xox9001 edited a comment on issue #657: query new topic first message fail,but message list have message URL: https://github.com/apache/rocketmq/issues/657#issuecomment-451243786 ``` config := new(rocketmq.ProducerConfig) config.GroupID = "testGroup" config.NameServer = "localhost:9876" producer,error := rocketmq.NewProducer(config) if error != nil { fmt.Println(error) } producer.Start() defer producer.Shutdown() fmt.Printf("Producer: %s started... \n", producer) var i= 0 //for { msg := fmt.Sprintf("Hello RocketMQ-%d", i) msgT := new(rocketmq.Message) msgT.Topic = "orderlyTest" msgT.Body = "msg,I:"+strconv.Itoa(i) msgT.DelayTimeLevel = 1 //msgT.Keys = strconv.Itoa(i) //msgT.Tags = "test" //result,err := producer.SendMessageSync(msgT) selector := queueSelectorByOrderID{} result,err := producer.SendMessageOrderly(msgT,selector,4,3) if err != nil { fmt.Println(err) } //fmt.Println(fmt.Sprintf("send message: %s result: %s", msg, result)) glog.Infof("send message: %s result: %s", msg, result) time.Sleep(1 * time.Second) i++ //} //producer.Shutdown() 981FA8C0000066120000C0EFB6140100 return ```
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