Error while executing topic command : Replication factor: 2 larger than available brokers: 1

     命令行创建kafka主题的命令报错如下：

[root@master bin]# ./kafka-topics.sh --create --topic itcasttopic --partitions 3 --replication-factor 2 --zookeeper master:2181,slave1:2181,slave2:2181 
Error while executing topic command : Replication factor: 2 larger than available brokers: 1.

原因：自己的kafka只有一台，所以只能有一个副本，改正代码如下

[root@master bin]# ./kafka-topics.sh --create --topic itcasttopic --partitions 1 --replication-factor 1 --zookeeper master:2181

运行结果：

Created topic itcasttopic.

创建成功