congbobo184 commented on issue #3131: Consumer stop receive messages from broker URL: https://github.com/apache/pulsar/issues/3131#issuecomment-450472568 When a subscription's consume rate less than produce rate will produce a large backlog, at this moment, I increase the consume note, the consume rate will increase. Sometimes ago, the consume rate will return to initial rate I haven't increase the note. I check the broker stats, some consumer's msgRateOut is 0.Then I unload the topic,the consume rate will increase,but sometimes ago,the consume rate will also return to initial rate 
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