TheR1sing3un commented on issue #4835:
URL: https://github.com/apache/rocketmq/issues/4835#issuecomment-1218099573

   
![WechatIMG16](https://user-images.githubusercontent.com/87409330/185161030-c9f04154-4471-4e8a-b2c8-c958441bc0cd.jpeg)
   backgroud: 
   - in asymmetric network partition,
   - controller-leader can connect to other controller-followers
   - all brokers can connect to two controller-follower, but can't connect to 
controller-leader
   - because the network in controllers is normal, so the controller-leader is 
always leader
   - because none of brokers can send hearbeat to controller-master, so the 
master can't elect any new master in brokers
   - so now the cluster lose the HA
   
   


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