kafka启动报错：
FATAL Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
kafka.common.InconsistentBrokerIdException: Configured broker.id 1 doesn't match stored broker.id 3 in meta.properties. If you moved your data, make sure your configured broker.id matches. If you intend to create a new broker, you should remove all data in your data directories (log.dirs).
at kafka.server.KafkaServer.getBrokerId(KafkaServer.scala:688)
at kafka.server.KafkaServer.startup(KafkaServer.scala:194)
at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:39)
at kafka.Kafka$.main(Kafka.scala:67)
at kafka.Kafka.main(Kafka.scala)
原因：由于 两次启动不同的kafka（版本不同）,将broker的信息存入到相同目录下，产生错误，也有可能是同一版本两次启动启动之间，是记录信息的错误，集群中，各个节点配置文件meta.properties 存在相同的broker.id,
具体的路径看config下的server.properties
，解决方法：
把这个log.dirs目录下文件全部删除即可。