異常描述
新建了一個項目，我自己的服務器安裝了一個redis，安裝的時候，基本上都是默認參數，然后SpringBoot配置如下：
spring:
redis:
cluster:
nodes: qianxunclub.com:6666
在項目啟動的時候，報錯：
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'redisTemplate' defined in class path resource [com/qianxunclub/starter/redis/autoconfigure/RedisConfig.class]: Unsatisfied dependency expressed through method 'redisTemplate' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration$RedisConnectionConfiguration.class]: Invocation of init method failed; nested exception is redis.clients.jedis.exceptions.JedisDataException: ERR This instance has cluster support disabled
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:749)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:467)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 33 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'redisConnectionFactory' defined in class path resource [org/springframework/boot/autoconfigure/data/redis/RedisAutoConfiguration$RedisConnectionConfiguration.class]: Invocation of init method failed; nested exception is redis.clients.jedis.exceptions.JedisDataException: ERR This instance has cluster support disabled
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:835)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:741)
... 47 common frames omitted
Caused by: redis.clients.jedis.exceptions.JedisDataException: ERR This instance has cluster support disabled
at redis.clients.jedis.Protocol.processError(Protocol.java:127)
at redis.clients.jedis.Protocol.process(Protocol.java:161)
at redis.clients.jedis.Protocol.read(Protocol.java:215)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
at redis.clients.jedis.Connection.getRawObjectMultiBulkReply(Connection.java:285)
at redis.clients.jedis.Connection.getObjectMultiBulkReply(Connection.java:291)
at redis.clients.jedis.Jedis.clusterSlots(Jedis.java:3376)
at redis.clients.jedis.JedisClusterInfoCache.discoverClusterNodesAndSlots(JedisClusterInfoCache.java:54)
at redis.clients.jedis.JedisClusterConnectionHandler.initializeSlotsCache(JedisClusterConnectionHandler.java:39)
at redis.clients.jedis.JedisClusterConnectionHandler.<init>(JedisClusterConnectionHandler.java:17)
at redis.clients.jedis.JedisSlotBasedConnectionHandler.<init>(JedisSlotBasedConnectionHandler.java:20)
at redis.clients.jedis.JedisSlotBasedConnectionHandler.<init>(JedisSlotBasedConnectionHandler.java:15)
at redis.clients.jedis.BinaryJedisCluster.<init>(BinaryJedisCluster.java:41)
at redis.clients.jedis.JedisCluster.<init>(JedisCluster.java:83)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createCluster(JedisConnectionFactory.java:306)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createCluster(JedisConnectionFactory.java:280)
at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.afterPropertiesSet(JedisConnectionFactory.java:241)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
... 58 common frames omitted
Disconnected from the target VM, address: '127.0.0.1:52157', transport: 'socket'
Process finished with exit code 1
異常分析
從報錯誤的信息ERR This instance has cluster support disabled很明顯看得出來，是沒有啟動redis集群功能，可是我項目配置的集群的配置方式，要么修改代碼為單機配置，要么修改redis為集群方式。
解決辦法
1、可以修改配置為單機redis配置：
spring:
redis:
host: qianxunclub.com
port: 6666
2、在安裝redis的目錄找到redis配置文件redis.conf，里面會找到配置：
# cluster-enabled yes
把注釋去掉就可以了
cluster-enabled yes