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
