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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/01/04 16:41:57 UTC

[GitHub] [rocketmq] devfat commented on issue #3559: Make sure the list of message queues is not null before using selecting a queue. in orderly message sending example.

devfat commented on issue #3559:
URL: https://github.com/apache/rocketmq/issues/3559#issuecomment-1004974820


   @ShannonDing 
   The main process of sending message is in method org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl#sendSelectImpl.
   
   The `topicPublishInfo.ok()` is called before calling MessageQueueSelector#select, what any else situation will cause the empty   message queue list?


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