kafka注册异常

问题描述：

　　kafka注册异常,提示brokers id已经被注册过

-- ::,] FATAL [Kafka Server ], Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)
java.lang.RuntimeException: A broker is already registered on the path /brokers/ids/. This probably indicates that you either have configured
 a brokerid that is already in use, or else you have shutdown this broker and restarted it faster than the zookeeper timeout so it appears to be re-registering.    at kafka.utils.ZkUtils.registerBrokerInZk(ZkUtils.scala:)
    at kafka.utils.ZkUtils.registerBrokerInZk(ZkUtils.scala:)
    at kafka.server.KafkaHealthcheck.register(KafkaHealthcheck.scala:)
    at kafka.server.KafkaHealthcheck.startup(KafkaHealthcheck.scala:)
    at kafka.server.KafkaServer.startup(KafkaServer.scala:)
    at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:)
    at kafka.Kafka$.main(Kafka.scala:)
    at kafka.Kafka.main(Kafka.scala)
[-- ::,] INFO [Kafka Server ], shutting down (kafka.server.KafkaServer)

问题解决：

　　根据日志提示/brokers 已经在zookeeper注册，所以需要在zookeeper中删除/brokers，或者修改kafka的server.properties配置文件的broker id

ls  /   查看zookeeper中根目录

rmr /brokers    删除kafka-brokers在zookeeper