spring-data-redis  哨兵配置例子

spring 自带的哨兵确实简化了高可用性的配置，使用起来也比较简单。

首先是spring-redis-sentinel.xml（文件名可以随意命名）配置文件：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:aop="http://www.springframework.org/schema/aop"    xsi:schemaLocation="        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">    <!-- Spring自动将该包目录下标记为@Service的所有类作为spring的Bean -->    <context:component-scan base-package="com.zz.redis" /><!--     <context:property-placeholder location="classpath:conf/redis/redis.properties" /> -->    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">        <property name="maxTotal" value="2048" />        <property name="maxIdle" value="200" />        <property name="numTestsPerEvictionRun" value="1024" />        <property name="timeBetweenEvictionRunsMillis" value="30000" />        <property name="minEvictableIdleTimeMillis" value="-1" />        <property name="softMinEvictableIdleTimeMillis" value="10000" />        <property name="maxWaitMillis" value="1500" />        <property name="testOnBorrow" value="true" />        <property name="testWhileIdle" value="true" />        <property name="testOnReturn" value="false" />        <property name="jmxEnabled" value="true" />        <property name="blockWhenExhausted" value="false" />    </bean>    <bean id="redisSentinelConfiguration"        class="org.springframework.data.redis.connection.RedisSentinelConfiguration">        <property name="master">            <bean class="org.springframework.data.redis.connection.RedisNode">                <property name="name" value="mymaster">                </property>            </bean>        </property>        <property name="sentinels">            <set>                <bean class="org.springframework.data.redis.connection.RedisNode">                    <constructor-arg name="host" value="192.168.125.128" />                    <constructor-arg name="port" value="26379" />                </bean>                <bean class="org.springframework.data.redis.connection.RedisNode">                    <constructor-arg name="host" value="192.168.125.129" />                    <constructor-arg name="port" value="26379" />                </bean>                <bean class="org.springframework.data.redis.connection.RedisNode ">                    <constructor-arg name="host" value="192.168.125.130" />                    <constructor-arg name="port" value="26379" />                </bean>            </set>        </property>    </bean>    <bean id="redisConnectionFactory"        class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"        p:password="pwdisadmin">        <constructor-arg name="sentinelConfig" ref="redisSentinelConfiguration"></constructor-arg>        <constructor-arg name="poolConfig" ref="jedisPoolConfig"></constructor-arg>    </bean>    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">        <property name="connectionFactory" ref="redisConnectionFactory" />    </bean></beans>

上面的p:password="pwdisadmin"指的是redis的密码，mymaster指的是redis哨兵中配置的名字。

然后再程序中就可以通过注解或者getBean获取redisTemplate的实例了。

public static void main(String[] args) {        ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(                "classpath:conf/spring-redis-sentinel.xml");        RedisTemplate<String, String> template = (RedisTemplate<String, String>) context.getBean("redisTemplate");        template.opsForValue().set("aaa", "aaabbb");        System.err.println(template.opsForValue().get("aaa"));    }

在配置中我们只需要指定哨兵的配置就可以了。在这个里面指定好哨兵后,哨兵会自动发redis的主的redis server的，

配置好后，启动项目日志打印如下(例子如下：)

一月 19, 2017 4:33:35 下午 redis.clients.jedis.JedisSentinelPool initSentinels信息: Trying to find master from available Sentinels...一月 19, 2017 4:33:35 下午 redis.clients.jedis.JedisSentinelPool initSentinels信息: Redis master running at 10.10.39.104:16379, starting Sentinel listeners...一月 19, 2017 4:33:35 下午 redis.clients.jedis.JedisSentinelPool initPool信息: Created JedisPool to master at 10.10.39.104:16379

一个配置sentinel的例子

sentinel.conf 

================================


port 26379
dir "/letv/redis-sentinel/tmp"
//monitor master 10.120.16.45 6379
sentinel monitor shoppingcar1 10.120.16.45 6379 1
sentinel down-after-milliseconds shoppingcar1 3000
sentinel failover-timeout shoppingcar1 5000
sentinel auth-pass mycart1 passwordabc


sentinel config-epoch mycart1 1554
sentinel leader-epoch mycart1 1975

//monitor slave 10.120.16.61 16379

sentinel known-slave mycart1 10.120.16.61 16379

//other sentinels
sentinel known-sentinel mycart1 10.120.16.161 26379 12345abc
sentinel known-sentinel mycart1 10.120.16.61 26379 12345abc
sentinel known-sentinel mycart1 10.120.16.184 26379 12345abc


sentinel current-epoch 1975