Even if they are wrong, were you pointing to a zookeeper cluster where another Kafka cluster was started up ?
Thanks Neha On Thu, May 23, 2013 at 7:53 AM, Yu, Libo <libo...@citi.com> wrote: > I will answer my own question. It turns out the zookeeper addresses in > server.properties are > wrong. But it is not easy to tell from the error message. > > Regards, > > Libo > > From: Yu, Libo [ICG-IT] > Sent: Thursday, May 23, 2013 10:48 AM > To: 'users@kafka.apache.org' > Subject: Failed to launch 0.8 stable server > > Hi, > > After the zookeepers were up, when I tired to launch kafka server, I got > this error: > [2013-05-23 10:45:24,072] FATAL Fatal error during KafkaServerStable > startup. Prepare to shutdown (kafka.server.KafkaServerStartable) > java.lang.RuntimeException: A broker is already registered on the path > /brokers/ids/1. 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$.registerBrokerInZk(ZkUtils.scala:194) > at > kafka.server.KafkaZooKeeper.kafka$server$KafkaZooKeeper$$registerBrokerInZk(KafkaZooKeeper.scala:51) > at kafka.server.KafkaZooKeeper.startup(KafkaZooKeeper.scala:41) > at kafka.server.KafkaServer.startup(KafkaServer.scala:78) > at > kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:34) > at kafka.Kafka$.main(Kafka.scala:46) > at kafka.Kafka.main(Kafka.scala) > [2013-05-23 10:45:24,074] INFO [Kafka Server 1], shutting down > (kafka.server.KafkaServer) > [2013-05-23 10:45:24,076] INFO Closing zookeeper client... > (kafka.server.KafkaZooKeeper) > [2013-05-23 10:45:24,077] INFO Terminate ZkClient event thread. > (org.I0Itec.zkcl > > Everything is freshly installed. It is so frustrating. > > Regards, > > Libo > >
