Ack operation exception has been propagated to send message request

[daniel-y]

org.apache.rocketmq.client.exception.MQClientException: Send [3] times, still failed, cost [1767]ms, Topic: Benchmark_Topic_0, BrokersSent: [1_0, 1_0, 1_0]
See https://rocketmq.apache.org/docs/bestPractice/06FAQ for further details.
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:702)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1406)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.send(DefaultMQProducerImpl.java:1348)
at org.apache.rocketmq.client.producer.DefaultMQProducer.send(DefaultMQProducer.java:351)
at org.apache.rocketmq.example.simple.Producer.main(Producer.java:43)
Caused by: org.apache.rocketmq.client.exception.MQBrokerException: CODE: 1 DESC: Ack operation failed, check point not found BROKER: 192.168.123.208:8081
For more information, please visit the url, https://rocketmq.apache.org/docs/bestPractice/06FAQ
at org.apache.rocketmq.client.impl.MQClientAPIImpl.processSendResponse(MQClientAPIImpl.java:782)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessageSync(MQClientAPIImpl.java:622)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:604)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.sendMessage(MQClientAPIImpl.java:548)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendKernelImpl(DefaultMQProducerImpl.java:895)
at org.apache.rocketmq.client.impl.producer.DefaultMQProducerImpl.sendDefaultImpl(DefaultMQProducerImpl.java:632)
... 4 more

[ShadowySpirits]

Maybe duplicate with #416