根据redis安装的第一个redis开始的
1.在redis.conf的目录下创建redis-cluster目录 mkdir redis-cluster
2.进入redis-cluster ,创建几个集群6001-6006
mkdir 6001 mkdir 6001 mkdir 6003 mkdir 6004 mkdir 6005 mkdir 6006
3.然后再创建data包
mkdir -p 6001/data 6002/data 6003/data 6004/data 6005/data 6006/data
4.复制redis.conf,到6001-6006里面去
cp redis.conf ./redis-cluster/6001 ....cp redis.conf ./redis-cluster/6006
5.修改每个redis.conf,把6001改成相应端口
port 6001(每个节点的端口号) daemonize yes bind 192.168.119.131(绑定当前机器 IP) dir /usr/local/redis-cluster/6001/data/(数据文件存放位置) pidfile /var/run/redis_6001.pid(pid 6001和port要对应) cluster-enabled yes(启动集群模式) cluster-config-file nodes6001.conf(6001和port要对应) cluster-node-timeout 15000 appendonly yes
全部修改:%s/6001/6002/g
6.查看启动是否成功 ps -el | grep redis
netstat -tlnp | grep redis
7.由于 Redis 集群需要使用 ruby 命令,所以我们需要安装 ruby 和相关接口
yum install ruby yum install rubygems gem install redis
7.1,有时安装gem install redis 会报 redis requires Ruby version >= 2.2.2
查了查资料,CentOS7 yum库中ruby的版本支持到 2.0.0,可gem 安装redis需要最低是2.2.2,自己编译的ruby源码,再执行还是报错
解决办法
7.1.1
1.安装RVM:
gpg2 --keyserver hkp://keys.gnupg.net --recv-keys D39DC0E3 curl -L get.rvm.io | bash -s stable find / -name rvm -print
/usr/local/rvm
/usr/local/rvm/src/rvm
/usr/local/rvm/src/rvm/bin/rvm
/usr/local/rvm/src/rvm/lib/rvm
/usr/local/rvm/src/rvm/scripts/rvm
/usr/local/rvm/bin/rvm
/usr/local/rvm/lib/rvm
/usr/local/rvm/scripts/rvm
source /usr/local/rvm/scripts/rvm
2.查看rvm库中已知的ruby版本
rvm list known
3.安装一个ruby版本
rvm install 2.3.3
Using /usr/local/rvm/gems/ruby-2.3.3
4.使用一个ruby版本
rvm use 2.3.3
Using /usr/local/rvm/gems/ruby-2.3.3
[5].设置默认版本
rvm use 2.3.3 --default
查看ruby版本:
ruby --version
ruby 2.3.3p222 (2016-11-21 revision 56859) [x86_64-linux]
安装redis: gem install redis
8. 192.168.31.245 是虚拟机地址 7000是指端口号
./redis-trib.rb create --replicas 1 192.168.88.134:6001 192.168.88.134:6002 192.168.88.134:6003 192.168.88.134:6004 192.168.88.134:6005 192.168.88.134:6006
8.1 redis集群报错Node is not empty。有可能报这个错
如果改了端口号,要注意,我只是改了上面添加了,下面的没有去掉,然后就一直这样了
想了一会发现这三个文件appendonly.aof dump.rdb nodes.conf是之前执行ip127.0.0.1时生成的,在我改为真机ip后在执行并没有生效。

这里解释一下dump.rdb文件:
dump.rdb是由Redis服务器自动生成的 默认情况下 每隔一段时间redis服务器程序会自动对数据库做一次遍历,把内存快照写在一个叫做“dump.rdb”的文件里,这个持久化机制叫做SNAPSHOT。有了SNAPSHOT后,如果服务器宕机,重新启动redis服务器程序时redis会自动加载dump.rdb,将数据库状态恢复到上一次做SNAPSHOT时的状态。
知道原因后就好办了,解决办法:
1)将每个节点下aof、rdb、nodes.conf本地备份文件删除;
2)172.168.63.201:7001> flushdb #清空当前数据库(可省略)
3)之后再执行脚本,成功执行;
输入 yes 即可,然后出现如下内容,说明安装成功
然后再启动,集群就算完成,注意redis要在3.0.0版本以后才能用,
java连接redis集群
public static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig(); // 最大连接数 poolConfig.setMaxTotal(1); // 最大空闲数 poolConfig.setMaxIdle(1); // 最大允许等待时间,如果超过这个时间还未获取到连接,则会报JedisException异常: // Could not get a resource from the pool poolConfig.setMaxWaitMillis(1000); Set<HostAndPort> nodes = new LinkedHashSet<HostAndPort>(); nodes.add(new HostAndPort("192.168.83.128", 6379)); nodes.add(new HostAndPort("192.168.83.128", 6380)); nodes.add(new HostAndPort("192.168.83.128", 6381)); nodes.add(new HostAndPort("192.168.83.128", 6382)); nodes.add(new HostAndPort("192.168.83.128", 6383)); nodes.add(new HostAndPort("192.168.83.128", 6384)); JedisCluster cluster = new JedisCluster(nodes, poolConfig); String name = cluster.get("name"); System.out.println(name); cluster.set("age", "18"); System.out.println(cluster.get("age")); try { cluster.close(); } catch (IOException e) { e.printStackTrace(); } }
spring 配置redis集群
<context:property-placeholder ignore-unresolvable="true" location="classpath:yonyou.properties" /> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <property name="maxTotal" value="1000"/> <property name="maxIdle" value="10"/> <property name="minIdle" value="1"/> <property name="maxWaitMillis" value="30000"/> <property name="testOnBorrow" value="true"/> <property name="testOnReturn" value="true"/> <property name="testWhileIdle" value="true"/> <!-- <property name="testWhileIdle" value="true"/> --> </bean> <bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool" destroy-method="destroy"> <constructor-arg ref="jedisPoolConfig"/> <constructor-arg> <!