.conf

![在这里插入图片描述][d8591768319045bb9f27ec7afc9fba90.png]

> 搭建成功1主2从

![在这里插入图片描述][936bcef33e12410ea232a22c5560360c.png]

[root@localhost log]# docker exec -it redis_6389 bash
    root@013a85fa5f85:/data# redis-cli
    127.0.0.1:6379> info replication
    # Replication
    role:master
    connected_slaves:2
    slave0:ip=172.18.12.85,port=6379,state=online,offset=784,lag=1
    slave1:ip=172.18.12.86,port=6379,state=online,offset=784,lag=1
    master_failover_state:no-failover
    master_replid:9db2c05f3c084af02e48840cc9aa6467304ecd20
    master_replid2:0000000000000000000000000000000000000000
    master_repl_offset:784
    second_repl_offset:-1
    repl_backlog_active:1
    repl_backlog_size:1048576
    repl_backlog_first_byte_offset:1
    repl_backlog_histlen:784
    127.0.0.1:6379>

![在这里插入图片描述][3484ef963a864743abecaa595aa4a4f0.png]

## 创建3哨兵 ##

> 奇数个哨兵。
> 
> 三哨兵策略： 1主二从

![在这里插入图片描述][e254712d975c4febb36106e0b04f4699.png]

![在这里插入图片描述][d524df6120594925b9c4d74c69409b0f.png]

![在这里插入图片描述][de43b65c04ac4b06a1c9dc02fe6c07ab.png]

### 创建文件夹sentinel ###

![在这里插入图片描述][13795cef3b574c08b2700be88f0dc824.png]

![在这里插入图片描述][a761532fcf9f485c88dfde6daca14299.png]

[root@localhost conf]# touch sentinel.conf
    [root@localhost conf]# vim sentinel.conf 
    [root@localhost conf]# cat sentinel.conf 
    # 所以无需担心端口重复使用
    # 如果需要在单机
    port 26389
    
    # 设定密码认证
    # requirepass 123456
    
    # 配置哨兵的监控参数
    # 格式：sentinel monitor <master-name> <ip> <redis-port> <quorum>
    # master-name是为这个被监控的master起的名字
    # ip是被监控的master的IP或主机名。因为Docker容器之间可以使用容器名访问，所以这里写master节点的容器名
    # redis-port是被监控节点所监听的端口号
    # quorom设定了当几个哨兵判定这个节点失效后，才认为这个节点真的失效了
    sentinel monitor redis_6389 192.168.111.130 6389 2
    
    # 连接主节点的密码
    # 格式：sentinel auth-pass <master-name> <password>
    # sentinel auth-pass local-master 123456
    
    # master在连续多长时间无法响应PING指令后，就会主观判定节点下线，默认是30秒
    # 格式：sentinel down-after-milliseconds <master-name> <milliseconds>
    sentinel down-after-milliseconds redis_6389 30000
    
    [root@localhost conf]#

### 创建运行哨兵容器 ###

docker run -it \
    --name sentinel_26389 \
    --privileged \
    --network pet_docker_net \
    --sysctl net.core.somaxconn=1024 \
    --ip 172.18.12.90 \
    -p 26389:26389 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/sentinel/26389/conf:/user/local/etc/redis/conf/ \
    -d redis \
    redis-sentinel /user/local/etc/redis/conf/sentinel.conf

docker run -it \
    --name sentinel_26390 \
    --privileged \
    --network pet_docker_net \
    --sysctl net.core.somaxconn=1024 \
    --ip 172.18.12.91 \
    -p 26390:26390 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/sentinel/26390/conf:/user/local/etc/redis/conf/ \
    -d redis \
    redis-sentinel /user/local/etc/redis/conf/sentinel.conf

docker run -it \
    --name sentinel_26391 \
    --privileged \
    --network pet_docker_net \
    --sysctl net.core.somaxconn=1024 \
    --ip 172.18.12.92 \
    -p 26391:26391 \
    -v /etc/localtime:/etc/localtime \
    -v /usr/local/software/sentinel/26391/conf:/user/local/etc/redis/conf/ \
    -d redis \
    redis-sentinel /user/local/etc/redis/conf/sentinel.conf

> 1主2从搭建成功

![在这里插入图片描述][e556ce4e93f54cf19df58e6e2ced5127.png]

> 查看哨兵日志

![在这里插入图片描述][598de0cedde945689e6b6391874f612c.png]

### 问题：脑裂问题 ###

![在这里插入图片描述][e25154f2d9524120b2e9a488f4af658f.png]

问题：

1.  主由于某种网络原因，被哨兵判断为被动下线， 踢下线，2秒钟上线？？？
2.  脑裂问题?
3.

