Hi and Thanks, Excuse me, The Kafka version is 0.11 and Zookeeper version is 3.4.10
I've check Zookeeper logs and sessions are expiring and renewing continuously there. I use the same Zookeeper cluster for Hadoop HA and it works well. I Answer the same question with more details in the following link: Here <https://stackoverflow.com/questions/48885469/kafka-zookeeper-connection-drop-continuously>