ymwneu commented on issue #504: No route info of this topic, ffff URL: https://github.com/apache/rocketmq/issues/504#issuecomment-435012282 服务端自动创建topic，设置autoCreateTopicEnable=true就行了。 FAQ中有解答，http://rocketmq.apache.org/docs/faq/ 报No route info of this topic这个错，可能是请求nameserver失败。 代码在DefaultMQProducerImpl#tryToFindTopicPublishInfo，里面逻辑并不是很多，自己debug一下就清楚了。
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