--如果以后需要扩展集群,只需要复制一份redis,修改端口,然后在这里配置即可--> <list> <bean class="redis.clients.jedis.JedisShardInfo"> <constructor-arg index="0" value="127.0.0.1"/> <constructor-arg index="1" value="6379"/> <constructor-arg index="2" value="instance:01"/> </bean> <bean class="redis.clients.jedis.JedisShardInfo"> <constructor-arg index="0" value="127.0.0.1"/> <constructor-arg index="1" value="6380"/> <constructor-arg index="2" value="instance:02"/> </bean> <bean class="redis.clients.jedis.JedisShardInfo"> <constructor-arg index="0" value="127.0.0.1"/> <constructor-arg index="1" value="6381"/> <constructor-arg index="2" value="instance:03"/> </bean> </list> </constructor-arg> </bean> <!--java帮我们同步sentinel的信息,将主从信息同步到客户端来--> <bean class="redis.clients.jedis.JedisSentinelPool"> <constructor-arg index="0" value="mymaster"/> <constructor-arg index="1"> <set> <value>127.0.0.1:26379</value> </set> </constructor-arg> <constructor-arg index="2" ref="jedisPoolConfig"/> </bean>
集群验证过的
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd"> <!--注入 不然会报 No bean named 'springSessionRepositoryFilter' is defined --> <context:component-scan base-package="org.springframework.web.filter.DelegatingFilterProxy" /> <!-- 将session放入redis --> <bean id="redisHttpSessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <property name="maxInactiveIntervalInSeconds" value="600" /> </bean> <!-- 连接池配置 --> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <!-- 最大连接数 --> <property name="maxTotal" value="30" /> <!-- 最大空闲连接数 --> <property name="maxIdle" value="10" /> <!-- 每次释放连接的最大数目 --> <property name="numTestsPerEvictionRun" value="1024" /> <!-- 释放连接的扫描间隔(毫秒) --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <!-- 连接最小空闲时间 --> <property name="minEvictableIdleTimeMillis" value="1800000" /> <!-- 连接空闲多久后释放, 当空闲时间>该值 且 空闲连接>最大空闲连接数 时直接释放 --> <property name="softMinEvictableIdleTimeMillis" value="10000" /> <!-- 获取连接时的最大等待毫秒数,小于零:阻塞不确定的时间,默认-1 --> <property name="maxWaitMillis" value="1500" /> <!-- 在获取连接的时候检查有效性, 默认false --> <property name="testOnBorrow" value="true" /> <!-- 在空闲时检查有效性, 默认false --> <property name="testWhileIdle" value="true" /> <!-- 连接耗尽时是否阻塞, false报异常,ture阻塞直到超时, 默认true --> <property name="blockWhenExhausted" value="false" /> </bean> <bean id="clusterRedisNodes1" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6001" type="int" /> </bean> <bean id="clusterRedisNodes2" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6002" type="int" /> </bean> <bean id="clusterRedisNodes3" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6003" type="int" /> </bean> <bean id="clusterRedisNodes4" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6004" type="int" /> </bean> <bean id="clusterRedisNodes5" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6005" type="int" /> </bean> <bean id="clusterRedisNodes6" class="org.springframework.data.redis.connection.RedisNode"> <constructor-arg value="192.168.88.134" /> <constructor-arg value="6006" type="int" /> </bean> <bean id="redisClusterConfiguration" class="org.springframework.data.redis.connection.RedisClusterConfiguration"> <property name="clusterNodes"> <set> <ref bean="clusterRedisNodes1" /> <ref bean="clusterRedisNodes2" /> <ref bean="clusterRedisNodes3" /> <ref bean="clusterRedisNodes4" /> <ref bean="clusterRedisNodes5" /> <ref bean="clusterRedisNodes6" /> </set> </property> </bean> <!-- Redis连接 --> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <constructor-arg ref="jedisPoolConfig" /> <!-- <property name="password" value="${redis.password}"></property> --> <constructor-arg ref="redisClusterConfiguration" /> </bean> <!-- 缓存序列化方式 <bean id="keySerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer" /> <bean id="valueSerializer" class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer" /> --> <!-- 缓存 <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"> <property name="connectionFactory" ref="jedisConnectionFactory" /> <property name="keySerializer" ref="keySerializer" /> <property name="valueSerializer" ref="valueSerializer" /> <property name="hashKeySerializer" ref="keySerializer" /> <property name="hashValueSerializer" ref="valueSerializer" /> </bean> <bean id="redisCacheManager" class="org.springframework.data.redis.cache.RedisCacheManager"> <constructor-arg index="0" ref="redisTemplate" /> <property name="defaultExpiration" value="1000" /> </bean> --> </beans>