根據redis安裝的第一個redis開始的
1.在redis.conf的目錄下創建redis-cluster目錄 mkdir redis-cluster
2.進入redis-cluster ,創建幾個集群6001-6006
mkdir 6001 mkdir 6001 mkdir 6003 mkdir 6004 mkdir 6005 mkdir 6006
3.然后再創建data包
mkdir -p 6001/data 6002/data 6003/data 6004/data 6005/data 6006/data
4.復制redis.conf,到6001-6006里面去
cp redis.conf ./redis-cluster/6001 ....cp redis.conf ./redis-cluster/6006
5.修改每個redis.conf,把6001改成相應端口
port 6001(每個節點的端口號) daemonize yes bind 192.168.119.131(綁定當前機器 IP) dir /usr/local/redis-cluster/6001/data/(數據文件存放位置) pidfile /var/run/redis_6001.pid(pid 6001和port要對應) cluster-enabled yes(啟動集群模式) cluster-config-file nodes6001.conf(6001和port要對應) cluster-node-timeout 15000 appendonly yes
全部修改:%s/6001/6002/g
6.查看啟動是否成功 ps -el | grep redis
netstat -tlnp | grep redis
7.由於 Redis 集群需要使用 ruby 命令,所以我們需要安裝 ruby 和相關接口
yum install ruby yum install rubygems gem install redis
7.1,有時安裝gem install redis 會報 redis requires Ruby version >= 2.2.2
查了查資料,CentOS7 yum庫中ruby的版本支持到 2.0.0,可gem 安裝redis需要最低是2.2.2,自己編譯的ruby源碼,再執行還是報錯
解決辦法
7.1.1
1.安裝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庫中已知的ruby版本
rvm list known
3.安裝一個ruby版本
rvm install 2.3.3
Using /usr/local/rvm/gems/ruby-2.3.3
4.使用一個ruby版本
rvm use 2.3.3
Using /usr/local/rvm/gems/ruby-2.3.3
[5].設置默認版本
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]
安裝redis: gem install redis
8. 192.168.31.245 是虛擬機地址 7000是指端口號
./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集群報錯Node is not empty。有可能報這個錯
如果改了端口號,要注意,我只是改了上面添加了,下面的沒有去掉,然后就一直這樣了
想了一會發現這三個文件appendonly.aof dump.rdb nodes.conf是之前執行ip127.0.0.1時生成的,在我改為真機ip后在執行並沒有生效。

這里解釋一下dump.rdb文件:
dump.rdb是由Redis服務器自動生成的 默認情況下 每隔一段時間redis服務器程序會自動對數據庫做一次遍歷,把內存快照寫在一個叫做“dump.rdb”的文件里,這個持久化機制叫做SNAPSHOT。有了SNAPSHOT后,如果服務器宕機,重新啟動redis服務器程序時redis會自動加載dump.rdb,將數據庫狀態恢復到上一次做SNAPSHOT時的狀態。
知道原因后就好辦了,解決辦法:
1)將每個節點下aof、rdb、nodes.conf本地備份文件刪除;
2)172.168.63.201:7001> flushdb #清空當前數據庫(可省略)
3)之后再執行腳本,成功執行;
輸入 yes 即可,然后出現如下內容,說明安裝成功
然后再啟動,集群就算完成,注意redis要在3.0.0版本以后才能用,
java連接redis集群
public static void main(String[] args) { JedisPoolConfig poolConfig = new JedisPoolConfig(); // 最大連接數 poolConfig.setMaxTotal(1); // 最大空閑數 poolConfig.setMaxIdle(1); // 最大允許等待時間,如果超過這個時間還未獲取到連接,則會報JedisException異常: // 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> <!--如果以后需要擴展集群,只需要復制一份redis,修改端口,然后在這里配置即可--> <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幫我們同步sentinel的信息,將主從信息同步到客戶端來--> <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>
集群驗證過的
<?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 不然會報 No bean named 'springSessionRepositoryFilter' is defined --> <context:component-scan base-package="org.springframework.web.filter.DelegatingFilterProxy" /> <!-- 將session放入redis --> <bean id="redisHttpSessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <property name="maxInactiveIntervalInSeconds" value="600" /> </bean> <!-- 連接池配置 --> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> <!-- 最大連接數 --> <property name="maxTotal" value="30" /> <!-- 最大空閑連接數 --> <property name="maxIdle" value="10" /> <!-- 每次釋放連接的最大數目 --> <property name="numTestsPerEvictionRun" value="1024" /> <!-- 釋放連接的掃描間隔(毫秒) --> <property name="timeBetweenEvictionRunsMillis" value="30000" /> <!-- 連接最小空閑時間 --> <property name="minEvictableIdleTimeMillis" value="1800000" /> <!-- 連接空閑多久后釋放, 當空閑時間>該值 且 空閑連接>最大空閑連接數 時直接釋放 --> <property name="softMinEvictableIdleTimeMillis" value="10000" /> <!-- 獲取連接時的最大等待毫秒數,小於零:阻塞不確定的時間,默認-1 --> <property name="maxWaitMillis" value="1500" /> <!-- 在獲取連接的時候檢查有效性, 默認false --> <property name="testOnBorrow" value="true" /> <!-- 在空閑時檢查有效性, 默認false --> <property name="testWhileIdle" value="true" /> <!-- 連接耗盡時是否阻塞, false報異常,ture阻塞直到超時, 默認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連接 --> <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> <!-- 緩存序列化方式 <bean id="keySerializer" class="org.springframework.data.redis.serializer.StringRedisSerializer" /> <bean id="valueSerializer" class="org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer" /> --> <!-- 緩存 <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>