![在这里插入图片描述][2b495c61010d4bfb82ce4a61ac5b693d.png]

## SpringBoot整合Redis哨兵 ##

### 启动1主2从，3哨兵 ###

![在这里插入图片描述][c5745020ec8d4391a3c89ad3b313a1b1.png]

> \[root@localhost log\]\# docker exec -it redis\_6389 bash  
> root@013a85fa5f85:/data\# redis-cli  
> 127.0.0.1:6379> info replication

![在这里插入图片描述][5bc2611737494d2095979fd11266b41b.png]

### pom.xml文件 ###

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.tianju.redis</groupId>
        <artifactId>springboot-redis-deep</artifactId>
        <version>1.0-SNAPSHOT</version>
    
        <properties>
            <maven.compiler.source>8</maven.compiler.source>
            <maven.compiler.target>8</maven.compiler.target>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        </properties>
    
        
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.6.13</version>
        </parent>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-redis</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
            </dependency>
    
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.12</version>
                <scope>test</scope>
            </dependency>
    
        </dependencies>
    </project>

### 写配置类，列出哨兵 ###

![在这里插入图片描述][544e87f1479b4041a92da108161aa565.png]

server:
      port: 9099
    
    spring:
      redis:
        sentinel:
          master: redis_6389
          nodes: 192.168.111.130:26389,192.168.111.130:26390,192.168.111.130:26391

### 写service存个值 ###

package com.tianju.redis.service.impl;
    
    import com.tianju.redis.service.ISentinelService;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.data.redis.core.StringRedisTemplate;
    import org.springframework.stereotype.Service;
    
    @Service
    public class SentinelServiceImpl implements ISentinelService {
        
    
        @Autowired
        private StringRedisTemplate stringRedisTemplate;
    
        @Override
        public void add() {
        
            stringRedisTemplate.opsForValue().set("stu", "pet");
        }
    }

### 写测试类 ###

package com.tianju.redis.service.impl;
    
    import com.tianju.redis.service.ISentinelService;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    
    import static org.junit.Assert.*;
    
    @SpringBootTest
    @RunWith(SpringJUnit4ClassRunner.class)
    public class SentinelServiceImplTest {
        
    
        @Autowired
        private ISentinelService sentinelService;
    
