Redis简记

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Redis简记

安装

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# 下载
wget http://download.redis.io/releases/redis-5.0.3.tar.gz
# 解压
tar -zxvf redis-5.0.3.tar.gz -C ../install/
# 编译
cd src/
sudo make & sudo make install

如果没安装make

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sudo apt-get install make

如果没安装gcc

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sudo apt-get install gcc

如果报错：jemalloc/jemalloc.h: No such file or directory

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make MALLOC=libc

启动

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redis-server redis.conf &

停止

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redis-cli -a 123456 shutdown

集群（小哨兵）

master

配置主库

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# vi redis.conf
# bind 127.0.0.1
requirepass "123456"
masterauth "123456"

启动主库

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redis-server redis.conf &
# 登录
redis-cli -a 123456
# 查看信息
INFO

sentinel

配置哨兵

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# vi sentinel.conf
sentinel monitor mymaster 192.168.0.100 6379 2
sentinel auth-pass mymaster 123456

参数2表示：只要sentinel集群中有2个认为master无法连接之后，就会进行主从切换。

启动哨兵

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redis-sentinel sentinel.conf &

slave

配置从库

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# vi redis.conf
# bind 127.0.0.1
requirepass "123456"
replicaof 192.168.0.100 6379
masterauth "123456"

启动从库

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redis-server redis.conf &
# 登录
redis-cli -a 123456
# 查看信息
INFO

sentinel

配置哨兵

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# vi sentinel.conf
sentinel monitor mymaster 192.168.0.100 6379 2
sentinel auth-pass mymaster 123456

启动哨兵

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redis-sentinel sentinel.conf &

测试

如果想弄清楚小哨兵的工作模式，必须亲手测试，比如杀死主库等。

SpringBoot

配置

1.application.yml

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spring:
  redis:
    host: localhost
    port: 6379
    password: 123456
    sentinel:
      master: mymaster
      nodes: localhost:26379

2.RedisConfigurer.java

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package com.kangyonggan.demo.configuration;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**
 * @author kangyonggan
 * @since 2019-03-26
 */
@Configuration
public class RedisConfigurer {

    @Bean
    RedisTemplate redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate redisTemplate = new RedisTemplate();
        redisTemplate.setConnectionFactory(connectionFactory);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new JdkSerializationRedisSerializer());

        return redisTemplate;
    }
}