BUG REPORT

1. Please describe the issue you observed:

• What did you do (The steps to reproduce)?
  To push consumers, set consume messages status to RECONSUME_LATER always.
• What did you expect to see?
  messages were sent to the broker, and consume again later.
• What did you see instead?
  sometimes, sent message back failed, time out exception thow.

2. Please tell us about your environment:

• What is your OS?
  MacOS
• What is your client version?
  2.0.1
• What is your RocketMQ version?
  4.6.0

3. Other information (e.g. detailed explanation, logs, related issues, suggestions on how to fix, etc):

  string brokerAddr;
  if (!brokerName.empty())
    brokerAddr = getFactory()->findBrokerAddressInPublish(brokerName);
  else
    brokerAddr = socketAddress2IPPort(msg.getStoreHost());
  try {
    getFactory()->getMQClientAPIImpl()->consumerSendMessageBack(brokerAddr, msg, getGroupName(), delayLevel, 3000,
                                                                getMaxReconsumeTimes(), getSessionCredentials());
  } catch (MQException& e) {
    LOG_ERROR(e.what());
    return false;
  }
  return true;
}