About Kafka connection not on other machine problems connection refused

1. Confirm that the Server.properties in config is correct (including ip+ port 2181 Remember to see, with hostname words remember etc/hostnames below to see all the configuration is not, suggest with hostname convenient maintenance also reduce errors)

2. The time between the servers to unify time synchronization can check the Linux server time synchronization a lot (ntpdate)

3.zkserver.sh start to confirm that it's all started. At least half of them can be viewed with JPS

4.java-version Remember to check (I machine was loaded 1.7 suddenly inexplicable wonderful replaced with the old version 1.5)

About Kafka connection not on other machine problems connection refused