springboot redis 订阅报错

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#redis发布订阅 #com.lambdaworks.redis.RedisCom #浮生梦浮生

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本文详细介绍了在使用Spring Session Redis时遇到的CONFIG命令被禁用问题，提供了通过开启notify-keyspace-events和自定义ConfigureRedisAction为NO_OP的解决方案。

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在对接一个投资项目时，启动项目出现如下错误，本来想直接问对接人，但他们没有出现这种情况，只能看一下。

由下面异常可以看出，Redis security建议禁用CONFIG命令，以便远程用户无法重新配置实例。

RedisHttpSessionConfiguration需要在初始化期间访问它。托管的Redis服务，在默认情况下禁用此命令，并且没有重新启用该命令的选项。

而且spring-session-redis需要使用键空间通知(keyspace notification)这个功能。

解决方式： 1. 配置notify-keyspace-events 2. 设置ConfigureRedisAction为NO_OP不加载CONFIG

其中在https://github.com/spring-projects/spring-session/issues/124，作者给出了比较详细的答案

下面看我的解决方式。

1. 开启notify-keyspace-events

2. 自定义配置加载ConfigureRedisAction为NO_OP

@Bean
public static ConfigureRedisAction configureRedisAction() {
   return ConfigureRedisAction.NO_OP;
}

下面是错误

2018-12-09 00:28:19.245 WARN 16648 --- [ main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'enableRedisKeyspaceNotificationsInitializer' defined in class path resource [org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfiguration.class]: Invocation of init method failed; nested exception is org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is com.lambdaworks.redis.RedisCommandExecutionException: ERR unknown command 'CONFIG'
2018-12-09 00:28:21.487 INFO 16648 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2018-12-09 00:28:21.496 INFO 16648 --- [ost-startStop-2] o.s.c.n.zuul.ZuulFilterInitializer : Stopping filter initializer context listener
2018-12-09 00:28:21.516 WARN 16648 --- [ost-startStop-2] o.a.c.loader.WebappClassLoaderBase : The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
java.lang.Object.wait(Native Method)
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
com.mysql.cj.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)
2018-12-09 00:28:21.531 INFO 16648 --- [ main] utoConfigurationReportLoggingInitializer :

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'enableRedisKeyspaceNotificationsInitializer' defined in class path resource [org/springframework/session/data/redis/config/annotation/web/http/RedisHttpSessionConfiguration.class]: Invocation of init method failed; nested exception is org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is com.lambdaworks.redis.RedisCommandExecutionException: ERR unknown command 'CONFIG'