向Kafka主题发布消息中的错误

Question

我是新卡夫卡，并试图为它设置环境。我试图运行一个节点Kafka，但我在这方面遇到了错误。

在mac上执行以下步骤

1. brew install zookeeper
2. brew install kafka
3. zkServer start
4.  kafka-server-start.sh /usr/local/etc/kafka/server.properties
5.bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test
6.bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test 
This is a message

但我会跟着错误走。如果我错过了什么，请告诉我

[2015-10-19 15:48:46,632] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,637] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,638] ERROR Failed to collate messages by topic, partition due to: Failed to fetch topic metadata for topic: test (kafka.producer.async.DefaultEventHandler)
[2015-10-19 15:48:46,746] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,749] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,749] ERROR Failed to collate messages by topic, partition due to: Failed to fetch topic metadata for topic: test (kafka.producer.async.DefaultEventHandler)
[2015-10-19 15:48:46,860] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,863] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,863] ERROR Failed to collate messages by topic, partition due to: Failed to fetch topic metadata for topic: test (kafka.producer.async.DefaultEventHandler)
[2015-10-19 15:48:46,973] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,977] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:46,977] ERROR Failed to collate messages by topic, partition due to: Failed to fetch topic metadata for topic: test (kafka.producer.async.DefaultEventHandler)
[2015-10-19 15:48:47,083] WARN Error while fetching metadata [{TopicMetadata for topic test -> 
No partition metadata for topic test due to kafka.common.LeaderNotAvailableException}] for topic [test]: class kafka.common.LeaderNotAvailableException  (kafka.producer.BrokerPartitionInfo)
[2015-10-19 15:48:47,084] ERROR Failed to send requests for topics test with correlation ids in [0,8] (kafka.producer.async.DefaultEventHandler)
[2015-10-19 15:48:47,086] ERROR Error in handling batch of 1 events (kafka.producer.async.ProducerSendThread)
kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries.
    at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:90)
    at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:105)
    at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:88)
    at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:68)
    at scala.collection.immutable.Stream.foreach(Stream.scala:547)
    at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:67)
    at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:45)

谢谢

Answer 1

阿洛克，这个很常见的港口和主机问题。

请确认一下动物园管理员和卡夫卡经纪人的主机和港口。我假设您已经在本地配置了Kafka，所以请确保您提供了正确的主机名。

运行bellow命令以确保在您的命令中提到的在端口上运行的和Kafka Broker：

netstat -a \ grep端口

如果你还面临任何问题，请告诉我。

Answer 2

通过将值localhost设置为config/server.properties文件中的以下属性，解决了我这边的问题：

host.name
advertised.host.name

Answer 3

试着用适当的配置启动动物园管理员，就像您使用kafka一样：

bin/zookeeper-server-start.sh config/zookeeper.properties

您可以删除代理日志，然后重试：

rm -R /tmp/kafka-logs (default location)

如果你仍然有问题，检查日志。