@Bean
    public MetaDataSubscriber metaDataCacheSubscriber() {
        return new MetaDataCacheSubscriber();
    }
Cache meta data subscriber.

@return the meta data subscriber
shenyu-spring-boot-starter/shenyu-spring-boot-starter-plugin/shenyu-spring-boot-starter-plugin-global/src/main/java/org/apache/shenyu/springboot/starter/plugin/global/GlobalPluginConfiguration.java