        @Test
        public void add() {
        
            sentinelService.add();
        }
    }

--------------------

## 总结 ##

[7b8a8ed56785437dbeb92f93ea375ce1.png]: https://img-blog.csdnimg.cn/7b8a8ed56785437dbeb92f93ea375ce1.png
[461bd91daee14e82b763359602b92775.png]: https://img-blog.csdnimg.cn/461bd91daee14e82b763359602b92775.png
[314ebc0a2053433eb1a3641b1f0c32e6.png]: https://img-blog.csdnimg.cn/314ebc0a2053433eb1a3641b1f0c32e6.png
[535906e0e8b64641b4be92b5766c49d0.png]: https://img-blog.csdnimg.cn/535906e0e8b64641b4be92b5766c49d0.png
[b774298841e14d55991af15fbde45340.png]: https://img-blog.csdnimg.cn/b774298841e14d55991af15fbde45340.png
[4dae019f42be458eb2d98296582611c4.png]: https://img-blog.csdnimg.cn/4dae019f42be458eb2d98296582611c4.png
[a8a9d19133cf434c88faad2187bdf623.png]: https://img-blog.csdnimg.cn/a8a9d19133cf434c88faad2187bdf623.png
[c20fcc5e2df2461c8c7cfc153dfe1a59.png]: https://img-blog.csdnimg.cn/c20fcc5e2df2461c8c7cfc153dfe1a59.png
[daa875cb2ac449d08ecb5674b72d6793.png]: https://img-blog.csdnimg.cn/daa875cb2ac449d08ecb5674b72d6793.png
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[f593cc94de4a4a6f87985d3797398036.png]: https://img-blog.csdnimg.cn/f593cc94de4a4a6f87985d3797398036.png
[930aa0a10fae4fd3acd9861b72442b06.png]: https://img-blog.csdnimg.cn/930aa0a10fae4fd3acd9861b72442b06.png
[272627ea0f3344de844daf46c86fc337.png]: https://img-blog.csdnimg.cn/272627ea0f3344de844daf46c86fc337.png
[88d35e571b9e41db94cb327d03a5c59f.png]: https://img-blog.csdnimg.cn/88d35e571b9e41db94cb327d03a5c59f.png
[f4ec64cff7ee44329ecda4a0afbd303e.png]: https://img-blog.csdnimg.cn/f4ec64cff7ee44329ecda4a0afbd303e.png
[3a1514d293b345a089e6e2bc3e0e20c5.png]: https://img-blog.csdnimg.cn/3a1514d293b345a089e6e2bc3e0e20c5.png
[362d76fd3ea14f40b2aeaa2fbf255ccf.png]: https://img-blog.csdnimg.cn/362d76fd3ea14f40b2aeaa2fbf255ccf.png
[fb0d974f8351407b810cb78b77f56696.png]: https://img-blog.csdnimg.cn/fb0d974f8351407b810cb78b77f56696.png
[d8591768319045bb9f27ec7afc9fba90.png]: https://img-blog.csdnimg.cn/d8591768319045bb9f27ec7afc9fba90.png
[936bcef33e12410ea232a22c5560360c.png]: https://img-blog.csdnimg.cn/936bcef33e12410ea232a22c5560360c.png
[3484ef963a864743abecaa595aa4a4f0.png]: https://img-blog.csdnimg.cn/3484ef963a864743abecaa595aa4a4f0.png
[e254712d975c4febb36106e0b04f4699.png]: https://img-blog.csdnimg.cn/e254712d975c4febb36106e0b04f4699.png
[d524df6120594925b9c4d74c69409b0f.png]: https://img-blog.csdnimg.cn/d524df6120594925b9c4d74c69409b0f.png
[de43b65c04ac4b06a1c9dc02fe6c07ab.png]: https://img-blog.csdnimg.cn/de43b65c04ac4b06a1c9dc02fe6c07ab.png
[13795cef3b574c08b2700be88f0dc824.png]: https://img-blog.csdnimg.cn/13795cef3b574c08b2700be88f0dc824.png
[a761532fcf9f485c88dfde6daca14299.png]: https://img-blog.csdnimg.cn/a761532fcf9f485c88dfde6daca14299.png
[e556ce4e93f54cf19df58e6e2ced5127.png]: https://img-blog.csdnimg.cn/e556ce4e93f54cf19df58e6e2ced5127.png
[598de0cedde945689e6b6391874f612c.png]: https://img-blog.csdnimg.cn/598de0cedde945689e6b6391874f612c.png
[e25154f2d9524120b2e9a488f4af658f.png]: https://img-blog.csdnimg.cn/e25154f2d9524120b2e9a488f4af658f.png
[2b495c61010d4bfb82ce4a61ac5b693d.png]: https://img-blog.csdnimg.cn/2b495c61010d4bfb82ce4a61ac5b693d.png
[c5745020ec8d4391a3c89ad3b313a1b1.png]: https://img-blog.csdnimg.cn/c5745020ec8d4391a3c89ad3b313a1b1.png
[5bc2611737494d2095979fd11266b41b.png]: https://img-blog.csdnimg.cn/5bc2611737494d2095979fd11266b41b.png
[544e87f1479b4041a92da108161aa565.png]: https://img-blog.csdnimg.cn/544e87f1479b4041a92da108161aa565.png