1. 创建topic
/opt/cloudera/parcels/KAFKA-2.0.2-1.2.0.2.p0.5/lib/kafka/bin/kafka-topics.sh --create --zookeeper duan140:2181 --replication-factor 1 --partitions 1 --topic test
报错：
Caused by: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /brokers/ids
解决办法：
zookeeper查看节点：
连接：/opt/cloudera/parcels/CDH-5.12.2-1.cdh5.12.2.p0.4/lib/zookeeper/bin/zkCli.sh -server duan140:2181
查看 : ls /
[hive_zookeeper_namespace_hive, zookeeper, hbase, kafka]
因为在安装过程中设置
ZooKeeper Root（zookeeper.chroot）为/kafka，该为默认即可。
2. 发送消息
/opt/cloudera/parcels/KAFKA-2.0.2-1.2.0.2.p0.5/lib/kafka/bin/kafka-console-producer.sh --broker-list duan140:9092 --topic test
报错：
clients.NetworkClient: Bootstrap broker duan140:9092 disconnected