liony opened a new issue #1482: fix communicationMode URL: https://github.com/apache/rocketmq/issues/1482 cause sync as try once , and async can try once more, but this line code is not that meaning, and from the invoke context alse can explain there has some logic wrong. ![sync_invoke](https://user-images.githubusercontent.com/8624468/65567791-0db5a600-df8a-11e9-9d88-c1a7b3505440.jpg) ![async_invoke](https://user-images.githubusercontent.com/8624468/65567797-1312f080-df8a-11e9-81d8-5b74080196f9.jpg) so change the code: int timesTotal = communicationMode == CommunicationMode.**SYNC** ? 1 + this.defaultMQProducer.getRetryTimesWhenSendFailed() : 1; fix as: int timesTotal = communicationMode == CommunicationMode.**ASYNC** ? 1 + this.defaultMQProducer.getRetryTimesWhenSendFailed() : 1; here is the fixed file: [DefaultMQProducerImpl.java](https://github.com/apache/rocketmq/files/3650452/DefaultMQProducerImpl.txt)
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