Kafka broker service not running

Hi,

This is my first posting to this list, and I am relatively new to Kafka.
I am using below:

Ambari Stack HDP-2.3
Kafka 2.3.2.0-2950
Zookeeper 3.4.6.2.2.0.0

I have been using Kafka on a small (4 node) VM cluster running CentOS 6.5.

From Ambari, all services start without any problem, then within seconds, Kafka Broker service stops automatically without generating any alert. Logs have almost no helping information, for ex:

/var/log/kafka/server.log files:
[2015-11-26 16:11:40,162] INFO Closing socket connection to /103.2xx.xx.xxx (kafka.network.Processor)

Any thoughts where I should start to look?