redis主从复制以及哨兵机制

r囧r小猫 2022-04-13 14:40 268阅读 0赞

# 环境准备 #

搭建单台redis以及使用：

[https://blog.csdn.net/qq\_38270106/article/details/83049130][https_blog.csdn.net_qq_38270106_article_details_83049130]

再clone两台虚拟机

我这里三台虚拟机IP如下

> 192.168.33.130（主）
> 
> 192.168.33.131（从）
> 
> 192.168.33.132（从）

# 修改两台从服务器配置文件  #

cd /usr/local/redis/etc

vi redis.conf

> slaveof 192.168.33.130 6379  
> 
> masterauth 123456   --- 主redis服务器配置了密码,则需要配置

![20181129231817341.png][]

# 测试 #

**主redis**

![20181129232422185.png][]

**从reids**

![20181129232502604.png][]

# 哨兵模式修改配置 #

**停掉三台服务器，**192.168.33.131**服务器修改配置**

1.拷贝配置文件到etc目录

> cd /usr/local/redis-4.0.11/
> 
> cp sentinel.conf /usr/local/redis/etc/

2.修改sentinel.conf配置文件

cd /usr/local/redis/etc

vi sentinel.conf

> sentinel monitor mymast  192.168.33.130 6379 1      \#主节点 名称 IP 端口号 选举次数
> 
> sentinel auth-pass mymaster 123456

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70][]

3. 修改心跳检测 30毫秒

> sentinel down-after-milliseconds mymaster 30

![2018113001153652.png][]

4. 做多少合格节点

> sentinel parallel-syncs mymaster 2

5. 分别启动三个redis

> cd /usr/local/redis/bin
> 
> ./redis-server /usr/local/redis/etc/redis.conf

6. 启动哨兵模式

> cd /usr/local/redis/bin
> 
> ./redis-server /usr/local/redis/etc/sentinel.conf --sentinel &

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 1][] 7. 停止主服务器

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 2][]

此时之前的slaver：192.168.33.132变成了master了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 3][]

[https_blog.csdn.net_qq_38270106_article_details_83049130]: https://blog.csdn.net/qq_38270106/article/details/83049130
[20181129231817341.png]: /images/20220413/fd3544d04f124a55bd71c29db90d1d07.png
[20181129232422185.png]: /images/20220413/fb514b29cfc14e4b8a7a484522927e6c.png
[20181129232502604.png]: /images/20220413/92f6070208724673b99a3f4e7ddfebf8.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70]: /images/20220413/a2a17ff729834757bb297b5c15c1b524.png
[2018113001153652.png]: /images/20220413/24f424003f2640889ec3eca4a8033e7f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 1]: /images/20220413/db48145496234a2cbe639662558fe359.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 2]: /images/20220413/d7ed0d57748f4b8ca4ecbb3c0a3db5d0.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MjcwMTA2_size_16_color_FFFFFF_t_70 3]: /images/20220413/c39e2680a6064925b943213cf2647e5a.png